diff options
| author | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-25 18:53:34 +0300 |
|---|---|---|
| committer | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-25 18:53:34 +0300 |
| commit | 81ca6a1aed69885827b06f09fb7926e39b5c25a2 (patch) | |
| tree | 095aec8e4250f99422f20f78d45fdbf8830a1102 | |
| parent | 4260db6bc3cb9fb3d47d2d4cf0a7b6d49cf1e919 (diff) | |
| parent | 3a160a80c788d81e48acf19a2cf68f29cf125dae (diff) | |
Merge branch 'libodb-mysql' into multi-package
104 files changed, 16431 insertions, 0 deletions
diff --git a/libodb-mysql/.gitignore b/libodb-mysql/.gitignore new file mode 100644 index 0000000..1c363a0 --- /dev/null +++ b/libodb-mysql/.gitignore @@ -0,0 +1,25 @@ +# Compiler/linker output. +# +*.d +*.t +*.i +*.i.* +*.ii +*.ii.* +*.o +*.obj +*.gcm +*.pcm +*.ifc +*.so +*.dylib +*.dll +*.a +*.lib +*.exp +*.pdb +*.ilk +*.exe +*.exe.dlls/ +*.exe.manifest +*.pc diff --git a/libodb-mysql/GPLv2 b/libodb-mysql/GPLv2 new file mode 100644 index 0000000..3912109 --- /dev/null +++ b/libodb-mysql/GPLv2 @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/libodb-mysql/INSTALL b/libodb-mysql/INSTALL new file mode 100644 index 0000000..ef46275 --- /dev/null +++ b/libodb-mysql/INSTALL @@ -0,0 +1,6 @@ +The easiest way to build this package is with the bpkg package manager: + +$ bpkg build libodb-mysql + +But if you don't want to use the package manager, then you can also build it +manually using the standard build2 build system. diff --git a/libodb-mysql/LICENSE b/libodb-mysql/LICENSE new file mode 100644 index 0000000..9d92da1 --- /dev/null +++ b/libodb-mysql/LICENSE @@ -0,0 +1,20 @@ +Copyright (c) 2009-2024 Code Synthesis Tools CC. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License version 2 as +published by the Free Software Foundation. + +For more information on ODB licensing as well as for answers to +some of the common licensing questions, visit the ODB License +page: + +http://www.codesynthesis.com/products/odb/license.xhtml + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA diff --git a/libodb-mysql/README b/libodb-mysql/README new file mode 100644 index 0000000..5e2315a --- /dev/null +++ b/libodb-mysql/README @@ -0,0 +1,20 @@ +ODB is an object-relational mapping (ORM) system for C++. It provides +tools, APIs, and library support that allow you to persist C++ objects +to a relational database (RDBMS) without having to deal with tables, +columns, or SQL and without manually writing any of the mapping code. +For more information see: + +http://www.codesynthesis.com/products/odb/ + +This package contains the MySQL ODB runtime library. Every application +that includes code generated for the MySQL database will need to link +to this library. + +See the NEWS file for the user-visible changes from the previous release. + +See the LICENSE file for distribution conditions. + +See the INSTALL file for prerequisites and installation instructions. + +Send questions, bug reports, or any other feedback to the +odb-users@codesynthesis.com mailing list. diff --git a/libodb-mysql/build/.gitignore b/libodb-mysql/build/.gitignore new file mode 100644 index 0000000..4a730a3 --- /dev/null +++ b/libodb-mysql/build/.gitignore @@ -0,0 +1,3 @@ +config.build +root/ +bootstrap/ diff --git a/libodb-mysql/build/bootstrap.build b/libodb-mysql/build/bootstrap.build new file mode 100644 index 0000000..fb04583 --- /dev/null +++ b/libodb-mysql/build/bootstrap.build @@ -0,0 +1,10 @@ +# file : build/bootstrap.build +# license : GNU GPL v2; see accompanying LICENSE file + +project = libodb-mysql + +using version +using config +using dist +using test +using install diff --git a/libodb-mysql/build/export.build b/libodb-mysql/build/export.build new file mode 100644 index 0000000..459f96d --- /dev/null +++ b/libodb-mysql/build/export.build @@ -0,0 +1,9 @@ +# file : build/export.build +# license : GNU GPL v2; see accompanying LICENSE file + +$out_root/ +{ + include odb/mysql/ +} + +export $out_root/odb/mysql/lib{odb-mysql} diff --git a/libodb-mysql/build/root.build b/libodb-mysql/build/root.build new file mode 100644 index 0000000..c98d520 --- /dev/null +++ b/libodb-mysql/build/root.build @@ -0,0 +1,45 @@ +# file : build/root.build +# license : GNU GPL v2; see accompanying LICENSE file + +config [bool] config.libodb_mysql.develop ?= false + +# Configure which database client library to use for build2 versions greater +# than 0.12.0 and always use MySQL client library otherwise (due to the lack +# of the project configuration variables support). +# +if ($build.version.number > 12000000000) +{ + # Whether to use the MySQL or MariaDB client library. + # + config [string] config.libodb_mysql.client_lib ?= 'mysql' + + # Verify the config.libodb_mysql.client_lib configuration variable value and + # provide the short alias for it. + # + switch $config.libodb_mysql.client_lib + { + case 'mysql' + case 'mariadb' + client_lib = $config.libodb_mysql.client_lib + + default + fail "invalid config.libodb_mysql.client_lib value '$config.libodb_mysql.client_lib'" + } +} +else + client_lib = 'mysql' + +cxx.std = latest + +using cxx + +hxx{*}: extension = hxx +ixx{*}: extension = ixx +txx{*}: extension = txx +cxx{*}: extension = cxx + +if ($cxx.target.system == 'win32-msvc') + cxx.poptions += -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS + +if ($cxx.class == 'msvc') + cxx.coptions += /wd4251 /wd4275 /wd4800 diff --git a/libodb-mysql/buildfile b/libodb-mysql/buildfile new file mode 100644 index 0000000..a04e206 --- /dev/null +++ b/libodb-mysql/buildfile @@ -0,0 +1,9 @@ +# file : buildfile +# license : GNU GPL v2; see accompanying LICENSE file + +./: {*/ -build/} doc{INSTALL NEWS README} legal{GPLv2 LICENSE} manifest + +# Don't install tests or the INSTALL file. +# +tests/: install = false +doc{INSTALL}@./: install = false diff --git a/libodb-mysql/manifest b/libodb-mysql/manifest new file mode 100644 index 0000000..238b329 --- /dev/null +++ b/libodb-mysql/manifest @@ -0,0 +1,25 @@ +: 1 +name: libodb-mysql +version: 2.5.0-b.26.z +project: odb +summary: MySQL ODB runtime library +license: GPL-2.0-only +license: other: proprietary ; Not free/open source. +topics: C++, ORM, MySQL, MariaDB, SQL +description-file: README +changes-file: NEWS +url: https://www.codesynthesis.com/products/odb/ +doc-url: https://www.codesynthesis.com/products/odb/doc/manual.xhtml +src-url: https://git.codesynthesis.com/cgit/odb/libodb-mysql/ +email: odb-users@codesynthesis.com +build-warning-email: odb-builds@codesynthesis.com +builds: all +builds: -wasm +builds: -( +windows &gcc ) ; MinGW GCC is not supported by libmysqlclient. +requires: c++11 +depends: * build2 >= 0.16.0- +depends: * bpkg >= 0.16.0- +#depends: libmysqlclient >= 5.0.3 | libmariadb ^10.2.2 +depends: libmysqlclient >= 5.0.3 +depends: libodb [2.5.0-b.26.1 2.5.0-b.27) +depends: * cli ^1.2.0- ? ($config.libodb_mysql.develop) diff --git a/libodb-mysql/odb/mysql/auto-handle.hxx b/libodb-mysql/odb/mysql/auto-handle.hxx new file mode 100644 index 0000000..27e9f2b --- /dev/null +++ b/libodb-mysql/odb/mysql/auto-handle.hxx @@ -0,0 +1,94 @@ +// file : odb/mysql/auto-handle.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_AUTO_HANDLE_HXX +#define ODB_MYSQL_AUTO_HANDLE_HXX + +#include <odb/pre.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/mysql.hxx> + +namespace odb +{ + namespace mysql + { + template <typename H> + struct handle_traits; + + template <> + struct handle_traits<MYSQL> + { + static void + release (MYSQL* h) + { + mysql_close (h); + } + }; + + template <> + struct handle_traits<MYSQL_STMT> + { + static void + release (MYSQL_STMT* h) + { + mysql_stmt_close (h); + } + }; + + template <typename H> + class auto_handle + { + public: + auto_handle (H* h = 0) + : h_ (h) + { + } + + ~auto_handle () + { + if (h_ != 0) + handle_traits<H>::release (h_); + } + + H* + get () const + { + return h_; + } + + void + reset (H* h = 0) + { + if (h_ != 0) + handle_traits<H>::release (h_); + + h_ = h; + } + + H* + release () + { + H* h (h_); + h_ = 0; + return h; + } + + operator H* () const + { + return h_; + } + + private: + auto_handle (const auto_handle&); + auto_handle& operator= (const auto_handle&); + + private: + H* h_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_AUTO_HANDLE_HXX diff --git a/libodb-mysql/odb/mysql/binding.hxx b/libodb-mysql/odb/mysql/binding.hxx new file mode 100644 index 0000000..628233d --- /dev/null +++ b/libodb-mysql/odb/mysql/binding.hxx @@ -0,0 +1,45 @@ +// file : odb/mysql/binding.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_BINDING_HXX +#define ODB_MYSQL_BINDING_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/mysql-types.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT binding + { + public: + binding (): bind (0), count (0), version (0) {} + + binding (MYSQL_BIND* b, std::size_t n) + : bind (b), count (n), version (0) + { + } + + MYSQL_BIND* bind; + std::size_t count; + std::size_t version; + + private: + binding (const binding&); + binding& operator= (const binding&); + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_BINDING_HXX diff --git a/libodb-mysql/odb/mysql/buildfile b/libodb-mysql/odb/mysql/buildfile new file mode 100644 index 0000000..8fc2358 --- /dev/null +++ b/libodb-mysql/odb/mysql/buildfile @@ -0,0 +1,165 @@ +# file : odb/mysql/buildfile +# license : GNU GPL v2; see accompanying LICENSE file + +define cli: file +cli{*}: extension = cli + +import int_libs = libodb%lib{odb} + +import int_libs += ($client_lib == 'mysql' \ + ? libmysqlclient%lib{mysqlclient} \ + : libmariadb%lib{mariadb}) + +lib{odb-mysql}: {hxx ixx txx cxx}{* -version-build2} {hxx}{version-build2} \ + details/{hxx ixx txx cxx}{* -options} \ + details/build2/{h}{*} \ + $int_libs + +# Include the generated version header into the distribution (so that we don't +# pick up an installed one) and don't remove it when cleaning in src (so that +# clean results in a state identical to distributed). +# +hxx{version-build2}: in{version-build2} $src_root/manifest +hxx{version-build2}: +{ + dist = true + clean = ($src_root != $out_root) +} + +# Build options. +# +cxx.poptions =+ "-I$out_root" "-I$src_root" -DLIBODB_MYSQL_BUILD2 + +if ($client_lib == 'mariadb') + cxx.poptions += -DLIBODB_MYSQL_MARIADB + +obja{*}: cxx.poptions += -DLIBODB_MYSQL_STATIC_BUILD +objs{*}: cxx.poptions += -DLIBODB_MYSQL_SHARED_BUILD + +# Export options. +# +lib{odb-mysql}: +{ + cxx.export.poptions = "-I$out_root" "-I$src_root" -DLIBODB_MYSQL_BUILD2 + cxx.export.libs = $int_libs +} + +if ($client_lib == 'mariadb') + lib{odb-mysql}: cxx.export.poptions += -DLIBODB_MYSQL_MARIADB + +liba{odb-mysql}: cxx.export.poptions += -DLIBODB_MYSQL_STATIC +libs{odb-mysql}: cxx.export.poptions += -DLIBODB_MYSQL_SHARED + +# For pre-releases use the complete version to make sure they cannot be used +# in place of another pre-release or the final version. See the version module +# for details on the version.* variable values. +# +if $version.pre_release + lib{odb-mysql}: bin.lib.version = @"-$version.project_id" +else + lib{odb-mysql}: bin.lib.version = @"-$version.major.$version.minor" + +develop = $config.libodb_mysql.develop + +## Consumption build ($develop == false). +# + +# Use pregenerated versions in the consumption build. +# +lib{odb-mysql}: details/pregenerated/{hxx ixx cxx}{**}: include = (!$develop) + +if! $develop + cxx.poptions =+ "-I($src_base/details/pregenerated)" # Note: must come first. + +# Don't install pregenerated headers since they are only used internally in +# the database implementation (also below). +# +details/pregenerated/{hxx ixx}{*}: install = false + +# Distribute pregenerated versions only in the consumption build. +# +details/pregenerated/{hxx ixx cxx}{*}: dist = (!$develop) + +# +## + + +## Development build ($develop == true). +# + +lib{odb-mysql}: details/{hxx ixx cxx}{options}: include = $develop + +if $develop + import! [metadata] cli = cli%exe{cli} + +# In the development build distribute regenerated {hxx ixx cxx}{options}, +# remapping their locations to the paths of the pregenerated versions (which +# are only distributed in the consumption build; see above). This way we make +# sure that the distributed files are always up-to-date. +# +<details/{hxx ixx cxx}{options}>: details/cli{options} $cli +{ + install = false + dist = ($develop ? pregenerated/odb/mysql/details/ : false) + + # Symlink the generated code in src for convenience of development. + # + backlink = true +} +% +if $develop +{{ + options = --include-with-brackets --include-prefix odb/mysql/details \ + --guard-prefix LIBODB_MYSQL_DETAILS --generate-file-scanner \ + --cli-namespace odb::mysql::details::cli --long-usage \ + --generate-specifier --no-combined-flags + + $cli $options -o $out_base/details/ $path($<[0]) + + # If the result differs from the pregenerated version, copy it over. + # + d = [dir_path] $src_base/details/pregenerated/odb/mysql/details/ + + if diff $d/options.hxx $path($>[0]) >- && \ + diff $d/options.ixx $path($>[1]) >- && \ + diff $d/options.cxx $path($>[2]) >- + exit + end + + cp $path($>[0]) $d/options.hxx + cp $path($>[1]) $d/options.ixx + cp $path($>[2]) $d/options.cxx +}} + +# Install into the odb/mysql/ subdirectory of, say, /usr/include/ +# recreating subdirectories. +# +install_include = [dir_path] include/odb/mysql/ + +{hxx ixx txx}{*}: +{ + install = $install_include + install.subdirs = true +} + +# We want these to be picked up whether LIBODB_MYSQL_BUILD2 is defined or not. +# +hxx{version}@./: install = false +hxx{version-build2}: install = $install_include/version.hxx +hxx{version-build2-stub}@./: install = $install_include/version-build2.hxx + +details/build2/ +{ + h{*}: install = false + + if ($cxx.target.system == 'win32-msvc') + { + h{config-vc}@./: install = $install_include/details/ + h{config-vc-stub}@./: install = $install_include/details/build2/config-vc.h + } + else + { + h{config}@./: install = $install_include/details/ + h{config-stub}@./: install = $install_include/details/build2/config.h + } +} diff --git a/libodb-mysql/odb/mysql/connection-factory.cxx b/libodb-mysql/odb/mysql/connection-factory.cxx new file mode 100644 index 0000000..d53a4f4 --- /dev/null +++ b/libodb-mysql/odb/mysql/connection-factory.cxx @@ -0,0 +1,301 @@ +// file : odb/mysql/connection-factory.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/details/config.hxx> // ODB_THREADS_* +#include <odb/mysql/details/config.hxx> // LIBODB_MYSQL_THR_KEY_VISIBLE + +#if defined(ODB_THREADS_POSIX) && defined(LIBODB_MYSQL_THR_KEY_VISIBLE) +# include <pthread.h> +#endif + +#include <cstdlib> // abort + +#include <odb/details/tls.hxx> +#include <odb/details/lock.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/connection-factory.hxx> +#include <odb/mysql/exceptions.hxx> + +// This key is in the mysql client library. We use it to resolve the +// following problem: Some pthread implementations zero-out slots that +// don't have destructors during thread termination. As a result, when +// our destructor gets called and we call mysql_thread_end(), the thread- +// specific slot used by MySQL may have been reset to 0 and as a result +// MySQL thinks the data has been freed. +// +// To work around this problem we are going to cache the MySQL's slot +// value and if, during destruction, we see that it is 0, we will restore +// the original value before calling mysql_thread_end(). This will work +// fine for as long as the following conditions are met: +// +// 1. MySQL doesn't use the destructor itself. +// 2. Nobody else tried to call mysql_thread_end() before us. +// +// Note: in 5.7 the key has been made static and is no longer accessible. +// +#if defined(ODB_THREADS_POSIX) && defined(LIBODB_MYSQL_THR_KEY_VISIBLE) +extern pthread_key_t THR_KEY_mysys; +#endif + +using namespace std; + +namespace odb +{ + using namespace details; + + namespace mysql + { + namespace + { + static bool main_thread_init_; + + struct mysql_thread_init + { +#ifndef ODB_THREADS_NONE + mysql_thread_init () + : init_ (false) + { + if (!main_thread_init_) + { + if (::mysql_thread_init ()) + { + throw database_exception ( + CR_UNKNOWN_ERROR, "?????", "thread initialization failed"); + } + + init_ = true; + +#if defined(ODB_THREADS_POSIX) && defined(LIBODB_MYSQL_THR_KEY_VISIBLE) + value_ = pthread_getspecific (THR_KEY_mysys); +#endif + } + } + + ~mysql_thread_init () + { + if (init_) + { +#if defined(ODB_THREADS_POSIX) && defined(LIBODB_MYSQL_THR_KEY_VISIBLE) + if (pthread_getspecific (THR_KEY_mysys) == 0) + pthread_setspecific (THR_KEY_mysys, value_); +#endif + mysql_thread_end (); + } + } + + private: + bool init_; +#if defined(ODB_THREADS_POSIX) && defined(LIBODB_MYSQL_THR_KEY_VISIBLE) + void* value_; +#endif +#endif // ODB_THREADS_NONE + }; + + static ODB_TLS_OBJECT (mysql_thread_init) mysql_thread_init_; + + struct mysql_process_init + { + mysql_process_init () + { + // Force allocation of our thread-specific key before THR_KEY_mysys + // in MySQL. This will (hopefully) get us the desired order of TLS + // destructor calls (i.e., our destructor before zeroing-out the + // THR_KEY_mysys value). This is pretty much the only way (except + // maybe guessing the THR_KEY_mysys value) to get clean thread + // termination if THR_KEY_mysys symbol is hidden, as is the case + // in the Fedora build of libmysqlclient. See also the comment + // at the beginning of this file. + // + main_thread_init_ = true; + tls_get (mysql_thread_init_); + main_thread_init_ = false; + + if (mysql_library_init (0 ,0, 0)) + abort (); + } + + ~mysql_process_init () + { + mysql_library_end (); + + // Finalize the main thread now in case TLS destruction + // doesn't happen for the main thread. + // + tls_free (mysql_thread_init_); + } + }; + + static mysql_process_init mysql_process_init_; + } + + // new_connection_factory + // + connection_ptr new_connection_factory:: + connect () + { + tls_get (mysql_thread_init_); + + return connection_ptr (new (shared) connection (*this)); + } + + // connection_pool_factory + // + connection_pool_factory::pooled_connection_ptr connection_pool_factory:: + create () + { + return pooled_connection_ptr (new (shared) pooled_connection (*this)); + } + + connection_pool_factory:: + ~connection_pool_factory () + { + // Wait for all the connections currently in use to return to + // the pool. + // + lock l (mutex_); + while (in_use_ != 0) + { + waiters_++; + cond_.wait (l); + waiters_--; + } + } + + connection_ptr connection_pool_factory:: + connect () + { + tls_get (mysql_thread_init_); + + // The outer loop checks whether the connection we were + // given is still valid. + // + while (true) + { + pooled_connection_ptr c; + + lock l (mutex_); + + // The inner loop tries to find a free connection. + // + while (true) + { + // See if we have a spare connection. + // + if (connections_.size () != 0) + { + c = connections_.back (); + connections_.pop_back (); + + c->callback_ = &c->cb_; + in_use_++; + break; + } + + // See if we can create a new one. + // + if(max_ == 0 || in_use_ < max_) + { + // For new connections we don't need to ping so we + // can return immediately. + // + c = create (); + c->callback_ = &c->cb_; + in_use_++; + return c; + } + + // Wait until someone releases a connection. + // + waiters_++; + cond_.wait (l); + waiters_--; + } + + l.unlock (); + + if (!ping_ || c->ping ()) + return c; + } + + return pooled_connection_ptr (); // Never reached. + } + + void connection_pool_factory:: + database (database_type& db) + { + tls_get (mysql_thread_init_); + + bool first (db_ == 0); + + connection_factory::database (db); + + if (!first) + return; + + if (min_ > 0) + { + connections_.reserve (min_); + + for(size_t i (0); i < min_; ++i) + connections_.push_back (create ()); + } + } + + bool connection_pool_factory:: + release (pooled_connection* c) + { + c->clear (); + c->callback_ = 0; + + lock l (mutex_); + + // Determine if we need to keep or free this connection. + // + bool keep (!c->failed () && + (waiters_ != 0 || + min_ == 0 || + (connections_.size () + in_use_ <= min_))); + + in_use_--; + + if (keep) + { + connections_.push_back (pooled_connection_ptr (inc_ref (c))); + connections_.back ()->recycle (); + } + + if (waiters_ != 0) + cond_.signal (); + + return !keep; + } + + // + // connection_pool_factory::pooled_connection + // + + connection_pool_factory::pooled_connection:: + pooled_connection (connection_pool_factory& f) + : connection (f) + { + cb_.arg = this; + cb_.zero_counter = &zero_counter; + } + + connection_pool_factory::pooled_connection:: + pooled_connection (connection_pool_factory& f, MYSQL* handle) + : connection (f, handle) + { + cb_.arg = this; + cb_.zero_counter = &zero_counter; + } + + bool connection_pool_factory::pooled_connection:: + zero_counter (void* arg) + { + pooled_connection* c (static_cast<pooled_connection*> (arg)); + return static_cast<connection_pool_factory&> (c->factory_).release (c); + } + } +} diff --git a/libodb-mysql/odb/mysql/connection-factory.hxx b/libodb-mysql/odb/mysql/connection-factory.hxx new file mode 100644 index 0000000..12bd4d2 --- /dev/null +++ b/libodb-mysql/odb/mysql/connection-factory.hxx @@ -0,0 +1,140 @@ +// file : odb/mysql/connection-factory.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_CONNECTION_FACTORY_HXX +#define ODB_MYSQL_CONNECTION_FACTORY_HXX + +#include <odb/pre.hxx> + +#include <vector> +#include <cstddef> // std::size_t +#include <cassert> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/connection.hxx> + +#include <odb/details/mutex.hxx> +#include <odb/details/condition.hxx> +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT new_connection_factory: public connection_factory + { + public: + new_connection_factory () {} + + virtual connection_ptr + connect (); + + private: + new_connection_factory (const new_connection_factory&); + new_connection_factory& operator= (const new_connection_factory&); + }; + + class LIBODB_MYSQL_EXPORT connection_pool_factory: + public connection_factory + { + public: + // The max_connections argument specifies the maximum number of + // concurrent connections this pool will maintain. If this value + // is 0 then the pool will create a new connection every time all + // of the existing connections are in use. + // + // The min_connections argument specifies the minimum number of + // connections that should be maintained by the pool. If the + // number of connections maintained by the pool exceeds this + // number and there are no active waiters for a new connection, + // then the pool will release the excess connections. If this + // value is 0 then the pool will maintain all the connections + // that were ever created. + // + // The ping argument specifies whether to ping the connection to + // make sure it is still alive before returning it to the caller. + // + connection_pool_factory (std::size_t max_connections = 0, + std::size_t min_connections = 0, + bool ping = true) + : max_ (max_connections), + min_ (min_connections), + ping_ (ping), + in_use_ (0), + waiters_ (0), + cond_ (mutex_) + { + // max_connections == 0 means unlimited. + // + assert (max_connections == 0 || max_connections >= min_connections); + } + + virtual connection_ptr + connect (); + + virtual void + database (database_type&); + + virtual + ~connection_pool_factory (); + + private: + connection_pool_factory (const connection_pool_factory&); + connection_pool_factory& operator= (const connection_pool_factory&); + + protected: + class LIBODB_MYSQL_EXPORT pooled_connection: public connection + { + public: + pooled_connection (connection_pool_factory&); + pooled_connection (connection_pool_factory&, MYSQL*); + + private: + static bool + zero_counter (void*); + + private: + friend class connection_pool_factory; + + shared_base::refcount_callback cb_; + }; + + friend class pooled_connection; + + typedef details::shared_ptr<pooled_connection> pooled_connection_ptr; + typedef std::vector<pooled_connection_ptr> connections; + + // This function is called whenever the pool needs to create a new + // connection. + // + virtual pooled_connection_ptr + create (); + + protected: + // Return true if the connection should be deleted, false otherwise. + // + bool + release (pooled_connection*); + + protected: + const std::size_t max_; + const std::size_t min_; + const bool ping_; + + std::size_t in_use_; // Number of connections currently in use. + std::size_t waiters_; // Number of threads waiting for a connection. + + connections connections_; + + details::mutex mutex_; + details::condition cond_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_CONNECTION_FACTORY_HXX diff --git a/libodb-mysql/odb/mysql/connection.cxx b/libodb-mysql/odb/mysql/connection.cxx new file mode 100644 index 0000000..96baf3e --- /dev/null +++ b/libodb-mysql/odb/mysql/connection.cxx @@ -0,0 +1,218 @@ +// file : odb/mysql/connection.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <new> // std::bad_alloc +#include <string> + +#include <odb/mysql/database.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/transaction.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/error.hxx> +#include <odb/mysql/exceptions.hxx> +#include <odb/mysql/statement-cache.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + connection:: + connection (connection_factory& cf) + : odb::connection (cf), failed_ (false), active_ (0) + { + if (mysql_init (&mysql_) == 0) + throw bad_alloc (); + + handle_.reset (&mysql_); + + database_type& db (database ()); + + if (*db.charset () != '\0') + // Can only fail if we pass an unknown option. + // + mysql_options (handle_, MYSQL_SET_CHARSET_NAME, db.charset ()); + + // Force the CLIENT_FOUND_ROWS flag so that UPDATE returns the + // number of found rows, not the number of changed rows. This + // is necessary to distinguish between the object-not-persistent + // and nothing-changed conditions. + // + if (mysql_real_connect (handle_, + db.host (), + db.user (), + db.password (), + db.db (), + db.port (), + db.socket (), + db.client_flags () | CLIENT_FOUND_ROWS) == 0) + { + // We cannot use translate_error() here since there is no connection + // yet. + // + unsigned int e (mysql_errno (handle_)); + + if (e == CR_OUT_OF_MEMORY) + throw bad_alloc (); + + throw database_exception ( + e, mysql_sqlstate (handle_), mysql_error (handle_)); + } + + // Do this after we have established the connection. + // + statement_cache_.reset (new statement_cache_type (*this)); + } + + connection:: + connection (connection_factory& cf, MYSQL* handle) + : odb::connection (cf), + failed_ (false), + handle_ (handle), + active_ (0), + statement_cache_ (new statement_cache_type (*this)) + { + } + + connection:: + ~connection () + { + active_ = 0; + + // Destroy prepared query statements before freeing the connections. + // + recycle (); + clear_prepared_map (); + + if (stmt_handles_.size () > 0) + free_stmt_handles (); + } + + transaction_impl* connection:: + begin () + { + return new transaction_impl (connection_ptr (inc_ref (this))); + } + + unsigned long long connection:: + execute (const char* s, size_t n) + { + clear (); + + { + odb::tracer* t; + if ((t = transaction_tracer ()) || + (t = tracer ()) || + (t = database ().tracer ())) + { + string str (s, n); + t->execute (*this, str.c_str ()); + } + } + + if (mysql_real_query (handle_, s, static_cast<unsigned long> (n))) + translate_error (*this); + + // Get the affected row count, if any. If the statement has a result + // set (e.g., SELECT), we first need to call mysql_store_result(). + // + unsigned long long r (0); + + if (mysql_field_count (handle_) == 0) + r = static_cast<unsigned long long> (mysql_affected_rows (handle_)); + else + { + if (MYSQL_RES* rs = mysql_store_result (handle_)) + { + r = static_cast<unsigned long long> (mysql_num_rows (rs)); + mysql_free_result (rs); + } + else + translate_error (*this); + } + + return r; + } + + bool connection:: + ping () + { + if (failed ()) + return false; + + if (!mysql_ping (handle_)) + return true; + + switch (mysql_errno (handle_)) + { + case CR_SERVER_LOST: + case CR_SERVER_GONE_ERROR: + { + mark_failed (); + return false; + } + default: + { + translate_error (*this); + return false; // Never reached. + } + } + } + + void connection:: + clear_ () + { + active_->cancel (); // Should clear itself from active_. + } + + MYSQL_STMT* connection:: + alloc_stmt_handle () + { + MYSQL_STMT* stmt (mysql_stmt_init (handle_)); + + if (stmt == 0) + throw bad_alloc (); + + return stmt; + } + + void connection:: + free_stmt_handle (auto_handle<MYSQL_STMT>& stmt) + { + if (active_ == 0) + stmt.reset (); + else + { + stmt_handles_.push_back (stmt); // May throw. + stmt.release (); + } + } + + void connection:: + free_stmt_handles () + { + for (stmt_handles::iterator i (stmt_handles_.begin ()), + e (stmt_handles_.end ()); i != e; ++i) + { + mysql_stmt_close (*i); + } + + stmt_handles_.clear (); + } + + // connection_factory + // + connection_factory:: + ~connection_factory () + { + } + + void connection_factory:: + database (database_type& db) + { + odb::connection_factory::db_ = &db; + db_ = &db; + } + } +} diff --git a/libodb-mysql/odb/mysql/connection.hxx b/libodb-mysql/odb/mysql/connection.hxx new file mode 100644 index 0000000..31b24ed --- /dev/null +++ b/libodb-mysql/odb/mysql/connection.hxx @@ -0,0 +1,231 @@ +// file : odb/mysql/connection.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_CONNECTION_HXX +#define ODB_MYSQL_CONNECTION_HXX + +#include <odb/pre.hxx> + +#include <vector> + +#include <odb/connection.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/query.hxx> +#include <odb/mysql/tracer.hxx> +#include <odb/mysql/transaction-impl.hxx> +#include <odb/mysql/auto-handle.hxx> + +#include <odb/details/shared-ptr.hxx> +#include <odb/details/unique-ptr.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class statement_cache; + class connection_factory; + + class connection; + typedef details::shared_ptr<connection> connection_ptr; + + class LIBODB_MYSQL_EXPORT connection: public odb::connection + { + public: + typedef mysql::statement_cache statement_cache_type; + typedef mysql::database database_type; + + virtual + ~connection (); + + connection (connection_factory&); + connection (connection_factory&, MYSQL* handle); + + database_type& + database (); + + public: + virtual transaction_impl* + begin (); + + public: + using odb::connection::execute; + + virtual unsigned long long + execute (const char* statement, std::size_t length); + + // Query preparation. + // + public: + template <typename T> + prepared_query<T> + prepare_query (const char* name, const char*); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const std::string&); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const mysql::query_base&); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const odb::query_base&); + + // SQL statement tracing. + // + public: + typedef mysql::tracer tracer_type; + + void + tracer (tracer_type& t) + { + odb::connection::tracer (t); + } + + void + tracer (tracer_type* t) + { + odb::connection::tracer (t); + } + + using odb::connection::tracer; + + public: + bool + failed () const + { + return failed_; + } + + void + mark_failed () + { + failed_ = true; + } + + // Ping the server to make sure the connection is still alive. Return + // true if successful, mark the connection as failed and return false + // otherwise. This function can also throw database_exception. + // + bool + ping (); + + public: + MYSQL* + handle () + { + return handle_; + } + + statement_cache_type& + statement_cache () + { + return *statement_cache_; + } + + public: + statement* + active () + { + return active_; + } + + void + active (statement* s) + { + active_ = s; + + if (s == 0 && stmt_handles_.size () > 0) + free_stmt_handles (); + } + + // Cancel and clear the active statement, if any. + // + void + clear () + { + if (active_ != 0) + clear_ (); + } + + public: + MYSQL_STMT* + alloc_stmt_handle (); + + void + free_stmt_handle (auto_handle<MYSQL_STMT>&); + + private: + connection (const connection&); + connection& operator= (const connection&); + + private: + void + free_stmt_handles (); + + void + clear_ (); + + private: + friend class transaction_impl; // invalidate_results() + + private: + bool failed_; + + MYSQL mysql_; + auto_handle<MYSQL> handle_; + + statement* active_; + + // Keep statement_cache_ after handle_ so that it is destroyed before + // the connection is closed. + // + details::unique_ptr<statement_cache_type> statement_cache_; + + // List of "delayed" statement handles to be freed next time there + // is no active statement. + // + typedef std::vector<MYSQL_STMT*> stmt_handles; + stmt_handles stmt_handles_; + }; + + class LIBODB_MYSQL_EXPORT connection_factory: + public odb::connection_factory + { + public: + typedef mysql::database database_type; + + virtual void + database (database_type&); + + database_type& + database () {return *db_;} + + virtual connection_ptr + connect () = 0; + + virtual + ~connection_factory (); + + connection_factory (): db_ (0) {} + + // Needed to break the circular connection_factory-database dependency + // (odb::connection_factory has the odb::database member). + // + protected: + database_type* db_; + }; + } +} + +#include <odb/mysql/connection.ixx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_CONNECTION_HXX diff --git a/libodb-mysql/odb/mysql/connection.ixx b/libodb-mysql/odb/mysql/connection.ixx new file mode 100644 index 0000000..d2f09ac --- /dev/null +++ b/libodb-mysql/odb/mysql/connection.ixx @@ -0,0 +1,44 @@ +// file : odb/mysql/connection.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + inline database& connection:: + database () + { + return static_cast<connection_factory&> (factory_).database (); + } + + template <typename T> + inline prepared_query<T> connection:: + prepare_query (const char* n, const char* q) + { + return prepare_query<T> (n, query<T> (q)); + } + + template <typename T> + inline prepared_query<T> connection:: + prepare_query (const char* n, const std::string& q) + { + return prepare_query<T> (n, query<T> (q)); + } + + template <typename T> + inline prepared_query<T> connection:: + prepare_query (const char* n, const mysql::query_base& q) + { + return query_<T, id_mysql>::call (*this, n, q); + } + + template <typename T> + inline prepared_query<T> connection:: + prepare_query (const char* n, const odb::query_base& q) + { + // Translate to native query. + // + return prepare_query<T> (n, mysql::query_base (q)); + } + } +} diff --git a/libodb-mysql/odb/mysql/container-statements.hxx b/libodb-mysql/odb/mysql/container-statements.hxx new file mode 100644 index 0000000..48e769d --- /dev/null +++ b/libodb-mysql/odb/mysql/container-statements.hxx @@ -0,0 +1,360 @@ +// file : odb/mysql/container-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_CONTAINER_STATEMENTS_HXX +#define ODB_MYSQL_CONTAINER_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/schema-version.hxx> +#include <odb/traits.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/statement.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class connection; + + // Template argument is the generated abstract container traits type. + // That is, it doesn't need to provide column counts and statements. + // + template <typename T> + class container_statements + { + public: + typedef T traits; + + typedef typename traits::data_image_type data_image_type; + typedef typename traits::functions_type functions_type; + + typedef mysql::insert_statement insert_statement_type; + typedef mysql::select_statement select_statement_type; + typedef mysql::delete_statement delete_statement_type; + + typedef mysql::connection connection_type; + + container_statements (connection_type&, binding& id_binding); + + connection_type& + connection () + { + return conn_; + } + + // Functions. + // + functions_type& + functions () + { + return functions_; + } + + // Schema version. + // + const schema_version_migration& + version_migration () const {return *svm_;} + + void + version_migration (const schema_version_migration& svm) {svm_ = &svm;} + + // Id image binding (external). + // + const binding& + id_binding () + { + return id_binding_; + } + + // Data image. The image is split into the id (that comes as a + // binding) and index/key plus value which are in data_image_type. + // The select binding is a subset of the full binding (no id). + // + data_image_type& + data_image () + { + return data_image_; + } + + MYSQL_BIND* + data_bind () + { + return insert_image_binding_.bind; + } + + bool + data_binding_test_version () const + { + return data_id_binding_version_ != id_binding_.version || + data_image_version_ != data_image_.version || + insert_image_binding_.version == 0; + } + + void + data_binding_update_version () + { + data_id_binding_version_ = id_binding_.version; + data_image_version_ = data_image_.version; + insert_image_binding_.version++; + select_image_binding_.version++; + } + + my_bool* + select_image_truncated () + { + return select_image_truncated_; + } + + // + // Statements. + // + + insert_statement_type& + insert_statement () + { + if (insert_ == 0) + insert_.reset ( + new (details::shared) insert_statement_type ( + conn_, + insert_text_, + versioned_, // Process if versioned. + insert_image_binding_, + 0, + false)); + + return *insert_; + } + + select_statement_type& + select_statement () + { + if (select_ == 0) + select_.reset ( + new (details::shared) select_statement_type ( + conn_, + select_text_, + versioned_, // Process if versioned. + false, // Don't optimize. + id_binding_, + select_image_binding_, + false)); + + return *select_; + } + + delete_statement_type& + delete_statement () + { + if (delete_ == 0) + delete_.reset ( + new (details::shared) delete_statement_type ( + conn_, delete_text_, id_binding_, false)); + + return *delete_; + } + + private: + container_statements (const container_statements&); + container_statements& operator= (const container_statements&); + + protected: + connection_type& conn_; + binding& id_binding_; + + functions_type functions_; + + data_image_type data_image_; + std::size_t data_image_version_; + std::size_t data_id_binding_version_; + + binding insert_image_binding_; + + binding select_image_binding_; + my_bool* select_image_truncated_; + + const char* insert_text_; + const char* select_text_; + const char* delete_text_; + + bool versioned_; + const schema_version_migration* svm_; + + details::shared_ptr<insert_statement_type> insert_; + details::shared_ptr<select_statement_type> select_; + details::shared_ptr<delete_statement_type> delete_; + }; + + template <typename T> + class smart_container_statements: public container_statements<T> + { + public: + typedef T traits; + typedef typename traits::cond_image_type cond_image_type; + + typedef mysql::update_statement update_statement_type; + typedef mysql::delete_statement delete_statement_type; + + typedef mysql::connection connection_type; + + smart_container_statements (connection_type&, binding& id_binding); + + // Condition image. The image is split into the id (that comes as + // a binding) and index/key/value which is in cond_image_type. + // + cond_image_type& + cond_image () + { + return cond_image_; + } + + MYSQL_BIND* + cond_bind () + { + return cond_image_binding_.bind; + } + + bool + cond_binding_test_version () const + { + return cond_id_binding_version_ != this->id_binding_.version || + cond_image_version_ != cond_image_.version || + cond_image_binding_.version == 0; + } + + void + cond_binding_update_version () + { + cond_id_binding_version_ = this->id_binding_.version; + cond_image_version_ = cond_image_.version; + cond_image_binding_.version++; + } + + // Update image. The image is split as follows: value comes + // from the data image, id comes as binding, and index/key + // comes from the condition image. + // + MYSQL_BIND* + update_bind () + { + return update_image_binding_.bind; + } + + bool + update_binding_test_version () const + { + return update_id_binding_version_ != this->id_binding_.version || + update_cond_image_version_ != cond_image_.version || + update_data_image_version_ != this->data_image_.version || + update_image_binding_.version == 0; + } + + void + update_binding_update_version () + { + update_id_binding_version_ = this->id_binding_.version; + update_cond_image_version_ = cond_image_.version; + update_data_image_version_ = this->data_image_.version; + update_image_binding_.version++; + } + + // + // Statements. + // + + delete_statement_type& + delete_statement () + { + if (this->delete_ == 0) + this->delete_.reset ( + new (details::shared) delete_statement_type ( + this->conn_, + this->delete_text_, + this->cond_image_binding_, + false)); + + return *this->delete_; + } + + update_statement_type& + update_statement () + { + if (update_ == 0) + update_.reset ( + new (details::shared) update_statement_type ( + this->conn_, + update_text_, + this->versioned_, // Process if versioned. + update_image_binding_, + false)); + + return *update_; + } + + protected: + cond_image_type cond_image_; + std::size_t cond_image_version_; + std::size_t cond_id_binding_version_; + binding cond_image_binding_; + + std::size_t update_id_binding_version_; + std::size_t update_cond_image_version_; + std::size_t update_data_image_version_; + binding update_image_binding_; + + const char* update_text_; + + details::shared_ptr<update_statement_type> update_; + }; + + // Template argument is the generated concrete container traits type. + // + template <typename T> + class container_statements_impl: public T::statements_type + { + public: + typedef T traits; + typedef typename T::statements_type base; + typedef mysql::connection connection_type; + + container_statements_impl (connection_type&, binding&); + + private: + container_statements_impl (const container_statements_impl&); + container_statements_impl& operator= (const container_statements_impl&); + + private: + MYSQL_BIND data_image_bind_[traits::data_column_count]; + my_bool select_image_truncated_array_[traits::data_column_count - + traits::id_column_count]; + }; + + template <typename T> + class smart_container_statements_impl: public container_statements_impl<T> + { + public: + typedef T traits; + typedef mysql::connection connection_type; + + smart_container_statements_impl (connection_type&, binding&); + + private: + MYSQL_BIND cond_image_bind_[traits::cond_column_count]; + MYSQL_BIND update_image_bind_[traits::value_column_count + + traits::cond_column_count]; + }; + } +} + +#include <odb/mysql/container-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_CONTAINER_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/container-statements.txx b/libodb-mysql/odb/mysql/container-statements.txx new file mode 100644 index 0000000..55bc5fe --- /dev/null +++ b/libodb-mysql/odb/mysql/container-statements.txx @@ -0,0 +1,107 @@ +// file : odb/mysql/container-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstddef> // std::size_t +#include <cstring> // std::memset + +namespace odb +{ + namespace mysql + { + // container_statements + // + template <typename T> + container_statements<T>:: + container_statements (connection_type& conn, binding& id) + : conn_ (conn), + id_binding_ (id), + functions_ (this), + insert_image_binding_ (0, 0), // Initialized by impl. + select_image_binding_ (0, 0), // Initialized by impl. + svm_ (0) + { + functions_.insert_ = &traits::insert; + functions_.select_ = &traits::select; + functions_.delete__ = &traits::delete_; + + data_image_.version = 0; + data_image_version_ = 0; + data_id_binding_version_ = 0; + } + + // smart_container_statements + // + template <typename T> + smart_container_statements<T>:: + smart_container_statements (connection_type& conn, binding& id) + : container_statements<T> (conn, id), + cond_image_binding_ (0, 0), // Initialized by impl. + update_image_binding_ (0, 0) // Initialized by impl. + { + this->functions_.update_ = &traits::update; + + cond_image_.version = 0; + cond_image_version_ = 0; + cond_id_binding_version_ = 0; + + update_id_binding_version_ = 0; + update_cond_image_version_ = 0; + update_data_image_version_ = 0; + } + + // container_statements_impl + // + template <typename T> + container_statements_impl<T>:: + container_statements_impl (connection_type& conn, binding& id) + : base (conn, id) + { + this->select_image_truncated_ = select_image_truncated_array_; + + this->insert_image_binding_.bind = data_image_bind_; + this->insert_image_binding_.count = traits::data_column_count; + + this->select_image_binding_.bind = data_image_bind_ + + traits::id_column_count; + this->select_image_binding_.count = traits::data_column_count - + traits::id_column_count; + + std::memset (data_image_bind_, 0, sizeof (data_image_bind_)); + std::memset (select_image_truncated_array_, + 0, + sizeof (select_image_truncated_array_)); + + for (std::size_t i (0); + i < traits::data_column_count - traits::id_column_count; + ++i) + data_image_bind_[i + traits::id_column_count].error = + select_image_truncated_array_ + i; + + this->insert_text_ = traits::insert_statement; + this->select_text_ = traits::select_statement; + this->delete_text_ = traits::delete_statement; + + this->versioned_ = traits::versioned; + } + + // smart_container_statements_impl + // + template <typename T> + smart_container_statements_impl<T>:: + smart_container_statements_impl (connection_type& conn, binding& id) + : container_statements_impl<T> (conn, id) + { + this->cond_image_binding_.bind = cond_image_bind_; + this->cond_image_binding_.count = traits::cond_column_count; + + this->update_image_binding_.bind = update_image_bind_; + this->update_image_binding_.count = traits::value_column_count + + traits::cond_column_count; + + std::memset (cond_image_bind_, 0, sizeof (cond_image_bind_)); + std::memset (update_image_bind_, 0, sizeof (update_image_bind_)); + + this->update_text_ = traits::update_statement; + } + } +} diff --git a/libodb-mysql/odb/mysql/database.cxx b/libodb-mysql/odb/mysql/database.cxx new file mode 100644 index 0000000..6c0f1d6 --- /dev/null +++ b/libodb-mysql/odb/mysql/database.cxx @@ -0,0 +1,357 @@ +// file : odb/mysql/database.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <sstream> +#include <cstring> // std::memset + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/database.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/connection-factory.hxx> +#include <odb/mysql/transaction.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/exceptions.hxx> + +#include <odb/mysql/details/options.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + using odb::details::transfer_ptr; + + database:: + ~database () + { + } + + database:: + database (const char* user, + const char* passwd, + const char* db, + const char* host, + unsigned int port, + const char* socket, + const char* charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + user_ (user ? user : ""), + passwd_str_ (passwd ? passwd : ""), + passwd_ (passwd ? passwd_str_.c_str () : 0), + db_ (db ? db : ""), + host_ (host ? host : ""), + port_ (port), + socket_str_ (socket ? socket : ""), + socket_ (socket ? socket_str_.c_str () : 0), + charset_ (charset == 0 ? "" : charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + database:: + database (const string& user, + const string& passwd, + const string& db, + const string& host, + unsigned int port, + const string* socket, + const string& charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + user_ (user), + passwd_str_ (passwd), + passwd_ (passwd_str_.c_str ()), + db_ (db), + host_ (host), + port_ (port), + socket_str_ (socket ? *socket : ""), + socket_ (socket ? socket_str_.c_str () : 0), + charset_ (charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + database:: + database (const string& user, + const string* passwd, + const string& db, + const string& host, + unsigned int port, + const string* socket, + const string& charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + user_ (user), + passwd_str_ (passwd ? *passwd : ""), + passwd_ (passwd ? passwd_str_.c_str () : 0), + db_ (db), + host_ (host), + port_ (port), + socket_str_ (socket ? *socket : ""), + socket_ (socket ? socket_str_.c_str () : 0), + charset_ (charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + database:: + database (const string& user, + const string& passwd, + const string& db, + const string& host, + unsigned int port, + const string& socket, + const string& charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + user_ (user), + passwd_str_ (passwd), + passwd_ (passwd_str_.c_str ()), + db_ (db), + host_ (host), + port_ (port), + socket_str_ (socket), + socket_ (socket_str_.c_str ()), + charset_ (charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + database:: + database (const string& user, + const string* passwd, + const string& db, + const string& host, + unsigned int port, + const string& socket, + const string& charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + user_ (user), + passwd_str_ (passwd ? *passwd : ""), + passwd_ (passwd ? passwd_str_.c_str () : 0), + db_ (db), + host_ (host), + port_ (port), + socket_str_ (socket), + socket_ (socket_str_.c_str ()), + charset_ (charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + database:: + database (int& argc, + char* argv[], + bool erase, + const string& charset, + unsigned long client_flags, + transfer_ptr<connection_factory> factory) + : odb::database (id_mysql), + passwd_ (0), + socket_ (0), + charset_ (charset), + client_flags_ (client_flags), + factory_ (factory.transfer ()) + { + using namespace details; + + try + { + cli::argv_file_scanner scan (argc, argv, "--options-file", erase); + options ops (scan, cli::unknown_mode::skip, cli::unknown_mode::skip); + + user_ = ops.user (); + + if (ops.password_specified ()) + { + passwd_str_ = ops.password (); + passwd_ = passwd_str_.c_str (); + } + + db_ = ops.database (); + host_ = ops.host (); + port_ = ops.port (); + + if (ops.socket_specified ()) + { + socket_str_ = ops.socket (); + socket_ = socket_str_.c_str (); + } + } + catch (const cli::exception& e) + { + ostringstream ostr; + ostr << e; + throw cli_exception (ostr.str ()); + } + + if (!factory_) + factory_.reset (new connection_pool_factory ()); + + factory_->database (*this); + } + + void database:: + print_usage (ostream& os) + { + details::options::print_usage (os); + } + + transaction_impl* database:: + begin () + { + return new transaction_impl (*this); + } + + odb::connection* database:: + connection_ () + { + connection_ptr c (factory_->connect ()); + return c.release (); + } + + const database::schema_version_info& database:: + load_schema_version (const string& name) const + { + schema_version_info& svi (schema_version_map_[name]); + + // Construct the SELECT statement text. + // + string text ("SELECT `version`, `migration` FROM "); + + if (!svi.version_table.empty ()) + text += svi.version_table; // Already quoted. + else if (!schema_version_table_.empty ()) + text += schema_version_table_; // Already quoted. + else + text += "`schema_version`"; + + text += " WHERE `name` = ?"; + + // Bind parameters and results. + // + unsigned long psize[1] = {static_cast<unsigned long> (name.size ())}; + my_bool pnull[1] = {0}; + MYSQL_BIND pbind[1]; + binding param (pbind, 1); + + memset (pbind, 0, sizeof (pbind)); + + pbind[0].buffer_type = MYSQL_TYPE_STRING; + pbind[0].buffer = const_cast<char*> (name.c_str ()); + pbind[0].buffer_length = psize[0]; + pbind[0].length = &psize[0]; + pbind[0].is_null = &pnull[0]; + + param.version++; + + signed char migration; + my_bool rnull[2]; + MYSQL_BIND rbind[2]; + binding result (rbind, 2); + + memset (rbind, 0, sizeof (rbind)); + + rbind[0].buffer_type = MYSQL_TYPE_LONGLONG; + rbind[0].is_unsigned = 1; + rbind[0].buffer = &svi.version; + rbind[0].is_null = &rnull[0]; + + rbind[1].buffer_type = MYSQL_TYPE_TINY; + rbind[1].is_unsigned = 0; + rbind[1].buffer = &migration; + rbind[1].is_null = &rnull[1]; + + result.version++; + + // If we are not in transaction, MySQL will use an implicit one + // (i.e., autocommit mode), which suits us just fine. + // + connection_ptr cp; + if (!transaction::has_current ()) + cp = factory_->connect (); + + mysql::connection& c ( + cp != 0 + ? *cp + : transaction::current ().connection (const_cast<database&> (*this))); + + try + { + select_statement st (c, + text.c_str (), + false, // Don't process. + false, // Don't optimize. + param, + result, + false); + st.execute (); + auto_result ar (st); + + switch (st.fetch ()) + { + case select_statement::success: + { + svi.migration = migration != 0; + assert (st.fetch () == select_statement::no_data); + break; + } + case select_statement::no_data: + { + svi.version = 0; // No schema. + break; + } + case select_statement::truncated: + { + assert (false); + break; + } + } + } + catch (const database_exception& e) + { + // Detect the case where there is no version table. + // + if (e.error () == ER_NO_SUCH_TABLE) + svi.version = 0; // No schema. + else + throw; + } + + return svi; + } + } +} diff --git a/libodb-mysql/odb/mysql/database.hxx b/libodb-mysql/odb/mysql/database.hxx new file mode 100644 index 0000000..e73b7c9 --- /dev/null +++ b/libodb-mysql/odb/mysql/database.hxx @@ -0,0 +1,540 @@ +// file : odb/mysql/database.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_DATABASE_HXX +#define ODB_MYSQL_DATABASE_HXX + +#include <odb/pre.hxx> + +#include <string> +#include <iosfwd> // std::ostream + +#include <odb/database.hxx> +#include <odb/details/config.hxx> // ODB_CXX11 +#include <odb/details/unique-ptr.hxx> +#include <odb/details/transfer-ptr.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/query.hxx> +#include <odb/mysql/tracer.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/connection-factory.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class transaction_impl; + + class LIBODB_MYSQL_EXPORT database: public odb::database + { + public: + // In MySQL, NULL and empty string are treated as the same value + // for all the arguments except passwd and socket. + // + database (const char* user, + const char* passwd, + const char* db, + const char* host = 0, + unsigned int port = 0, + const char* socket = 0, + const char* charset = 0, + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + database (const std::string& user, + const std::string& passwd, + const std::string& db, + const std::string& host = "", + unsigned int port = 0, + const std::string* socket = 0, + const std::string& charset = "", + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + database (const std::string& user, + const std::string* passwd, + const std::string& db, + const std::string& host = "", + unsigned int port = 0, + const std::string* socket = 0, + const std::string& charset = "", + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + database (const std::string& user, + const std::string& passwd, + const std::string& db, + const std::string& host, + unsigned int port, + const std::string& socket, + const std::string& charset = "", + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + database (const std::string& user, + const std::string* passwd, + const std::string& db, + const std::string& host, + unsigned int port, + const std::string& socket, + const std::string& charset = "", + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + // Extract the database parameters from the command line. The + // following options are recognized: + // + // --user + // --password + // --database + // --host + // --port + // --socket + // --options-file + // + // For more information, see the output of the print_usage() function + // below. If erase is true, the above options are removed from the + // argv array and the argc count is updated accordingly. This + // constructor may throw the cli_exception exception. + // + database (int& argc, + char* argv[], + bool erase = false, + const std::string& charset = "", + unsigned long client_flags = 0, + details::transfer_ptr<connection_factory> = + details::transfer_ptr<connection_factory> ()); + + // Move-constructible but not move-assignable. + // + // Note: noexcept is not specified since odb::database(odb::database&&) + // can throw. + // +#ifdef ODB_CXX11 + database (database&&); +#endif + + static void + print_usage (std::ostream&); + + public: + const char* + user () const + { + return user_.c_str (); + } + + const char* + password () const + { + return passwd_; + } + + const char* + db () const + { + return db_.c_str (); + } + + const char* + host () const + { + return host_.c_str (); + } + + unsigned int + port () const + { + return port_; + } + + const char* + socket () const + { + return socket_; + } + + const char* + charset () const + { + return charset_.c_str (); + } + + unsigned long + client_flags () const + { + return client_flags_; + } + + // Object persistence API. + // + public: + + // Make the object persistent. + // + template <typename T> + typename object_traits<T>::id_type + persist (T& object); + + template <typename T> + typename object_traits<T>::id_type + persist (const T& object); + + template <typename T> + typename object_traits<T>::id_type + persist (T* obj_ptr); + + template <typename T, template <typename> class P> + typename object_traits<T>::id_type + persist (const P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + typename object_traits<T>::id_type + persist (const P<T, A1>& obj_ptr); + + template <typename T, template <typename> class P> + typename object_traits<T>::id_type + persist (P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + typename object_traits<T>::id_type + persist (P<T, A1>& obj_ptr); + + template <typename T> + typename object_traits<T>::id_type + persist (const typename object_traits<T>::pointer_type& obj_ptr); + + // Load an object. Throw object_not_persistent if not found. + // + template <typename T> + typename object_traits<T>::pointer_type + load (const typename object_traits<T>::id_type& id); + + template <typename T> + void + load (const typename object_traits<T>::id_type& id, T& object); + + // Load (or reload, if it is already loaded) a section of an object. + // + template <typename T> + void + load (T& object, section&); + + // Reload an object. + // + template <typename T> + void + reload (T& object); + + template <typename T> + void + reload (T* obj_ptr); + + template <typename T, template <typename> class P> + void + reload (const P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + reload (const P<T, A1>& obj_ptr); + + template <typename T, template <typename> class P> + void + reload (P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + reload (P<T, A1>& obj_ptr); + + template <typename T> + void + reload (const typename object_traits<T>::pointer_type& obj_ptr); + + // Loan an object if found. Return NULL/false if not found. + // + template <typename T> + typename object_traits<T>::pointer_type + find (const typename object_traits<T>::id_type& id); + + template <typename T> + bool + find (const typename object_traits<T>::id_type& id, T& object); + + // Update the state of a modified objects. + // + template <typename T> + void + update (T& object); + + template <typename T> + void + update (T* obj_ptr); + + template <typename T, template <typename> class P> + void + update (const P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + update (const P<T, A1>& obj_ptr); + + template <typename T, template <typename> class P> + void + update (P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + update (P<T, A1>& obj_ptr); + + template <typename T> + void + update (const typename object_traits<T>::pointer_type& obj_ptr); + + // Update a section of an object. Throws the section_not_loaded + // exception if the section is not loaded. Note also that this + // function does not clear the changed flag if it is set. + // + template <typename T> + void + update (const T& object, const section&); + + // Make the object transient. Throw object_not_persistent if not + // found. + // + template <typename T> + void + erase (const typename object_traits<T>::id_type& id); + + template <typename T> + void + erase (T& object); + + template <typename T> + void + erase (T* obj_ptr); + + template <typename T, template <typename> class P> + void + erase (const P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + erase (const P<T, A1>& obj_ptr); + + template <typename T, template <typename> class P> + void + erase (P<T>& obj_ptr); + + template <typename T, typename A1, template <typename, typename> class P> + void + erase (P<T, A1>& obj_ptr); + + template <typename T> + void + erase (const typename object_traits<T>::pointer_type& obj_ptr); + + // Erase multiple objects matching a query predicate. + // + template <typename T> + unsigned long long + erase_query (); + + template <typename T> + unsigned long long + erase_query (const char*); + + template <typename T> + unsigned long long + erase_query (const std::string&); + + template <typename T> + unsigned long long + erase_query (const mysql::query_base&); + + template <typename T> + unsigned long long + erase_query (const odb::query_base&); + + // Query API. + // + template <typename T> + result<T> + query (bool cache = true); + + template <typename T> + result<T> + query (const char*, bool cache = true); + + template <typename T> + result<T> + query (const std::string&, bool cache = true); + + template <typename T> + result<T> + query (const mysql::query_base&, bool cache = true); + + template <typename T> + result<T> + query (const odb::query_base&, bool cache = true); + + // Query one API. + // + template <typename T> + typename result<T>::pointer_type + query_one (); + + template <typename T> + bool + query_one (T& object); + + template <typename T> + T + query_value (); + + template <typename T> + typename result<T>::pointer_type + query_one (const char*); + + template <typename T> + bool + query_one (const char*, T& object); + + template <typename T> + T + query_value (const char*); + + template <typename T> + typename result<T>::pointer_type + query_one (const std::string&); + + template <typename T> + bool + query_one (const std::string&, T& object); + + template <typename T> + T + query_value (const std::string&); + + template <typename T> + typename result<T>::pointer_type + query_one (const mysql::query_base&); + + template <typename T> + bool + query_one (const mysql::query_base&, T& object); + + template <typename T> + T + query_value (const mysql::query_base&); + + template <typename T> + typename result<T>::pointer_type + query_one (const odb::query_base&); + + template <typename T> + bool + query_one (const odb::query_base&, T& object); + + template <typename T> + T + query_value (const odb::query_base&); + + // Query preparation. + // + template <typename T> + prepared_query<T> + prepare_query (const char* name, const char*); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const std::string&); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const mysql::query_base&); + + template <typename T> + prepared_query<T> + prepare_query (const char* name, const odb::query_base&); + + // Transactions. + // + public: + virtual transaction_impl* + begin (); + + public: + connection_ptr + connection (); + + // SQL statement tracing. + // + public: + typedef mysql::tracer tracer_type; + + void + tracer (tracer_type& t) + { + odb::database::tracer (t); + } + + void + tracer (tracer_type* t) + { + odb::database::tracer (t); + } + + using odb::database::tracer; + + // Database schema version. + // + protected: + virtual const schema_version_info& + load_schema_version (const std::string& schema_name) const; + + public: + // Database id constant (useful for meta-programming). + // + static const odb::database_id database_id = id_mysql; + + public: + virtual + ~database (); + + protected: + virtual odb::connection* + connection_ (); + + private: + // Note: remember to update move ctor if adding any new members. + // + std::string user_; + std::string passwd_str_; + const char* passwd_; + std::string db_; + std::string host_; + unsigned int port_; + std::string socket_str_; + const char* socket_; + std::string charset_; + unsigned long client_flags_; + details::unique_ptr<connection_factory> factory_; + }; + } +} + +#include <odb/mysql/database.ixx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_DATABASE_HXX diff --git a/libodb-mysql/odb/mysql/database.ixx b/libodb-mysql/odb/mysql/database.ixx new file mode 100644 index 0000000..f9b62dd --- /dev/null +++ b/libodb-mysql/odb/mysql/database.ixx @@ -0,0 +1,617 @@ +// file : odb/mysql/database.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <utility> // move() + +#include <odb/mysql/transaction.hxx> + +namespace odb +{ + namespace mysql + { +#ifdef ODB_CXX11 + inline database:: + database (database&& db) // Has to be inline. + : odb::database (std::move (db)), + user_ (std::move (db.user_)), + passwd_str_ (std::move (db.passwd_str_)), + passwd_ (db.passwd_ != 0 ? passwd_str_.c_str () : 0), + db_ (std::move (db.db_)), + host_ (std::move (db.host_)), + port_ (db.port_), + socket_str_ (std::move (db.socket_str_)), + socket_ (db.socket_ != 0 ? socket_str_.c_str () : 0), + charset_ (std::move (db.charset_)), + client_flags_ (db.client_flags_), + factory_ (std::move (db.factory_)) + { + factory_->database (*this); // New database instance. + } +#endif + + inline connection_ptr database:: + connection () + { + // Go through the virtual connection_() function instead of + // directly to allow overriding. + // + return connection_ptr ( + static_cast<mysql::connection*> (connection_ ())); + } + + template <typename T> + inline typename object_traits<T>::id_type database:: + persist (T& obj) + { + return persist_<T, id_mysql> (obj); + } + + template <typename T> + inline typename object_traits<T>::id_type database:: + persist (const T& obj) + { + return persist_<const T, id_mysql> (obj); + } + + template <typename T> + inline typename object_traits<T>::id_type database:: + persist (T* p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + return persist_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline typename object_traits<T>::id_type database:: + persist (const P<T>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + return persist_<T, id_mysql> (pobj); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline typename object_traits<T>::id_type database:: + persist (const P<T, A1>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + return persist_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline typename object_traits<T>::id_type database:: + persist (P<T>& p) + { + const P<T>& cr (p); + return persist<T, P> (cr); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline typename object_traits<T>::id_type database:: + persist (P<T, A1>& p) + { + const P<T, A1>& cr (p); + return persist<T, A1, P> (cr); + } + + template <typename T> + inline typename object_traits<T>::id_type database:: + persist (const typename object_traits<T>::pointer_type& pobj) + { + return persist_<T, id_mysql> (pobj); + } + + template <typename T> + inline typename object_traits<T>::pointer_type database:: + load (const typename object_traits<T>::id_type& id) + { + return load_<T, id_mysql> (id); + } + + template <typename T> + inline void database:: + load (const typename object_traits<T>::id_type& id, T& obj) + { + return load_<T, id_mysql> (id, obj); + } + + template <typename T> + inline void database:: + load (T& obj, section& s) + { + return load_<T, id_mysql> (obj, s); + } + + template <typename T> + inline typename object_traits<T>::pointer_type database:: + find (const typename object_traits<T>::id_type& id) + { + return find_<T, id_mysql> (id); + } + + template <typename T> + inline bool database:: + find (const typename object_traits<T>::id_type& id, T& obj) + { + return find_<T, id_mysql> (id, obj); + } + + template <typename T> + inline void database:: + reload (T& obj) + { + reload_<T, id_mysql> (obj); + } + + template <typename T> + inline void database:: + reload (T* p) + { + reload<T> (*p); + } + + template <typename T, template <typename> class P> + inline void database:: + reload (const P<T>& p) + { + reload (odb::pointer_traits< P<T> >::get_ref (p)); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + reload (const P<T, A1>& p) + { + reload (odb::pointer_traits< P<T, A1> >::get_ref (p)); + } + + template <typename T, template <typename> class P> + inline void database:: + reload (P<T>& p) + { + reload (odb::pointer_traits< P<T> >::get_ref (p)); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + reload (P<T, A1>& p) + { + reload (odb::pointer_traits< P<T, A1> >::get_ref (p)); + } + + template <typename T> + inline void database:: + reload (const typename object_traits<T>::pointer_type& pobj) + { + typedef typename object_traits<T>::pointer_type pointer_type; + + reload (odb::pointer_traits<pointer_type>::get_ref (pobj)); + } + + template <typename T> + inline void database:: + update (T& obj) + { + update_<T, id_mysql> (obj); + } + + template <typename T> + inline void database:: + update (T* p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + update_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline void database:: + update (const P<T>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + update_<T, id_mysql> (pobj); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + update (const P<T, A1>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + update_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline void database:: + update (P<T>& p) + { + const P<T>& cr (p); + update<T, P> (cr); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + update (P<T, A1>& p) + { + const P<T, A1>& cr (p); + update<T, A1, P> (cr); + } + + template <typename T> + inline void database:: + update (const typename object_traits<T>::pointer_type& pobj) + { + update_<T, id_mysql> (pobj); + } + + template <typename T> + inline void database:: + update (const T& obj, const section& s) + { + update_<T, id_mysql> (obj, s); + } + + template <typename T> + inline void database:: + erase (const typename object_traits<T>::id_type& id) + { + return erase_<T, id_mysql> (id); + } + + template <typename T> + inline void database:: + erase (T& obj) + { + return erase_<T, id_mysql> (obj); + } + + template <typename T> + inline void database:: + erase (T* p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + erase_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline void database:: + erase (const P<T>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + erase_<T, id_mysql> (pobj); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + erase (const P<T, A1>& p) + { + typedef typename object_traits<T>::pointer_type object_pointer; + + // The passed pointer should be the same or implicit-convertible + // to the object pointer. This way we make sure the object pointer + // does not assume ownership of the passed object. + // + const object_pointer& pobj (p); + + erase_<T, id_mysql> (pobj); + } + + template <typename T, template <typename> class P> + inline void database:: + erase (P<T>& p) + { + const P<T>& cr (p); + erase<T, P> (cr); + } + + template <typename T, typename A1, template <typename, typename> class P> + inline void database:: + erase (P<T, A1>& p) + { + const P<T, A1>& cr (p); + erase<T, A1, P> (cr); + } + + template <typename T> + inline void database:: + erase (const typename object_traits<T>::pointer_type& pobj) + { + erase_<T, id_mysql> (pobj); + } + + template <typename T> + inline unsigned long long database:: + erase_query () + { + // T is always object_type. + // + return erase_query<T> (mysql::query_base ()); + } + + template <typename T> + inline unsigned long long database:: + erase_query (const char* q) + { + // T is always object_type. + // + return erase_query<T> (mysql::query_base (q)); + } + + template <typename T> + inline unsigned long long database:: + erase_query (const std::string& q) + { + // T is always object_type. + // + return erase_query<T> (mysql::query_base (q)); + } + + template <typename T> + inline unsigned long long database:: + erase_query (const mysql::query_base& q) + { + // T is always object_type. + // + return object_traits_impl<T, id_mysql>::erase_query (*this, q); + } + + template <typename T> + inline unsigned long long database:: + erase_query (const odb::query_base& q) + { + // Translate to native query. + // + return erase_query<T> (mysql::query_base (q)); + } + + template <typename T> + inline result<T> database:: + query (bool cache) + { + return query<T> (mysql::query_base (), cache); + } + + template <typename T> + inline result<T> database:: + query (const char* q, bool cache) + { + return query<T> (mysql::query_base (q), cache); + } + + template <typename T> + inline result<T> database:: + query (const std::string& q, bool cache) + { + return query<T> (mysql::query_base (q), cache); + } + + template <typename T> + inline result<T> database:: + query (const mysql::query_base& q, bool cache) + { + // T is always object_type. We also don't need to check for transaction + // here; object_traits::query () does this. + // + result<T> r (query_<T, id_mysql>::call (*this, q)); + + if (cache) + r.cache (); + + return r; + } + + template <typename T> + inline result<T> database:: + query (const odb::query_base& q, bool cache) + { + // Translate to native query. + // + return query<T> (mysql::query_base (q), cache); + } + + template <typename T> + inline typename result<T>::pointer_type database:: + query_one () + { + return query_one<T> (mysql::query_base ()); + } + + template <typename T> + inline bool database:: + query_one (T& o) + { + return query_one<T> (mysql::query_base (), o); + } + + template <typename T> + inline T database:: + query_value () + { + return query_value<T> (mysql::query_base ()); + } + + template <typename T> + inline typename result<T>::pointer_type database:: + query_one (const char* q) + { + return query_one<T> (mysql::query_base (q)); + } + + template <typename T> + inline bool database:: + query_one (const char* q, T& o) + { + return query_one<T> (mysql::query_base (q), o); + } + + template <typename T> + inline T database:: + query_value (const char* q) + { + return query_value<T> (mysql::query_base (q)); + } + + template <typename T> + inline typename result<T>::pointer_type database:: + query_one (const std::string& q) + { + return query_one<T> (mysql::query_base (q)); + } + + template <typename T> + inline bool database:: + query_one (const std::string& q, T& o) + { + return query_one<T> (mysql::query_base (q), o); + } + + template <typename T> + inline T database:: + query_value (const std::string& q) + { + return query_value<T> (mysql::query_base (q)); + } + + template <typename T> + inline typename result<T>::pointer_type database:: + query_one (const mysql::query_base& q) + { + // T is always object_type. We also don't need to check for transaction + // here; object_traits::query () does this. + // + return query_one_<T, id_mysql> (q); + } + + template <typename T> + inline bool database:: + query_one (const mysql::query_base& q, T& o) + { + // T is always object_type. We also don't need to check for transaction + // here; object_traits::query () does this. + // + return query_one_<T, id_mysql> (q, o); + } + + template <typename T> + inline T database:: + query_value (const mysql::query_base& q) + { + // T is always object_type. We also don't need to check for transaction + // here; object_traits::query () does this. + // + return query_value_<T, id_mysql> (q); + } + + template <typename T> + inline typename result<T>::pointer_type database:: + query_one (const odb::query_base& q) + { + // Translate to native query. + // + return query_one<T> (mysql::query_base (q)); + } + + template <typename T> + inline bool database:: + query_one (const odb::query_base& q, T& o) + { + // Translate to native query. + // + return query_one<T> (mysql::query_base (q), o); + } + + template <typename T> + inline T database:: + query_value (const odb::query_base& q) + { + // Translate to native query. + // + return query_value<T> (mysql::query_base (q)); + } + + template <typename T> + inline prepared_query<T> database:: + prepare_query (const char* n, const char* q) + { + return prepare_query<T> (n, mysql::query_base (q)); + } + + template <typename T> + inline prepared_query<T> database:: + prepare_query (const char* n, const std::string& q) + { + return prepare_query<T> (n, mysql::query_base (q)); + } + + template <typename T> + inline prepared_query<T> database:: + prepare_query (const char* n, const mysql::query_base& q) + { + // Throws if not in transaction. + // + mysql::connection& c (transaction::current ().connection (*this)); + return c.prepare_query<T> (n, q); + } + + template <typename T> + inline prepared_query<T> database:: + prepare_query (const char* n, const odb::query_base& q) + { + // Translate to native query. + // + return prepare_query<T> (n, mysql::query_base (q)); + } + } +} diff --git a/libodb-mysql/odb/mysql/details/build2/config-stub.h b/libodb-mysql/odb/mysql/details/build2/config-stub.h new file mode 100644 index 0000000..d9d08eb --- /dev/null +++ b/libodb-mysql/odb/mysql/details/build2/config-stub.h @@ -0,0 +1,5 @@ +/* file : odb/mysql/details/build2/config-stub.h + * license : GNU GPL v2; see accompanying LICENSE file + */ + +#include <odb/mysql/details/config.h> diff --git a/libodb-mysql/odb/mysql/details/build2/config-vc-stub.h b/libodb-mysql/odb/mysql/details/build2/config-vc-stub.h new file mode 100644 index 0000000..e22c7c2 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/build2/config-vc-stub.h @@ -0,0 +1,5 @@ +/* file : odb/mysql/details/build2/config-vc-stub.h + * license : GNU GPL v2; see accompanying LICENSE file + */ + +#include <odb/mysql/details/config-vc.h> diff --git a/libodb-mysql/odb/mysql/details/build2/config-vc.h b/libodb-mysql/odb/mysql/details/build2/config-vc.h new file mode 100644 index 0000000..3adb630 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/build2/config-vc.h @@ -0,0 +1,15 @@ +/* file : odb/mysql/details/build2/config-vc.h + * license : GNU GPL v2; see accompanying LICENSE file + */ + +/* Configuration file for Windows/VC++ for the build2 build. */ + +#ifndef ODB_MYSQL_DETAILS_CONFIG_VC_H +#define ODB_MYSQL_DETAILS_CONFIG_VC_H + +/* Define LIBODB_MYSQL_BUILD2 for the installed case. */ +#ifndef LIBODB_MYSQL_BUILD2 +# define LIBODB_MYSQL_BUILD2 +#endif + +#endif /* ODB_MYSQL_DETAILS_CONFIG_VC_H */ diff --git a/libodb-mysql/odb/mysql/details/build2/config.h b/libodb-mysql/odb/mysql/details/build2/config.h new file mode 100644 index 0000000..ef6a60f --- /dev/null +++ b/libodb-mysql/odb/mysql/details/build2/config.h @@ -0,0 +1,17 @@ +/* file : odb/mysql/details/build2/config.h + * license : GNU GPL v2; see accompanying LICENSE file + */ + +/* Static configuration file for the build2 build. The installed case + (when LIBODB_MYSQL_BUILD2 is not necessarily defined) is the only + reason we have it. */ + +#ifndef ODB_MYSQL_DETAILS_CONFIG_H +#define ODB_MYSQL_DETAILS_CONFIG_H + +/* Define LIBODB_MYSQL_BUILD2 for the installed case. */ +#ifndef LIBODB_MYSQL_BUILD2 +# define LIBODB_MYSQL_BUILD2 +#endif + +#endif /* ODB_MYSQL_DETAILS_CONFIG_H */ diff --git a/libodb-mysql/odb/mysql/details/config-vc.h b/libodb-mysql/odb/mysql/details/config-vc.h new file mode 100644 index 0000000..fb01864 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/config-vc.h @@ -0,0 +1,12 @@ +/* file : odb/mysql/details/config-vc.h + * license : GNU GPL v2; see accompanying LICENSE file + */ + +#ifndef ODB_MYSQL_DETAILS_CONFIG_VC_H +#define ODB_MYSQL_DETAILS_CONFIG_VC_H + +#if !defined(LIBODB_MYSQL_INCLUDE_SHORT) && !defined (LIBODB_MYSQL_INCLUDE_LONG) +# define LIBODB_MYSQL_INCLUDE_SHORT 1 +#endif + +#endif /* ODB_MYSQL_DETAILS_CONFIG_VC_H */ diff --git a/libodb-mysql/odb/mysql/details/config.h.in b/libodb-mysql/odb/mysql/details/config.h.in new file mode 100644 index 0000000..3b7869b --- /dev/null +++ b/libodb-mysql/odb/mysql/details/config.h.in @@ -0,0 +1,17 @@ +/* file : odb/mysql/details/config.h.in + * license : GNU GPL v2; see accompanying LICENSE file + */ + +/* This file is automatically processed by configure. */ + +#ifndef ODB_MYSQL_DETAILS_CONFIG_H +#define ODB_MYSQL_DETAILS_CONFIG_H + +#undef LIBODB_MYSQL_STATIC_LIB + +#undef LIBODB_MYSQL_INCLUDE_SHORT +#undef LIBODB_MYSQL_INCLUDE_LONG + +#undef LIBODB_MYSQL_THR_KEY_VISIBLE + +#endif /* ODB_MYSQL_DETAILS_CONFIG_H */ diff --git a/libodb-mysql/odb/mysql/details/config.hxx b/libodb-mysql/odb/mysql/details/config.hxx new file mode 100644 index 0000000..eeeee5c --- /dev/null +++ b/libodb-mysql/odb/mysql/details/config.hxx @@ -0,0 +1,32 @@ +// file : odb/mysql/details/config.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_DETAILS_CONFIG_HXX +#define ODB_MYSQL_DETAILS_CONFIG_HXX + +// no pre + +#ifdef ODB_COMPILER +# error libodb-mysql header included in odb-compiled header +#elif !defined(LIBODB_MYSQL_BUILD2) +# ifdef _MSC_VER +# include <odb/mysql/details/config-vc.h> +# else +# include <odb/mysql/details/config.h> +# endif +#endif + +// LIBODB_MYSQL_BUILD2 macro can be defined either by the buildfile or by the +// included odb/mysql/details/config*.h (see above). +// +#ifdef LIBODB_MYSQL_BUILD2 +# ifdef LIBODB_MYSQL_INCLUDE_SHORT +# error mysql headers must be included with mysql/ prefix +# elif !defined(LIBODB_MYSQL_INCLUDE_LONG) +# define LIBODB_MYSQL_INCLUDE_LONG 1 +# endif +#endif + +// no post + +#endif // ODB_MYSQL_DETAILS_CONFIG_HXX diff --git a/libodb-mysql/odb/mysql/details/conversion.hxx b/libodb-mysql/odb/mysql/details/conversion.hxx new file mode 100644 index 0000000..5d1f575 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/conversion.hxx @@ -0,0 +1,58 @@ +// file : odb/mysql/details/conversion.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_DETAILS_CONVERSION_HXX +#define ODB_MYSQL_DETAILS_CONVERSION_HXX + +#include <odb/mysql/traits.hxx> + +#include <odb/details/meta/answer.hxx> + +namespace odb +{ + // @@ Revise this. + // + namespace details {} + + namespace mysql + { + namespace details + { + using namespace odb::details; + + // Detect whether conversion is specified in type_traits. + // + template <typename T> + meta::yes + conversion_p_test (typename type_traits<T>::conversion*); + + template <typename T> + meta::no + conversion_p_test (...); + + template <typename T> + struct conversion_p + { + static const bool value = + sizeof (conversion_p_test<T> (0)) == sizeof (meta::yes); + }; + + template <typename T, bool = conversion_p<T>::value> + struct conversion; + + template <typename T> + struct conversion<T, true> + { + static const char* to () {return type_traits<T>::conversion::to ();} + }; + + template <typename T> + struct conversion<T, false> + { + static const char* to () {return 0;} + }; + } + } +} + +#endif // ODB_MYSQL_DETAILS_CONVERSION_HXX diff --git a/libodb-mysql/odb/mysql/details/export.hxx b/libodb-mysql/odb/mysql/details/export.hxx new file mode 100644 index 0000000..e7c3871 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/export.hxx @@ -0,0 +1,78 @@ +// file : odb/mysql/details/export.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_DETAILS_EXPORT_HXX +#define ODB_MYSQL_DETAILS_EXPORT_HXX + +#include <odb/pre.hxx> + +#include <odb/mysql/details/config.hxx> + +// Normally we don't export class templates (but do complete specializations), +// inline functions, and classes with only inline member functions. Exporting +// classes that inherit from non-exported/imported bases (e.g., std::string) +// will end up badly. The only known workarounds are to not inherit or to not +// export. Also, MinGW GCC doesn't like seeing non-exported function being +// used before their inline definition. The workaround is to reorder code. In +// the end it's all trial and error. + +#ifdef LIBODB_MYSQL_BUILD2 + +#if defined(LIBODB_MYSQL_STATIC) // Using static. +# define LIBODB_MYSQL_EXPORT +#elif defined(LIBODB_MYSQL_STATIC_BUILD) // Building static. +# define LIBODB_MYSQL_EXPORT +#elif defined(LIBODB_MYSQL_SHARED) // Using shared. +# ifdef _WIN32 +# define LIBODB_MYSQL_EXPORT __declspec(dllimport) +# else +# define LIBODB_MYSQL_EXPORT +# endif +#elif defined(LIBODB_MYSQL_SHARED_BUILD) // Building shared. +# ifdef _WIN32 +# define LIBODB_MYSQL_EXPORT __declspec(dllexport) +# else +# define LIBODB_MYSQL_EXPORT +# endif +#else +// If none of the above macros are defined, then we assume we are being used +// by some third-party build system that cannot/doesn't signal the library +// type. Note that this fallback works for both static and shared but in case +// of shared will be sub-optimal compared to having dllimport. +// +# define LIBODB_MYSQL_EXPORT // Using static or shared. +#endif + +#else // LIBODB_MYSQL_BUILD2 + +#ifdef LIBODB_MYSQL_STATIC_LIB +# define LIBODB_MYSQL_EXPORT +#else +# ifdef _WIN32 +# ifdef _MSC_VER +# ifdef LIBODB_MYSQL_DYNAMIC_LIB +# define LIBODB_MYSQL_EXPORT __declspec(dllexport) +# else +# define LIBODB_MYSQL_EXPORT __declspec(dllimport) +# endif +# else +# ifdef LIBODB_MYSQL_DYNAMIC_LIB +# ifdef DLL_EXPORT +# define LIBODB_MYSQL_EXPORT __declspec(dllexport) +# else +# define LIBODB_MYSQL_EXPORT +# endif +# else +# define LIBODB_MYSQL_EXPORT __declspec(dllimport) +# endif +# endif +# else +# define LIBODB_MYSQL_EXPORT +# endif +#endif + +#endif // LIBODB_MYSQL_BUILD2 + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_DETAILS_EXPORT_HXX diff --git a/libodb-mysql/odb/mysql/details/options.cli b/libodb-mysql/odb/mysql/details/options.cli new file mode 100644 index 0000000..845c292 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/options.cli @@ -0,0 +1,61 @@ +// file : odb/mysql/details/options.cli +// license : GNU GPL v2; see accompanying LICENSE file + +include <string>; + +namespace odb +{ + namespace mysql + { + namespace details + { + class options + { + std::string --user + { + "<name>", + "MySQL database user." + }; + + std::string --password + { + "<str>", + "MySQL database password" + }; + + std::string --database + { + "<name>", + "MySQL database name." + }; + + std::string --host + { + "<addr>", + "MySQL database host name or address (localhost by default)." + }; + + unsigned int --port = 0 + { + "<integer>", + "MySQL database port number." + }; + + std::string --socket + { + "<name>", + "MySQL database socket name." + }; + + std::string --options-file + { + "<file>", + "Read additional options from <file>. Each option should appear on a + separate line optionally followed by space or equal sign (\cb{=}) + and an option value. Empty lines and lines starting with \cb{#} are + ignored." + }; + }; + } + } +} diff --git a/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.cxx b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.cxx new file mode 100644 index 0000000..1e15af6 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.cxx @@ -0,0 +1,1125 @@ +// -*- C++ -*- +// +// This file was generated by CLI, a command line interface +// compiler for C++. +// + +// Begin prologue. +// +// +// End prologue. + +#include <odb/mysql/details/options.hxx> + +#include <map> +#include <set> +#include <string> +#include <vector> +#include <utility> +#include <ostream> +#include <sstream> +#include <cstring> +#include <fstream> + +namespace odb +{ + namespace mysql + { + namespace details + { + namespace cli + { + // unknown_option + // + unknown_option:: + ~unknown_option () throw () + { + } + + void unknown_option:: + print (::std::ostream& os) const + { + os << "unknown option '" << option ().c_str () << "'"; + } + + const char* unknown_option:: + what () const throw () + { + return "unknown option"; + } + + // unknown_argument + // + unknown_argument:: + ~unknown_argument () throw () + { + } + + void unknown_argument:: + print (::std::ostream& os) const + { + os << "unknown argument '" << argument ().c_str () << "'"; + } + + const char* unknown_argument:: + what () const throw () + { + return "unknown argument"; + } + + // missing_value + // + missing_value:: + ~missing_value () throw () + { + } + + void missing_value:: + print (::std::ostream& os) const + { + os << "missing value for option '" << option ().c_str () << "'"; + } + + const char* missing_value:: + what () const throw () + { + return "missing option value"; + } + + // invalid_value + // + invalid_value:: + ~invalid_value () throw () + { + } + + void invalid_value:: + print (::std::ostream& os) const + { + os << "invalid value '" << value ().c_str () << "' for option '" + << option ().c_str () << "'"; + + if (!message ().empty ()) + os << ": " << message ().c_str (); + } + + const char* invalid_value:: + what () const throw () + { + return "invalid option value"; + } + + // eos_reached + // + void eos_reached:: + print (::std::ostream& os) const + { + os << what (); + } + + const char* eos_reached:: + what () const throw () + { + return "end of argument stream reached"; + } + + // file_io_failure + // + file_io_failure:: + ~file_io_failure () throw () + { + } + + void file_io_failure:: + print (::std::ostream& os) const + { + os << "unable to open file '" << file ().c_str () << "' or read failure"; + } + + const char* file_io_failure:: + what () const throw () + { + return "unable to open file or read failure"; + } + + // unmatched_quote + // + unmatched_quote:: + ~unmatched_quote () throw () + { + } + + void unmatched_quote:: + print (::std::ostream& os) const + { + os << "unmatched quote in argument '" << argument ().c_str () << "'"; + } + + const char* unmatched_quote:: + what () const throw () + { + return "unmatched quote"; + } + + // scanner + // + scanner:: + ~scanner () + { + } + + // argv_scanner + // + bool argv_scanner:: + more () + { + return i_ < argc_; + } + + const char* argv_scanner:: + peek () + { + if (i_ < argc_) + return argv_[i_]; + else + throw eos_reached (); + } + + const char* argv_scanner:: + next () + { + if (i_ < argc_) + { + const char* r (argv_[i_]); + + if (erase_) + { + for (int i (i_ + 1); i < argc_; ++i) + argv_[i - 1] = argv_[i]; + + --argc_; + argv_[argc_] = 0; + } + else + ++i_; + + ++start_position_; + return r; + } + else + throw eos_reached (); + } + + void argv_scanner:: + skip () + { + if (i_ < argc_) + { + ++i_; + ++start_position_; + } + else + throw eos_reached (); + } + + std::size_t argv_scanner:: + position () + { + return start_position_; + } + + // argv_file_scanner + // + int argv_file_scanner::zero_argc_ = 0; + std::string argv_file_scanner::empty_string_; + + bool argv_file_scanner:: + more () + { + if (!args_.empty ()) + return true; + + while (base::more ()) + { + // See if the next argument is the file option. + // + const char* a (base::peek ()); + const option_info* oi = 0; + const char* ov = 0; + + if (!skip_) + { + if ((oi = find (a)) != 0) + { + base::next (); + + if (!base::more ()) + throw missing_value (a); + + ov = base::next (); + } + else if (std::strncmp (a, "-", 1) == 0) + { + if ((ov = std::strchr (a, '=')) != 0) + { + std::string o (a, 0, ov - a); + if ((oi = find (o.c_str ())) != 0) + { + base::next (); + ++ov; + } + } + } + } + + if (oi != 0) + { + if (oi->search_func != 0) + { + std::string f (oi->search_func (ov, oi->arg)); + + if (!f.empty ()) + load (f); + } + else + load (ov); + + if (!args_.empty ()) + return true; + } + else + { + if (!skip_) + skip_ = (std::strcmp (a, "--") == 0); + + return true; + } + } + + return false; + } + + const char* argv_file_scanner:: + peek () + { + if (!more ()) + throw eos_reached (); + + return args_.empty () ? base::peek () : args_.front ().value.c_str (); + } + + const std::string& argv_file_scanner:: + peek_file () + { + if (!more ()) + throw eos_reached (); + + return args_.empty () ? empty_string_ : *args_.front ().file; + } + + std::size_t argv_file_scanner:: + peek_line () + { + if (!more ()) + throw eos_reached (); + + return args_.empty () ? 0 : args_.front ().line; + } + + const char* argv_file_scanner:: + next () + { + if (!more ()) + throw eos_reached (); + + if (args_.empty ()) + return base::next (); + else + { + hold_[i_ == 0 ? ++i_ : --i_].swap (args_.front ().value); + args_.pop_front (); + ++start_position_; + return hold_[i_].c_str (); + } + } + + void argv_file_scanner:: + skip () + { + if (!more ()) + throw eos_reached (); + + if (args_.empty ()) + return base::skip (); + else + { + args_.pop_front (); + ++start_position_; + } + } + + const argv_file_scanner::option_info* argv_file_scanner:: + find (const char* a) const + { + for (std::size_t i (0); i < options_count_; ++i) + if (std::strcmp (a, options_[i].option) == 0) + return &options_[i]; + + return 0; + } + + std::size_t argv_file_scanner:: + position () + { + return start_position_; + } + + void argv_file_scanner:: + load (const std::string& file) + { + using namespace std; + + ifstream is (file.c_str ()); + + if (!is.is_open ()) + throw file_io_failure (file); + + files_.push_back (file); + + arg a; + a.file = &*files_.rbegin (); + + for (a.line = 1; !is.eof (); ++a.line) + { + string line; + getline (is, line); + + if (is.fail () && !is.eof ()) + throw file_io_failure (file); + + string::size_type n (line.size ()); + + // Trim the line from leading and trailing whitespaces. + // + if (n != 0) + { + const char* f (line.c_str ()); + const char* l (f + n); + + const char* of (f); + while (f < l && (*f == ' ' || *f == '\t' || *f == '\r')) + ++f; + + --l; + + const char* ol (l); + while (l > f && (*l == ' ' || *l == '\t' || *l == '\r')) + --l; + + if (f != of || l != ol) + line = f <= l ? string (f, l - f + 1) : string (); + } + + // Ignore empty lines, those that start with #. + // + if (line.empty () || line[0] == '#') + continue; + + string::size_type p (string::npos); + if (line.compare (0, 1, "-") == 0) + { + p = line.find (' '); + + string::size_type q (line.find ('=')); + if (q != string::npos && q < p) + p = q; + } + + string s1; + if (p != string::npos) + { + s1.assign (line, 0, p); + + // Skip leading whitespaces in the argument. + // + if (line[p] == '=') + ++p; + else + { + n = line.size (); + for (++p; p < n; ++p) + { + char c (line[p]); + if (c != ' ' && c != '\t' && c != '\r') + break; + } + } + } + else if (!skip_) + skip_ = (line == "--"); + + string s2 (line, p != string::npos ? p : 0); + + // If the string (which is an option value or argument) is + // wrapped in quotes, remove them. + // + n = s2.size (); + char cf (s2[0]), cl (s2[n - 1]); + + if (cf == '"' || cf == '\'' || cl == '"' || cl == '\'') + { + if (n == 1 || cf != cl) + throw unmatched_quote (s2); + + s2 = string (s2, 1, n - 2); + } + + if (!s1.empty ()) + { + // See if this is another file option. + // + const option_info* oi; + if (!skip_ && (oi = find (s1.c_str ()))) + { + if (s2.empty ()) + throw missing_value (oi->option); + + if (oi->search_func != 0) + { + string f (oi->search_func (s2.c_str (), oi->arg)); + if (!f.empty ()) + load (f); + } + else + { + // If the path of the file being parsed is not simple and the + // path of the file that needs to be loaded is relative, then + // complete the latter using the former as a base. + // +#ifndef _WIN32 + string::size_type p (file.find_last_of ('/')); + bool c (p != string::npos && s2[0] != '/'); +#else + string::size_type p (file.find_last_of ("/\\")); + bool c (p != string::npos && s2[1] != ':'); +#endif + if (c) + s2.insert (0, file, 0, p + 1); + + load (s2); + } + + continue; + } + + a.value = s1; + args_.push_back (a); + } + + a.value = s2; + args_.push_back (a); + } + } + + template <typename X> + struct parser + { + static void + parse (X& x, bool& xs, scanner& s) + { + using namespace std; + + const char* o (s.next ()); + if (s.more ()) + { + string v (s.next ()); + istringstream is (v); + if (!(is >> x && is.peek () == istringstream::traits_type::eof ())) + throw invalid_value (o, v); + } + else + throw missing_value (o); + + xs = true; + } + }; + + template <> + struct parser<bool> + { + static void + parse (bool& x, bool& xs, scanner& s) + { + const char* o (s.next ()); + + if (s.more ()) + { + const char* v (s.next ()); + + if (std::strcmp (v, "1") == 0 || + std::strcmp (v, "true") == 0 || + std::strcmp (v, "TRUE") == 0 || + std::strcmp (v, "True") == 0) + x = true; + else if (std::strcmp (v, "0") == 0 || + std::strcmp (v, "false") == 0 || + std::strcmp (v, "FALSE") == 0 || + std::strcmp (v, "False") == 0) + x = false; + else + throw invalid_value (o, v); + } + else + throw missing_value (o); + + xs = true; + } + }; + + template <> + struct parser<std::string> + { + static void + parse (std::string& x, bool& xs, scanner& s) + { + const char* o (s.next ()); + + if (s.more ()) + x = s.next (); + else + throw missing_value (o); + + xs = true; + } + }; + + template <typename X> + struct parser<std::pair<X, std::size_t> > + { + static void + parse (std::pair<X, std::size_t>& x, bool& xs, scanner& s) + { + x.second = s.position (); + parser<X>::parse (x.first, xs, s); + } + }; + + template <typename X> + struct parser<std::vector<X> > + { + static void + parse (std::vector<X>& c, bool& xs, scanner& s) + { + X x; + bool dummy; + parser<X>::parse (x, dummy, s); + c.push_back (x); + xs = true; + } + }; + + template <typename X, typename C> + struct parser<std::set<X, C> > + { + static void + parse (std::set<X, C>& c, bool& xs, scanner& s) + { + X x; + bool dummy; + parser<X>::parse (x, dummy, s); + c.insert (x); + xs = true; + } + }; + + template <typename K, typename V, typename C> + struct parser<std::map<K, V, C> > + { + static void + parse (std::map<K, V, C>& m, bool& xs, scanner& s) + { + const char* o (s.next ()); + + if (s.more ()) + { + std::size_t pos (s.position ()); + std::string ov (s.next ()); + std::string::size_type p = ov.find ('='); + + K k = K (); + V v = V (); + std::string kstr (ov, 0, p); + std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ())); + + int ac (2); + char* av[] = + { + const_cast<char*> (o), + 0 + }; + + bool dummy; + if (!kstr.empty ()) + { + av[1] = const_cast<char*> (kstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<K>::parse (k, dummy, s); + } + + if (!vstr.empty ()) + { + av[1] = const_cast<char*> (vstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<V>::parse (v, dummy, s); + } + + m[k] = v; + } + else + throw missing_value (o); + + xs = true; + } + }; + + template <typename K, typename V, typename C> + struct parser<std::multimap<K, V, C> > + { + static void + parse (std::multimap<K, V, C>& m, bool& xs, scanner& s) + { + const char* o (s.next ()); + + if (s.more ()) + { + std::size_t pos (s.position ()); + std::string ov (s.next ()); + std::string::size_type p = ov.find ('='); + + K k = K (); + V v = V (); + std::string kstr (ov, 0, p); + std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ())); + + int ac (2); + char* av[] = + { + const_cast<char*> (o), + 0 + }; + + bool dummy; + if (!kstr.empty ()) + { + av[1] = const_cast<char*> (kstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<K>::parse (k, dummy, s); + } + + if (!vstr.empty ()) + { + av[1] = const_cast<char*> (vstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<V>::parse (v, dummy, s); + } + + m.insert (typename std::multimap<K, V, C>::value_type (k, v)); + } + else + throw missing_value (o); + + xs = true; + } + }; + + template <typename X, typename T, T X::*M> + void + thunk (X& x, scanner& s) + { + parser<T>::parse (x.*M, s); + } + + template <typename X, bool X::*M> + void + thunk (X& x, scanner& s) + { + s.next (); + x.*M = true; + } + + template <typename X, typename T, T X::*M, bool X::*S> + void + thunk (X& x, scanner& s) + { + parser<T>::parse (x.*M, x.*S, s); + } + } + } + } +} + +#include <map> + +namespace odb +{ + namespace mysql + { + namespace details + { + // options + // + + options:: + options () + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + } + + options:: + options (int& argc, + char** argv, + bool erase, + ::odb::mysql::details::cli::unknown_mode opt, + ::odb::mysql::details::cli::unknown_mode arg) + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + ::odb::mysql::details::cli::argv_scanner s (argc, argv, erase); + _parse (s, opt, arg); + } + + options:: + options (int start, + int& argc, + char** argv, + bool erase, + ::odb::mysql::details::cli::unknown_mode opt, + ::odb::mysql::details::cli::unknown_mode arg) + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + ::odb::mysql::details::cli::argv_scanner s (start, argc, argv, erase); + _parse (s, opt, arg); + } + + options:: + options (int& argc, + char** argv, + int& end, + bool erase, + ::odb::mysql::details::cli::unknown_mode opt, + ::odb::mysql::details::cli::unknown_mode arg) + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + ::odb::mysql::details::cli::argv_scanner s (argc, argv, erase); + _parse (s, opt, arg); + end = s.end (); + } + + options:: + options (int start, + int& argc, + char** argv, + int& end, + bool erase, + ::odb::mysql::details::cli::unknown_mode opt, + ::odb::mysql::details::cli::unknown_mode arg) + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + ::odb::mysql::details::cli::argv_scanner s (start, argc, argv, erase); + _parse (s, opt, arg); + end = s.end (); + } + + options:: + options (::odb::mysql::details::cli::scanner& s, + ::odb::mysql::details::cli::unknown_mode opt, + ::odb::mysql::details::cli::unknown_mode arg) + : user_ (), + user_specified_ (false), + password_ (), + password_specified_ (false), + database_ (), + database_specified_ (false), + host_ (), + host_specified_ (false), + port_ (0), + port_specified_ (false), + socket_ (), + socket_specified_ (false), + options_file_ (), + options_file_specified_ (false) + { + _parse (s, opt, arg); + } + + ::odb::mysql::details::cli::usage_para options:: + print_usage (::std::ostream& os, ::odb::mysql::details::cli::usage_para p) + { + CLI_POTENTIALLY_UNUSED (os); + + if (p != ::odb::mysql::details::cli::usage_para::none) + os << ::std::endl; + + os << "--user <name> MySQL database user." << ::std::endl; + + os << std::endl + << "--password <str> MySQL database password" << ::std::endl; + + os << std::endl + << "--database <name> MySQL database name." << ::std::endl; + + os << std::endl + << "--host <addr> MySQL database host name or address (localhost by" << ::std::endl + << " default)." << ::std::endl; + + os << std::endl + << "--port <integer> MySQL database port number." << ::std::endl; + + os << std::endl + << "--socket <name> MySQL database socket name." << ::std::endl; + + os << std::endl + << "--options-file <file> Read additional options from <file>. Each option should" << ::std::endl + << " appear on a separate line optionally followed by space or" << ::std::endl + << " equal sign (=) and an option value. Empty lines and lines" << ::std::endl + << " starting with # are ignored." << ::std::endl; + + p = ::odb::mysql::details::cli::usage_para::option; + + return p; + } + + typedef + std::map<std::string, void (*) (options&, ::odb::mysql::details::cli::scanner&)> + _cli_options_map; + + static _cli_options_map _cli_options_map_; + + struct _cli_options_map_init + { + _cli_options_map_init () + { + _cli_options_map_["--user"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::user_, + &options::user_specified_ >; + _cli_options_map_["--password"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::password_, + &options::password_specified_ >; + _cli_options_map_["--database"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::database_, + &options::database_specified_ >; + _cli_options_map_["--host"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::host_, + &options::host_specified_ >; + _cli_options_map_["--port"] = + &::odb::mysql::details::cli::thunk< options, unsigned int, &options::port_, + &options::port_specified_ >; + _cli_options_map_["--socket"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::socket_, + &options::socket_specified_ >; + _cli_options_map_["--options-file"] = + &::odb::mysql::details::cli::thunk< options, std::string, &options::options_file_, + &options::options_file_specified_ >; + } + }; + + static _cli_options_map_init _cli_options_map_init_; + + bool options:: + _parse (const char* o, ::odb::mysql::details::cli::scanner& s) + { + _cli_options_map::const_iterator i (_cli_options_map_.find (o)); + + if (i != _cli_options_map_.end ()) + { + (*(i->second)) (*this, s); + return true; + } + + return false; + } + + bool options:: + _parse (::odb::mysql::details::cli::scanner& s, + ::odb::mysql::details::cli::unknown_mode opt_mode, + ::odb::mysql::details::cli::unknown_mode arg_mode) + { + bool r = false; + bool opt = true; + + while (s.more ()) + { + const char* o = s.peek (); + + if (std::strcmp (o, "--") == 0) + { + opt = false; + s.skip (); + r = true; + continue; + } + + if (opt) + { + if (_parse (o, s)) + { + r = true; + continue; + } + + if (std::strncmp (o, "-", 1) == 0 && o[1] != '\0') + { + // Handle combined option values. + // + std::string co; + if (const char* v = std::strchr (o, '=')) + { + co.assign (o, 0, v - o); + ++v; + + int ac (2); + char* av[] = + { + const_cast<char*> (co.c_str ()), + const_cast<char*> (v) + }; + + ::odb::mysql::details::cli::argv_scanner ns (0, ac, av); + + if (_parse (co.c_str (), ns)) + { + // Parsed the option but not its value? + // + if (ns.end () != 2) + throw ::odb::mysql::details::cli::invalid_value (co, v); + + s.next (); + r = true; + continue; + } + else + { + // Set the unknown option and fall through. + // + o = co.c_str (); + } + } + + switch (opt_mode) + { + case ::odb::mysql::details::cli::unknown_mode::skip: + { + s.skip (); + r = true; + continue; + } + case ::odb::mysql::details::cli::unknown_mode::stop: + { + break; + } + case ::odb::mysql::details::cli::unknown_mode::fail: + { + throw ::odb::mysql::details::cli::unknown_option (o); + } + } + + break; + } + } + + switch (arg_mode) + { + case ::odb::mysql::details::cli::unknown_mode::skip: + { + s.skip (); + r = true; + continue; + } + case ::odb::mysql::details::cli::unknown_mode::stop: + { + break; + } + case ::odb::mysql::details::cli::unknown_mode::fail: + { + throw ::odb::mysql::details::cli::unknown_argument (o); + } + } + + break; + } + + return r; + } + } + } +} + +// Begin epilogue. +// +// +// End epilogue. + diff --git a/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.hxx b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.hxx new file mode 100644 index 0000000..daa7d52 --- /dev/null +++ b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.hxx @@ -0,0 +1,570 @@ +// -*- C++ -*- +// +// This file was generated by CLI, a command line interface +// compiler for C++. +// + +#ifndef LIBODB_MYSQL_DETAILS_OPTIONS_HXX +#define LIBODB_MYSQL_DETAILS_OPTIONS_HXX + +// Begin prologue. +// +// +// End prologue. + +#include <list> +#include <deque> +#include <iosfwd> +#include <string> +#include <cstddef> +#include <exception> + +#ifndef CLI_POTENTIALLY_UNUSED +# if defined(_MSC_VER) || defined(__xlC__) +# define CLI_POTENTIALLY_UNUSED(x) (void*)&x +# else +# define CLI_POTENTIALLY_UNUSED(x) (void)x +# endif +#endif + +namespace odb +{ + namespace mysql + { + namespace details + { + namespace cli + { + class usage_para + { + public: + enum value + { + none, + text, + option + }; + + usage_para (value); + + operator value () const + { + return v_; + } + + private: + value v_; + }; + + class unknown_mode + { + public: + enum value + { + skip, + stop, + fail + }; + + unknown_mode (value); + + operator value () const + { + return v_; + } + + private: + value v_; + }; + + // Exceptions. + // + + class exception: public std::exception + { + public: + virtual void + print (::std::ostream&) const = 0; + }; + + ::std::ostream& + operator<< (::std::ostream&, const exception&); + + class unknown_option: public exception + { + public: + virtual + ~unknown_option () throw (); + + unknown_option (const std::string& option); + + const std::string& + option () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + }; + + class unknown_argument: public exception + { + public: + virtual + ~unknown_argument () throw (); + + unknown_argument (const std::string& argument); + + const std::string& + argument () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string argument_; + }; + + class missing_value: public exception + { + public: + virtual + ~missing_value () throw (); + + missing_value (const std::string& option); + + const std::string& + option () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + }; + + class invalid_value: public exception + { + public: + virtual + ~invalid_value () throw (); + + invalid_value (const std::string& option, + const std::string& value, + const std::string& message = std::string ()); + + const std::string& + option () const; + + const std::string& + value () const; + + const std::string& + message () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + std::string value_; + std::string message_; + }; + + class eos_reached: public exception + { + public: + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + }; + + class file_io_failure: public exception + { + public: + virtual + ~file_io_failure () throw (); + + file_io_failure (const std::string& file); + + const std::string& + file () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string file_; + }; + + class unmatched_quote: public exception + { + public: + virtual + ~unmatched_quote () throw (); + + unmatched_quote (const std::string& argument); + + const std::string& + argument () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string argument_; + }; + + // Command line argument scanner interface. + // + // The values returned by next() are guaranteed to be valid + // for the two previous arguments up until a call to a third + // peek() or next(). + // + // The position() function returns a monotonically-increasing + // number which, if stored, can later be used to determine the + // relative position of the argument returned by the following + // call to next(). Note that if multiple scanners are used to + // extract arguments from multiple sources, then the end + // position of the previous scanner should be used as the + // start position of the next. + // + class scanner + { + public: + virtual + ~scanner (); + + virtual bool + more () = 0; + + virtual const char* + peek () = 0; + + virtual const char* + next () = 0; + + virtual void + skip () = 0; + + virtual std::size_t + position () = 0; + }; + + class argv_scanner: public scanner + { + public: + argv_scanner (int& argc, + char** argv, + bool erase = false, + std::size_t start_position = 0); + + argv_scanner (int start, + int& argc, + char** argv, + bool erase = false, + std::size_t start_position = 0); + + int + end () const; + + virtual bool + more (); + + virtual const char* + peek (); + + virtual const char* + next (); + + virtual void + skip (); + + virtual std::size_t + position (); + + protected: + std::size_t start_position_; + int i_; + int& argc_; + char** argv_; + bool erase_; + }; + + class argv_file_scanner: public argv_scanner + { + public: + argv_file_scanner (int& argc, + char** argv, + const std::string& option, + bool erase = false, + std::size_t start_position = 0); + + argv_file_scanner (int start, + int& argc, + char** argv, + const std::string& option, + bool erase = false, + std::size_t start_position = 0); + + argv_file_scanner (const std::string& file, + const std::string& option, + std::size_t start_position = 0); + + struct option_info + { + // If search_func is not NULL, it is called, with the arg + // value as the second argument, to locate the options file. + // If it returns an empty string, then the file is ignored. + // + const char* option; + std::string (*search_func) (const char*, void* arg); + void* arg; + }; + + argv_file_scanner (int& argc, + char** argv, + const option_info* options, + std::size_t options_count, + bool erase = false, + std::size_t start_position = 0); + + argv_file_scanner (int start, + int& argc, + char** argv, + const option_info* options, + std::size_t options_count, + bool erase = false, + std::size_t start_position = 0); + + argv_file_scanner (const std::string& file, + const option_info* options = 0, + std::size_t options_count = 0, + std::size_t start_position = 0); + + virtual bool + more (); + + virtual const char* + peek (); + + virtual const char* + next (); + + virtual void + skip (); + + virtual std::size_t + position (); + + // Return the file path if the peeked at argument came from a file and + // the empty string otherwise. The reference is guaranteed to be valid + // till the end of the scanner lifetime. + // + const std::string& + peek_file (); + + // Return the 1-based line number if the peeked at argument came from + // a file and zero otherwise. + // + std::size_t + peek_line (); + + private: + const option_info* + find (const char*) const; + + void + load (const std::string& file); + + typedef argv_scanner base; + + const std::string option_; + option_info option_info_; + const option_info* options_; + std::size_t options_count_; + + struct arg + { + std::string value; + const std::string* file; + std::size_t line; + }; + + std::deque<arg> args_; + std::list<std::string> files_; + + // Circular buffer of two arguments. + // + std::string hold_[2]; + std::size_t i_; + + bool skip_; + + static int zero_argc_; + static std::string empty_string_; + }; + + template <typename X> + struct parser; + } + } + } +} + +#include <string> + +namespace odb +{ + namespace mysql + { + namespace details + { + class options + { + public: + options (); + + options (int& argc, + char** argv, + bool erase = false, + ::odb::mysql::details::cli::unknown_mode option = ::odb::mysql::details::cli::unknown_mode::fail, + ::odb::mysql::details::cli::unknown_mode argument = ::odb::mysql::details::cli::unknown_mode::stop); + + options (int start, + int& argc, + char** argv, + bool erase = false, + ::odb::mysql::details::cli::unknown_mode option = ::odb::mysql::details::cli::unknown_mode::fail, + ::odb::mysql::details::cli::unknown_mode argument = ::odb::mysql::details::cli::unknown_mode::stop); + + options (int& argc, + char** argv, + int& end, + bool erase = false, + ::odb::mysql::details::cli::unknown_mode option = ::odb::mysql::details::cli::unknown_mode::fail, + ::odb::mysql::details::cli::unknown_mode argument = ::odb::mysql::details::cli::unknown_mode::stop); + + options (int start, + int& argc, + char** argv, + int& end, + bool erase = false, + ::odb::mysql::details::cli::unknown_mode option = ::odb::mysql::details::cli::unknown_mode::fail, + ::odb::mysql::details::cli::unknown_mode argument = ::odb::mysql::details::cli::unknown_mode::stop); + + options (::odb::mysql::details::cli::scanner&, + ::odb::mysql::details::cli::unknown_mode option = ::odb::mysql::details::cli::unknown_mode::fail, + ::odb::mysql::details::cli::unknown_mode argument = ::odb::mysql::details::cli::unknown_mode::stop); + + // Option accessors. + // + const std::string& + user () const; + + bool + user_specified () const; + + const std::string& + password () const; + + bool + password_specified () const; + + const std::string& + database () const; + + bool + database_specified () const; + + const std::string& + host () const; + + bool + host_specified () const; + + const unsigned int& + port () const; + + bool + port_specified () const; + + const std::string& + socket () const; + + bool + socket_specified () const; + + const std::string& + options_file () const; + + bool + options_file_specified () const; + + // Print usage information. + // + static ::odb::mysql::details::cli::usage_para + print_usage (::std::ostream&, + ::odb::mysql::details::cli::usage_para = ::odb::mysql::details::cli::usage_para::none); + + // Implementation details. + // + protected: + bool + _parse (const char*, ::odb::mysql::details::cli::scanner&); + + private: + bool + _parse (::odb::mysql::details::cli::scanner&, + ::odb::mysql::details::cli::unknown_mode option, + ::odb::mysql::details::cli::unknown_mode argument); + + public: + std::string user_; + bool user_specified_; + std::string password_; + bool password_specified_; + std::string database_; + bool database_specified_; + std::string host_; + bool host_specified_; + unsigned int port_; + bool port_specified_; + std::string socket_; + bool socket_specified_; + std::string options_file_; + bool options_file_specified_; + }; + } + } +} + +#include <odb/mysql/details/options.ixx> + +// Begin epilogue. +// +// +// End epilogue. + +#endif // LIBODB_MYSQL_DETAILS_OPTIONS_HXX diff --git a/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.ixx b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.ixx new file mode 100644 index 0000000..66bc5df --- /dev/null +++ b/libodb-mysql/odb/mysql/details/pregenerated/odb/mysql/details/options.ixx @@ -0,0 +1,384 @@ +// -*- C++ -*- +// +// This file was generated by CLI, a command line interface +// compiler for C++. +// + +// Begin prologue. +// +// +// End prologue. + +#include <cassert> + +namespace odb +{ + namespace mysql + { + namespace details + { + namespace cli + { + // usage_para + // + inline usage_para:: + usage_para (value v) + : v_ (v) + { + } + + // unknown_mode + // + inline unknown_mode:: + unknown_mode (value v) + : v_ (v) + { + } + + // exception + // + inline ::std::ostream& + operator<< (::std::ostream& os, const exception& e) + { + e.print (os); + return os; + } + + // unknown_option + // + inline unknown_option:: + unknown_option (const std::string& option) + : option_ (option) + { + } + + inline const std::string& unknown_option:: + option () const + { + return option_; + } + + // unknown_argument + // + inline unknown_argument:: + unknown_argument (const std::string& argument) + : argument_ (argument) + { + } + + inline const std::string& unknown_argument:: + argument () const + { + return argument_; + } + + // missing_value + // + inline missing_value:: + missing_value (const std::string& option) + : option_ (option) + { + } + + inline const std::string& missing_value:: + option () const + { + return option_; + } + + // invalid_value + // + inline invalid_value:: + invalid_value (const std::string& option, + const std::string& value, + const std::string& message) + : option_ (option), + value_ (value), + message_ (message) + { + } + + inline const std::string& invalid_value:: + option () const + { + return option_; + } + + inline const std::string& invalid_value:: + value () const + { + return value_; + } + + inline const std::string& invalid_value:: + message () const + { + return message_; + } + + // file_io_failure + // + inline file_io_failure:: + file_io_failure (const std::string& file) + : file_ (file) + { + } + + inline const std::string& file_io_failure:: + file () const + { + return file_; + } + + // unmatched_quote + // + inline unmatched_quote:: + unmatched_quote (const std::string& argument) + : argument_ (argument) + { + } + + inline const std::string& unmatched_quote:: + argument () const + { + return argument_; + } + + // argv_scanner + // + inline argv_scanner:: + argv_scanner (int& argc, + char** argv, + bool erase, + std::size_t sp) + : start_position_ (sp + 1), + i_ (1), + argc_ (argc), + argv_ (argv), + erase_ (erase) + { + } + + inline argv_scanner:: + argv_scanner (int start, + int& argc, + char** argv, + bool erase, + std::size_t sp) + : start_position_ (sp + static_cast<std::size_t> (start)), + i_ (start), + argc_ (argc), + argv_ (argv), + erase_ (erase) + { + } + + inline int argv_scanner:: + end () const + { + return i_; + } + + // argv_file_scanner + // + inline argv_file_scanner:: + argv_file_scanner (int& argc, + char** argv, + const std::string& option, + bool erase, + std::size_t sp) + : argv_scanner (argc, argv, erase, sp), + option_ (option), + options_ (&option_info_), + options_count_ (1), + i_ (1), + skip_ (false) + { + option_info_.option = option_.c_str (); + option_info_.search_func = 0; + } + + inline argv_file_scanner:: + argv_file_scanner (int start, + int& argc, + char** argv, + const std::string& option, + bool erase, + std::size_t sp) + : argv_scanner (start, argc, argv, erase, sp), + option_ (option), + options_ (&option_info_), + options_count_ (1), + i_ (1), + skip_ (false) + { + option_info_.option = option_.c_str (); + option_info_.search_func = 0; + } + + inline argv_file_scanner:: + argv_file_scanner (const std::string& file, + const std::string& option, + std::size_t sp) + : argv_scanner (0, zero_argc_, 0, sp), + option_ (option), + options_ (&option_info_), + options_count_ (1), + i_ (1), + skip_ (false) + { + option_info_.option = option_.c_str (); + option_info_.search_func = 0; + + load (file); + } + + inline argv_file_scanner:: + argv_file_scanner (int& argc, + char** argv, + const option_info* options, + std::size_t options_count, + bool erase, + std::size_t sp) + : argv_scanner (argc, argv, erase, sp), + options_ (options), + options_count_ (options_count), + i_ (1), + skip_ (false) + { + } + + inline argv_file_scanner:: + argv_file_scanner (int start, + int& argc, + char** argv, + const option_info* options, + std::size_t options_count, + bool erase, + std::size_t sp) + : argv_scanner (start, argc, argv, erase, sp), + options_ (options), + options_count_ (options_count), + i_ (1), + skip_ (false) + { + } + + inline argv_file_scanner:: + argv_file_scanner (const std::string& file, + const option_info* options, + std::size_t options_count, + std::size_t sp) + : argv_scanner (0, zero_argc_, 0, sp), + options_ (options), + options_count_ (options_count), + i_ (1), + skip_ (false) + { + load (file); + } + } + } + } +} + +namespace odb +{ + namespace mysql + { + namespace details + { + // options + // + + inline const std::string& options:: + user () const + { + return this->user_; + } + + inline bool options:: + user_specified () const + { + return this->user_specified_; + } + + inline const std::string& options:: + password () const + { + return this->password_; + } + + inline bool options:: + password_specified () const + { + return this->password_specified_; + } + + inline const std::string& options:: + database () const + { + return this->database_; + } + + inline bool options:: + database_specified () const + { + return this->database_specified_; + } + + inline const std::string& options:: + host () const + { + return this->host_; + } + + inline bool options:: + host_specified () const + { + return this->host_specified_; + } + + inline const unsigned int& options:: + port () const + { + return this->port_; + } + + inline bool options:: + port_specified () const + { + return this->port_specified_; + } + + inline const std::string& options:: + socket () const + { + return this->socket_; + } + + inline bool options:: + socket_specified () const + { + return this->socket_specified_; + } + + inline const std::string& options:: + options_file () const + { + return this->options_file_; + } + + inline bool options:: + options_file_specified () const + { + return this->options_file_specified_; + } + } + } +} + +// Begin epilogue. +// +// +// End epilogue. diff --git a/libodb-mysql/odb/mysql/enum.cxx b/libodb-mysql/odb/mysql/enum.cxx new file mode 100644 index 0000000..1e53b29 --- /dev/null +++ b/libodb-mysql/odb/mysql/enum.cxx @@ -0,0 +1,28 @@ +// file : odb/mysql/enums.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::memmove +#include <cassert> + +#include <odb/mysql/enum.hxx> + +namespace odb +{ + namespace mysql + { + void enum_traits:: + strip_value (const details::buffer& i, unsigned long& size) + { + char* d (const_cast<char*> (i.data ())); + + unsigned long p (0); + for (; p < size && d[p] != ' '; ++p) ; + assert (p != size); + + p++; // Skip space; + size -= p; + + std::memmove (d, d + p, size); + } + } +} diff --git a/libodb-mysql/odb/mysql/enum.hxx b/libodb-mysql/odb/mysql/enum.hxx new file mode 100644 index 0000000..da0436d --- /dev/null +++ b/libodb-mysql/odb/mysql/enum.hxx @@ -0,0 +1,129 @@ +// file : odb/mysql/enums.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_ENUMS_HXX +#define ODB_MYSQL_ENUMS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t +#include <cstring> // std::memmove +#include <cassert> + +#include <odb/details/buffer.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/traits.hxx> +#include <odb/mysql/version.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + // Common interface for working with the dual enum image (integer or + // string). Used by the generated code and query machinery. + // + // We use overload resolution instead of template specialization to + // avoid having to specify the image type explicitly. + // + struct LIBODB_MYSQL_EXPORT enum_traits + { + // + // Integer image. + // + static void + bind (MYSQL_BIND& b, unsigned short& i, unsigned long&, my_bool* is_null) + { + b.buffer_type = MYSQL_TYPE_SHORT; + b.is_unsigned = 1; + b.buffer = &i; + b.is_null = is_null; + } + + static bool + grow (unsigned short&, unsigned long&) + { + return false; + } + + template <typename T> + static bool + set_image (unsigned short& i, unsigned long&, bool& is_null, const T& v) + { + value_traits<T, id_enum>::set_image (i, is_null, v); + return false; + } + + template <typename T> + static void + set_value (T& v, unsigned short i, unsigned long, bool is_null) + { + value_traits<T, id_enum>::set_value (v, i, is_null); + } + + // + // String image. + // + + static void + bind (MYSQL_BIND& b, + details::buffer& i, + unsigned long& size, + my_bool* is_null) + { + b.buffer_type = MYSQL_TYPE_STRING; + b.buffer = i.data (); + b.buffer_length = static_cast<unsigned long> (i.capacity ()); + b.length = &size; + b.is_null = is_null; + } + + static bool + grow (details::buffer& i, unsigned long& size) + { + i.capacity (size); + return true; + } + + template <typename T> + static bool + set_image (details::buffer& i, + unsigned long& size, + bool& is_null, + const T& v) + { + std::size_t n (0), c (i.capacity ()); + value_traits<T, id_enum>::set_image (i, n, is_null, v); + size = static_cast<unsigned long> (n); + return c != i.capacity (); + } + + template <typename T> + static void + set_value (T& v, + const details::buffer& i, + unsigned long size, + bool is_null) + { + // The buffer has the following content: "<num> <str>". Get rid of + // the numeric value so that we have "<str>". For more information + // why it is done this way, see mysql::object_columns class in the + // ODB compiler. + // + strip_value (i, size); + + value_traits<T, id_enum>::set_value (v, i, size, is_null); + } + + private: + static void + strip_value (const details::buffer& i, unsigned long& size); + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_ENUMS_HXX diff --git a/libodb-mysql/odb/mysql/error.cxx b/libodb-mysql/odb/mysql/error.cxx new file mode 100644 index 0000000..26380ec --- /dev/null +++ b/libodb-mysql/odb/mysql/error.cxx @@ -0,0 +1,76 @@ +// file : odb/mysql/error.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <new> // std::bad_alloc +#include <string> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/exceptions.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + static void + translate_error (connection& c, + unsigned int e, + const string& sqlstate, + string msg) + { + switch (e) + { + case CR_OUT_OF_MEMORY: + { + throw bad_alloc (); + } + case ER_LOCK_DEADLOCK: + { + throw deadlock (); + } + case CR_SERVER_LOST: + case CR_SERVER_GONE_ERROR: + { + c.mark_failed (); + throw connection_lost (); + } + case CR_UNKNOWN_ERROR: + { + c.mark_failed (); + } + // Fall through. + default: + { + // Get rid of a trailing newline if there is one. + // + string::size_type n (msg.size ()); + if (n != 0 && msg[n - 1] == '\n') + msg.resize (n - 1); + + throw database_exception (e, sqlstate, msg); + } + } + } + + void + translate_error (connection& c) + { + MYSQL* h (c.handle ()); + translate_error (c, + mysql_errno (h), + mysql_sqlstate (h), + mysql_error (h)); + } + + void + translate_error (connection& c, MYSQL_STMT* h) + { + translate_error (c, + mysql_stmt_errno (h), + mysql_stmt_sqlstate (h), + mysql_stmt_error (h)); + } + } +} diff --git a/libodb-mysql/odb/mysql/error.hxx b/libodb-mysql/odb/mysql/error.hxx new file mode 100644 index 0000000..0893841 --- /dev/null +++ b/libodb-mysql/odb/mysql/error.hxx @@ -0,0 +1,34 @@ +// file : odb/mysql/error.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_ERROR_HXX +#define ODB_MYSQL_ERROR_HXX + +#include <odb/pre.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class connection; + + // Translate MySQL error and throw an appropriate exception. Also, + // if the error code indicates that the connection is no longer + // usable, mark it as failed. + // + LIBODB_MYSQL_EXPORT void + translate_error (connection&); + + LIBODB_MYSQL_EXPORT void + translate_error (connection&, MYSQL_STMT*); + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_ERROR_HXX diff --git a/libodb-mysql/odb/mysql/exceptions.cxx b/libodb-mysql/odb/mysql/exceptions.cxx new file mode 100644 index 0000000..b15d316 --- /dev/null +++ b/libodb-mysql/odb/mysql/exceptions.cxx @@ -0,0 +1,71 @@ +// file : odb/mysql/exceptions.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <sstream> + +#include <odb/mysql/exceptions.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + // + // database_exception + // + + database_exception:: + ~database_exception () ODB_NOTHROW_NOEXCEPT + { + } + + database_exception:: + database_exception (unsigned int e, const string& s, const string& m) + : error_ (e), sqlstate_ (s), message_ (m) + { + ostringstream ostr; + ostr << error_ << " (" << sqlstate_ << "): " << message_; + what_ = ostr.str (); + } + + const char* database_exception:: + what () const ODB_NOTHROW_NOEXCEPT + { + return what_.c_str (); + } + + database_exception* database_exception:: + clone () const + { + return new database_exception (*this); + } + + // + // cli_exception + // + + cli_exception:: + cli_exception (const std::string& what) + : what_ (what) + { + } + + cli_exception:: + ~cli_exception () ODB_NOTHROW_NOEXCEPT + { + } + + const char* cli_exception:: + what () const ODB_NOTHROW_NOEXCEPT + { + return what_.c_str (); + } + + cli_exception* cli_exception:: + clone () const + { + return new cli_exception (*this); + } + } +} diff --git a/libodb-mysql/odb/mysql/exceptions.hxx b/libodb-mysql/odb/mysql/exceptions.hxx new file mode 100644 index 0000000..5e9f9f1 --- /dev/null +++ b/libodb-mysql/odb/mysql/exceptions.hxx @@ -0,0 +1,87 @@ +// file : odb/mysql/exceptions.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_EXCEPTIONS_HXX +#define ODB_MYSQL_EXCEPTIONS_HXX + +#include <odb/pre.hxx> + +#include <string> + +#include <odb/exceptions.hxx> +#include <odb/details/config.hxx> // ODB_NOTHROW_NOEXCEPT + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + struct LIBODB_MYSQL_EXPORT database_exception: odb::database_exception + { + database_exception (unsigned int, + const std::string& sqlstate, + const std::string& message); + + ~database_exception () ODB_NOTHROW_NOEXCEPT; + + unsigned int + error () const + { + return error_; + } + + const std::string& + sqlstate () const + { + return sqlstate_; + } + + const std::string& + message () const + { + return message_; + } + + virtual const char* + what () const ODB_NOTHROW_NOEXCEPT; + + virtual database_exception* + clone () const; + + private: + unsigned int error_; + std::string sqlstate_; + std::string message_; + std::string what_; + }; + + struct LIBODB_MYSQL_EXPORT cli_exception: odb::exception + { + cli_exception (const std::string& what); + ~cli_exception () ODB_NOTHROW_NOEXCEPT; + + virtual const char* + what () const ODB_NOTHROW_NOEXCEPT; + + virtual cli_exception* + clone () const; + + private: + std::string what_; + }; + + namespace core + { + using mysql::database_exception; + using mysql::cli_exception; + } + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_EXCEPTIONS_HXX diff --git a/libodb-mysql/odb/mysql/forward.hxx b/libodb-mysql/odb/mysql/forward.hxx new file mode 100644 index 0000000..243c94e --- /dev/null +++ b/libodb-mysql/odb/mysql/forward.hxx @@ -0,0 +1,91 @@ +// file : odb/mysql/forward.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_FORWARD_HXX +#define ODB_MYSQL_FORWARD_HXX + +#include <odb/pre.hxx> + +#include <odb/forward.hxx> + +namespace odb +{ + namespace mysql + { + namespace core + { + using namespace odb::common; + } + + // + // + class database; + class connection; + typedef details::shared_ptr<connection> connection_ptr; + class connection_factory; + class statement; + class transaction; + class tracer; + + namespace core + { + using mysql::database; + using mysql::connection; + using mysql::connection_ptr; + using mysql::transaction; + using mysql::statement; + } + + // Implementation details. + // + enum statement_kind + { + statement_select, + statement_insert, + statement_update, + statement_delete + }; + + class binding; + class select_statement; + + template <typename T> + class object_statements; + + template <typename T> + class polymorphic_root_object_statements; + + template <typename T> + class polymorphic_derived_object_statements; + + template <typename T> + class no_id_object_statements; + + template <typename T> + class view_statements; + + template <typename T> + class container_statements; + + template <typename T> + class smart_container_statements; + + template <typename T, typename ST> + class section_statements; + + class query_base; + } + + namespace details + { + template <> + struct counter_type<mysql::connection> + { + typedef shared_base counter; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_FORWARD_HXX diff --git a/libodb-mysql/odb/mysql/mysql-types.hxx b/libodb-mysql/odb/mysql/mysql-types.hxx new file mode 100644 index 0000000..af7135b --- /dev/null +++ b/libodb-mysql/odb/mysql/mysql-types.hxx @@ -0,0 +1,42 @@ +// file : odb/mysql/mysql-types.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_MYSQL_TYPES_HXX +#define ODB_MYSQL_MYSQL_TYPES_HXX + +#include <odb/mysql/details/config.hxx> + +#include <odb/mysql/version.hxx> + +// Starting with 8.0.1 instead of my_bool MySQL uses bool directly. We keep +// using the alias for compatibility with previous versions. +// +#if !defined(LIBODB_MYSQL_MARIADB) && MYSQL_VERSION_ID >= 80001 +typedef bool my_bool; +#else +typedef char my_bool; +#endif + +// Starting with 8.0.11 MySQL renamed st_mysql_bind to MYSQL_BIND. +// +#if !defined(LIBODB_MYSQL_MARIADB) && MYSQL_VERSION_ID >= 80011 +struct MYSQL_BIND; +#else +typedef struct st_mysql_bind MYSQL_BIND; +#endif + +// MariaDB defines time types directly in mysql.h. Note that MariaDB is only +// supported by the build2 build so we include the header as <mysql/mysql.h> +// unconditionally. +// +#ifdef LIBODB_MYSQL_MARIADB +# include <mysql/mysql.h> +#else +# ifdef LIBODB_MYSQL_INCLUDE_SHORT +# include <mysql_time.h> +# else +# include <mysql/mysql_time.h> +# endif +#endif + +#endif // ODB_MYSQL_MYSQL_TYPES_HXX diff --git a/libodb-mysql/odb/mysql/mysql.hxx b/libodb-mysql/odb/mysql/mysql.hxx new file mode 100644 index 0000000..38fdd62 --- /dev/null +++ b/libodb-mysql/odb/mysql/mysql.hxx @@ -0,0 +1,31 @@ +// file : odb/mysql/mysql.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_MYSQL_HXX +#define ODB_MYSQL_MYSQL_HXX + +#include <odb/mysql/details/config.hxx> + +#include <odb/mysql/mysql-types.hxx> + +#ifdef _WIN32 +# ifndef NOMINMAX // No min and max macros. +# define NOMINMAX +# include <winsock2.h> +# undef NOMINMAX +# else +# include <winsock2.h> +# endif +#endif + +#ifdef LIBODB_MYSQL_INCLUDE_SHORT +# include <mysql.h> +# include <errmsg.h> +# include <mysqld_error.h> +#else +# include <mysql/mysql.h> +# include <mysql/errmsg.h> +# include <mysql/mysqld_error.h> +#endif + +#endif // ODB_MYSQL_MYSQL_HXX diff --git a/libodb-mysql/odb/mysql/no-id-object-result.hxx b/libodb-mysql/odb/mysql/no-id-object-result.hxx new file mode 100644 index 0000000..7a38120 --- /dev/null +++ b/libodb-mysql/odb/mysql/no-id-object-result.hxx @@ -0,0 +1,81 @@ +// file : odb/mysql/no-id-object-result.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_NO_ID_OBJECT_RESULT_HXX +#define ODB_MYSQL_NO_ID_OBJECT_RESULT_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/schema-version.hxx> +#include <odb/no-id-object-result.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> // query_base +#include <odb/mysql/statement.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class no_id_object_result_impl: public odb::no_id_object_result_impl<T> + { + public: + typedef odb::no_id_object_result_impl<T> base_type; + + typedef typename base_type::object_type object_type; + typedef typename base_type::pointer_type pointer_type; + + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename base_type::pointer_traits pointer_traits; + + typedef typename object_traits::statements_type statements_type; + + virtual + ~no_id_object_result_impl (); + + no_id_object_result_impl (const query_base&, + details::shared_ptr<select_statement>, + statements_type&, + const schema_version_migration*); + + virtual void + load (object_type&); + + virtual void + next (); + + virtual void + cache (); + + virtual std::size_t + size (); + + virtual void + invalidate (); + + using base_type::current; + + private: + void + fetch (); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + object_traits_calls<object_type> tc_; + std::size_t count_; + }; + } +} + +#include <odb/mysql/no-id-object-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_NO_ID_OBJECT_RESULT_HXX diff --git a/libodb-mysql/odb/mysql/no-id-object-result.txx b/libodb-mysql/odb/mysql/no-id-object-result.txx new file mode 100644 index 0000000..21168b9 --- /dev/null +++ b/libodb-mysql/odb/mysql/no-id-object-result.txx @@ -0,0 +1,178 @@ +// file : odb/mysql/no-id-object-result.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> // result_not_cached + +#include <odb/mysql/no-id-object-statements.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + no_id_object_result_impl<T>:: + ~no_id_object_result_impl () + { + if (!this->end_) + statement_->free_result (); + } + + template <typename T> + void no_id_object_result_impl<T>:: + invalidate () + { + if (!this->end_) + { + statement_->free_result (); + this->end_ = true; + } + + statement_.reset (); + } + + template <typename T> + no_id_object_result_impl<T>:: + no_id_object_result_impl (const query_base&, + details::shared_ptr<select_statement> statement, + statements_type& statements, + const schema_version_migration* svm) + : base_type (statements.connection ()), + statement_ (statement), + statements_ (statements), + tc_ (svm), + count_ (0) + { + } + + template <typename T> + void no_id_object_result_impl<T>:: + load (object_type& obj) + { + if (count_ > statement_->fetched ()) + fetch (); + + object_traits::callback (this->db_, obj, callback_event::pre_load); + tc_.init (obj, statements_.image (), &this->db_); + object_traits::callback (this->db_, obj, callback_event::post_load); + } + + template <typename T> + void no_id_object_result_impl<T>:: + next () + { + this->current (pointer_type ()); + + if (this->end_) + return; + + // If we are cached, simply increment the position and + // postpone the actual row fetching until later. This way + // if the same object is loaded in between iteration, the + // image won't be messed up. + // + count_++; + + if (statement_->cached ()) + this->end_ = count_ > statement_->result_size (); + else + fetch (); + + if (this->end_) + statement_->free_result (); + } + + template <typename T> + void no_id_object_result_impl<T>:: + fetch () + { + // If the result is cached, the image can grow between calls + // to fetch() as a result of other statements execution. + // + if (statement_->cached ()) + { + typename object_traits::image_type& im (statements_.image ()); + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + tc_.bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + } + } + + while (!this->end_ && count_ > statement_->fetched ()) + { + select_statement::result r (statement_->fetch ()); + + switch (r) + { + case select_statement::truncated: + { + // Don't re-fetch data we are skipping. + // + if (count_ != statement_->fetched ()) + continue; + + typename object_traits::image_type& im (statements_.image ()); + + if (tc_.grow (im, statements_.select_image_truncated ())) + im.version++; + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + tc_.bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + statement_->refetch (); + } + // Fall throught. + } + case select_statement::success: + { + break; + } + case select_statement::no_data: + { + this->end_ = true; + break; + } + } + } + } + + template <typename T> + void no_id_object_result_impl<T>:: + cache () + { + if (!this->end_ && !statement_->cached ()) + { + statement_->cache (); + + if (count_ == statement_->result_size ()) + { + statement_->free_result (); + count_++; // One past the result size. + this->end_ = true; + } + } + } + + template <typename T> + std::size_t no_id_object_result_impl<T>:: + size () + { + if (!this->end_) + { + if (!statement_->cached ()) + throw result_not_cached (); + + return statement_->result_size (); + } + else + return count_ - 1; // One past the result size. + } + } +} diff --git a/libodb-mysql/odb/mysql/no-id-object-statements.hxx b/libodb-mysql/odb/mysql/no-id-object-statements.hxx new file mode 100644 index 0000000..b554b72 --- /dev/null +++ b/libodb-mysql/odb/mysql/no-id-object-statements.hxx @@ -0,0 +1,135 @@ +// file : odb/mysql/no-id-object-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_NO_ID_OBJECT_STATEMENTS_HXX +#define ODB_MYSQL_NO_ID_OBJECT_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/traits.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/binding.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/statements-base.hxx> + +namespace odb +{ + namespace mysql + { + // + // Implementation for objects without object id. + // + + template <typename T> + class no_id_object_statements: public statements_base + { + public: + typedef T object_type; + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename object_traits::pointer_type pointer_type; + typedef typename object_traits::image_type image_type; + + typedef mysql::insert_statement insert_statement_type; + + public: + no_id_object_statements (connection_type&); + + virtual + ~no_id_object_statements (); + + // Object image. + // + image_type& + image () {return image_;} + + // Insert binding. + // + std::size_t + insert_image_version () const { return insert_image_version_;} + + void + insert_image_version (std::size_t v) {insert_image_version_ = v;} + + binding& + insert_image_binding () {return insert_image_binding_;} + + // Select binding (needed for query support). + // + std::size_t + select_image_version () const { return select_image_version_;} + + void + select_image_version (std::size_t v) {select_image_version_ = v;} + + binding& + select_image_binding () {return select_image_binding_;} + + my_bool* + select_image_truncated () {return select_image_truncated_;} + + // Statements. + // + insert_statement_type& + persist_statement () + { + if (persist_ == 0) + persist_.reset ( + new (details::shared) insert_statement_type ( + conn_, + object_traits::persist_statement, + object_traits::versioned, // Process if versioned. + insert_image_binding_, + 0, + false)); + + return *persist_; + } + + public: + // select = total + // insert = total - inverse; inverse == 0 for object without id + // + static const std::size_t select_column_count = + object_traits::column_count; + + static const std::size_t insert_column_count = + object_traits::column_count; + + private: + no_id_object_statements (const no_id_object_statements&); + no_id_object_statements& operator= (const no_id_object_statements&); + + private: + image_type image_; + + // Select binding. + // + std::size_t select_image_version_; + binding select_image_binding_; + MYSQL_BIND select_image_bind_[select_column_count]; + my_bool select_image_truncated_[select_column_count]; + + // Insert binding. + // + std::size_t insert_image_version_; + binding insert_image_binding_; + MYSQL_BIND insert_image_bind_[insert_column_count]; + + details::shared_ptr<insert_statement_type> persist_; + }; + } +} + +#include <odb/mysql/no-id-object-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_NO_ID_OBJECT_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/no-id-object-statements.txx b/libodb-mysql/odb/mysql/no-id-object-statements.txx new file mode 100644 index 0000000..5917461 --- /dev/null +++ b/libodb-mysql/odb/mysql/no-id-object-statements.txx @@ -0,0 +1,36 @@ +// file : odb/mysql/no-id-object-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::memset + +namespace odb +{ + namespace mysql + { + template <typename T> + no_id_object_statements<T>:: + ~no_id_object_statements () + { + } + + template <typename T> + no_id_object_statements<T>:: + no_id_object_statements (connection_type& conn) + : statements_base (conn), + select_image_binding_ (select_image_bind_, select_column_count), + insert_image_binding_ (insert_image_bind_, insert_column_count) + { + image_.version = 0; + select_image_version_ = 0; + insert_image_version_ = 0; + + std::memset (insert_image_bind_, 0, sizeof (insert_image_bind_)); + std::memset (select_image_bind_, 0, sizeof (select_image_bind_)); + std::memset ( + select_image_truncated_, 0, sizeof (select_image_truncated_)); + + for (std::size_t i (0); i < select_column_count; ++i) + select_image_bind_[i].error = select_image_truncated_ + i; + } + } +} diff --git a/libodb-mysql/odb/mysql/polymorphic-object-result.hxx b/libodb-mysql/odb/mysql/polymorphic-object-result.hxx new file mode 100644 index 0000000..1ccc313 --- /dev/null +++ b/libodb-mysql/odb/mysql/polymorphic-object-result.hxx @@ -0,0 +1,94 @@ +// file : odb/mysql/polymorphic-object-result.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX +#define ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/schema-version.hxx> +#include <odb/polymorphic-object-result.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> // query_base +#include <odb/mysql/statement.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class polymorphic_object_result_impl: + public odb::polymorphic_object_result_impl<T> + { + public: + typedef odb::polymorphic_object_result_impl<T> base_type; + + typedef typename base_type::id_type id_type; + typedef typename base_type::object_type object_type; + typedef typename base_type::pointer_type pointer_type; + + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename base_type::pointer_traits pointer_traits; + + typedef typename base_type::root_type root_type; + typedef typename base_type::discriminator_type discriminator_type; + + typedef object_traits_impl<root_type, id_mysql> root_traits; + + typedef typename object_traits::statements_type statements_type; + + virtual + ~polymorphic_object_result_impl (); + + polymorphic_object_result_impl (const query_base&, + details::shared_ptr<select_statement>, + statements_type&, + const schema_version_migration*); + + virtual void + load (object_type*, bool fetch); + + virtual id_type + load_id (); + + virtual discriminator_type + load_discriminator (); + + virtual void + next (); + + virtual void + cache (); + + virtual std::size_t + size (); + + virtual void + invalidate (); + + using base_type::current; + + private: + void + fetch (bool next = true); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + object_traits_calls<object_type> tc_; + std::size_t count_; + }; + } +} + +#include <odb/mysql/polymorphic-object-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX diff --git a/libodb-mysql/odb/mysql/polymorphic-object-result.txx b/libodb-mysql/odb/mysql/polymorphic-object-result.txx new file mode 100644 index 0000000..e587f6f --- /dev/null +++ b/libodb-mysql/odb/mysql/polymorphic-object-result.txx @@ -0,0 +1,370 @@ +// file : odb/mysql/polymorphic-object-result.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cassert> + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> // result_not_cached + +#include <odb/mysql/polymorphic-object-statements.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + polymorphic_object_result_impl<T>:: + ~polymorphic_object_result_impl () + { + if (!this->end_) + statement_->free_result (); + } + + template <typename T> + void polymorphic_object_result_impl<T>:: + invalidate () + { + if (!this->end_) + { + statement_->free_result (); + this->end_ = true; + } + + statement_.reset (); + } + + template <typename T> + polymorphic_object_result_impl<T>:: + polymorphic_object_result_impl (const query_base&, + details::shared_ptr<select_statement> st, + statements_type& sts, + const schema_version_migration* svm) + : base_type (sts.connection ()), + statement_ (st), + statements_ (sts), + tc_ (svm), + count_ (0) + { + } + + template <typename T> + void polymorphic_object_result_impl<T>:: + load (object_type* pobj, bool f) + { + if (count_ > statement_->fetched ()) + fetch (); + else if (f && statement_->cached ()) + { + // We have to re-load the image in case it has been overwritten + // between the last time we fetched and this call to load(). + // + fetch (false); + } + + typename statements_type::root_statements_type& rsts ( + statements_.root_statements ()); + + // This is a top-level call so the statements cannot be locked. + // + assert (!rsts.locked ()); + typename statements_type::auto_lock l (rsts); + + typename object_traits::image_type& i (statements_.image ()); + typename root_traits::image_type& ri (rsts.image ()); + + id_type id (root_traits::id (ri)); + + // Determine this object's dynamic type. + // + typedef typename root_traits::info_type info_type; + discriminator_type d (root_traits::discriminator (ri)); + discriminator_type disc (d); + + // Use the polymorphic_info() helper to get concrete_info if + // object_type is concrete and NULL if it is abstract. + // + const info_type* spi (polymorphic_info (object_traits::info)); + const info_type& pi ( + spi != 0 && spi->discriminator == d + ? *spi + : root_traits::map->find (d)); + + typedef typename root_traits::pointer_type root_pointer_type; + typedef typename root_traits::pointer_traits root_pointer_traits; + + typename object_traits::pointer_cache_traits::insert_guard ig; + + if (pobj == 0) + { + // Need to create a new instance of the dynamic type. + // + root_pointer_type rp (pi.create ()); + pointer_type p ( + root_pointer_traits::template static_pointer_cast<object_type> (rp)); + + // Insert it as a root pointer (for non-unique pointers, rp should + // still be valid and for unique pointers this is a no-op). + // + ig.reset ( + object_traits::pointer_cache_traits::insert (this->db_, id, rp)); + + pobj = &pointer_traits::get_ref (p); + current (p); + } + else + { + // We are loading into an existing instance. If the static and + // dynamic types differ, then make sure the instance is at least + // of the dynamic type. + // + if (&pi != &object_traits::info) + { + const info_type& dpi (root_traits::map->find (typeid (*pobj))); + + if (&dpi != &pi && dpi.derived (pi)) + throw object_not_persistent (); // @@ type_mismatch ? + } + } + + callback_event ce (callback_event::pre_load); + pi.dispatch (info_type::call_callback, this->db_, pobj, &ce); + + tc_.init (*pobj, i, &this->db_); + + // Initialize the id image and binding and load the rest of the object + // (containers, dynamic part, etc). + // + typename object_traits::id_image_type& idi (statements_.id_image ()); + root_traits::init (idi, id); + + binding& idb (statements_.id_image_binding ()); + if (idi.version != statements_.id_image_version () || idb.version == 0) + { + object_traits::bind (idb.bind, idi); + statements_.id_image_version (idi.version); + idb.version++; + } + + tc_.load_ (statements_, *pobj, false); + + // Load the dynamic part of the object unless static and dynamic + // types are the same. + // + if (&pi != &object_traits::info) + { + std::size_t d (object_traits::depth); + pi.dispatch (info_type::call_load, this->db_, pobj, &d); + }; + + rsts.load_delayed (tc_.version ()); + l.unlock (); + + ce = callback_event::post_load; + pi.dispatch (info_type::call_callback, this->db_, pobj, &ce); + object_traits::pointer_cache_traits::load (ig.position ()); + ig.release (); + } + + template <typename T> + typename polymorphic_object_result_impl<T>::id_type + polymorphic_object_result_impl<T>:: + load_id () + { + if (count_ > statement_->fetched ()) + fetch (); + else if (statement_->cached ()) + { + // We have to re-load the image in case it has been overwritten + // between the last time we fetched and this call to load_id(). + // + fetch (false); + } + + return root_traits::id (statements_.root_statements ().image ()); + } + + template <typename T> + typename polymorphic_object_result_impl<T>::discriminator_type + polymorphic_object_result_impl<T>:: + load_discriminator () + { + if (count_ > statement_->fetched ()) + fetch (); + else if (statement_->cached ()) + { + // We have to re-load the image in case it has been overwritten + // between the last time we fetched and this call to + // load_discriminator(). + // + fetch (false); + } + + return root_traits::discriminator ( + statements_.root_statements ().image ()); + } + + template <typename T> + void polymorphic_object_result_impl<T>:: + next () + { + this->current (pointer_type ()); + + if (this->end_) + return; + + // If we are cached, simply increment the position and + // postpone the actual row fetching until later. This way + // if the same object is loaded in between iteration, the + // image won't be messed up. + // + count_++; + + if (statement_->cached ()) + this->end_ = count_ > statement_->result_size (); + else + fetch (); + + if (this->end_) + statement_->free_result (); + } + + template <typename T, typename R> + struct polymorphic_image_rebind + { + // Derived type version. + // + typedef object_traits_impl<T, id_mysql> traits; + + static bool + rebind (typename traits::statements_type& sts, + const schema_version_migration* svm) + { + typename traits::image_type& im (sts.image ()); + + if (traits::check_version (sts.select_image_versions (), im)) + { + binding& b (sts.select_image_binding (traits::depth)); + object_traits_calls<T> tc (svm); + tc.bind (b.bind, 0, 0, im, statement_select); + traits::update_version ( + sts.select_image_versions (), im, sts.select_image_bindings ()); + return true; + } + + return false; + } + }; + + template <typename R> + struct polymorphic_image_rebind<R, R> + { + // Root type version. + // + typedef object_traits_impl<R, id_mysql> traits; + + static bool + rebind (typename traits::statements_type& sts, + const schema_version_migration* svm) + { + typename traits::image_type& im (sts.image ()); + + if (im.version != sts.select_image_version ()) + { + binding& b (sts.select_image_binding ()); + object_traits_calls<R> tc (svm); + tc.bind (b.bind, im, statement_select); + sts.select_image_version (im.version); + b.version++; + return true; + } + + return false; + } + }; + + template <typename T> + void polymorphic_object_result_impl<T>:: + fetch (bool next) + { + typedef polymorphic_image_rebind<object_type, root_type> image_rebind; + + // If the result is cached, the image can grow between calls + // to fetch() as a result of other statements execution. + // + if (statement_->cached ()) + image_rebind::rebind (statements_, tc_.version ()); + + while (!this->end_ && (!next || count_ > statement_->fetched ())) + { + select_statement::result r (statement_->fetch (next)); + + switch (r) + { + case select_statement::truncated: + { + // Don't re-fetch data we are skipping. + // + if (next && count_ != statement_->fetched ()) + continue; + + typename object_traits::image_type& im (statements_.image ()); + + if (tc_.grow (im, statements_.select_image_truncated ())) + im.version++; + + if (image_rebind::rebind (statements_, tc_.version ())) + statement_->refetch (); + + // Fall throught. + } + case select_statement::success: + { + break; + } + case select_statement::no_data: + { + this->end_ = true; + break; + } + } + + // If we are refetching the current row, then we are done. + // + if (!next) + break; + } + } + + template <typename T> + void polymorphic_object_result_impl<T>:: + cache () + { + if (!this->end_ && !statement_->cached ()) + { + statement_->cache (); + + if (count_ == statement_->result_size ()) + { + statement_->free_result (); + count_++; // One past the result size. + this->end_ = true; + } + } + } + + template <typename T> + std::size_t polymorphic_object_result_impl<T>:: + size () + { + if (!this->end_) + { + if (!statement_->cached ()) + throw result_not_cached (); + + return statement_->result_size (); + } + else + return count_ - 1; // One past the result size. + } + } +} diff --git a/libodb-mysql/odb/mysql/polymorphic-object-statements.hxx b/libodb-mysql/odb/mysql/polymorphic-object-statements.hxx new file mode 100644 index 0000000..0eacac4 --- /dev/null +++ b/libodb-mysql/odb/mysql/polymorphic-object-statements.hxx @@ -0,0 +1,474 @@ +// file : odb/mysql/polymorphic-object-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_POLYMORPHIC_OBJECT_STATEMENTS_HXX +#define ODB_MYSQL_POLYMORPHIC_OBJECT_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/traits.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/binding.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/statements-base.hxx> +#include <odb/mysql/simple-object-statements.hxx> + +namespace odb +{ + namespace mysql + { + // + // Implementation for polymorphic objects. + // + + template <typename T> + class polymorphic_root_object_statements: public object_statements<T> + { + public: + typedef typename object_statements<T>::connection_type connection_type; + typedef typename object_statements<T>::object_traits object_traits; + typedef typename object_statements<T>::id_image_type id_image_type; + + typedef + typename object_traits::discriminator_image_type + discriminator_image_type; + + typedef + typename object_statements<T>::select_statement_type + select_statement_type; + + public: + // Interface compatibility with derived_object_statements. + // + typedef polymorphic_root_object_statements root_statements_type; + + root_statements_type& + root_statements () + { + return *this; + } + + public: + // Discriminator binding. + // + discriminator_image_type& + discriminator_image () {return discriminator_image_;} + + std::size_t + discriminator_image_version () const + {return discriminator_image_version_;} + + void + discriminator_image_version (std::size_t v) + {discriminator_image_version_ = v;} + + binding& + discriminator_image_binding () {return discriminator_image_binding_;} + + my_bool* + discriminator_image_truncated () {return discriminator_image_truncated_;} + + // Id binding for discriminator retrieval. + // + id_image_type& + discriminator_id_image () {return discriminator_id_image_;} + + std::size_t + discriminator_id_image_version () const + {return discriminator_id_image_version_;} + + void + discriminator_id_image_version (std::size_t v) + {discriminator_id_image_version_ = v;} + + binding& + discriminator_id_image_binding () + {return discriminator_id_image_binding_;} + + // + // + select_statement_type& + find_discriminator_statement () + { + if (find_discriminator_ == 0) + find_discriminator_.reset ( + new (details::shared) select_statement_type ( + this->conn_, + object_traits::find_discriminator_statement, + false, // Doesn't need to be processed. + false, // Don't optimize. + discriminator_id_image_binding_, + discriminator_image_binding_, + false)); + + return *find_discriminator_; + } + + public: + polymorphic_root_object_statements (connection_type&); + + virtual + ~polymorphic_root_object_statements (); + + // Static "override" (statements type). + // + void + load_delayed (const schema_version_migration* svm) + { + assert (this->locked ()); + + if (!this->delayed_.empty ()) + this->template load_delayed_<polymorphic_root_object_statements> ( + svm); + } + + public: + static const std::size_t id_column_count = + object_statements<T>::id_column_count; + + static const std::size_t discriminator_column_count = + object_traits::discriminator_column_count; + + static const std::size_t managed_optimistic_column_count = + object_traits::managed_optimistic_column_count; + + private: + // Discriminator image. + // + discriminator_image_type discriminator_image_; + std::size_t discriminator_image_version_; + binding discriminator_image_binding_; + MYSQL_BIND discriminator_image_bind_[discriminator_column_count + + managed_optimistic_column_count]; + my_bool discriminator_image_truncated_[discriminator_column_count + + managed_optimistic_column_count]; + + // Id image for discriminator retrieval (only used as a parameter). + // + id_image_type discriminator_id_image_; + std::size_t discriminator_id_image_version_; + binding discriminator_id_image_binding_; + MYSQL_BIND discriminator_id_image_bind_[id_column_count]; + + details::shared_ptr<select_statement_type> find_discriminator_; + }; + + template <typename T> + class polymorphic_derived_object_statements: public statements_base + { + public: + typedef T object_type; + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename object_traits::id_type id_type; + typedef typename object_traits::pointer_type pointer_type; + typedef typename object_traits::id_image_type id_image_type; + typedef typename object_traits::image_type image_type; + + typedef typename object_traits::root_type root_type; + typedef + polymorphic_root_object_statements<root_type> + root_statements_type; + + typedef typename object_traits::base_type base_type; + typedef + typename object_traits::base_traits::statements_type + base_statements_type; + + typedef + typename object_traits::extra_statement_cache_type + extra_statement_cache_type; + + typedef mysql::insert_statement insert_statement_type; + typedef mysql::select_statement select_statement_type; + typedef mysql::update_statement update_statement_type; + typedef mysql::delete_statement delete_statement_type; + + typedef typename root_statements_type::auto_lock auto_lock; + + public: + polymorphic_derived_object_statements (connection_type&); + + virtual + ~polymorphic_derived_object_statements (); + + public: + // Delayed loading. + // + static void + delayed_loader (odb::database&, + const id_type&, + root_type&, + const schema_version_migration*); + + public: + // Root and immediate base statements. + // + root_statements_type& + root_statements () + { + return root_statements_; + } + + base_statements_type& + base_statements () + { + return base_statements_; + } + + public: + // Object image. + // + image_type& + image () + { + return image_; + } + + // Insert binding. + // + std::size_t + insert_image_version () const { return insert_image_version_;} + + void + insert_image_version (std::size_t v) {insert_image_version_ = v;} + + std::size_t + insert_id_binding_version () const { return insert_id_binding_version_;} + + void + insert_id_binding_version (std::size_t v) {insert_id_binding_version_ = v;} + + binding& + insert_image_binding () {return insert_image_binding_;} + + // Update binding. + // + std::size_t + update_image_version () const { return update_image_version_;} + + void + update_image_version (std::size_t v) {update_image_version_ = v;} + + std::size_t + update_id_binding_version () const { return update_id_binding_version_;} + + void + update_id_binding_version (std::size_t v) {update_id_binding_version_ = v;} + + binding& + update_image_binding () {return update_image_binding_;} + + // Select binding. + // + std::size_t* + select_image_versions () { return select_image_versions_;} + + binding* + select_image_bindings () {return select_image_bindings_;} + + binding& + select_image_binding (std::size_t d) + { + return select_image_bindings_[object_traits::depth - d]; + } + + my_bool* + select_image_truncated () {return select_image_truncated_;} + + // Object id binding (comes from the root statements). + // + id_image_type& + id_image () {return root_statements_.id_image ();} + + std::size_t + id_image_version () const {return root_statements_.id_image_version ();} + + void + id_image_version (std::size_t v) {root_statements_.id_image_version (v);} + + binding& + id_image_binding () {return root_statements_.id_image_binding ();} + + binding& + optimistic_id_image_binding () { + return root_statements_.optimistic_id_image_binding ();} + + // Statements. + // + insert_statement_type& + persist_statement () + { + if (persist_ == 0) + persist_.reset ( + new (details::shared) insert_statement_type ( + conn_, + object_traits::persist_statement, + object_traits::versioned, // Process if versioned. + insert_image_binding_, + 0, + false)); + + return *persist_; + } + + select_statement_type& + find_statement (std::size_t d) + { + std::size_t i (object_traits::depth - d); + details::shared_ptr<select_statement_type>& p (find_[i]); + + if (p == 0) + p.reset ( + new (details::shared) select_statement_type ( + conn_, + object_traits::find_statements[i], + object_traits::versioned, // Process if versioned. + false, // Don't optimize. + root_statements_.id_image_binding (), + select_image_bindings_[i], + false)); + + return *p; + } + + update_statement_type& + update_statement () + { + if (update_ == 0) + update_.reset ( + new (details::shared) update_statement_type ( + conn_, + object_traits::update_statement, + object_traits::versioned, // Process if versioned. + update_image_binding_, + false)); + + return *update_; + } + + delete_statement_type& + erase_statement () + { + if (erase_ == 0) + erase_.reset ( + new (details::shared) delete_statement_type ( + conn_, + object_traits::erase_statement, + root_statements_.id_image_binding (), + false)); + + return *erase_; + } + + // Extra (container, section) statement cache. + // + extra_statement_cache_type& + extra_statement_cache () + { + return extra_statement_cache_.get ( + conn_, + image_, + id_image (), + id_image_binding (), + &id_image_binding ()); // Note, not id+version. + } + + public: + // select = total - id - separate_load + base::select + // insert = total - inverse + // update = total - inverse - id - readonly - separate_update + // + static const std::size_t id_column_count = + object_traits::id_column_count; + + static const std::size_t select_column_count = + object_traits::column_count - + id_column_count - + object_traits::separate_load_column_count + + base_statements_type::select_column_count; + + static const std::size_t insert_column_count = + object_traits::column_count - + object_traits::inverse_column_count; + + static const std::size_t update_column_count = insert_column_count - + object_traits::id_column_count - + object_traits::readonly_column_count - + object_traits::separate_update_column_count; + + private: + polymorphic_derived_object_statements ( + const polymorphic_derived_object_statements&); + + polymorphic_derived_object_statements& + operator= (const polymorphic_derived_object_statements&); + + private: + root_statements_type& root_statements_; + base_statements_type& base_statements_; + + extra_statement_cache_ptr<extra_statement_cache_type, + image_type, + id_image_type> extra_statement_cache_; + + image_type image_; + + // Select binding. Here we are have an array of statements/bindings + // one for each depth. In other words, if we have classes root, base, + // and derived, then we have the following array of statements: + // + // [0] d + b + r + // [1] d + b + // [2] d + // + // Also, because we have a chain of images bound to these statements, + // we have an array of versions, one entry for each base plus one for + // our own image. + // + // A poly-abstract class only needs the first statement and in this + // case we have only one entry in the the bindings and statements + // arrays (but not versions; we still have a chain of images). + // + std::size_t select_image_versions_[object_traits::depth]; + binding select_image_bindings_[ + object_traits::abstract ? 1 : object_traits::depth]; + MYSQL_BIND select_image_bind_[select_column_count]; + my_bool select_image_truncated_[select_column_count]; + + // Insert binding. The id binding is copied from the hierarchy root. + // + std::size_t insert_image_version_; + std::size_t insert_id_binding_version_; + binding insert_image_binding_; + MYSQL_BIND insert_image_bind_[insert_column_count]; + + // Update binding. The id suffix binding is copied from the hierarchy + // root. + // + std::size_t update_image_version_; + std::size_t update_id_binding_version_; + binding update_image_binding_; + MYSQL_BIND update_image_bind_[update_column_count + id_column_count]; + + details::shared_ptr<insert_statement_type> persist_; + details::shared_ptr<select_statement_type> find_[ + object_traits::abstract ? 1 : object_traits::depth]; + details::shared_ptr<update_statement_type> update_; + details::shared_ptr<delete_statement_type> erase_; + }; + } +} + +#include <odb/mysql/polymorphic-object-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_POLYMORPHIC_OBJECT_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/polymorphic-object-statements.txx b/libodb-mysql/odb/mysql/polymorphic-object-statements.txx new file mode 100644 index 0000000..5899bc0 --- /dev/null +++ b/libodb-mysql/odb/mysql/polymorphic-object-statements.txx @@ -0,0 +1,145 @@ +// file : odb/mysql/polymorphic-object-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::memset + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> + +#include <odb/mysql/connection.hxx> +#include <odb/mysql/transaction.hxx> +#include <odb/mysql/statement-cache.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + // + // polymorphic_root_object_statements + // + + template <typename T> + polymorphic_root_object_statements<T>:: + ~polymorphic_root_object_statements () + { + } + + template <typename T> + polymorphic_root_object_statements<T>:: + polymorphic_root_object_statements (connection_type& conn) + : object_statements<T> (conn), + discriminator_image_binding_ (discriminator_image_bind_, + discriminator_column_count + + managed_optimistic_column_count), + discriminator_id_image_binding_ (discriminator_id_image_bind_, + id_column_count) + { + discriminator_image_.version = 0; + discriminator_id_image_.version = 0; + + discriminator_image_version_ = 0; + discriminator_id_image_version_ = 0; + + std::memset (discriminator_image_bind_, + 0, + sizeof (discriminator_image_bind_)); + std::memset (discriminator_id_image_bind_, + 0, + sizeof (discriminator_id_image_bind_)); + std::memset (discriminator_image_truncated_, + 0, + sizeof (discriminator_image_truncated_)); + + for (std::size_t i (0); + i < discriminator_column_count + managed_optimistic_column_count; + ++i) + { + discriminator_image_bind_[i].error = + discriminator_image_truncated_ + i; + } + } + + // + // polymorphic_derived_object_statements + // + + template <typename T> + polymorphic_derived_object_statements<T>:: + ~polymorphic_derived_object_statements () + { + } + + template <typename T> + polymorphic_derived_object_statements<T>:: + polymorphic_derived_object_statements (connection_type& conn) + : statements_base (conn), + root_statements_ (conn.statement_cache ().find_object<root_type> ()), + base_statements_ (conn.statement_cache ().find_object<base_type> ()), + insert_image_binding_ (insert_image_bind_, insert_column_count), + update_image_binding_ (update_image_bind_, + update_column_count + id_column_count) + { + image_.base = &base_statements_.image (); + image_.version = 0; + + for (std::size_t i (0); i < object_traits::depth; ++i) + select_image_versions_[i] = 0; + + for (std::size_t i (0); + i < (object_traits::abstract ? 1 : object_traits::depth); + ++i) + { + select_image_bindings_[i].bind = select_image_bind_; + select_image_bindings_[i].count = object_traits::find_column_counts[i]; + } + + insert_image_version_ = 0; + insert_id_binding_version_ = 0; + update_image_version_ = 0; + update_id_binding_version_ = 0; + + std::memset (insert_image_bind_, 0, sizeof (insert_image_bind_)); + std::memset (update_image_bind_, 0, sizeof (update_image_bind_)); + std::memset (select_image_bind_, 0, sizeof (select_image_bind_)); + std::memset ( + select_image_truncated_, 0, sizeof (select_image_truncated_)); + + for (std::size_t i (0); i < select_column_count; ++i) + select_image_bind_[i].error = select_image_truncated_ + i; + } + + template <typename T> + void polymorphic_derived_object_statements<T>:: + delayed_loader (odb::database& db, + const id_type& id, + root_type& robj, + const schema_version_migration* svm) + { + connection_type& conn (transaction::current ().connection (db)); + polymorphic_derived_object_statements& sts ( + conn.statement_cache ().find_object<object_type> ()); + root_statements_type& rsts (sts.root_statements ()); + + object_type& obj (static_cast<object_type&> (robj)); + + // The same code as in object_statements::load_delayed_(). + // + object_traits_calls<T> tc (svm); + + if (!tc.find_ (sts, &id)) + throw object_not_persistent (); + + object_traits::callback (db, obj, callback_event::pre_load); + tc.init (obj, sts.image (), &db); + tc.load_ (sts, obj, false); // Load containers, etc. + + rsts.load_delayed (svm); + + { + typename root_statements_type::auto_unlock u (rsts); + object_traits::callback (db, obj, callback_event::post_load); + } + } + } +} diff --git a/libodb-mysql/odb/mysql/prepared-query.cxx b/libodb-mysql/odb/mysql/prepared-query.cxx new file mode 100644 index 0000000..498d147 --- /dev/null +++ b/libodb-mysql/odb/mysql/prepared-query.cxx @@ -0,0 +1,15 @@ +// file : odb/mysql/prepared-query.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/prepared-query.hxx> + +namespace odb +{ + namespace mysql + { + prepared_query_impl:: + ~prepared_query_impl () + { + } + } +} diff --git a/libodb-mysql/odb/mysql/prepared-query.hxx b/libodb-mysql/odb/mysql/prepared-query.hxx new file mode 100644 index 0000000..d892fec --- /dev/null +++ b/libodb-mysql/odb/mysql/prepared-query.hxx @@ -0,0 +1,34 @@ +// file : odb/mysql/prepared-query.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_PREPARED_QUERY_HXX +#define ODB_MYSQL_PREPARED_QUERY_HXX + +#include <odb/pre.hxx> + +#include <odb/prepared-query.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/query.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + struct LIBODB_MYSQL_EXPORT prepared_query_impl: odb::prepared_query_impl + { + virtual + ~prepared_query_impl (); + + prepared_query_impl (odb::connection& c): odb::prepared_query_impl (c) {} + + mysql::query_base query; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_PREPARED_QUERY_HXX diff --git a/libodb-mysql/odb/mysql/query-const-expr.cxx b/libodb-mysql/odb/mysql/query-const-expr.cxx new file mode 100644 index 0000000..4c1dd37 --- /dev/null +++ b/libodb-mysql/odb/mysql/query-const-expr.cxx @@ -0,0 +1,14 @@ +// file : odb/mysql/query-const-expr.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/query.hxx> + +namespace odb +{ + namespace mysql + { + // Sun CC cannot handle this in query.cxx. + // + const query_base query_base::true_expr (true); + } +} diff --git a/libodb-mysql/odb/mysql/query-dynamic.cxx b/libodb-mysql/odb/mysql/query-dynamic.cxx new file mode 100644 index 0000000..89041ca --- /dev/null +++ b/libodb-mysql/odb/mysql/query-dynamic.cxx @@ -0,0 +1,157 @@ +// file : odb/mysql/query-dynamic.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstddef> // std::size_t + +#include <odb/mysql/query-dynamic.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + static const char* logic_operators[] = {") AND (", ") OR ("}; + static const char* comp_operators[] = {"=", "!=", "<", ">", "<=", ">="}; + + static void + translate (query_base& q, const odb::query_base& s, size_t p) + { + typedef odb::query_base::clause_part part; + + const part& x (s.clause ()[p]); + + switch (x.kind) + { + case part::kind_column: + { + const query_column_base* c ( + static_cast<const query_column_base*> ( + x.native_info[id_mysql].column)); + + q.append (c->table (), c->column ()); + break; + } + case part::kind_param_val: + case part::kind_param_ref: + { + const query_column_base* c ( + static_cast<const query_column_base*> ( + x.native_info[id_mysql].column)); + + query_param_factory f ( + reinterpret_cast<query_param_factory> ( + x.native_info[id_mysql].param_factory)); + + const odb::query_param* p ( + reinterpret_cast<const odb::query_param*> (x.data)); + + q.append (f (p->value, x.kind == part::kind_param_ref), + c->conversion ()); + break; + } + case part::kind_native: + { + q.append (s.strings ()[x.data]); + break; + } + case part::kind_true: + case part::kind_false: + { + q.append (x.kind == part::kind_true); + break; + } + case part::op_add: + { + translate (q, s, x.data); + translate (q, s, p - 1); + break; + } + case part::op_and: + case part::op_or: + { + q += "("; + translate (q, s, x.data); + q += logic_operators[x.kind - part::op_and]; + translate (q, s, p - 1); + q += ")"; + break; + } + case part::op_not: + { + q += "NOT ("; + translate (q, s, p - 1); + q += ")"; + break; + } + case part::op_null: + case part::op_not_null: + { + translate (q, s, p - 1); + q += (x.kind == part::op_null ? "IS NULL" : "IS NOT NULL"); + break; + } + case part::op_in: + { + if (x.data != 0) + { + size_t b (p - x.data); + + translate (q, s, b - 1); // column + q += "IN ("; + + for (size_t i (b); i != p; ++i) + { + if (i != b) + q += ","; + + translate (q, s, i); + } + + q += ")"; + } + else + q.append (false); + + break; + } + case part::op_like: + { + translate (q, s, p - 2); // column + q += "LIKE"; + translate (q, s, p - 1); // pattern + break; + } + case part::op_like_escape: + { + translate (q, s, p - 3); // column + q += "LIKE"; + translate (q, s, p - 2); // pattern + q += "ESCAPE"; + translate (q, s, p - 1); // escape + break; + } + case part::op_eq: + case part::op_ne: + case part::op_lt: + case part::op_gt: + case part::op_le: + case part::op_ge: + { + translate (q, s, x.data); + q += comp_operators[x.kind - part::op_eq]; + translate (q, s, p - 1); + break; + } + } + } + + query_base:: + query_base (const odb::query_base& q) + : binding_ (0, 0) + { + if (!q.empty ()) + translate (*this, q, q.clause ().size () - 1); + } + } +} diff --git a/libodb-mysql/odb/mysql/query-dynamic.hxx b/libodb-mysql/odb/mysql/query-dynamic.hxx new file mode 100644 index 0000000..f6a571f --- /dev/null +++ b/libodb-mysql/odb/mysql/query-dynamic.hxx @@ -0,0 +1,32 @@ +// file : odb/mysql/query-dynamic.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_QUERY_DYNAMIC_HXX +#define ODB_MYSQL_QUERY_DYNAMIC_HXX + +#include <odb/pre.hxx> + +#include <odb/query.hxx> +#include <odb/query-dynamic.hxx> + +#include <odb/mysql/query.hxx> + +namespace odb +{ + namespace mysql + { + typedef details::shared_ptr<query_param> (*query_param_factory) ( + const void* val, bool by_ref); + + template <typename T, database_type_id ID> + details::shared_ptr<query_param> + query_param_factory_impl (const void*, bool); + } +} + +#include <odb/mysql/query-dynamic.ixx> +#include <odb/mysql/query-dynamic.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_QUERY_DYNAMIC_HXX diff --git a/libodb-mysql/odb/mysql/query-dynamic.ixx b/libodb-mysql/odb/mysql/query-dynamic.ixx new file mode 100644 index 0000000..f9f3984 --- /dev/null +++ b/libodb-mysql/odb/mysql/query-dynamic.ixx @@ -0,0 +1,26 @@ +// file : odb/mysql/query-dynamic.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + // + // + template <typename T, database_type_id ID> + inline query_column<T, ID>:: + query_column (odb::query_column<T>& qc, + const char* table, const char* column, const char* conv) + : query_column_base (table, column, conv) + { + native_column_info& ci (qc.native_info[id_mysql]); + ci.column = static_cast<query_column_base*> (this); + + // For some reason GCC needs this statically-typed pointer in + // order to instantiate the functions. + // + query_param_factory f (&query_param_factory_impl<T, ID>); + ci.param_factory = reinterpret_cast<void*> (f); + } + } +} diff --git a/libodb-mysql/odb/mysql/query-dynamic.txx b/libodb-mysql/odb/mysql/query-dynamic.txx new file mode 100644 index 0000000..52e653b --- /dev/null +++ b/libodb-mysql/odb/mysql/query-dynamic.txx @@ -0,0 +1,20 @@ +// file : odb/mysql/query-dynamic.txx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + template <typename T, database_type_id ID> + details::shared_ptr<query_param> + query_param_factory_impl (const void* val, bool by_ref) + { + const T& v (*static_cast<const T*> (val)); + + return details::shared_ptr<query_param> ( + by_ref + ? new (details::shared) query_param_impl<T, ID> (ref_bind<T> (v)) + : new (details::shared) query_param_impl<T, ID> (val_bind<T> (v))); + } + } +} diff --git a/libodb-mysql/odb/mysql/query.cxx b/libodb-mysql/odb/mysql/query.cxx new file mode 100644 index 0000000..a420495 --- /dev/null +++ b/libodb-mysql/odb/mysql/query.cxx @@ -0,0 +1,346 @@ +// file : odb/mysql/query.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstddef> // std::size_t +#include <cstring> // std::memset + +#include <odb/mysql/query.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + // query_param + // + query_param:: + ~query_param () + { + } + + // query_base + // + query_base:: + query_base (const query_base& q) + : clause_ (q.clause_), + parameters_ (q.parameters_), + bind_ (q.bind_), + binding_ (0, 0) + { + // Here and below we want to maintain up to date binding info so + // that the call to parameters_binding() below is an immutable + // operation, provided the query does not have any by-reference + // parameters. This way a by-value-only query can be shared + // between multiple threads without the need for synchronization. + // + if (size_t n = bind_.size ()) + { + binding_.bind = &bind_[0]; + binding_.count = n; + binding_.version++; + } + } + + query_base& query_base:: + operator= (const query_base& q) + { + if (this != &q) + { + clause_ = q.clause_; + parameters_ = q.parameters_; + bind_ = q.bind_; + + size_t n (bind_.size ()); + binding_.bind = n != 0 ? &bind_[0] : 0; + binding_.count = n; + binding_.version++; + } + + return *this; + } + + query_base& query_base:: + operator+= (const query_base& q) + { + clause_.insert (clause_.end (), q.clause_.begin (), q.clause_.end ()); + + size_t n (bind_.size ()); + + parameters_.insert ( + parameters_.end (), q.parameters_.begin (), q.parameters_.end ()); + + bind_.insert ( + bind_.end (), q.bind_.begin (), q.bind_.end ()); + + if (n != bind_.size ()) + { + binding_.bind = &bind_[0]; + binding_.count = bind_.size (); + binding_.version++; + } + + return *this; + } + + void query_base:: + append (const string& q) + { + if (!clause_.empty () && + clause_.back ().kind == clause_part::kind_native) + { + string& s (clause_.back ().part); + + char first (!q.empty () ? q[0] : ' '); + char last (!s.empty () ? s[s.size () - 1] : ' '); + + // We don't want extra spaces after '(' as well as before ',' + // and ')'. + // + if (last != ' ' && last != '\n' && last != '(' && + first != ' ' && first != '\n' && first != ',' && first != ')') + s += ' '; + + s += q; + } + else + clause_.push_back (clause_part (clause_part::kind_native, q)); + } + + void query_base:: + append (const char* table, const char* column) + { + string s (table); + s += '.'; + s += column; + + clause_.push_back (clause_part (clause_part::kind_column, s)); + } + + void query_base:: + append (details::shared_ptr<query_param> p, const char* conv) + { + clause_.push_back (clause_part (clause_part::kind_param)); + + if (conv != 0) + clause_.back ().part = conv; + + parameters_.push_back (p); + bind_.push_back (MYSQL_BIND ()); + binding_.bind = &bind_[0]; + binding_.count = bind_.size (); + binding_.version++; + + MYSQL_BIND* b (&bind_.back ()); + memset (b, 0, sizeof (MYSQL_BIND)); + p->bind (b); + } + + void query_base:: + init_parameters () const + { + bool inc_ver (false); + + for (size_t i (0); i < parameters_.size (); ++i) + { + query_param& p (*parameters_[i]); + + if (p.reference ()) + { + if (p.init ()) + { + p.bind (&bind_[i]); + inc_ver = true; + } + } + } + + if (inc_ver) + binding_.version++; + } + + static bool + check_prefix (const string& s) + { + string::size_type n; + + // It is easier to compare to upper and lower-case versions + // rather than getting involved with the portable case- + // insensitive string comparison mess. + // + if (s.compare (0, (n = 5), "WHERE") == 0 || + s.compare (0, (n = 5), "where") == 0 || + s.compare (0, (n = 6), "SELECT") == 0 || + s.compare (0, (n = 6), "select") == 0 || + s.compare (0, (n = 8), "ORDER BY") == 0 || + s.compare (0, (n = 8), "order by") == 0 || + s.compare (0, (n = 8), "GROUP BY") == 0 || + s.compare (0, (n = 8), "group by") == 0 || + s.compare (0, (n = 6), "HAVING") == 0 || + s.compare (0, (n = 6), "having") == 0 || + s.compare (0, (n = 4), "CALL") == 0 || + s.compare (0, (n = 4), "call") == 0) + { + // It either has to be an exact match, or there should be + // a whitespace following the keyword. + // + if (s.size () == n || s[n] == ' ' || s[n] == '\n' || s[n] =='\t') + return true; + } + + return false; + } + + void query_base:: + optimize () + { + // Remove a single TRUE literal or one that is followe by one of + // the other clauses. This avoids useless WHERE clauses like + // + // WHERE TRUE GROUP BY foo + // + clause_type::iterator i (clause_.begin ()), e (clause_.end ()); + + if (i != e && i->kind == clause_part::kind_bool && i->bool_part) + { + clause_type::iterator j (i + 1); + + if (j == e || + (j->kind == clause_part::kind_native && check_prefix (j->part))) + clause_.erase (i); + } + } + + const char* query_base:: + clause_prefix () const + { + if (!clause_.empty ()) + { + const clause_part& p (clause_.front ()); + + if (p.kind == clause_part::kind_native && check_prefix (p.part)) + return ""; + + return "WHERE "; + } + + return ""; + } + + string query_base:: + clause () const + { + string r; + + for (clause_type::const_iterator i (clause_.begin ()), + end (clause_.end ()); + i != end; + ++i) + { + char last (!r.empty () ? r[r.size () - 1] : ' '); + + switch (i->kind) + { + case clause_part::kind_column: + { + if (last != ' ' && last != '\n' && last != '(') + r += ' '; + + r += i->part; + break; + } + case clause_part::kind_param: + { + if (last != ' ' && last != '\n' && last != '(') + r += ' '; + + // Add the conversion expression, if any. + // + string::size_type p (0); + if (!i->part.empty ()) + { + p = i->part.find ("(?)"); + r.append (i->part, 0, p); + } + + r += '?'; + + if (!i->part.empty ()) + r.append (i->part, p + 3, string::npos); + + break; + } + case clause_part::kind_native: + { + // We don't want extra spaces after '(' as well as before ',' + // and ')'. + // + const string& p (i->part); + char first (!p.empty () ? p[0] : ' '); + + if (last != ' ' && last != '\n' && last != '(' && + first != ' ' && first != '\n' && first != ',' && first != ')') + r += ' '; + + r += p; + break; + } + case clause_part::kind_bool: + { + if (last != ' ' && last != '\n' && last != '(') + r += ' '; + + r += i->bool_part ? "TRUE" : "FALSE"; + break; + } + } + } + + return clause_prefix () + r; + } + + query_base + operator&& (const query_base& x, const query_base& y) + { + // Optimize cases where one or both sides are constant truth. + // + bool xt (x.const_true ()), yt (y.const_true ()); + + if (xt && yt) + return x; + + if (xt) + return y; + + if (yt) + return x; + + query_base r ("("); + r += x; + r += ") AND ("; + r += y; + r += ")"; + return r; + } + + query_base + operator|| (const query_base& x, const query_base& y) + { + query_base r ("("); + r += x; + r += ") OR ("; + r += y; + r += ")"; + return r; + } + + query_base + operator! (const query_base& x) + { + query_base r ("NOT ("); + r += x; + r += ")"; + return r; + } + } +} diff --git a/libodb-mysql/odb/mysql/query.hxx b/libodb-mysql/odb/mysql/query.hxx new file mode 100644 index 0000000..d0972c9 --- /dev/null +++ b/libodb-mysql/odb/mysql/query.hxx @@ -0,0 +1,2277 @@ +// file : odb/mysql/query.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_QUERY_HXX +#define ODB_MYSQL_QUERY_HXX + +#include <odb/pre.hxx> + +#include <string> +#include <vector> +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> // odb::query_column +#include <odb/query.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/traits.hxx> +#include <odb/mysql/enum.hxx> +#include <odb/mysql/binding.hxx> + +#include <odb/details/buffer.hxx> +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/details/export.hxx> +#include <odb/mysql/details/conversion.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + struct val_bind + { + typedef const T& type; + + explicit + val_bind (type v): val (v) {} + + type val; + }; + + template <typename T, std::size_t N> + struct val_bind<T[N]> + { + typedef const T* type; + + explicit + val_bind (type v): val (v) {} + + type val; + }; + + template <typename T> + struct ref_bind + { + typedef const T& type; + + explicit + ref_bind (type r): ref (r) {} + + const void* + ptr () const {return &ref;} + + type ref; + }; + + template <typename T, std::size_t N> + struct ref_bind<T[N]> + { + typedef const T* type; + + explicit + ref_bind (type r): ref (r) {} + + // Allow implicit conversion from decayed ref_bind's. + // + ref_bind (ref_bind<T*> r): ref (r.ref) {} + ref_bind (ref_bind<const T*> r): ref (r.ref) {} + + const void* + ptr () const {return ref;} + + type ref; + }; + + template <typename T, database_type_id ID> + struct val_bind_typed: val_bind<T> + { + explicit + val_bind_typed (typename val_bind<T>::type v): val_bind<T> (v) {} + }; + + template <typename T, database_type_id ID> + struct ref_bind_typed: ref_bind<T> + { + explicit + ref_bind_typed (typename ref_bind<T>::type r): ref_bind<T> (r) {} + }; + + struct LIBODB_MYSQL_EXPORT query_param: details::shared_base + { + virtual + ~query_param (); + + bool + reference () const + { + return value_ != 0; + } + + virtual bool + init () = 0; + + virtual void + bind (MYSQL_BIND*) = 0; + + protected: + query_param (const void* value) : value_ (value) {} + + protected: + const void* value_; + }; + + // + // + template <typename T, database_type_id ID> + struct query_column; + + class LIBODB_MYSQL_EXPORT query_base + { + public: + struct clause_part + { + enum kind_type + { + kind_column, + kind_param, + kind_native, + kind_bool + }; + + clause_part (kind_type k): kind (k), bool_part (false) {} + clause_part (kind_type k, const std::string& p) + : kind (k), part (p), bool_part (false) {} + clause_part (bool p): kind (kind_bool), bool_part (p) {} + + kind_type kind; + std::string part; // If kind is param, then part is conversion expr. + bool bool_part; + }; + + query_base () + : binding_ (0, 0) + { + } + + // True or false literal. + // + explicit + query_base (bool v) + : binding_ (0, 0) + { + append (v); + } + + explicit + query_base (const char* native) + : binding_ (0, 0) + { + clause_.push_back (clause_part (clause_part::kind_native, native)); + } + + explicit + query_base (const std::string& native) + : binding_ (0, 0) + { + clause_.push_back (clause_part (clause_part::kind_native, native)); + } + + query_base (const char* table, const char* column) + : binding_ (0, 0) + { + append (table, column); + } + + template <typename T> + explicit + query_base (val_bind<T> v) + : binding_ (0, 0) + { + *this += v; + } + + template <typename T, database_type_id ID> + explicit + query_base (val_bind_typed<T, ID> v) + : binding_ (0, 0) + { + *this += v; + } + + template <typename T> + explicit + query_base (ref_bind<T> r) + : binding_ (0, 0) + { + *this += r; + } + + template <typename T, database_type_id ID> + explicit + query_base (ref_bind_typed<T, ID> r) + : binding_ (0, 0) + { + *this += r; + } + + template <database_type_id ID> + query_base (const query_column<bool, ID>&); + + // Translate common query representation to MySQL native. Defined + // in query-dynamic.cxx + // + query_base (const odb::query_base&); + + // Copy c-tor and assignment. + // + query_base (const query_base&); + + query_base& + operator= (const query_base&); + + public: + std::string + clause () const; + + const char* + clause_prefix () const; + + // Initialize the by-reference parameters from bound variables. + // + void + init_parameters () const; + + binding& + parameters_binding () const; + + public: + bool + empty () const + { + return clause_.empty (); + } + + static const query_base true_expr; + + bool + const_true () const + { + return clause_.size () == 1 && + clause_.front ().kind == clause_part::kind_bool && + clause_.front ().bool_part; + } + + void + optimize (); + + public: + template <typename T> + static val_bind<T> + _val (const T& x) + { + return val_bind<T> (x); + } + + template <database_type_id ID, typename T> + static val_bind_typed<T, ID> + _val (const T& x) + { + return val_bind_typed<T, ID> (x); + } + + template <typename T> + static ref_bind<T> + _ref (const T& x) + { + return ref_bind<T> (x); + } + + template <database_type_id ID, typename T> + static ref_bind_typed<T, ID> + _ref (const T& x) + { + return ref_bind_typed<T, ID> (x); + } + + // Some compilers (notably VC++), when deducing const T& from const + // array do not strip const from the array type. As a result, in the + // above signatures we get, for example, T = const char[4] instead + // of T = char[4], which is what we want. So to "fix" such compilers, + // we will have to provide the following specializations of the above + // functions. + // + template <typename T, std::size_t N> + static val_bind<T[N]> + _val (const T (&x) [N]) + { + return val_bind<T[N]> (x); + } + + template <database_type_id ID, typename T, std::size_t N> + static val_bind_typed<T[N], ID> + _val (const T (&x) [N]) + { + return val_bind_typed<T[N], ID> (x); + } + + template <typename T, std::size_t N> + static ref_bind<T[N]> + _ref (const T (&x) [N]) + { + return ref_bind<T[N]> (x); + } + + template <database_type_id ID, typename T, std::size_t N> + static ref_bind_typed<T[N], ID> + _ref (const T (&x) [N]) + { + return ref_bind_typed<T[N], ID> (x); + } + + public: + query_base& + operator+= (const query_base&); + + query_base& + operator+= (const std::string& q) + { + append (q); + return *this; + } + + template <typename T> + query_base& + operator+= (val_bind<T> v) + { + append<T, type_traits<T>::db_type_id> ( + v, details::conversion<T>::to ()); + return *this; + } + + template <typename T, database_type_id ID> + query_base& + operator+= (val_bind_typed<T, ID> v) + { + // We are not using default type_traits so no default conversion + // either. + // + append<T, ID> (v, 0); + return *this; + } + + template <typename T> + query_base& + operator+= (ref_bind<T> r) + { + append<T, type_traits<T>::db_type_id> ( + r, details::conversion<T>::to ()); + return *this; + } + + template <typename T, database_type_id ID> + query_base& + operator+= (ref_bind_typed<T, ID> r) + { + // We are not using default type_traits so no default conversion + // either. + // + append<T, ID> (r, 0); + return *this; + } + + // Implementation details. + // + public: + template <typename T, database_type_id ID> + void + append (val_bind<T>, const char* conv); + + template <typename T, database_type_id ID> + void + append (ref_bind<T>, const char* conv); + + void + append (details::shared_ptr<query_param>, const char* conv); + + void + append (bool v) + { + clause_.push_back (clause_part (v)); + } + + void + append (const std::string& native); + + void + append (const char* native) // Clashes with append(bool). + { + append (std::string (native)); + } + + void + append (const char* table, const char* column); + + private: + typedef std::vector<clause_part> clause_type; + typedef std::vector<details::shared_ptr<query_param> > parameters_type; + + clause_type clause_; + parameters_type parameters_; + mutable std::vector<MYSQL_BIND> bind_; + mutable binding binding_; + }; + + inline query_base + operator+ (const query_base& x, const query_base& y) + { + query_base r (x); + r += y; + return r; + } + + template <typename T> + inline query_base + operator+ (const query_base& q, val_bind<T> b) + { + query_base r (q); + r += b; + return r; + } + + template <typename T> + inline query_base + operator+ (val_bind<T> b, const query_base& q) + { + query_base r; + r += b; + r += q; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const query_base& q, val_bind_typed<T, ID> b) + { + query_base r (q); + r += b; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (val_bind_typed<T, ID> b, const query_base& q) + { + query_base r; + r += b; + r += q; + return r; + } + + template <typename T> + inline query_base + operator+ (const query_base& q, ref_bind<T> b) + { + query_base r (q); + r += b; + return r; + } + + template <typename T> + inline query_base + operator+ (ref_bind<T> b, const query_base& q) + { + query_base r; + r += b; + r += q; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const query_base& q, ref_bind_typed<T, ID> b) + { + query_base r (q); + r += b; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (ref_bind_typed<T, ID> b, const query_base& q) + { + query_base r; + r += b; + r += q; + return r; + } + + inline query_base + operator+ (const query_base& q, const std::string& s) + { + query_base r (q); + r += s; + return r; + } + + inline query_base + operator+ (const std::string& s, const query_base& q) + { + query_base r (s); + r += q; + return r; + } + + template <typename T> + inline query_base + operator+ (const std::string& s, val_bind<T> b) + { + query_base r (s); + r += b; + return r; + } + + template <typename T> + inline query_base + operator+ (val_bind<T> b, const std::string& s) + { + query_base r; + r += b; + r += s; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const std::string& s, val_bind_typed<T, ID> b) + { + query_base r (s); + r += b; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (val_bind_typed<T, ID> b, const std::string& s) + { + query_base r; + r += b; + r += s; + return r; + } + + template <typename T> + inline query_base + operator+ (const std::string& s, ref_bind<T> b) + { + query_base r (s); + r += b; + return r; + } + + template <typename T> + inline query_base + operator+ (ref_bind<T> b, const std::string& s) + { + query_base r; + r += b; + r += s; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const std::string& s, ref_bind_typed<T, ID> b) + { + query_base r (s); + r += b; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (ref_bind_typed<T, ID> b, const std::string& s) + { + query_base r; + r += b; + r += s; + return r; + } + + LIBODB_MYSQL_EXPORT query_base + operator&& (const query_base& x, const query_base& y); + + LIBODB_MYSQL_EXPORT query_base + operator|| (const query_base& x, const query_base& y); + + LIBODB_MYSQL_EXPORT query_base + operator! (const query_base& x); + + // query_column + // + struct LIBODB_MYSQL_EXPORT query_column_base + { + // Note that we keep shallow copies of the table, column, and conversion + // expression. The latter can be NULL. + // + query_column_base (const char* table, + const char* column, + const char* conv) + : table_ (table), column_ (column), conversion_ (conv) + { + } + + const char* + table () const + { + return table_; + } + + const char* + column () const + { + return column_; + } + + // Can be NULL. + // + const char* + conversion () const + { + return conversion_; + } + + protected: + const char* table_; + const char* column_; + const char* conversion_; + }; + + template <typename T, database_type_id ID> + struct query_column: query_column_base + { + typedef typename decay_traits<T>::type decayed_type; + + // Note that we keep shallow copies of the table, column, and conversion + // expression. The latter can be NULL. + // + query_column (const char* table, const char* column, const char* conv) + : query_column_base (table, column, conv) {} + + // Implementation is in query-dynamic.ixx. + // + query_column (odb::query_column<T>&, + const char* table, const char* column, const char* conv); + + // is_null, is_not_null + // + public: + query_base + is_null () const + { + query_base q (table_, column_); + q += "IS NULL"; + return q; + } + + query_base + is_not_null () const + { + query_base q (table_, column_); + q += "IS NOT NULL"; + return q; + } + + // in + // + public: + query_base + in (decayed_type, decayed_type) const; + + query_base + in (decayed_type, decayed_type, decayed_type) const; + + query_base + in (decayed_type, decayed_type, decayed_type, decayed_type) const; + + query_base + in (decayed_type, decayed_type, decayed_type, decayed_type, + decayed_type) const; + + template <typename I> + query_base + in_range (I begin, I end) const; + + // like + // + public: + query_base + like (decayed_type pattern) const + { + return like (val_bind<T> (pattern)); + } + + query_base + like (val_bind<T> pattern) const; + + template <typename T2> + query_base + like (val_bind<T2> pattern) const + { + return like (val_bind<T> (decayed_type (pattern.val))); + } + + query_base + like (ref_bind<T> pattern) const; + + query_base + like (decayed_type pattern, decayed_type escape) const + { + return like (val_bind<T> (pattern), escape); + } + + query_base + like (val_bind<T> pattern, decayed_type escape) const; + + template <typename T2> + query_base + like (val_bind<T2> pattern, decayed_type escape) const + { + return like (val_bind<T> (decayed_type (pattern.val)), escape); + } + + query_base + like (ref_bind<T> pattern, decayed_type escape) const; + + // = + // + public: + query_base + equal (decayed_type v) const + { + return equal (val_bind<T> (v)); + } + + query_base + equal (val_bind<T> v) const + { + query_base q (table_, column_); + q += "="; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + equal (val_bind<T2> v) const + { + return equal (val_bind<T> (decayed_type (v.val))); + } + + query_base + equal (ref_bind<T> r) const + { + query_base q (table_, column_); + q += "="; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator== (const query_column& c, decayed_type v) + { + return c.equal (v); + } + + friend query_base + operator== (decayed_type v, const query_column& c) + { + return c.equal (v); + } + + friend query_base + operator== (const query_column& c, val_bind<T> v) + { + return c.equal (v); + } + + friend query_base + operator== (val_bind<T> v, const query_column& c) + { + return c.equal (v); + } + + template <typename T2> + friend query_base + operator== (const query_column& c, val_bind<T2> v) + { + return c.equal (v); + } + + template <typename T2> + friend query_base + operator== (val_bind<T2> v, const query_column& c) + { + return c.equal (v); + } + + friend query_base + operator== (const query_column& c, ref_bind<T> r) + { + return c.equal (r); + } + + friend query_base + operator== (ref_bind<T> r, const query_column& c) + { + return c.equal (r); + } + + // != + // + public: + query_base + unequal (decayed_type v) const + { + return unequal (val_bind<T> (v)); + } + + query_base + unequal (val_bind<T> v) const + { + query_base q (table_, column_); + q += "!="; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + unequal (val_bind<T2> v) const + { + return unequal (val_bind<T> (decayed_type (v.val))); + } + + query_base + unequal (ref_bind<T> r) const + { + query_base q (table_, column_); + q += "!="; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator!= (const query_column& c, decayed_type v) + { + return c.unequal (v); + } + + friend query_base + operator!= (decayed_type v, const query_column& c) + { + return c.unequal (v); + } + + friend query_base + operator!= (const query_column& c, val_bind<T> v) + { + return c.unequal (v); + } + + friend query_base + operator!= (val_bind<T> v, const query_column& c) + { + return c.unequal (v); + } + + template <typename T2> + friend query_base + operator!= (const query_column& c, val_bind<T2> v) + { + return c.unequal (v); + } + + template <typename T2> + friend query_base + operator!= (val_bind<T2> v, const query_column& c) + { + return c.unequal (v); + } + + friend query_base + operator!= (const query_column& c, ref_bind<T> r) + { + return c.unequal (r); + } + + friend query_base + operator!= (ref_bind<T> r, const query_column& c) + { + return c.unequal (r); + } + + // < + // + public: + query_base + less (decayed_type v) const + { + return less (val_bind<T> (v)); + } + + query_base + less (val_bind<T> v) const + { + query_base q (table_, column_); + q += "<"; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + less (val_bind<T2> v) const + { + return less (val_bind<T> (decayed_type (v.val))); + } + + query_base + less (ref_bind<T> r) const + { + query_base q (table_, column_); + q += "<"; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator< (const query_column& c, decayed_type v) + { + return c.less (v); + } + + friend query_base + operator< (decayed_type v, const query_column& c) + { + return c.greater (v); + } + + friend query_base + operator< (const query_column& c, val_bind<T> v) + { + return c.less (v); + } + + friend query_base + operator< (val_bind<T> v, const query_column& c) + { + return c.greater (v); + } + + template <typename T2> + friend query_base + operator< (const query_column& c, val_bind<T2> v) + { + return c.less (v); + } + + template <typename T2> + friend query_base + operator< (val_bind<T2> v, const query_column& c) + { + return c.greater (v); + } + + friend query_base + operator< (const query_column& c, ref_bind<T> r) + { + return c.less (r); + } + + friend query_base + operator< (ref_bind<T> r, const query_column& c) + { + return c.greater (r); + } + + // > + // + public: + query_base + greater (decayed_type v) const + { + return greater (val_bind<T> (v)); + } + + query_base + greater (val_bind<T> v) const + { + query_base q (table_, column_); + q += ">"; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + greater (val_bind<T2> v) const + { + return greater (val_bind<T> (decayed_type (v.val))); + } + + query_base + greater (ref_bind<T> r) const + { + query_base q (table_, column_); + q += ">"; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator> (const query_column& c, decayed_type v) + { + return c.greater (v); + } + + friend query_base + operator> (decayed_type v, const query_column& c) + { + return c.less (v); + } + + friend query_base + operator> (const query_column& c, val_bind<T> v) + { + return c.greater (v); + } + + friend query_base + operator> (val_bind<T> v, const query_column& c) + { + return c.less (v); + } + + template <typename T2> + friend query_base + operator> (const query_column& c, val_bind<T2> v) + { + return c.greater (v); + } + + template <typename T2> + friend query_base + operator> (val_bind<T2> v, const query_column& c) + { + return c.less (v); + } + + friend query_base + operator> (const query_column& c, ref_bind<T> r) + { + return c.greater (r); + } + + friend query_base + operator> (ref_bind<T> r, const query_column& c) + { + return c.less (r); + } + + // <= + // + public: + query_base + less_equal (decayed_type v) const + { + return less_equal (val_bind<T> (v)); + } + + query_base + less_equal (val_bind<T> v) const + { + query_base q (table_, column_); + q += "<="; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + less_equal (val_bind<T2> v) const + { + return less_equal (val_bind<T> (decayed_type (v.val))); + } + + query_base + less_equal (ref_bind<T> r) const + { + query_base q (table_, column_); + q += "<="; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator<= (const query_column& c, decayed_type v) + { + return c.less_equal (v); + } + + friend query_base + operator<= (decayed_type v, const query_column& c) + { + return c.greater_equal (v); + } + + friend query_base + operator<= (const query_column& c, val_bind<T> v) + { + return c.less_equal (v); + } + + friend query_base + operator<= (val_bind<T> v, const query_column& c) + { + return c.greater_equal (v); + } + + template <typename T2> + friend query_base + operator<= (const query_column& c, val_bind<T2> v) + { + return c.less_equal (v); + } + + template <typename T2> + friend query_base + operator<= (val_bind<T2> v, const query_column& c) + { + return c.greater_equal (v); + } + + friend query_base + operator<= (const query_column& c, ref_bind<T> r) + { + return c.less_equal (r); + } + + friend query_base + operator<= (ref_bind<T> r, const query_column& c) + { + return c.greater_equal (r); + } + + // >= + // + public: + query_base + greater_equal (decayed_type v) const + { + return greater_equal (val_bind<T> (v)); + } + + query_base + greater_equal (val_bind<T> v) const + { + query_base q (table_, column_); + q += ">="; + q.append<T, ID> (v, conversion_); + return q; + } + + template <typename T2> + query_base + greater_equal (val_bind<T2> v) const + { + return greater_equal (val_bind<T> (decayed_type (v.val))); + } + + query_base + greater_equal (ref_bind<T> r) const + { + query_base q (table_, column_); + q += ">="; + q.append<T, ID> (r, conversion_); + return q; + } + + friend query_base + operator>= (const query_column& c, decayed_type v) + { + return c.greater_equal (v); + } + + friend query_base + operator>= (decayed_type v, const query_column& c) + { + return c.less_equal (v); + } + + friend query_base + operator>= (const query_column& c, val_bind<T> v) + { + return c.greater_equal (v); + } + + friend query_base + operator>= (val_bind<T> v, const query_column& c) + { + return c.less_equal (v); + } + + template <typename T2> + friend query_base + operator>= (const query_column& c, val_bind<T2> v) + { + return c.greater_equal (v); + } + + template <typename T2> + friend query_base + operator>= (val_bind<T2> v, const query_column& c) + { + return c.less_equal (v); + } + + friend query_base + operator>= (const query_column& c, ref_bind<T> r) + { + return c.greater_equal (r); + } + + friend query_base + operator>= (ref_bind<T> r, const query_column& c) + { + return c.less_equal (r); + } + + // Column comparison. + // + public: + template <typename T2, database_type_id ID2> + query_base + operator== (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () == + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += "="; + q.append (c.table (), c.column ()); + return q; + } + + template <typename T2, database_type_id ID2> + query_base + operator!= (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () != + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += "!="; + q.append (c.table (), c.column ()); + return q; + } + + template <typename T2, database_type_id ID2> + query_base + operator< (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () < + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += "<"; + q.append (c.table (), c.column ()); + return q; + } + + template <typename T2, database_type_id ID2> + query_base + operator> (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () > + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += ">"; + q.append (c.table (), c.column ()); + return q; + } + + template <typename T2, database_type_id ID2> + query_base + operator<= (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () <= + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += "<="; + q.append (c.table (), c.column ()); + return q; + } + + template <typename T2, database_type_id ID2> + query_base + operator>= (const query_column<T2, ID2>& c) const + { + // We can compare columns only if we can compare their C++ types. + // + (void) (sizeof (decay_traits<T>::instance () >= + decay_traits<T2>::instance ())); + + query_base q (table_, column_); + q += ">="; + q.append (c.table (), c.column ()); + return q; + } + }; + + // Provide operator+() for using columns to construct native + // query fragments (e.g., ORDER BY). + // + template <typename T, database_type_id ID> + inline query_base + operator+ (const query_column<T, ID>& c, const std::string& s) + { + query_base q (c.table (), c.column ()); + q += s; + return q; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const std::string& s, const query_column<T, ID>& c) + { + query_base q (s); + q.append (c.table (), c.column ()); + return q; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const query_column<T, ID>& c, const query_base& q) + { + query_base r (c.table (), c.column ()); + r += q; + return r; + } + + template <typename T, database_type_id ID> + inline query_base + operator+ (const query_base& q, const query_column<T, ID>& c) + { + query_base r (q); + r.append (c.table (), c.column ()); + return r; + } + + // + // + template <typename T, database_type_id> + struct query_param_impl; + + // TINY + // + template <typename T> + struct query_param_impl<T, id_tiny>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_TINY; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_tiny>::set_image (image_, is_null, v); + } + + private: + signed char image_; + }; + + template <typename T> + struct query_param_impl<T, id_utiny>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_TINY; + b->is_unsigned = true; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_utiny>::set_image (image_, is_null, v); + } + + private: + unsigned char image_; + }; + + // SHORT + // + template <typename T> + struct query_param_impl<T, id_short>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_SHORT; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_short>::set_image (image_, is_null, v); + } + + private: + short image_; + }; + + template <typename T> + struct query_param_impl<T, id_ushort>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_SHORT; + b->is_unsigned = true; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_ushort>::set_image (image_, is_null, v); + } + + private: + unsigned short image_; + }; + + // LONG + // + template <typename T> + struct query_param_impl<T, id_long>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_LONG; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_long>::set_image (image_, is_null, v); + } + + private: + int image_; + }; + + template <typename T> + struct query_param_impl<T, id_ulong>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_LONG; + b->is_unsigned = true; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_ulong>::set_image (image_, is_null, v); + } + + private: + unsigned int image_; + }; + + // LONGLONG + // + template <typename T> + struct query_param_impl<T, id_longlong>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_LONGLONG; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_longlong>::set_image (image_, is_null, v); + } + + private: + long long image_; + }; + + template <typename T> + struct query_param_impl<T, id_ulonglong>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_LONGLONG; + b->is_unsigned = true; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_ulonglong>::set_image (image_, is_null, v); + } + + private: + unsigned long long image_; + }; + + // FLOAT + // + template <typename T> + struct query_param_impl<T, id_float>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_FLOAT; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_float>::set_image (image_, is_null, v); + } + + private: + float image_; + }; + + // DOUBLE + // + template <typename T> + struct query_param_impl<T, id_double>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_DOUBLE; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_double>::set_image (image_, is_null, v); + } + + private: + double image_; + }; + + // DECIMAL + // + template <typename T> + struct query_param_impl<T, id_decimal>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + return init (*static_cast<const T*> (value_)); + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_NEWDECIMAL; + b->buffer = buffer_.data (); + b->buffer_length = static_cast<unsigned long> (buffer_.capacity ()); + b->length = &size_; + } + + private: + bool + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + std::size_t size (0), cap (buffer_.capacity ()); + value_traits<T, id_decimal>::set_image (buffer_, size, is_null, v); + size_ = static_cast<unsigned long> (size); + return cap != buffer_.capacity (); + } + + private: + details::buffer buffer_; + unsigned long size_; + }; + + // DATE + // + template <typename T> + struct query_param_impl<T, id_date>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_DATE; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_date>::set_image (image_, is_null, v); + } + + private: + MYSQL_TIME image_; + }; + + // TIME + // + template <typename T> + struct query_param_impl<T, id_time>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_TIME; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_time>::set_image (image_, is_null, v); + } + + private: + MYSQL_TIME image_; + }; + + // DATETIME + // + template <typename T> + struct query_param_impl<T, id_datetime>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_DATETIME; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_datetime>::set_image (image_, is_null, v); + } + + private: + MYSQL_TIME image_; + }; + + // TIMESTAMP + // + template <typename T> + struct query_param_impl<T, id_timestamp>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_TIMESTAMP; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_timestamp>::set_image (image_, is_null, v); + } + + private: + MYSQL_TIME image_; + }; + + // YEAR + // + template <typename T> + struct query_param_impl<T, id_year>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_SHORT; + b->is_unsigned = false; + b->buffer = &image_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + value_traits<T, id_year>::set_image (image_, is_null, v); + } + + private: + short image_; + }; + + // STRING + // + template <typename T> + struct query_param_impl<T, id_string>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + return init (*static_cast<const T*> (value_)); + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_STRING; + b->buffer = buffer_.data (); + b->buffer_length = static_cast<unsigned long> (buffer_.capacity ()); + b->length = &size_; + } + + private: + bool + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + std::size_t size (0), cap (buffer_.capacity ()); + value_traits<T, id_string>::set_image (buffer_, size, is_null, v); + size_ = static_cast<unsigned long> (size); + return cap != buffer_.capacity (); + } + + private: + details::buffer buffer_; + unsigned long size_; + }; + + // BLOB + // + template <typename T> + struct query_param_impl<T, id_blob>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + return init (*static_cast<const T*> (value_)); + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_BLOB; + b->buffer = buffer_.data (); + b->buffer_length = static_cast<unsigned long> (buffer_.capacity ()); + b->length = &size_; + } + + private: + bool + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + std::size_t size (0), cap (buffer_.capacity ()); + value_traits<T, id_blob>::set_image (buffer_, size, is_null, v); + size_ = static_cast<unsigned long> (size); + return cap != buffer_.capacity (); + } + + private: + details::buffer buffer_; + unsigned long size_; + }; + + // BIT + // + template <typename T> + struct query_param_impl<T, id_bit>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + init (*static_cast<const T*> (value_)); + return false; + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_BLOB; + b->buffer = buffer_; + b->buffer_length = static_cast<unsigned long> (sizeof (buffer_)); + b->length = &size_; + } + + private: + void + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + std::size_t size (0); + value_traits<T, id_bit>::set_image ( + buffer_, sizeof (buffer_), size, is_null, v); + size_ = static_cast<unsigned long> (size); + } + + private: + // Max 64 bit. + // + unsigned char buffer_[8]; + unsigned long size_; + }; + + // ENUM + // + // The image type can be either integer or string. + // + template <typename T> + struct query_param_impl<T, id_enum>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + return init (*static_cast<const T*> (value_)); + } + + virtual void + bind (MYSQL_BIND* b) + { + enum_traits::bind (*b, image_, size_, 0); + } + + private: + bool + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + return enum_traits::set_image (image_, size_, is_null, v); + } + + private: + typename value_traits<T, id_enum>::image_type image_; + unsigned long size_; // Keep size in case it is a string. + }; + + // SET + // + template <typename T> + struct query_param_impl<T, id_set>: query_param + { + query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {} + query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);} + + virtual bool + init () + { + return init (*static_cast<const T*> (value_)); + } + + virtual void + bind (MYSQL_BIND* b) + { + b->buffer_type = MYSQL_TYPE_STRING; + b->buffer = buffer_.data (); + b->buffer_length = static_cast<unsigned long> (buffer_.capacity ()); + b->length = &size_; + } + + private: + bool + init (typename decay_traits<T>::type v) + { + bool is_null (false); // Can't be NULL. + std::size_t size (0), cap (buffer_.capacity ()); + value_traits<T, id_set>::set_image (buffer_, size, is_null, v); + size_ = static_cast<unsigned long> (size); + return cap != buffer_.capacity (); + } + + private: + details::buffer buffer_; + unsigned long size_; + }; + } +} + +// odb::mysql::query and odb::query specialization for MySQL. +// +namespace odb +{ + namespace mysql + { + template <typename T> + class query: public query_base, + public query_selector<T, id_mysql>::columns_type + { + public: + // We don't define any typedefs here since they may clash with + // column names defined by our base type. + // + + query () + { + } + + explicit + query (bool v) + : query_base (v) + { + } + + explicit + query (const char* q) + : query_base (q) + { + } + + explicit + query (const std::string& q) + : query_base (q) + { + } + + template <typename T2> + explicit + query (val_bind<T2> v) + : query_base (v) + { + } + + template <typename T2> + explicit + query (ref_bind<T2> r) + : query_base (r) + { + } + + query (const query_base& q) + : query_base (q) + { + } + + template <database_type_id ID> + query (const query_column<bool, ID>& qc) + : query_base (qc) + { + } + + query (const odb::query_base& q) + : query_base (q) + { + } + }; + + namespace core + { + using mysql::query; + } + } + + // Derive odb::query from odb::mysql::query so that it can be + // implicitly converted in mysql::database::query() calls. + // + template <typename T> + class query<T, mysql::query_base>: public mysql::query<T> + { + public: + // We don't define any typedefs here since they may clash with + // column names defined by our base type. + // + + query () + { + } + + explicit + query (bool v) + : mysql::query<T> (v) + { + } + + explicit + query (const char* q) + : mysql::query<T> (q) + { + } + + explicit + query (const std::string& q) + : mysql::query<T> (q) + { + } + + template <typename T2> + explicit + query (mysql::val_bind<T2> v) + : mysql::query<T> (v) + { + } + + template <typename T2> + explicit + query (mysql::ref_bind<T2> r) + : mysql::query<T> (r) + { + } + + query (const mysql::query_base& q) + : mysql::query<T> (q) + { + } + + template <mysql::database_type_id ID> + query (const mysql::query_column<bool, ID>& qc) + : mysql::query<T> (qc) + { + } + }; +} + +#include <odb/mysql/query.ixx> +#include <odb/mysql/query.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_QUERY_HXX diff --git a/libodb-mysql/odb/mysql/query.ixx b/libodb-mysql/odb/mysql/query.ixx new file mode 100644 index 0000000..ea1ec03 --- /dev/null +++ b/libodb-mysql/odb/mysql/query.ixx @@ -0,0 +1,34 @@ +// file : odb/mysql/query.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + inline binding& query_base:: + parameters_binding () const + { + return binding_; + } + + template <typename T, database_type_id ID> + inline void query_base:: + append (val_bind<T> v, const char* conv) + { + append ( + details::shared_ptr<query_param> ( + new (details::shared) query_param_impl<T, ID> (v)), + conv); + } + + template <typename T, database_type_id ID> + inline void query_base:: + append (ref_bind<T> r, const char* conv) + { + append ( + details::shared_ptr<query_param> ( + new (details::shared) query_param_impl<T, ID> (r)), + conv); + } + } +} diff --git a/libodb-mysql/odb/mysql/query.txx b/libodb-mysql/odb/mysql/query.txx new file mode 100644 index 0000000..e09ed85 --- /dev/null +++ b/libodb-mysql/odb/mysql/query.txx @@ -0,0 +1,168 @@ +// file : odb/mysql/query.txx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + // + // query_base + // + + template <database_type_id ID> + query_base:: + query_base (const query_column<bool, ID>& c) + : binding_ (0, 0) + { + // Cannot use IS TRUE here since database type can be a non- + // integral type. + // + append (c.table (), c.column ()); + append ("="); + append<bool, ID> (val_bind<bool> (true), c.conversion ()); + } + + // + // query_column + // + + // in + // + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + in (decayed_type v1, decayed_type v2) const + { + query_base q (table_, column_); + q += "IN ("; + q.append<T, ID> (val_bind<T> (v1), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v2), conversion_); + q += ")"; + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + in (decayed_type v1, decayed_type v2, decayed_type v3) const + { + query_base q (table_, column_); + q += "IN ("; + q.append<T, ID> (val_bind<T> (v1), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v2), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v3), conversion_); + q += ")"; + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + in (decayed_type v1, decayed_type v2, decayed_type v3, + decayed_type v4) const + { + query_base q (table_, column_); + q += "IN ("; + q.append<T, ID> (val_bind<T> (v1), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v2), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v3), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v4), conversion_); + q += ")"; + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + in (decayed_type v1, decayed_type v2, decayed_type v3, decayed_type v4, + decayed_type v5) const + { + query_base q (table_, column_); + q += "IN ("; + q.append<T, ID> (val_bind<T> (v1), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v2), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v3), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v4), conversion_); + q += ","; + q.append<T, ID> (val_bind<T> (v5), conversion_); + q += ")"; + return q; + } + + template <typename T, database_type_id ID> + template <typename I> + query_base query_column<T, ID>:: + in_range (I begin, I end) const + { + if (begin != end) + { + query_base q (table_, column_); + q += "IN ("; + + for (I i (begin); i != end; ++i) + { + if (i != begin) + q += ","; + + q.append<T, ID> (val_bind<T> (*i), conversion_); + } + + q += ")"; + return q; + } + else + return query_base (false); + } + + // like + // + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + like (val_bind<T> p) const + { + query_base q (table_, column_); + q += "LIKE"; + q.append<T, ID> (p, conversion_); + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + like (ref_bind<T> p) const + { + query_base q (table_, column_); + q += "LIKE"; + q.append<T, ID> (p, conversion_); + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + like (val_bind<T> p, decayed_type e) const + { + query_base q (table_, column_); + q += "LIKE"; + q.append<T, ID> (p, conversion_); + q += "ESCAPE"; + q.append<T, ID> (val_bind<T> (e), conversion_); + return q; + } + + template <typename T, database_type_id ID> + query_base query_column<T, ID>:: + like (ref_bind<T> p, decayed_type e) const + { + query_base q (table_, column_); + q += "LIKE"; + q.append<T, ID> (p, conversion_); + q += "ESCAPE"; + q.append<T, ID> (val_bind<T> (e), conversion_); + return q; + } + } +} diff --git a/libodb-mysql/odb/mysql/section-statements.hxx b/libodb-mysql/odb/mysql/section-statements.hxx new file mode 100644 index 0000000..a88683f --- /dev/null +++ b/libodb-mysql/odb/mysql/section-statements.hxx @@ -0,0 +1,200 @@ +// file : odb/mysql/section-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_SECTION_STATEMENTS_HXX +#define ODB_MYSQL_SECTION_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/schema-version.hxx> +#include <odb/traits.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/binding.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/database.hxx> +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class connection; + + // Template argument is the section traits type. + // + template <typename T, typename ST> + class section_statements + { + public: + typedef ST traits; + + typedef typename traits::image_type image_type; + typedef typename traits::id_image_type id_image_type; + + typedef mysql::select_statement select_statement_type; + typedef mysql::update_statement update_statement_type; + + typedef mysql::connection connection_type; + + section_statements (connection_type&, + image_type&, id_image_type&, + binding& id, binding& idv); + + connection_type& + connection () {return conn_;} + + const schema_version_migration& + version_migration (const char* name = "") const + { + if (svm_ == 0) + svm_ = &conn_.database ().schema_version_migration (name); + + return *svm_; + } + + image_type& + image () {return image_;} + + const binding& + id_binding () {return id_binding_;} + + // Id and optimistic concurrency version (if any). + // + const binding& + idv_binding () {return idv_binding_;} + + // Select binding. + // + std::size_t + select_image_version () const { return select_image_version_;} + + void + select_image_version (std::size_t v) {select_image_version_ = v;} + + binding& + select_image_binding () {return select_image_binding_;} + + my_bool* + select_image_truncated () {return select_image_truncated_;} + + // Update binding. + // + std::size_t + update_image_version () const { return update_image_version_;} + + void + update_image_version (std::size_t v) {update_image_version_ = v;} + + std::size_t + update_id_binding_version () const { return update_id_binding_version_;} + + void + update_id_binding_version (std::size_t v) {update_id_binding_version_ = v;} + + binding& + update_image_binding () {return update_image_binding_;} + + // + // Statements. + // + + select_statement_type& + select_statement () + { + if (select_ == 0) + select_.reset ( + new (details::shared) select_statement_type ( + conn_, + traits::select_statement, + traits::versioned, // Process if versioned. + false, // Don't optimize. + id_binding_, + select_image_binding_, + false)); + + return *select_; + } + + update_statement_type& + update_statement () + { + if (update_ == 0) + update_.reset ( + new (details::shared) update_statement_type ( + conn_, + traits::update_statement, + traits::versioned, // Process if versioned. + update_image_binding_, + false)); + + return *update_; + } + + public: + static const std::size_t id_column_count = traits::id_column_count; + static const std::size_t managed_optimistic_load_column_count = + traits::managed_optimistic_load_column_count; + static const std::size_t managed_optimistic_update_column_count = + traits::managed_optimistic_update_column_count; + static const std::size_t select_column_count = traits::load_column_count; + static const std::size_t update_column_count = + traits::update_column_count; + + private: + section_statements (const section_statements&); + section_statements& operator= (const section_statements&); + + protected: + connection_type& conn_; + mutable const schema_version_migration* svm_; + + // These come from object_statements. + // + image_type& image_; + binding& id_binding_; + binding& idv_binding_; + + // Select binding. + // + std::size_t select_image_version_; + + static const std::size_t select_bind_count = + select_column_count != 0 || managed_optimistic_load_column_count != 0 + ? select_column_count + managed_optimistic_load_column_count + : 1; + + binding select_image_binding_; + MYSQL_BIND select_image_bind_[select_bind_count]; + my_bool select_image_truncated_[select_bind_count]; + + // Update binding. + // + std::size_t update_image_version_; + std::size_t update_id_binding_version_; + + static const std::size_t update_bind_count = + update_column_count != 0 || managed_optimistic_update_column_count != 0 + ? update_column_count + id_column_count + + managed_optimistic_update_column_count + : 1; + + binding update_image_binding_; + MYSQL_BIND update_image_bind_[update_bind_count]; + + details::shared_ptr<select_statement_type> select_; + details::shared_ptr<update_statement_type> update_; + }; + } +} + +#include <odb/mysql/section-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_SECTION_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/section-statements.txx b/libodb-mysql/odb/mysql/section-statements.txx new file mode 100644 index 0000000..5c0672e --- /dev/null +++ b/libodb-mysql/odb/mysql/section-statements.txx @@ -0,0 +1,40 @@ +// file : odb/mysql/section-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::memset + +namespace odb +{ + namespace mysql + { + template <typename T, typename ST> + section_statements<T, ST>:: + section_statements (connection_type& conn, + image_type& im, id_image_type&, + binding& id, binding& idv) + : conn_ (conn), + svm_ (0), + image_ (im), + id_binding_ (id), + idv_binding_ (idv), + select_image_binding_ (select_image_bind_, + select_column_count + + managed_optimistic_load_column_count), + update_image_binding_ (update_image_bind_, + update_column_count + id_column_count + + managed_optimistic_update_column_count) + { + select_image_version_ = 0; + update_image_version_ = 0; + update_id_binding_version_ = 0; + + std::memset (select_image_bind_, 0, sizeof (select_image_bind_)); + std::memset ( + select_image_truncated_, 0, sizeof (select_image_truncated_)); + std::memset (update_image_bind_, 0, sizeof (update_image_bind_)); + + for (std::size_t i (0); i < select_bind_count; ++i) + select_image_bind_[i].error = select_image_truncated_ + i; + } + } +} diff --git a/libodb-mysql/odb/mysql/simple-object-result.hxx b/libodb-mysql/odb/mysql/simple-object-result.hxx new file mode 100644 index 0000000..ae0848c --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-result.hxx @@ -0,0 +1,85 @@ +// file : odb/mysql/simple-object-result.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_SIMPLE_OBJECT_RESULT_HXX +#define ODB_MYSQL_SIMPLE_OBJECT_RESULT_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/schema-version.hxx> +#include <odb/simple-object-result.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> // query_base +#include <odb/mysql/statement.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class object_result_impl: public odb::object_result_impl<T> + { + public: + typedef odb::object_result_impl<T> base_type; + + typedef typename base_type::id_type id_type; + typedef typename base_type::object_type object_type; + typedef typename base_type::pointer_type pointer_type; + + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename base_type::pointer_traits pointer_traits; + + typedef typename object_traits::statements_type statements_type; + + virtual + ~object_result_impl (); + + object_result_impl (const query_base&, + details::shared_ptr<select_statement>, + statements_type&, + const schema_version_migration*); + + virtual void + load (object_type&, bool fetch); + + virtual id_type + load_id (); + + virtual void + next (); + + virtual void + cache (); + + virtual std::size_t + size (); + + virtual void + invalidate (); + + using base_type::current; + + private: + void + fetch (bool next = true); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + object_traits_calls<object_type> tc_; + std::size_t count_; + }; + } +} + +#include <odb/mysql/simple-object-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_SIMPLE_OBJECT_RESULT_HXX diff --git a/libodb-mysql/odb/mysql/simple-object-result.txx b/libodb-mysql/odb/mysql/simple-object-result.txx new file mode 100644 index 0000000..5c6e198 --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-result.txx @@ -0,0 +1,235 @@ +// file : odb/mysql/simple-object-result.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cassert> + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> // result_not_cached + +#include <odb/mysql/simple-object-statements.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + object_result_impl<T>:: + ~object_result_impl () + { + if (!this->end_) + statement_->free_result (); + } + + template <typename T> + void object_result_impl<T>:: + invalidate () + { + if (!this->end_) + { + statement_->free_result (); + this->end_ = true; + } + + statement_.reset (); + } + + template <typename T> + object_result_impl<T>:: + object_result_impl (const query_base&, + details::shared_ptr<select_statement> statement, + statements_type& statements, + const schema_version_migration* svm) + : base_type (statements.connection ()), + statement_ (statement), + statements_ (statements), + tc_ (svm), + count_ (0) + { + } + + template <typename T> + void object_result_impl<T>:: + load (object_type& obj, bool f) + { + if (count_ > statement_->fetched ()) + fetch (); + else if (f && statement_->cached ()) + { + // We have to re-load the image in case it has been overwritten + // between the last time we fetched and this call to load(). + // + fetch (false); + } + + // This is a top-level call so the statements cannot be locked. + // + assert (!statements_.locked ()); + typename statements_type::auto_lock l (statements_); + + object_traits::callback (this->db_, obj, callback_event::pre_load); + + typename object_traits::image_type& i (statements_.image ()); + tc_.init (obj, i, &this->db_); + + // Initialize the id image and binding and load the rest of the object + // (containers, etc). + // + typename object_traits::id_image_type& idi (statements_.id_image ()); + object_traits::init (idi, object_traits::id (i)); + + binding& idb (statements_.id_image_binding ()); + if (idi.version != statements_.id_image_version () || idb.version == 0) + { + object_traits::bind (idb.bind, idi); + statements_.id_image_version (idi.version); + idb.version++; + } + + tc_.load_ (statements_, obj, false); + statements_.load_delayed (tc_.version ()); + l.unlock (); + object_traits::callback (this->db_, obj, callback_event::post_load); + } + + template <typename T> + typename object_result_impl<T>::id_type + object_result_impl<T>:: + load_id () + { + if (count_ > statement_->fetched ()) + fetch (); + else if (statement_->cached ()) + { + // We have to re-load the image in case it has been overwritten + // between the last time we fetched and this call to load_id(). + // + fetch (false); + } + + return object_traits::id (statements_.image ()); + } + + template <typename T> + void object_result_impl<T>:: + next () + { + this->current (pointer_type ()); + + if (this->end_) + return; + + // If we are cached, simply increment the position and + // postpone the actual row fetching until later. This way + // if the same object is loaded in between iteration, the + // image won't be messed up. + // + count_++; + + if (statement_->cached ()) + this->end_ = count_ > statement_->result_size (); + else + fetch (); + + if (this->end_) + statement_->free_result (); + } + + template <typename T> + void object_result_impl<T>:: + fetch (bool next) + { + // If the result is cached, the image can grow between calls + // to fetch() as a result of other statements execution. + // + if (statement_->cached ()) + { + typename object_traits::image_type& im (statements_.image ()); + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + tc_.bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + } + } + + while (!this->end_ && (!next || count_ > statement_->fetched ())) + { + select_statement::result r (statement_->fetch (next)); + + switch (r) + { + case select_statement::truncated: + { + // Don't re-fetch data we are skipping. + // + if (next && count_ != statement_->fetched ()) + continue; + + typename object_traits::image_type& im (statements_.image ()); + + if (tc_.grow (im, statements_.select_image_truncated ())) + im.version++; + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + tc_.bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + statement_->refetch (); + } + // Fall throught. + } + case select_statement::success: + { + break; + } + case select_statement::no_data: + { + this->end_ = true; + break; + } + } + + // If we are refetching the current row, then we are done. + // + if (!next) + break; + } + } + + template <typename T> + void object_result_impl<T>:: + cache () + { + if (!this->end_ && !statement_->cached ()) + { + statement_->cache (); + + if (count_ == statement_->result_size ()) + { + statement_->free_result (); + count_++; // One past the result size. + this->end_ = true; + } + } + } + + template <typename T> + std::size_t object_result_impl<T>:: + size () + { + if (!this->end_) + { + if (!statement_->cached ()) + throw result_not_cached (); + + return statement_->result_size (); + } + else + return count_ - 1; // One past the result size. + } + } +} diff --git a/libodb-mysql/odb/mysql/simple-object-statements.cxx b/libodb-mysql/odb/mysql/simple-object-statements.cxx new file mode 100644 index 0000000..af0df6b --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-statements.cxx @@ -0,0 +1,15 @@ +// file : odb/mysql/simple-object-statements.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/simple-object-statements.hxx> + +namespace odb +{ + namespace mysql + { + object_statements_base:: + ~object_statements_base () + { + } + } +} diff --git a/libodb-mysql/odb/mysql/simple-object-statements.hxx b/libodb-mysql/odb/mysql/simple-object-statements.hxx new file mode 100644 index 0000000..5292b66 --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-statements.hxx @@ -0,0 +1,587 @@ +// file : odb/mysql/simple-object-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_SIMPLE_OBJECT_STATEMENTS_HXX +#define ODB_MYSQL_SIMPLE_OBJECT_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <vector> +#include <cassert> +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/traits.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/binding.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/statements-base.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + // The extra_statement_cache class is only defined (and used) in + // the generated source file. However, object_statements may be + // referenced from another source file in the case of a polymorphic + // hierarchy (though in this case the extra statement cache is + // not used). As a result, we cannot have a by-value member and + // instead will store a pointer and lazily allocate the cache if + // and when needed. We will also need to store a pointer to the + // deleter function which will be initialized during allocation + // (at that point we know that the cache class is defined). + // + template <typename T, typename I, typename ID> + struct extra_statement_cache_ptr + { + typedef I image_type; + typedef ID id_image_type; + typedef mysql::connection connection_type; + + extra_statement_cache_ptr (): p_ (0) {} + ~extra_statement_cache_ptr () + { + if (p_ != 0) + (this->*deleter_) (0, 0, 0, 0, 0); + } + + T& + get (connection_type& c, + image_type& im, id_image_type& idim, + binding& id, binding* idv) + { + if (p_ == 0) + allocate (&c, &im, &idim, &id, (idv != 0 ? idv : &id)); + + return *p_; + } + + private: + void + allocate (connection_type*, + image_type*, id_image_type*, + binding*, binding*); + + private: + T* p_; + void (extra_statement_cache_ptr::*deleter_) ( + connection_type*, image_type*, id_image_type*, binding*, binding*); + }; + + template <typename T, typename I, typename ID> + void extra_statement_cache_ptr<T, I, ID>:: + allocate (connection_type* c, + image_type* im, id_image_type* idim, + binding* id, binding* idv) + { + // To reduce object code size, this function acts as both allocator + // and deleter. + // + if (p_ == 0) + { + p_ = new T (*c, *im, *idim, *id, *idv); + deleter_ = &extra_statement_cache_ptr<T, I, ID>::allocate; + } + else + delete p_; + } + + // + // Implementation for objects with object id. + // + + class LIBODB_MYSQL_EXPORT object_statements_base: public statements_base + { + // Locking. + // + public: + void + lock () + { + assert (!locked_); + locked_ = true; + } + + void + unlock () + { + assert (locked_); + locked_ = false; + } + + bool + locked () const + { + return locked_; + } + + struct auto_unlock + { + // Unlocks the statement on construction and re-locks it on + // destruction. + // + auto_unlock (object_statements_base&); + ~auto_unlock (); + + private: + auto_unlock (const auto_unlock&); + auto_unlock& operator= (const auto_unlock&); + + private: + object_statements_base& s_; + }; + + public: + virtual + ~object_statements_base (); + + protected: + object_statements_base (connection_type& conn) + : statements_base (conn), locked_ (false) + { + } + + protected: + bool locked_; + }; + + template <typename T, bool optimistic> + struct optimistic_data; + + template <typename T> + struct optimistic_data<T, true> + { + typedef T object_type; + typedef object_traits_impl<object_type, id_mysql> object_traits; + + optimistic_data (MYSQL_BIND*); + + binding* + id_image_binding () {return &id_image_binding_;} + + // The id + optimistic column binding. + // + binding id_image_binding_; + + details::shared_ptr<delete_statement> erase_; + }; + + template <typename T> + struct optimistic_data<T, false> + { + optimistic_data (MYSQL_BIND*) {} + + binding* + id_image_binding () {return 0;} + }; + + template <typename T> + class object_statements: public object_statements_base + { + public: + typedef T object_type; + typedef object_traits_impl<object_type, id_mysql> object_traits; + typedef typename object_traits::id_type id_type; + typedef typename object_traits::pointer_type pointer_type; + typedef typename object_traits::image_type image_type; + typedef typename object_traits::id_image_type id_image_type; + + typedef + typename object_traits::pointer_cache_traits + pointer_cache_traits; + + typedef + typename object_traits::extra_statement_cache_type + extra_statement_cache_type; + + typedef mysql::insert_statement insert_statement_type; + typedef mysql::select_statement select_statement_type; + typedef mysql::update_statement update_statement_type; + typedef mysql::delete_statement delete_statement_type; + + // Automatic lock. + // + struct auto_lock + { + // Lock the statements unless they are already locked in which + // case subsequent calls to locked() will return false. + // + auto_lock (object_statements&); + + // Unlock the statemens if we are holding the lock and clear + // the delayed loads. This should only happen in case an + // exception is thrown. In normal circumstances, the user + // should call unlock() explicitly. + // + ~auto_lock (); + + // Return true if this auto_lock instance holds the lock. + // + bool + locked () const; + + // Unlock the statemens. + // + void + unlock (); + + private: + auto_lock (const auto_lock&); + auto_lock& operator= (const auto_lock&); + + private: + object_statements& s_; + bool locked_; + }; + + public: + object_statements (connection_type&); + + virtual + ~object_statements (); + + // Delayed loading. + // + typedef void (*loader_function) (odb::database&, + const id_type&, + object_type&, + const schema_version_migration*); + + void + delay_load (const id_type& id, + object_type& obj, + const typename pointer_cache_traits::position_type& p, + loader_function l = 0) + { + delayed_.push_back (delayed_load (id, obj, p, l)); + } + + void + load_delayed (const schema_version_migration* svm) + { + assert (locked ()); + + if (!delayed_.empty ()) + load_delayed_<object_statements> (svm); + } + + void + clear_delayed () + { + if (!delayed_.empty ()) + clear_delayed_ (); + } + + // Object image. + // + image_type& + image () {return image_;} + + // Insert binding. + // + std::size_t + insert_image_version () const { return insert_image_version_;} + + void + insert_image_version (std::size_t v) {insert_image_version_ = v;} + + binding& + insert_image_binding () {return insert_image_binding_;} + + // Update binding. + // + std::size_t + update_image_version () const { return update_image_version_;} + + void + update_image_version (std::size_t v) {update_image_version_ = v;} + + std::size_t + update_id_image_version () const { return update_id_image_version_;} + + void + update_id_image_version (std::size_t v) {update_id_image_version_ = v;} + + binding& + update_image_binding () {return update_image_binding_;} + + // Select binding. + // + std::size_t + select_image_version () const { return select_image_version_;} + + void + select_image_version (std::size_t v) {select_image_version_ = v;} + + binding& + select_image_binding () {return select_image_binding_;} + + my_bool* + select_image_truncated () {return select_image_truncated_;} + + // Object id image and binding. + // + id_image_type& + id_image () {return id_image_;} + + std::size_t + id_image_version () const {return id_image_version_;} + + void + id_image_version (std::size_t v) {id_image_version_ = v;} + + binding& + id_image_binding () {return id_image_binding_;} + + // Optimistic id + managed column image binding. It points to + // the same suffix as id binding and they are always updated + // at the same time. + // + binding& + optimistic_id_image_binding () {return od_.id_image_binding_;} + + // Statements. + // + insert_statement_type& + persist_statement () + { + if (persist_ == 0) + persist_.reset ( + new (details::shared) insert_statement_type ( + conn_, + object_traits::persist_statement, + object_traits::versioned, // Process if versioned. + insert_image_binding_, + (object_traits::auto_id ? &id_image_binding_ : 0), + false)); + + return *persist_; + } + + select_statement_type& + find_statement () + { + if (find_ == 0) + find_.reset ( + new (details::shared) select_statement_type ( + conn_, + object_traits::find_statement, + object_traits::versioned, // Process if versioned. + false, // Don't optimize. + id_image_binding_, + select_image_binding_, + false)); + + return *find_; + } + + update_statement_type& + update_statement () + { + if (update_ == 0) + update_.reset ( + new (details::shared) update_statement_type ( + conn_, + object_traits::update_statement, + object_traits::versioned, // Process if versioned. + update_image_binding_, + false)); + + return *update_; + } + + delete_statement_type& + erase_statement () + { + if (erase_ == 0) + erase_.reset ( + new (details::shared) delete_statement_type ( + conn_, + object_traits::erase_statement, + id_image_binding_, + false)); + + return *erase_; + } + + delete_statement_type& + optimistic_erase_statement () + { + if (od_.erase_ == 0) + { + od_.erase_.reset ( + new (details::shared) delete_statement_type ( + conn_, + object_traits::optimistic_erase_statement, + od_.id_image_binding_, + false)); + } + + return *od_.erase_; + } + + // Extra (container, section) statement cache. + // + extra_statement_cache_type& + extra_statement_cache () + { + return extra_statement_cache_.get ( + conn_, + image_, id_image_, + id_image_binding_, od_.id_image_binding ()); + } + + public: + // select = total - separate_load + // insert = total - inverse - managed_optimistic + // update = total - inverse - managed_optimistic - id - readonly + // - separate_update + // + static const std::size_t id_column_count = + object_traits::id_column_count; + + static const std::size_t managed_optimistic_column_count = + object_traits::managed_optimistic_column_count; + + static const std::size_t select_column_count = + object_traits::column_count - + object_traits::separate_load_column_count; + + static const std::size_t insert_column_count = + object_traits::column_count - + object_traits::inverse_column_count - + object_traits::managed_optimistic_column_count; + + static const std::size_t update_column_count = + insert_column_count - + id_column_count - + object_traits::readonly_column_count - + object_traits::separate_update_column_count; + + private: + object_statements (const object_statements&); + object_statements& operator= (const object_statements&); + + protected: + template <typename STS> + void + load_delayed_ (const schema_version_migration*); + + void + clear_delayed_ (); + + protected: + template <typename T1> + friend class polymorphic_derived_object_statements; + + extra_statement_cache_ptr<extra_statement_cache_type, + image_type, + id_image_type> extra_statement_cache_; + + image_type image_; + + // Select binding. + // + std::size_t select_image_version_; + binding select_image_binding_; + MYSQL_BIND select_image_bind_[select_column_count]; + my_bool select_image_truncated_[select_column_count]; + + // Insert binding. + // + std::size_t insert_image_version_; + binding insert_image_binding_; + MYSQL_BIND insert_image_bind_[insert_column_count]; + + // Update binding. Note that the id suffix is bound to id_image_ + // below instead of image_ which makes this binding effectively + // bound to two images. As a result, we have to track versions + // for both of them. If this object uses optimistic concurrency, + // then the binding for the managed column (version, timestamp, + // etc) comes after the id and the image for such a column is + // stored as part of the id image. + // + std::size_t update_image_version_; + std::size_t update_id_image_version_; + binding update_image_binding_; + MYSQL_BIND update_image_bind_[update_column_count + id_column_count + + managed_optimistic_column_count]; + + // Id image binding (only used as a parameter). Uses the suffix in + // the update bind. + // + id_image_type id_image_; + std::size_t id_image_version_; + binding id_image_binding_; + + // Extra data for objects with optimistic concurrency support. + // + optimistic_data<T, managed_optimistic_column_count != 0> od_; + + details::shared_ptr<insert_statement_type> persist_; + details::shared_ptr<select_statement_type> find_; + details::shared_ptr<update_statement_type> update_; + details::shared_ptr<delete_statement_type> erase_; + + // Delayed loading. + // + struct delayed_load + { + typedef typename pointer_cache_traits::position_type position_type; + + delayed_load () {} + delayed_load (const id_type& i, + object_type& o, + const position_type& p, + loader_function l) + : id (i), obj (&o), pos (p), loader (l) + { + } + + id_type id; + object_type* obj; + position_type pos; + loader_function loader; + }; + + typedef std::vector<delayed_load> delayed_loads; + delayed_loads delayed_; + + // Delayed vectors swap guard. See the load_delayed_() function for + // details. + // + struct swap_guard + { + swap_guard (object_statements& os, delayed_loads& dl) + : os_ (os), dl_ (dl) + { + dl_.swap (os_.delayed_); + } + + ~swap_guard () + { + os_.clear_delayed (); + dl_.swap (os_.delayed_); + } + + private: + object_statements& os_; + delayed_loads& dl_; + }; + }; + } +} + +#include <odb/mysql/simple-object-statements.ixx> +#include <odb/mysql/simple-object-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_SIMPLE_OBJECT_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/simple-object-statements.ixx b/libodb-mysql/odb/mysql/simple-object-statements.ixx new file mode 100644 index 0000000..a75fc0d --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-statements.ixx @@ -0,0 +1,68 @@ +// file : odb/mysql/simple-object-statements.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +namespace odb +{ + namespace mysql + { + // + // auto_unlock + // + inline object_statements_base::auto_unlock:: + auto_unlock (object_statements_base& s) + : s_ (s) + { + s_.unlock (); + } + + inline object_statements_base::auto_unlock:: + ~auto_unlock () + { + s_.lock (); + } + + // + // auto_lock + // + template <typename T> + inline object_statements<T>::auto_lock:: + auto_lock (object_statements& s) + : s_ (s) + { + if (!s_.locked ()) + { + s_.lock (); + locked_ = true; + } + else + locked_ = false; + } + + template <typename T> + inline object_statements<T>::auto_lock:: + ~auto_lock () + { + if (locked_) + { + s_.unlock (); + s_.clear_delayed (); + } + } + + template <typename T> + inline bool object_statements<T>::auto_lock:: + locked () const + { + return locked_; + } + + template <typename T> + inline void object_statements<T>::auto_lock:: + unlock () + { + assert (locked_); + s_.unlock (); + locked_ = false; + } + } +} diff --git a/libodb-mysql/odb/mysql/simple-object-statements.txx b/libodb-mysql/odb/mysql/simple-object-statements.txx new file mode 100644 index 0000000..2c04c71 --- /dev/null +++ b/libodb-mysql/odb/mysql/simple-object-statements.txx @@ -0,0 +1,146 @@ +// file : odb/mysql/simple-object-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::memset + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> + +#include <odb/mysql/connection.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + // + // optimistic_data + // + + template <typename T> + optimistic_data<T, true>:: + optimistic_data (MYSQL_BIND* b) + : id_image_binding_ ( + b, + object_traits::id_column_count + + object_traits::managed_optimistic_column_count) + { + } + + // + // object_statements + // + + template <typename T> + object_statements<T>:: + ~object_statements () + { + } + + template <typename T> + object_statements<T>:: + object_statements (connection_type& conn) + : object_statements_base (conn), + select_image_binding_ (select_image_bind_, select_column_count), + insert_image_binding_ (insert_image_bind_, insert_column_count), + update_image_binding_ (update_image_bind_, + update_column_count + id_column_count + + managed_optimistic_column_count), + id_image_binding_ (update_image_bind_ + update_column_count, + id_column_count), + od_ (update_image_bind_ + update_column_count) + { + image_.version = 0; + select_image_version_ = 0; + insert_image_version_ = 0; + update_image_version_ = 0; + update_id_image_version_ = 0; + + id_image_.version = 0; + id_image_version_ = 0; + + std::memset (insert_image_bind_, 0, sizeof (insert_image_bind_)); + std::memset (update_image_bind_, 0, sizeof (update_image_bind_)); + std::memset (select_image_bind_, 0, sizeof (select_image_bind_)); + std::memset ( + select_image_truncated_, 0, sizeof (select_image_truncated_)); + + for (std::size_t i (0); i < select_column_count; ++i) + select_image_bind_[i].error = select_image_truncated_ + i; + } + + template <typename T> + template <typename STS> + void object_statements<T>:: + load_delayed_ (const schema_version_migration* svm) + { + database& db (connection ().database ()); + + delayed_loads dls; + swap_guard sg (*this, dls); + + while (!dls.empty ()) + { + delayed_load l (dls.back ()); + typename pointer_cache_traits::insert_guard ig (l.pos); + dls.pop_back (); + + if (l.loader == 0) + { + object_traits_calls<T> tc (svm); + + if (!tc.find_ (static_cast<STS&> (*this), &l.id)) + throw object_not_persistent (); + + object_traits::callback (db, *l.obj, callback_event::pre_load); + + // Our calls to init/load below can result in additional delayed + // loads being added to the delayed_ vector. We need to process + // those before we call the post callback. + // + tc.init (*l.obj, image (), &db); + + // Load containers, etc. + // + tc.load_ (static_cast<STS&> (*this), *l.obj, false); + + if (!delayed_.empty ()) + load_delayed_<STS> (svm); + + // Temporarily unlock the statement for the post_load call so that + // it can load objects of this type recursively. This is safe to do + // because we have completely loaded the current object. Also the + // delayed_ list is clear before the unlock and should be clear on + // re-lock (since a callback can only call public API functions + // which will make sure all the delayed loads are processed before + // returning). + // + { + auto_unlock u (*this); + object_traits::callback (db, *l.obj, callback_event::post_load); + } + } + else + l.loader (db, l.id, *l.obj, svm); + + pointer_cache_traits::load (ig.position ()); + ig.release (); + } + } + + template <typename T> + void object_statements<T>:: + clear_delayed_ () + { + // Remove the objects from the session cache. + // + for (typename delayed_loads::iterator i (delayed_.begin ()), + e (delayed_.end ()); i != e; ++i) + { + pointer_cache_traits::erase (i->pos); + } + + delayed_.clear (); + } + } +} diff --git a/libodb-mysql/odb/mysql/statement-cache.hxx b/libodb-mysql/odb/mysql/statement-cache.hxx new file mode 100644 index 0000000..1b62864 --- /dev/null +++ b/libodb-mysql/odb/mysql/statement-cache.hxx @@ -0,0 +1,60 @@ +// file : odb/mysql/statement-cache.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_STATEMENT_CACHE_HXX +#define ODB_MYSQL_STATEMENT_CACHE_HXX + +#include <odb/pre.hxx> + +#include <map> +#include <typeinfo> + +#include <odb/forward.hxx> +#include <odb/traits.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/statements-base.hxx> + +#include <odb/details/shared-ptr.hxx> +#include <odb/details/type-info.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT statement_cache + { + public: + statement_cache (connection& conn) + : conn_ (conn), + version_seq_ (conn_.database ().schema_version_sequence ()) {} + + template <typename T> + typename object_traits_impl<T, id_mysql>::statements_type& + find_object (); + + + template <typename T> + view_statements<T>& + find_view (); + + private: + typedef std::map<const std::type_info*, + details::shared_ptr<statements_base>, + details::type_info_comparator> map; + + connection& conn_; + unsigned int version_seq_; + map map_; + }; + } +} + +#include <odb/mysql/statement-cache.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_STATEMENT_CACHE_HXX diff --git a/libodb-mysql/odb/mysql/statement-cache.txx b/libodb-mysql/odb/mysql/statement-cache.txx new file mode 100644 index 0000000..c134f8d --- /dev/null +++ b/libodb-mysql/odb/mysql/statement-cache.txx @@ -0,0 +1,60 @@ +// file : odb/mysql/statement-cache.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/database.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + typename object_traits_impl<T, id_mysql>::statements_type& + statement_cache:: + find_object () + { + typedef + typename object_traits_impl<T, id_mysql>::statements_type + statements_type; + + // Clear the cache if the database version has changed. This + // makes sure we don't re-use statements that correspond to + // the old schema. + // + if (version_seq_ != conn_.database ().schema_version_sequence ()) + { + map_.clear (); + version_seq_ = conn_.database ().schema_version_sequence (); + } + + map::iterator i (map_.find (&typeid (T))); + + if (i != map_.end ()) + return static_cast<statements_type&> (*i->second); + + details::shared_ptr<statements_type> p ( + new (details::shared) statements_type (conn_)); + + map_.insert (map::value_type (&typeid (T), p)); + return *p; + } + + template <typename T> + view_statements<T>& statement_cache:: + find_view () + { + // We don't cache any statements for views so no need to clear + // the cache. + + map::iterator i (map_.find (&typeid (T))); + + if (i != map_.end ()) + return static_cast<view_statements<T>&> (*i->second); + + details::shared_ptr<view_statements<T> > p ( + new (details::shared) view_statements<T> (conn_)); + + map_.insert (map::value_type (&typeid (T), p)); + return *p; + } + } +} diff --git a/libodb-mysql/odb/mysql/statement.cxx b/libodb-mysql/odb/mysql/statement.cxx new file mode 100644 index 0000000..83f294a --- /dev/null +++ b/libodb-mysql/odb/mysql/statement.cxx @@ -0,0 +1,814 @@ +// file : odb/mysql/statement.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstring> // std::strlen, std::memmove, std::memset +#include <cassert> + +#include <odb/tracer.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/database.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/error.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + // statement + // + + statement:: + statement (connection_type& conn, + const string& text, + statement_kind sk, + const binding* process, + bool optimize) + : conn_ (conn) + { + if (process == 0) + { + text_copy_ = text; + text_ = text_copy_.c_str (); + } + else + text_ = text.c_str (); // Temporary, see init(). + + init (text.size (), sk, process, optimize); + } + + statement:: + statement (connection_type& conn, + const char* text, + statement_kind sk, + const binding* process, + bool optimize, + bool copy) + : conn_ (conn) + { + size_t n; + + if (process == 0 && copy) + { + text_copy_ = text; + text_ = text_copy_.c_str (); + n = text_copy_.size (); + } + else + { + text_ = text; // Potentially temporary, see init(). + n = strlen (text_); + } + + init (n, sk, process, optimize); + } + + void statement:: + init (size_t text_size, + statement_kind sk, + const binding* proc, + bool optimize) + { + if (proc != 0) + { + switch (sk) + { + case statement_select: + process_select (text_copy_, + text_, + &proc->bind->buffer, proc->count, sizeof (MYSQL_BIND), + '`', '`', + optimize); + break; + case statement_insert: + process_insert (text_copy_, + text_, + &proc->bind->buffer, proc->count, sizeof (MYSQL_BIND), + '?'); + break; + case statement_update: + process_update (text_copy_, + text_, + &proc->bind->buffer, proc->count, sizeof (MYSQL_BIND), + '?'); + break; + case statement_delete: + assert (false); + } + + text_ = text_copy_.c_str (); + text_size = text_copy_.size (); + } + + // Empty statement. + // + if (*text_ == '\0') + return; + + stmt_.reset (conn_.alloc_stmt_handle ()); + + conn_.clear (); + + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->prepare (conn_, *this); + } + + if (mysql_stmt_prepare (stmt_, + text_, + static_cast<unsigned long> (text_size)) != 0) + translate_error (conn_, stmt_); + } + + size_t statement:: + process_bind (MYSQL_BIND* b, size_t n) + { + size_t shifts (0); + for (MYSQL_BIND* e (b + n); b != e;) + { + if (b->buffer == 0) + { + // It is possible that this array has already been processed + // (shared among multiple statements). + // + if (b->length != 0) + { + n -= e - b; + break; + } + + e--; + + // Shift the rest of the entries to the left. + // + memmove (b, b + 1, (e - b) * sizeof (MYSQL_BIND)); + + // Store the original position of the NULL entry at the end. + // + e->buffer = 0; + e->length = reinterpret_cast<unsigned long*> (b + shifts); + + shifts++; + continue; + } + + b++; + } + + return n - shifts; + } + + void statement:: + restore_bind (MYSQL_BIND* b, size_t n) + { + for (MYSQL_BIND* e (b + n - 1); e->buffer == 0 && e->length != 0;) + { + MYSQL_BIND* p (reinterpret_cast<MYSQL_BIND*> (e->length)); + + // Shift the entries from the specified position to the right. + // + memmove (p + 1, p, (e - p) * sizeof (MYSQL_BIND)); + + // Restore the original NULL entry. + // + memset (p, 0, sizeof (MYSQL_BIND)); + } + } + + statement:: + ~statement () + { + if (stmt_ != 0) + { + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->deallocate (conn_, *this); + } + + // Let the connection handle the release of the statement (it + // may delay the actual freeing if it will mess up the currently + // active statement). + // + conn_.free_stmt_handle (stmt_); + } + } + + const char* statement:: + text () const + { + return text_; + } + + void statement:: + cancel () + { + } + + // select_statement + // + + select_statement:: + ~select_statement () + { + assert (freed_); + } + + select_statement:: + select_statement (connection_type& conn, + const string& text, + bool process, + bool optimize, + binding& param, + binding& result) + : statement (conn, + text, statement_select, + (process ? &result : 0), optimize), + end_ (false), + cached_ (false), + freed_ (true), + rows_ (0), + param_ (¶m), + param_version_ (0), + result_ (result), + result_version_ (0) + { + } + + select_statement:: + select_statement (connection_type& conn, + const char* text, + bool process, + bool optimize, + binding& param, + binding& result, + bool copy_text) + : statement (conn, + text, statement_select, + (process ? &result : 0), optimize, + copy_text), + end_ (false), + cached_ (false), + freed_ (true), + rows_ (0), + param_ (¶m), + param_version_ (0), + result_ (result), + result_version_ (0) + { + } + + select_statement:: + select_statement (connection_type& conn, + const string& text, + bool process, + bool optimize, + binding& result) + : statement (conn, + text, statement_select, + (process ? &result : 0), optimize), + end_ (false), + cached_ (false), + freed_ (true), + rows_ (0), + param_ (0), + result_ (result), + result_version_ (0) + { + } + + select_statement:: + select_statement (connection_type& conn, + const char* text, + bool process, + bool optimize, + binding& result, + bool copy_text) + : statement (conn, + text, statement_select, + (process ? &result : 0), optimize, + copy_text), + end_ (false), + cached_ (false), + freed_ (true), + rows_ (0), + param_ (0), + result_ (result), + result_version_ (0) + { + } + + void select_statement:: + execute () + { + assert (freed_); + + conn_.clear (); + + end_ = false; + rows_ = 0; + + if (mysql_stmt_reset (stmt_)) + translate_error (conn_, stmt_); + + if (param_ != 0 && param_version_ != param_->version) + { + // For now cannot have NULL entries. + // + if (mysql_stmt_bind_param (stmt_, param_->bind)) + translate_error (conn_, stmt_); + + param_version_ = param_->version; + } + + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->execute (conn_, *this); + } + + if (mysql_stmt_execute (stmt_)) + translate_error (conn_, stmt_); + + // This flag appears to be cleared once we start processing the + // result, so we have to cache it for free_result() below. + // +#if MYSQL_VERSION_ID >= 50503 + out_params_ = (conn_.handle ()->server_status & SERVER_PS_OUT_PARAMS); +#endif + + freed_ = false; + conn_.active (this); + } + + void select_statement:: + cache () + { + if (!cached_) + { + if (!end_) + { + if (mysql_stmt_store_result (stmt_)) + translate_error (conn_, stmt_); + + // mysql_stmt_num_rows() returns the number of rows that have been + // fetched by store_result. + // + size_ = rows_ + static_cast<size_t> (mysql_stmt_num_rows (stmt_)); + } + else + size_ = rows_; + + cached_ = true; + } + } + + select_statement::result select_statement:: + fetch (bool next) + { + if (result_version_ != result_.version) + { + size_t count (process_bind (result_.bind, result_.count)); + + // Make sure that the number of columns in the result returned by + // the database matches the number that we expect. A common cause + // of this assertion is a native view with a number of data members + // not matching the number of columns in the SELECT-list. + // + assert (mysql_stmt_field_count (stmt_) == count); + + if (mysql_stmt_bind_result (stmt_, result_.bind)) + translate_error (conn_, stmt_); + + if (count != result_.count) + restore_bind (result_.bind, result_.count); + + result_version_ = result_.version; + } + + if (!next && rows_ != 0) + { + assert (cached_); + mysql_stmt_data_seek (stmt_, static_cast<my_ulonglong> (rows_ - 1)); + } + + int r (mysql_stmt_fetch (stmt_)); + + switch (r) + { + case 0: + { + if (next) + rows_++; + return success; + } + case MYSQL_NO_DATA: + { + end_ = true; + return no_data; + } + case MYSQL_DATA_TRUNCATED: + { + if (next) + rows_++; + return truncated; + } + default: + { + translate_error (conn_, stmt_); + return no_data; // Never reached. + } + } + } + + void select_statement:: + refetch () + { + // Re-fetch columns that were truncated. + // + unsigned int col (0); + for (size_t i (0); i < result_.count; ++i) + { + MYSQL_BIND& b (result_.bind[i]); + + if (b.buffer == 0) // Skip NULL entries. + continue; + + if (*b.error) + { + *b.error = 0; + + if (mysql_stmt_fetch_column (stmt_, &b, col, 0)) + translate_error (conn_, stmt_); + } + + col++; + } + } + + void select_statement:: + free_result () + { + if (!freed_) + { + // If this is a stored procedure call, then we have multiple + // results. The first is the rowset that is the result of the + // procedure (actually, it can be several rowsets if, for + // example, the procedure executes multiple SELECT statements, + // but we don't support this). This result we have just handled. + // Next, there could be another rowset with just one row which + // contains the output variable values (OUT and INOUT; actually, + // if the procedure does not have any SELECT statements, then + // this will be the first result and we have just handled it). + // Finally, the last result is always the stored procedure status + // (not clear how to get this value; all MySQL sample code simply + // ignores it). + // + // So what we need to do here is read and ignore these other + // results since otherwise MySQL won't let us execute any + // subsequent statements. Calling mysql_stmt_next_result() + // until it tells us there is no more results seems to do + // the trick. + // + // mysql_stmt_next_result() is only available since 5.5.3. + // Checking the source code reveals that it does call + // mysql_next_result() (which is available prior to 5.5.3) + // but also does some other house keeping. So it is not + // clear if it is possible to emulate the below logic for + // prior MySQL versions. + // + + // Handling OUT parameters requires a special Voodoo dance: + // we have to fetch the row itself and we have to call fetch + // again and get MYSQL_NO_DATA. Without doing these exact + // steps the server simply drops the connection. Go figure. + // +#if MYSQL_VERSION_ID >= 50503 + if (out_params_) + { + if (mysql_stmt_fetch (stmt_) != MYSQL_NO_DATA) + translate_error (conn_, stmt_); + } +#endif + + if (mysql_stmt_free_result (stmt_)) + translate_error (conn_, stmt_); + +#if MYSQL_VERSION_ID >= 50503 + { + int s; + while ((s = mysql_stmt_next_result (stmt_)) == 0) + { + if (mysql_stmt_field_count (stmt_) != 0) + { + // The same Voodoo dance as above. + // + if (conn_.handle ()->server_status & SERVER_PS_OUT_PARAMS) + { + if (mysql_stmt_fetch (stmt_)) + translate_error (conn_, stmt_); + + if (mysql_stmt_fetch (stmt_) != MYSQL_NO_DATA) + translate_error (conn_, stmt_); + } + + if (mysql_stmt_free_result (stmt_)) + translate_error (conn_, stmt_); + } + } + + if (s != -1) + translate_error (conn_, stmt_); + } +#endif + + if (conn_.active () == this) + conn_.active (0); + + end_ = true; + cached_ = false; + freed_ = true; + rows_ = 0; + } + } + + void select_statement:: + cancel () + { + // If we cached the result, don't free it just yet. + // + if (!cached_ || end_) + free_result (); + else + conn_.active (0); + } + + // insert_statement + // + + insert_statement:: + ~insert_statement () + { + } + + insert_statement:: + insert_statement (connection_type& conn, + const string& text, + bool process, + binding& param, + binding* returning) + : statement (conn, + text, statement_insert, + (process ? ¶m : 0), false), + param_ (param), + param_version_ (0), + returning_ (returning) + { + } + + insert_statement:: + insert_statement (connection_type& conn, + const char* text, + bool process, + binding& param, + binding* returning, + bool copy_text) + : statement (conn, + text, statement_insert, + (process ? ¶m : 0), false, + copy_text), + param_ (param), + param_version_ (0), + returning_ (returning) + { + } + + bool insert_statement:: + execute () + { + conn_.clear (); + + if (mysql_stmt_reset (stmt_)) + translate_error (conn_, stmt_); + + if (param_version_ != param_.version) + { + size_t count (process_bind (param_.bind, param_.count)); + + if (mysql_stmt_bind_param (stmt_, param_.bind)) + translate_error (conn_, stmt_); + + if (count != param_.count) + restore_bind (param_.bind, param_.count); + + param_version_ = param_.version; + } + + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->execute (conn_, *this); + } + + if (mysql_stmt_execute (stmt_)) + { + // An auto-assigned object id should never cause a duplicate + // primary key. + // + if (returning_ == 0 && mysql_stmt_errno (stmt_) == ER_DUP_ENTRY) + return false; + else + translate_error (conn_, stmt_); + } + + if (returning_ != 0) + { + unsigned long long i (mysql_stmt_insert_id (stmt_)); + + MYSQL_BIND& b (returning_->bind[0]); + void* v (b.buffer); + + switch (b.buffer_type) + { + case MYSQL_TYPE_TINY: + *static_cast<unsigned char*> (v) = static_cast<unsigned char> (i); + break; + case MYSQL_TYPE_SHORT: + *static_cast<unsigned short*> (v) = static_cast<unsigned short> (i); + break; + case MYSQL_TYPE_LONG: + *static_cast<unsigned int*> (v) = static_cast<unsigned int> (i); + break; + case MYSQL_TYPE_LONGLONG: + *static_cast<unsigned long long*> (v) = i; + break; + default: + assert (false); // Auto id column type is not an integer. + } + + *b.is_null = false; + } + + return true; + } + + // update_statement + // + + update_statement:: + ~update_statement () + { + } + + update_statement:: + update_statement (connection_type& conn, + const string& text, + bool process, + binding& param) + : statement (conn, + text, statement_update, + (process ? ¶m : 0), false), + param_ (param), + param_version_ (0) + { + } + + update_statement:: + update_statement (connection_type& conn, + const char* text, + bool process, + binding& param, + bool copy_text) + : statement (conn, + text, statement_update, + (process ? ¶m : 0), false, + copy_text), + param_ (param), + param_version_ (0) + { + } + + unsigned long long update_statement:: + execute () + { + conn_.clear (); + + if (mysql_stmt_reset (stmt_)) + translate_error (conn_, stmt_); + + if (param_version_ != param_.version) + { + size_t count (process_bind (param_.bind, param_.count)); + + if (mysql_stmt_bind_param (stmt_, param_.bind)) + translate_error (conn_, stmt_); + + if (count != param_.count) + restore_bind (param_.bind, param_.count); + + param_version_ = param_.version; + } + + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->execute (conn_, *this); + } + + if (mysql_stmt_execute (stmt_)) + translate_error (conn_, stmt_); + + my_ulonglong r (mysql_stmt_affected_rows (stmt_)); + + if (r == static_cast<my_ulonglong> (-1)) + translate_error (conn_, stmt_); + + return static_cast<unsigned long long> (r); + } + + // delete_statement + // + + delete_statement:: + ~delete_statement () + { + } + + delete_statement:: + delete_statement (connection_type& conn, + const string& text, + binding& param) + : statement (conn, + text, statement_delete, + 0, false), + param_ (param), + param_version_ (0) + { + } + + delete_statement:: + delete_statement (connection_type& conn, + const char* text, + binding& param, + bool copy_text) + : statement (conn, + text, statement_delete, + 0, false, + copy_text), + param_ (param), + param_version_ (0) + { + } + + unsigned long long delete_statement:: + execute () + { + conn_.clear (); + + if (mysql_stmt_reset (stmt_)) + translate_error (conn_, stmt_); + + if (param_version_ != param_.version) + { + // Cannot have NULL entries for now. + // + if (mysql_stmt_bind_param (stmt_, param_.bind)) + translate_error (conn_, stmt_); + + param_version_ = param_.version; + } + + { + odb::tracer* t; + if ((t = conn_.transaction_tracer ()) || + (t = conn_.tracer ()) || + (t = conn_.database ().tracer ())) + t->execute (conn_, *this); + } + + if (mysql_stmt_execute (stmt_)) + translate_error (conn_, stmt_); + + my_ulonglong r (mysql_stmt_affected_rows (stmt_)); + + if (r == static_cast<my_ulonglong> (-1)) + translate_error (conn_, stmt_); + + return static_cast<unsigned long long> (r); + } + } +} diff --git a/libodb-mysql/odb/mysql/statement.hxx b/libodb-mysql/odb/mysql/statement.hxx new file mode 100644 index 0000000..b1465ea --- /dev/null +++ b/libodb-mysql/odb/mysql/statement.hxx @@ -0,0 +1,327 @@ +// file : odb/mysql/statement.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_STATEMENT_HXX +#define ODB_MYSQL_STATEMENT_HXX + +#include <odb/pre.hxx> + +#include <string> +#include <cstddef> // std::size_t + +#include <odb/statement.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/binding.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/auto-handle.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class connection; + + class LIBODB_MYSQL_EXPORT statement: public odb::statement + { + public: + typedef mysql::connection connection_type; + + virtual + ~statement () = 0; + + MYSQL_STMT* + handle () const + { + return stmt_; + } + + virtual const char* + text () const; + + virtual connection_type& + connection () + { + return conn_; + } + + // A statement can be empty. This is used to handle situations + // where a SELECT or UPDATE statement ends up not having any + // columns after processing. An empty statement cannot be + // executed. + // + bool + empty () const + { + return stmt_ == 0; + } + + // Cancel the statement execution (e.g., result fetching) so + // that another statement can be executed on the connection. + // + virtual void + cancel (); + + protected: + // We keep two versions to take advantage of std::string COW. + // + statement (connection_type&, + const std::string& text, + statement_kind, + const binding* process, + bool optimize); + + statement (connection_type&, + const char* text, + statement_kind, + const binding* process, + bool optimize, + bool copy_text); + + // Process the bind array so that all non-NULL entries are at + // the beginning. Return the actual number of bound columns. + // + static std::size_t + process_bind (MYSQL_BIND*, std::size_t n); + + // Restore the original locations of the NULL entries in the bind + // array. + // + static void + restore_bind (MYSQL_BIND*, std::size_t n); + + private: + void + init (std::size_t text_size, + statement_kind, + const binding* process, + bool optimize); + + protected: + connection_type& conn_; + std::string text_copy_; + const char* text_; + auto_handle<MYSQL_STMT> stmt_; + }; + + class LIBODB_MYSQL_EXPORT select_statement: public statement + { + public: + virtual + ~select_statement (); + + select_statement (connection_type& conn, + const std::string& text, + bool process_text, + bool optimize_text, + binding& param, + binding& result); + + select_statement (connection_type& conn, + const char* text, + bool process_text, + bool optimize_text, + binding& param, + binding& result, + bool copy_text = true); + + select_statement (connection_type& conn, + const std::string& text, + bool process_text, + bool optimize_text, + binding& result); + + select_statement (connection_type& conn, + const char* text, + bool process_text, + bool optimize_text, + binding& result, + bool copy_text = true); + + enum result + { + success, + no_data, + truncated + }; + + void + execute (); + + void + cache (); + + bool + cached () const + { + return cached_; + } + + // Can only be called on a cached result. + // + std::size_t + result_size () const + { + return size_; + } + + // Number of rows already fetched. + // + std::size_t + fetched () const + { + return rows_; + } + + // Fetch next or current row depending on the next argument. + // Note that fetching of the current row is only supported + // if the result is cached. + // + result + fetch (bool next = true); + + void + refetch (); + + void + free_result (); + + virtual void + cancel (); + + private: + select_statement (const select_statement&); + select_statement& operator= (const select_statement&); + + private: + bool end_; + bool cached_; + bool freed_; + std::size_t rows_; + std::size_t size_; + +#if MYSQL_VERSION_ID >= 50503 + bool out_params_; +#endif + + binding* param_; + std::size_t param_version_; + + binding& result_; + std::size_t result_version_; + }; + + struct LIBODB_MYSQL_EXPORT auto_result + { + explicit auto_result (select_statement& s): s_ (s) {} + ~auto_result () {s_.free_result ();} + + private: + auto_result (const auto_result&); + auto_result& operator= (const auto_result&); + + private: + select_statement& s_; + }; + + class LIBODB_MYSQL_EXPORT insert_statement: public statement + { + public: + virtual + ~insert_statement (); + + insert_statement (connection_type& conn, + const std::string& text, + bool process_text, + binding& param, + binding* returning); + + insert_statement (connection_type& conn, + const char* text, + bool process_text, + binding& param, + binding* returning, + bool copy_text = true); + + // Return true if successful and false if the row is a duplicate. + // All other errors are reported by throwing exceptions. + // + bool + execute (); + + private: + insert_statement (const insert_statement&); + insert_statement& operator= (const insert_statement&); + + private: + binding& param_; + std::size_t param_version_; + + binding* returning_; + }; + + class LIBODB_MYSQL_EXPORT update_statement: public statement + { + public: + virtual + ~update_statement (); + + update_statement (connection_type& conn, + const std::string& text, + bool process_text, + binding& param); + + update_statement (connection_type& conn, + const char* text, + bool process_text, + binding& param, + bool copy_text = true); + + unsigned long long + execute (); + + private: + update_statement (const update_statement&); + update_statement& operator= (const update_statement&); + + private: + binding& param_; + std::size_t param_version_; + }; + + class LIBODB_MYSQL_EXPORT delete_statement: public statement + { + public: + virtual + ~delete_statement (); + + delete_statement (connection_type& conn, + const std::string& text, + binding& param); + + delete_statement (connection_type& conn, + const char* text, + binding& param, + bool copy_text = true); + + unsigned long long + execute (); + + private: + delete_statement (const delete_statement&); + delete_statement& operator= (const delete_statement&); + + private: + binding& param_; + std::size_t param_version_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_STATEMENT_HXX diff --git a/libodb-mysql/odb/mysql/statements-base.cxx b/libodb-mysql/odb/mysql/statements-base.cxx new file mode 100644 index 0000000..3e1bcc6 --- /dev/null +++ b/libodb-mysql/odb/mysql/statements-base.cxx @@ -0,0 +1,15 @@ +// file : odb/mysql/statements-base.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/statements-base.hxx> + +namespace odb +{ + namespace mysql + { + statements_base:: + ~statements_base () + { + } + } +} diff --git a/libodb-mysql/odb/mysql/statements-base.hxx b/libodb-mysql/odb/mysql/statements-base.hxx new file mode 100644 index 0000000..93e72d2 --- /dev/null +++ b/libodb-mysql/odb/mysql/statements-base.hxx @@ -0,0 +1,63 @@ +// file : odb/mysql/statements-base.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_STATEMENTS_BASE_HXX +#define ODB_MYSQL_STATEMENTS_BASE_HXX + +#include <odb/pre.hxx> + +#include <odb/schema-version.hxx> +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/database.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT statements_base: public details::shared_base + { + public: + typedef mysql::connection connection_type; + + connection_type& + connection () + { + return conn_; + } + + // Schema version. database::schema_version_migration() is thread- + // safe which means it is also slow. Cache the result in statements + // so we can avoid the mutex lock. This is thread-safe since if the + // version is updated, then the statements cache will be expired. + // + const schema_version_migration& + version_migration (const char* name = "") const + { + if (svm_ == 0) + svm_ = &conn_.database ().schema_version_migration (name); + + return *svm_; + } + + public: + virtual + ~statements_base (); + + protected: + statements_base (connection_type& conn): conn_ (conn), svm_ (0) {} + + protected: + connection_type& conn_; + mutable const schema_version_migration* svm_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_STATEMENTS_BASE_HXX diff --git a/libodb-mysql/odb/mysql/tracer.cxx b/libodb-mysql/odb/mysql/tracer.cxx new file mode 100644 index 0000000..da39633 --- /dev/null +++ b/libodb-mysql/odb/mysql/tracer.cxx @@ -0,0 +1,60 @@ +// file : odb/mysql/tracer.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/tracer.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/statement.hxx> + +namespace odb +{ + namespace mysql + { + tracer:: + ~tracer () + { + } + + void tracer:: + prepare (connection&, const statement&) + { + } + + void tracer:: + execute (connection& c, const statement& s) + { + execute (c, s.text ()); + } + + void tracer:: + deallocate (connection&, const statement&) + { + } + + void tracer:: + prepare (odb::connection& c, const odb::statement& s) + { + prepare (static_cast<connection&> (c), + static_cast<const statement&> (s)); + } + + void tracer:: + execute (odb::connection& c, const odb::statement& s) + { + execute (static_cast<connection&> (c), + static_cast<const statement&> (s)); + } + + void tracer:: + execute (odb::connection& c, const char* s) + { + execute (static_cast<connection&> (c), s); + } + + void tracer:: + deallocate (odb::connection& c, const odb::statement& s) + { + deallocate (static_cast<connection&> (c), + static_cast<const statement&> (s)); + } + } +} diff --git a/libodb-mysql/odb/mysql/tracer.hxx b/libodb-mysql/odb/mysql/tracer.hxx new file mode 100644 index 0000000..03ca6df --- /dev/null +++ b/libodb-mysql/odb/mysql/tracer.hxx @@ -0,0 +1,61 @@ +// file : odb/mysql/tracer.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_TRACER_HXX +#define ODB_MYSQL_TRACER_HXX + +#include <odb/pre.hxx> + +#include <odb/tracer.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT tracer: private odb::tracer + { + public: + virtual + ~tracer (); + + virtual void + prepare (connection&, const statement&); + + virtual void + execute (connection&, const statement&); + + virtual void + execute (connection&, const char* statement) = 0; + + virtual void + deallocate (connection&, const statement&); + + private: + // Allow these classes to convert mysql::tracer to odb::tracer. + // + friend class database; + friend class connection; + friend class transaction; + + virtual void + prepare (odb::connection&, const odb::statement&); + + virtual void + execute (odb::connection&, const odb::statement&); + + virtual void + execute (odb::connection&, const char* statement); + + virtual void + deallocate (odb::connection&, const odb::statement&); + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_TRACER_HXX diff --git a/libodb-mysql/odb/mysql/traits-calls.hxx b/libodb-mysql/odb/mysql/traits-calls.hxx new file mode 100644 index 0000000..f6b2ab6 --- /dev/null +++ b/libodb-mysql/odb/mysql/traits-calls.hxx @@ -0,0 +1,210 @@ +// file : odb/mysql/traits-calls.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_TRAITS_CALLS_HXX +#define ODB_MYSQL_TRAITS_CALLS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/schema-version.hxx> +#include <odb/traits.hxx> + +#include <odb/mysql/forward.hxx> +#include <odb/mysql/mysql-types.hxx> + +namespace odb +{ + namespace mysql + { + // + // object_traits_calls + // + + template <typename T, + bool versioned = object_traits_impl<T, id_mysql>::versioned> + struct object_traits_calls; + + template <typename T> + struct object_traits_calls<T, false> + { + typedef object_traits_impl<T, id_mysql> traits; + typedef typename traits::image_type image_type; + + object_traits_calls (const schema_version_migration*) {} + + const schema_version_migration* + version () const {return 0;} + + static bool + grow (image_type& i, my_bool* t) + { + return traits::grow (i, t); + } + + static void + bind (MYSQL_BIND* b, image_type& i, statement_kind sk) + { + traits::bind (b, i, sk); + } + + // Poly-derived version. + // + static void + bind (MYSQL_BIND* b, + const MYSQL_BIND* id, std::size_t id_size, + image_type& i, + statement_kind sk) + { + traits::bind (b, id, id_size, i, sk); + } + + static void + init (T& o, const image_type& i, odb::database* db) + { + traits::init (o, i, db); + } + + static bool + find_ (typename traits::statements_type& sts, + const typename traits::id_type* id) + { + return traits::find_ (sts, id); + } + + static void + load_ (typename traits::statements_type& sts, T& o, bool reload) + { + return traits::load_ (sts, o, reload); + } + }; + + template <typename T> + struct object_traits_calls<T, true> + { + typedef object_traits_impl<T, id_mysql> traits; + typedef typename traits::image_type image_type; + + object_traits_calls (const schema_version_migration* svm): svm_ (*svm) {} + + const schema_version_migration* + version () const {return &svm_;} + + bool + grow (image_type& i, my_bool* t) const + { + return traits::grow (i, t, svm_); + } + + void + bind (MYSQL_BIND* b, image_type& i, statement_kind sk) const + { + traits::bind (b, i, sk, svm_); + } + + // Poly-derived version. + // + void + bind (MYSQL_BIND* b, + const MYSQL_BIND* id, std::size_t id_size, + image_type& i, + statement_kind sk) const + { + traits::bind (b, id, id_size, i, sk, svm_); + } + + void + init (T& o, const image_type& i, odb::database* db) const + { + traits::init (o, i, db, svm_); + } + + bool + find_ (typename traits::statements_type& sts, + const typename traits::id_type* id) const + { + return traits::find_ (sts, id, svm_); + } + + void + load_ (typename traits::statements_type& sts, T& o, bool reload) const + { + return traits::load_ (sts, o, reload, svm_); + } + + private: + const schema_version_migration& svm_; + }; + + // + // view_traits_calls + // + + template <typename T, + bool versioned = view_traits_impl<T, id_mysql>::versioned> + struct view_traits_calls; + + template <typename T> + struct view_traits_calls<T, false> + { + typedef view_traits_impl<T, id_mysql> traits; + typedef typename traits::image_type image_type; + + view_traits_calls (const schema_version_migration*) {} + + static bool + grow (image_type& i, my_bool* t) + { + return traits::grow (i, t); + } + + static void + bind (MYSQL_BIND* b, image_type& i) + { + traits::bind (b, i); + } + + static void + init (T& o, const image_type& i, odb::database* db) + { + traits::init (o, i, db); + } + }; + + template <typename T> + struct view_traits_calls<T, true> + { + typedef view_traits_impl<T, id_mysql> traits; + typedef typename traits::image_type image_type; + + view_traits_calls (const schema_version_migration* svm): svm_ (*svm) {} + + bool + grow (image_type& i, my_bool* t) const + { + return traits::grow (i, t, svm_); + } + + void + bind (MYSQL_BIND* b, image_type& i) const + { + traits::bind (b, i, svm_); + } + + void + init (T& o, const image_type& i, odb::database* db) const + { + traits::init (o, i, db, svm_); + } + + private: + const schema_version_migration& svm_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_TRAITS_CALLS_HXX diff --git a/libodb-mysql/odb/mysql/traits.cxx b/libodb-mysql/odb/mysql/traits.cxx new file mode 100644 index 0000000..9fbdbb4 --- /dev/null +++ b/libodb-mysql/odb/mysql/traits.cxx @@ -0,0 +1,145 @@ +// file : odb/mysql/traits.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/traits.hxx> + +using namespace std; + +namespace odb +{ + namespace mysql + { + using details::buffer; + + // + // string_value_traits + // + + void string_value_traits:: + set_image (buffer& b, + size_t& n, + bool& is_null, + const string& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v.c_str (), n); + } + + // + // c_string_value_traits + // + + void c_string_value_traits:: + set_image (buffer& b, + size_t& n, + bool& is_null, + const char* v) + { + is_null = false; + n = strlen (v); + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } + + // + // c_array_value_traits_base + // + void c_array_value_traits_base:: + set_value (char* const& v, + const details::buffer& b, + size_t n, + bool is_null, + size_t N) + { + if (!is_null) + { + n = n < N ? n : N; + + if (n != 0) + memcpy (v, b.data (), n); + } + else + n = 0; + + if (n != N) // Append '\0' if there is space. + v[n] = '\0'; + } + + void c_array_value_traits_base:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const char* v, + size_t N) + { + is_null = false; + + // Figure out the length. We cannot use strlen since it may + // not be 0-terminated (strnlen is not standard). + // + for (n = 0; n != N && v[n] != '\0'; ++n) ; + + if (n > b.capacity ()) + b.capacity (n); + + if (n != 0) + memcpy (b.data (), v, n); + } + + // + // default_value_traits<vector<char>, id_blob> + // + // std::vector has to be qualified for Sun CC. + // + void default_value_traits<std::vector<char>, id_blob>:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + // std::vector::data() may not be available in older compilers. + // + if (n != 0) + memcpy (b.data (), &v.front (), n); + } + + // + // default_value_traits<vector<unsigned char>, id_blob> + // + // std::vector has to be qualified for Sun CC. + // + void default_value_traits<std::vector<unsigned char>, id_blob>:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + // std::vector::data() may not be available in older compilers. + // + if (n != 0) + memcpy (b.data (), &v.front (), n); + } + } +} diff --git a/libodb-mysql/odb/mysql/traits.hxx b/libodb-mysql/odb/mysql/traits.hxx new file mode 100644 index 0000000..e76f7e7 --- /dev/null +++ b/libodb-mysql/odb/mysql/traits.hxx @@ -0,0 +1,988 @@ +// file : odb/mysql/traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_TRAITS_HXX +#define ODB_MYSQL_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <odb/details/config.hxx> // ODB_CXX11 + +#include <string> +#include <vector> +#include <cstddef> // std::size_t +#include <cstring> // std::memcpy, std::memset, std::strlen + +#ifdef ODB_CXX11 +# include <array> +#endif + +#include <odb/traits.hxx> +#include <odb/wrapper-traits.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/mysql-types.hxx> + +#include <odb/details/buffer.hxx> +#include <odb/details/wrapper-p.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + enum database_type_id + { + id_tiny, + id_utiny, + id_short, + id_ushort, + id_long, + id_ulong, + id_longlong, + id_ulonglong, + + id_float, + id_double, + id_decimal, + + id_date, + id_time, + id_datetime, + id_timestamp, + id_year, + + id_string, + id_blob, + + id_bit, + id_enum, + id_set + }; + + // + // image_traits + // + + template <database_type_id> + struct image_traits; + + template <> + struct image_traits<id_tiny> {typedef signed char image_type;}; + + template <> + struct image_traits<id_utiny> {typedef unsigned char image_type;}; + + template <> + struct image_traits<id_short> {typedef short image_type;}; + + template <> + struct image_traits<id_ushort> {typedef unsigned short image_type;}; + + template <> + struct image_traits<id_long> {typedef int image_type;}; + + template <> + struct image_traits<id_ulong> {typedef unsigned int image_type;}; + + template <> + struct image_traits<id_longlong> {typedef long long image_type;}; + + template <> + struct image_traits<id_ulonglong> {typedef unsigned long long image_type;}; + + template <> + struct image_traits<id_float> {typedef float image_type;}; + + template <> + struct image_traits<id_double> {typedef double image_type;}; + + template <> + struct image_traits<id_decimal> {typedef details::buffer image_type;}; + + template <> + struct image_traits<id_date> {typedef MYSQL_TIME image_type;}; + + template <> + struct image_traits<id_time> {typedef MYSQL_TIME image_type;}; + + template <> + struct image_traits<id_datetime> {typedef MYSQL_TIME image_type;}; + + template <> + struct image_traits<id_timestamp> {typedef MYSQL_TIME image_type;}; + + template <> + struct image_traits<id_year> {typedef short image_type;}; + + template <> + struct image_traits<id_string> {typedef details::buffer image_type;}; + + template <> + struct image_traits<id_blob> {typedef details::buffer image_type;}; + + template <> + struct image_traits<id_bit> {typedef unsigned char* image_type;}; + + // Note: default mapping is to integer. Alternative mapping is to + // string. + // + template <> + struct image_traits<id_enum> {typedef unsigned short image_type;}; + + template <> + struct image_traits<id_set> {typedef details::buffer image_type;}; + + // + // value_traits + // + + template <typename W, database_type_id, bool null_handler> + struct wrapped_value_traits; + + template <typename T, database_type_id> + struct default_value_traits; + + template <typename T, database_type_id, bool w = details::wrapper_p<T>::r> + struct select_traits; + + template <typename T, database_type_id ID> + struct select_traits<T, ID, false> + { + typedef default_value_traits<T, ID> type; + }; + + template <typename W, database_type_id ID> + struct select_traits<W, ID, true> + { + typedef + wrapped_value_traits<W, ID, wrapper_traits<W>::null_handler> + type; + }; + + template <typename T, database_type_id ID> + class value_traits: public select_traits<T, ID>::type + { + }; + + // The wrapped_value_traits specializations should be able to handle + // any value type which means we have to have every possible signature + // of the set_value() and set_image() functions. + // + template <typename W, database_type_id ID> + struct wrapped_value_traits<W, ID, false> + { + typedef wrapper_traits<W> wtraits; + typedef typename wtraits::unrestricted_wrapped_type wrapped_type; + + typedef W value_type; + typedef wrapped_type query_type; + typedef typename image_traits<ID>::image_type image_type; + + typedef value_traits<wrapped_type, ID> vtraits; + + static void + set_value (W& v, const image_type& i, bool is_null) + { + vtraits::set_value (wtraits::set_ref (v), i, is_null); + } + + static void + set_image (image_type& i, bool& is_null, const W& v) + { + vtraits::set_image (i, is_null, wtraits::get_ref (v)); + } + + // String, BLOB, ENUM, and SET. + // + static void + set_value (W& v, const details::buffer& b, std::size_t n, bool is_null) + { + vtraits::set_value (wtraits::set_ref (v), b, n, is_null); + } + + static void + set_image (details::buffer& b, std::size_t& n, bool& is_null, const W& v) + { + vtraits::set_image (b, n, is_null, wtraits::get_ref (v)); + } + + // BIT. + // + static void + set_value (W& v, const unsigned char* i, std::size_t n, bool is_null) + { + vtraits::set_value (wtraits::set_ref (v), i, n, is_null); + } + + static void + set_image (unsigned char* i, + std::size_t c, + std::size_t& n, + bool& is_null, + const W& v) + { + vtraits::set_image (i, c, n, is_null, wtraits::get_ref (v)); + } + }; + + template <typename W, database_type_id ID> + struct wrapped_value_traits<W, ID, true> + { + typedef wrapper_traits<W> wtraits; + typedef typename wtraits::unrestricted_wrapped_type wrapped_type; + + typedef W value_type; + typedef wrapped_type query_type; + typedef typename image_traits<ID>::image_type image_type; + + typedef value_traits<wrapped_type, ID> vtraits; + + static void + set_value (W& v, const image_type& i, bool is_null) + { + if (is_null) + wtraits::set_null (v); + else + vtraits::set_value (wtraits::set_ref (v), i, is_null); + } + + static void + set_image (image_type& i, bool& is_null, const W& v) + { + is_null = wtraits::get_null (v); + + if (!is_null) + vtraits::set_image (i, is_null, wtraits::get_ref (v)); + } + + // String, BLOB, ENUM, and SET. + // + static void + set_value (W& v, const details::buffer& b, std::size_t n, bool is_null) + { + if (is_null) + wtraits::set_null (v); + else + vtraits::set_value (wtraits::set_ref (v), b, n, is_null); + } + + static void + set_image (details::buffer& b, std::size_t& n, bool& is_null, const W& v) + { + is_null = wtraits::get_null (v); + + if (!is_null) + vtraits::set_image (b, n, is_null, wtraits::get_ref (v)); + } + + // BIT. + // + static void + set_value (W& v, const unsigned char* i, std::size_t n, bool is_null) + { + if (is_null) + wtraits::set_null (v); + else + vtraits::set_value (wtraits::set_ref (v), i, n, is_null); + } + + static void + set_image (unsigned char* i, + std::size_t c, + std::size_t& n, + bool& is_null, + const W& v) + { + is_null = wtraits::get_null (v); + + if (!is_null) + vtraits::set_image (i, c, n, is_null, wtraits::get_ref (v)); + } + }; + + template <typename T, database_type_id ID> + struct default_value_traits + { + typedef T value_type; + typedef T query_type; + typedef typename image_traits<ID>::image_type image_type; + + static void + set_value (T& v, const image_type& i, bool is_null) + { + if (!is_null) + v = T (i); + else + v = T (); + } + + static void + set_image (image_type& i, bool& is_null, T v) + { + is_null = false; + i = image_type (v); + } + }; + + // Specialization for numeric enum representations (C++ enum, integer + // types, etc). In particular, this specialization works only for C++ + // enum type as long as its numeric value space starts with 0, is + // ascending and contiguous (i.e., the default enumerator assignment). + // + template <typename T> + struct default_value_traits<T, id_enum> + { + typedef T value_type; + typedef T query_type; + typedef unsigned short image_type; + + static void + set_value (T& v, unsigned short i, bool is_null) + { + // In MySQL first enumerator has index 1. + // + if (!is_null) + v = static_cast<T> (i - 1); + else + v = T (); + } + + static void + set_image (unsigned short& i, bool& is_null, const T& v) + { + is_null = false; + i = static_cast<unsigned short> (v) + 1; + } + }; + + // std::string specialization. + // + class LIBODB_MYSQL_EXPORT string_value_traits + { + public: + typedef std::string value_type; + typedef std::string query_type; + typedef details::buffer image_type; + + static void + set_value (std::string& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + v.assign (b.data (), n); + else + v.erase (); + } + + static void + set_image (details::buffer&, + std::size_t& n, + bool& is_null, + const std::string&); + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<std::string, id_string>: + string_value_traits + { + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<std::string, id_decimal>: + string_value_traits + { + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<std::string, id_enum>: + string_value_traits + { + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<std::string, id_set>: + string_value_traits + { + }; + + // char*/const char* specialization + // + // Specialization for const char* which only supports initialization + // of an image from the value but not the other way around. This way + // we can pass such values to the queries. + // + class LIBODB_MYSQL_EXPORT c_string_value_traits + { + public: + typedef const char* value_type; + typedef details::buffer image_type; + + static void + set_image (details::buffer&, + std::size_t& n, + bool& is_null, + const char*); + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char*, id_string>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char*, id_decimal>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char*, id_enum>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char*, id_set>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<const char*, id_string>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<const char*, id_decimal>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<const char*, id_enum>: + c_string_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<const char*, id_set>: + c_string_value_traits {}; + + // char[N] specializations. + // + struct LIBODB_MYSQL_EXPORT c_array_value_traits_base + { + static void + set_value (char* const& v, + const details::buffer& b, + std::size_t n, + bool is_null, + std::size_t N); + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const char* v, + std::size_t N); + }; + + template <std::size_t N> + struct c_array_value_traits + { + typedef char* value_type; + typedef char query_type[N]; + typedef details::buffer image_type; + + static void + set_value (char* const& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + c_array_value_traits_base::set_value (v, b, n, is_null, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const char* v) + { + c_array_value_traits_base::set_image (b, n, is_null, v, N); + } + }; + + template <std::size_t N> + struct default_value_traits<char[N], id_string>: c_array_value_traits<N> + {}; + + template <std::size_t N> + struct default_value_traits<char[N], id_decimal>: c_array_value_traits<N> + {}; + + template <std::size_t N> + struct default_value_traits<char[N], id_enum>: c_array_value_traits<N> + {}; + + template <std::size_t N> + struct default_value_traits<char[N], id_set>: c_array_value_traits<N> + {}; + + // std::array<char, N> (string) specialization. + // +#ifdef ODB_CXX11 + template <std::size_t N> + struct std_array_value_traits + { + typedef std::array<char, N> value_type; + typedef std::array<char, N> query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + c_array_value_traits_base::set_value (v.data (), b, n, is_null, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const value_type& v) + { + c_array_value_traits_base::set_image (b, n, is_null, v.data (), N); + } + }; + + template <std::size_t N> + struct default_value_traits<std::array<char, N>, id_string>: + std_array_value_traits<N> {}; + + template <std::size_t N> + struct default_value_traits<std::array<char, N>, id_decimal>: + std_array_value_traits<N> {}; + + template <std::size_t N> + struct default_value_traits<std::array<char, N>, id_enum>: + std_array_value_traits<N> {}; + + template <std::size_t N> + struct default_value_traits<std::array<char, N>, id_set>: + std_array_value_traits<N> {}; +#endif + + // char specialization. + // + struct LIBODB_MYSQL_EXPORT char_value_traits + { + typedef char value_type; + typedef char query_type; + typedef details::buffer image_type; + + static void + set_value (char& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + c_array_value_traits_base::set_value (&v, b, n, is_null, 1); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + char v) + { + c_array_value_traits_base::set_image (b, n, is_null, &v, 1); + } + }; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char, id_string>: + char_value_traits {}; + + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<char, id_enum>: + char_value_traits {}; + + // std::vector<char> (buffer) specialization. + // + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits<std::vector<char>, id_blob> + { + public: + typedef std::vector<char> value_type; + typedef std::vector<char> query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + v.assign (b.data (), b.data () + n); + else + v.clear (); + } + + static void + set_image (details::buffer&, + std::size_t& n, + bool& is_null, + const value_type&); + }; + + // std::vector<unsigned char> (buffer) specialization. + // + template <> + struct LIBODB_MYSQL_EXPORT default_value_traits< + std::vector<unsigned char>, id_blob> + { + public: + typedef std::vector<unsigned char> value_type; + typedef std::vector<unsigned char> query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + { + const unsigned char* d ( + reinterpret_cast<const unsigned char*> (b.data ())); + v.assign (d, d + n); + } + else + v.clear (); + } + + static void + set_image (details::buffer&, + std::size_t& n, + bool& is_null, + const value_type&); + }; + + // char[N] (buffer) specialization. + // + template <std::size_t N> + struct default_value_traits<char[N], id_blob> + { + public: + typedef char* value_type; + typedef char query_type[N]; + typedef details::buffer image_type; + + static void + set_value (char* const& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + std::memcpy (v, b.data (), (n < N ? n : N)); + else + std::memset (v, 0, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const char* v) + { + is_null = false; + n = N; + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v, n); + } + }; + + // unsigned char[N] (buffer) specialization. + // + template <std::size_t N> + struct default_value_traits<unsigned char[N], id_blob> + { + public: + typedef unsigned char* value_type; + typedef unsigned char query_type[N]; + typedef details::buffer image_type; + + static void + set_value (unsigned char* const& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + std::memcpy (v, b.data (), (n < N ? n : N)); + else + std::memset (v, 0, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const unsigned char* v) + { + is_null = false; + n = N; + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v, n); + } + }; + +#ifdef ODB_CXX11 + // std::array<char, N> (buffer) specialization. + // + template <std::size_t N> + struct default_value_traits<std::array<char, N>, id_blob> + { + public: + typedef std::array<char, N> value_type; + typedef value_type query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + std::memcpy (v.data (), b.data (), (n < N ? n : N)); + else + std::memset (v.data (), 0, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = N; + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v.data (), n); + } + }; + + // std::array<unsigned char, N> (buffer) specialization. + // + template <std::size_t N> + struct default_value_traits<std::array<unsigned char, N>, id_blob> + { + public: + typedef std::array<unsigned char, N> value_type; + typedef value_type query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + std::memcpy (v.data (), b.data (), (n < N ? n : N)); + else + std::memset (v.data (), 0, N); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = N; + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v.data (), n); + } + }; +#endif + + // + // type_traits + // + + template <typename T> + struct default_type_traits; + + template <typename T> + class type_traits: public default_type_traits<T> + { + }; + + // Integral types. + // + template <> + struct default_type_traits<bool> + { + static const database_type_id db_type_id = id_tiny; + }; + + template <> + struct default_type_traits<signed char> + { + static const database_type_id db_type_id = id_tiny; + }; + + template <> + struct default_type_traits<unsigned char> + { + static const database_type_id db_type_id = id_utiny; + }; + + template <> + struct default_type_traits<short> + { + static const database_type_id db_type_id = id_short; + }; + + template <> + struct default_type_traits<unsigned short> + { + static const database_type_id db_type_id = id_ushort; + }; + + template <> + struct default_type_traits<int> + { + static const database_type_id db_type_id = id_long; + }; + + template <> + struct default_type_traits<unsigned int> + { + static const database_type_id db_type_id = id_ulong; + }; + + template <> + struct default_type_traits<long> + { + static const database_type_id db_type_id = id_longlong; + }; + + template <> + struct default_type_traits<unsigned long> + { + static const database_type_id db_type_id = id_ulonglong; + }; + + template <> + struct default_type_traits<long long> + { + static const database_type_id db_type_id = id_longlong; + }; + + template <> + struct default_type_traits<unsigned long long> + { + static const database_type_id db_type_id = id_ulonglong; + }; + + // Float types. + // + template <> + struct default_type_traits<float> + { + static const database_type_id db_type_id = id_float; + }; + + template <> + struct default_type_traits<double> + { + static const database_type_id db_type_id = id_double; + }; + + // String types. + // + template <> + struct default_type_traits<std::string> + { + static const database_type_id db_type_id = id_string; + }; + + template <> + struct default_type_traits<char*> + { + static const database_type_id db_type_id = id_string; + }; + + template <> + struct default_type_traits<const char*> + { + static const database_type_id db_type_id = id_string; + }; + + template <std::size_t N> + struct default_type_traits<char[N]> + { + static const database_type_id db_type_id = id_string; + }; + +#ifdef ODB_CXX11 + template <std::size_t N> + struct default_type_traits<std::array<char, N> > + { + static const database_type_id db_type_id = id_string; + }; +#endif + + template <> + struct default_type_traits<char> + { + static const database_type_id db_type_id = id_string; + }; + + // Binary types. + // + template <std::size_t N> + struct default_type_traits<unsigned char[N]> + { + static const database_type_id db_type_id = id_blob; + }; + + template <> + struct default_type_traits<std::vector<char> > + { + static const database_type_id db_type_id = id_blob; + }; + + template <> + struct default_type_traits<std::vector<unsigned char> > + { + static const database_type_id db_type_id = id_blob; + }; + +#ifdef ODB_CXX11 + template <std::size_t N> + struct default_type_traits<std::array<unsigned char, N> > + { + static const database_type_id db_type_id = id_blob; + }; +#endif + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_TRAITS_HXX diff --git a/libodb-mysql/odb/mysql/transaction-impl.cxx b/libodb-mysql/odb/mysql/transaction-impl.cxx new file mode 100644 index 0000000..0ca1546 --- /dev/null +++ b/libodb-mysql/odb/mysql/transaction-impl.cxx @@ -0,0 +1,108 @@ +// file : odb/mysql/transaction-impl.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/tracer.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/database.hxx> +#include <odb/mysql/connection.hxx> +#include <odb/mysql/error.hxx> +#include <odb/mysql/transaction-impl.hxx> + +namespace odb +{ + namespace mysql + { + transaction_impl:: + transaction_impl (database_type& db) + : odb::transaction_impl (db) + { + } + + transaction_impl:: + transaction_impl (connection_ptr c) + : odb::transaction_impl (c->database (), *c), connection_ (c) + { + } + + transaction_impl:: + ~transaction_impl () + { + } + + void transaction_impl:: + start () + { + // Grab a connection if we don't already have one. + // + if (connection_ == 0) + { + connection_ = static_cast<database_type&> (database_).connection (); + odb::transaction_impl::connection_ = connection_.get (); + } + + { + odb::tracer* t; + if ((t = connection_->tracer ()) || (t = database_.tracer ())) + t->execute (*connection_, "BEGIN"); + } + + if (mysql_real_query (connection_->handle (), "begin", 5) != 0) + translate_error (*connection_); + } + + void transaction_impl:: + commit () + { + // Invalidate query results. + // + connection_->invalidate_results (); + + // Cancel and clear the active statement if any. This normally + // should happen automatically, however, if an exception is + // thrown, this may not be the case. + // + connection_->clear (); + + { + odb::tracer* t; + if ((t = connection_->tracer ()) || (t = database_.tracer ())) + t->execute (*connection_, "COMMIT"); + } + + if (mysql_real_query (connection_->handle (), "commit", 6) != 0) + translate_error (*connection_); + + // Release the connection. + // + connection_.reset (); + } + + void transaction_impl:: + rollback () + { + // Invalidate query results. + // + connection_->invalidate_results (); + + // Cancel and clear the active statement if any. This normally + // should happen automatically, however, if an exception is + // thrown, this may not be the case. + // + connection_->clear (); + + { + odb::tracer* t; + if ((t = connection_->tracer ()) || (t = database_.tracer ())) + t->execute (*connection_, "ROLLBACK"); + } + + if (mysql_real_query (connection_->handle (), "rollback", 8) != 0) + translate_error (*connection_); + + // Release the connection. + // + connection_.reset (); + } + } +} diff --git a/libodb-mysql/odb/mysql/transaction-impl.hxx b/libodb-mysql/odb/mysql/transaction-impl.hxx new file mode 100644 index 0000000..d87ad35 --- /dev/null +++ b/libodb-mysql/odb/mysql/transaction-impl.hxx @@ -0,0 +1,49 @@ +// file : odb/mysql/transaction-impl.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_TRANSACTION_IMPL_HXX +#define ODB_MYSQL_TRANSACTION_IMPL_HXX + +#include <odb/pre.hxx> + +#include <odb/transaction.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class LIBODB_MYSQL_EXPORT transaction_impl: public odb::transaction_impl + { + public: + typedef mysql::database database_type; + typedef mysql::connection connection_type; + + transaction_impl (database_type&); + transaction_impl (connection_ptr); + + virtual + ~transaction_impl (); + + virtual void + start (); + + virtual void + commit (); + + virtual void + rollback (); + + private: + connection_ptr connection_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_TRANSACTION_IMPL_HXX diff --git a/libodb-mysql/odb/mysql/transaction.cxx b/libodb-mysql/odb/mysql/transaction.cxx new file mode 100644 index 0000000..5d59fad --- /dev/null +++ b/libodb-mysql/odb/mysql/transaction.cxx @@ -0,0 +1,26 @@ +// file : odb/mysql/transaction.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cassert> + +#include <odb/mysql/transaction.hxx> + +namespace odb +{ + namespace mysql + { + transaction& transaction:: + current () + { + // While the impl type can be of the concrete type, the transaction + // object can be created as either odb:: or odb::mysql:: type. To + // work around that we are going to hard-cast one two the other + // relying on the fact that they have the same representation and + // no virtual functions. The former is checked in the tests. + // + odb::transaction& b (odb::transaction::current ()); + assert (dynamic_cast<transaction_impl*> (&b.implementation ()) != 0); + return reinterpret_cast<transaction&> (b); + } + } +} diff --git a/libodb-mysql/odb/mysql/transaction.hxx b/libodb-mysql/odb/mysql/transaction.hxx new file mode 100644 index 0000000..0f5ae6f --- /dev/null +++ b/libodb-mysql/odb/mysql/transaction.hxx @@ -0,0 +1,88 @@ +// file : odb/mysql/transaction.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_TRANSACTION_HXX +#define ODB_MYSQL_TRANSACTION_HXX + +#include <odb/pre.hxx> + +#include <odb/transaction.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> +#include <odb/mysql/tracer.hxx> + +#include <odb/mysql/details/export.hxx> + +namespace odb +{ + namespace mysql + { + class transaction_impl; + + class LIBODB_MYSQL_EXPORT transaction: public odb::transaction + { + public: + typedef mysql::database database_type; + typedef mysql::connection connection_type; + + explicit + transaction (transaction_impl*, bool make_current = true); + + transaction (); + + // Return the database this transaction is on. + // + database_type& + database (); + + // Return the underlying database connection for this transaction. + // + connection_type& + connection (); + + connection_type& + connection (odb::database&); + + // Return current transaction or throw if there is no transaction + // in effect. + // + static transaction& + current (); + + // Set the current thread's transaction. + // + static void + current (transaction&); + + // SQL statement tracing. + // + public: + typedef mysql::tracer tracer_type; + + void + tracer (tracer_type& t) + { + odb::transaction::tracer (t); + } + + void + tracer (tracer_type* t) + { + odb::transaction::tracer (t); + } + + using odb::transaction::tracer; + + public: + transaction_impl& + implementation (); + }; + } +} + +#include <odb/mysql/transaction.ixx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_TRANSACTION_HXX diff --git a/libodb-mysql/odb/mysql/transaction.ixx b/libodb-mysql/odb/mysql/transaction.ixx new file mode 100644 index 0000000..15af6a5 --- /dev/null +++ b/libodb-mysql/odb/mysql/transaction.ixx @@ -0,0 +1,57 @@ +// file : odb/mysql/transaction.ixx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/database.hxx> +#include <odb/mysql/transaction-impl.hxx> + +namespace odb +{ + namespace mysql + { + inline transaction:: + transaction (transaction_impl* impl, bool make_current) + : odb::transaction (impl, make_current) + { + } + + inline transaction:: + transaction () + : odb::transaction () + { + } + + inline transaction_impl& transaction:: + implementation () + { + // We can use static_cast here since we have an instance of + // mysql::transaction. + // + return static_cast<transaction_impl&> ( + odb::transaction::implementation ()); + } + + inline transaction::database_type& transaction:: + database () + { + return static_cast<database_type&> (odb::transaction::database ()); + } + + inline transaction::connection_type& transaction:: + connection () + { + return static_cast<connection_type&> (odb::transaction::connection ()); + } + + inline transaction::connection_type& transaction:: + connection (odb::database& db) + { + return static_cast<connection_type&> (odb::transaction::connection (db)); + } + + inline void transaction:: + current (transaction& t) + { + odb::transaction::current (t); + } + } +} diff --git a/libodb-mysql/odb/mysql/version-build2-stub.hxx b/libodb-mysql/odb/mysql/version-build2-stub.hxx new file mode 100644 index 0000000..72bb807 --- /dev/null +++ b/libodb-mysql/odb/mysql/version-build2-stub.hxx @@ -0,0 +1,4 @@ +// file : odb/mysql/version-build2-stub.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/mysql/version.hxx> diff --git a/libodb-mysql/odb/mysql/version-build2.hxx b/libodb-mysql/odb/mysql/version-build2.hxx new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/libodb-mysql/odb/mysql/version-build2.hxx diff --git a/libodb-mysql/odb/mysql/version-build2.hxx.in b/libodb-mysql/odb/mysql/version-build2.hxx.in new file mode 100644 index 0000000..3db7601 --- /dev/null +++ b/libodb-mysql/odb/mysql/version-build2.hxx.in @@ -0,0 +1,62 @@ +// file : odb/mysql/version-build2.hxx.in +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef LIBODB_MYSQL_VERSION // Note: using the version macro itself. + +// The numeric version format is AAAAABBBBBCCCCCDDDE where: +// +// AAAAA - major version number +// BBBBB - minor version number +// CCCCC - bugfix version number +// DDD - alpha / beta (DDD + 500) version number +// E - final (0) / snapshot (1) +// +// When DDDE is not 0, 1 is subtracted from AAAAABBBBBCCCCC. For example: +// +// Version AAAAABBBBBCCCCCDDDE +// +// 0.1.0 0000000001000000000 +// 0.1.2 0000000001000020000 +// 1.2.3 0000100002000030000 +// 2.2.0-a.1 0000200001999990010 +// 3.0.0-b.2 0000299999999995020 +// 2.2.0-a.1.z 0000200001999990011 +// +#define LIBODB_MYSQL_VERSION $libodb_mysql.version.project_number$ULL +#define LIBODB_MYSQL_VERSION_STR "$libodb_mysql.version.project$" +#define LIBODB_MYSQL_VERSION_ID "$libodb_mysql.version.project_id$" + +#define LIBODB_MYSQL_VERSION_MAJOR $libodb_mysql.version.major$ +#define LIBODB_MYSQL_VERSION_MINOR $libodb_mysql.version.minor$ +#define LIBODB_MYSQL_VERSION_PATCH $libodb_mysql.version.patch$ + +#define LIBODB_MYSQL_PRE_RELEASE $libodb_mysql.version.pre_release$ + +#define LIBODB_MYSQL_SNAPSHOT $libodb_mysql.version.snapshot_sn$ULL +#define LIBODB_MYSQL_SNAPSHOT_ID "$libodb_mysql.version.snapshot_id$" + +#ifdef LIBODB_MYSQL_MARIADB +# include <mysql/mariadb_version.h> + +// We support MariaDB starting from 10.2.2 when the library started to be +// named as as mariadb, rather than mysqlclient. Before that we just don't +// distinguish it from the MySQL client library. +// +# if !defined(MYSQL_VERSION_ID) || MYSQL_VERSION_ID < 100202 +# error unexpected MariaDB version detected +# endif +#else +# include <mysql/mysql_version.h> + +// Check that we have a compatible MySQL version (5.0.3 or later). +// +# if !defined(MYSQL_VERSION_ID) || MYSQL_VERSION_ID < 50003 +# error incompatible MySQL version detected +# endif +#endif + +#include <odb/version.hxx> + +$libodb.check(LIBODB_VERSION, LIBODB_SNAPSHOT)$ + +#endif // LIBODB_MYSQL_VERSION diff --git a/libodb-mysql/odb/mysql/version.hxx b/libodb-mysql/odb/mysql/version.hxx new file mode 100644 index 0000000..d778a10 --- /dev/null +++ b/libodb-mysql/odb/mysql/version.hxx @@ -0,0 +1,61 @@ +// file : odb/mysql/version.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifdef LIBODB_MYSQL_BUILD2 +# include <odb/mysql/version-build2.hxx> +#else + +#ifndef ODB_MYSQL_VERSION_HXX +#define ODB_MYSQL_VERSION_HXX + +#include <odb/pre.hxx> + +#include <odb/mysql/details/config.hxx> + +#ifdef LIBODB_MYSQL_INCLUDE_SHORT +# include <mysql_version.h> +#else +# include <mysql/mysql_version.h> +#endif + +#include <odb/version.hxx> + +// Version format is AABBCCDD where +// +// AA - major version number +// BB - minor version number +// CC - bugfix version number +// DD - alpha / beta (DD + 50) version number +// +// When DD is not 00, 1 is subtracted from AABBCC. For example: +// +// Version AABBCCDD +// 2.0.0 02000000 +// 2.1.0 02010000 +// 2.1.1 02010100 +// 2.2.0.a1 02019901 +// 3.0.0.b2 02999952 +// + +// Check that we have compatible ODB version. +// +#if ODB_VERSION != 20476 +# error incompatible odb interface version detected +#endif + +// Check that we have a compatible MySQL version (5.0.3 or later). +// +#if !defined(MYSQL_VERSION_ID) || MYSQL_VERSION_ID < 50003 +# error incompatible MySQL version detected +#endif + +// libodb-mysql version: odb interface version plus the bugfix +// version. +// +#define LIBODB_MYSQL_VERSION 2049976 +#define LIBODB_MYSQL_VERSION_STR "2.5.0-b.26" + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_VERSION_HXX +#endif // LIBODB_MYSQL_BUILD2 diff --git a/libodb-mysql/odb/mysql/view-result.hxx b/libodb-mysql/odb/mysql/view-result.hxx new file mode 100644 index 0000000..2a7682b --- /dev/null +++ b/libodb-mysql/odb/mysql/view-result.hxx @@ -0,0 +1,81 @@ +// file : odb/mysql/view-result.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_VIEW_RESULT_HXX +#define ODB_MYSQL_VIEW_RESULT_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/schema-version.hxx> +#include <odb/view-result.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> // query_base, view_statements +#include <odb/mysql/statement.hxx> +#include <odb/mysql/traits-calls.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class view_result_impl: public odb::view_result_impl<T> + { + public: + typedef odb::view_result_impl<T> base_type; + + typedef typename base_type::view_type view_type; + typedef typename base_type::pointer_type pointer_type; + + typedef view_traits_impl<view_type, id_mysql> view_traits; + typedef typename base_type::pointer_traits pointer_traits; + + typedef view_statements<view_type> statements_type; + + virtual + ~view_result_impl (); + + view_result_impl (const query_base&, + details::shared_ptr<select_statement>, + statements_type&, + const schema_version_migration*); + + virtual void + load (view_type&); + + virtual void + next (); + + virtual void + cache (); + + virtual std::size_t + size (); + + virtual void + invalidate (); + + using base_type::current; + + private: + void + fetch (); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + view_traits_calls<view_type> tc_; + std::size_t count_; + }; + } +} + +#include <odb/mysql/view-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_VIEW_RESULT_HXX diff --git a/libodb-mysql/odb/mysql/view-result.txx b/libodb-mysql/odb/mysql/view-result.txx new file mode 100644 index 0000000..c480920 --- /dev/null +++ b/libodb-mysql/odb/mysql/view-result.txx @@ -0,0 +1,178 @@ +// file : odb/mysql/view-result.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/callback.hxx> +#include <odb/exceptions.hxx> + +#include <odb/mysql/view-statements.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + view_result_impl<T>:: + ~view_result_impl () + { + if (!this->end_) + statement_->free_result (); + } + + template <typename T> + void view_result_impl<T>:: + invalidate () + { + if (!this->end_) + { + statement_->free_result (); + this->end_ = true; + } + + statement_.reset (); + } + + template <typename T> + view_result_impl<T>:: + view_result_impl (const query_base&, + details::shared_ptr<select_statement> statement, + statements_type& statements, + const schema_version_migration* svm) + : base_type (statements.connection ()), + statement_ (statement), + statements_ (statements), + tc_ (svm), + count_ (0) + { + } + + template <typename T> + void view_result_impl<T>:: + load (view_type& view) + { + if (count_ > statement_->fetched ()) + fetch (); + + view_traits::callback (this->db_, view, callback_event::pre_load); + tc_.init (view, statements_.image (), &this->db_); + view_traits::callback (this->db_, view, callback_event::post_load); + } + + template <typename T> + void view_result_impl<T>:: + next () + { + this->current (pointer_type ()); + + if (this->end_) + return; + + // If we are cached, simply increment the position and + // postpone the actual row fetching until later. This way + // if the same view is loaded in between iteration, the + // image won't be messed up. + // + count_++; + + if (statement_->cached ()) + this->end_ = count_ > statement_->result_size (); + else + fetch (); + + if (this->end_) + statement_->free_result (); + } + + template <typename T> + void view_result_impl<T>:: + fetch () + { + // If the result is cached, the image can grow between calls + // to fetch() as a result of other statements execution. + // + if (statement_->cached ()) + { + typename view_traits::image_type& im (statements_.image ()); + + if (im.version != statements_.image_version ()) + { + binding& b (statements_.image_binding ()); + tc_.bind (b.bind, im); + statements_.image_version (im.version); + b.version++; + } + } + + while (!this->end_ && count_ > statement_->fetched ()) + { + select_statement::result r (statement_->fetch ()); + + switch (r) + { + case select_statement::truncated: + { + // Don't re-fetch data we are skipping. + // + if (count_ != statement_->fetched ()) + continue; + + typename view_traits::image_type& im (statements_.image ()); + + if (tc_.grow (im, statements_.image_truncated ())) + im.version++; + + if (im.version != statements_.image_version ()) + { + binding& b (statements_.image_binding ()); + tc_.bind (b.bind, im); + statements_.image_version (im.version); + b.version++; + statement_->refetch (); + } + // Fall throught. + } + case select_statement::success: + { + break; + } + case select_statement::no_data: + { + this->end_ = true; + break; + } + } + } + } + + template <typename T> + void view_result_impl<T>:: + cache () + { + if (!this->end_ && !statement_->cached ()) + { + statement_->cache (); + + if (count_ == statement_->result_size ()) + { + statement_->free_result (); + count_++; // One past the result size. + this->end_ = true; + } + } + } + + template <typename T> + std::size_t view_result_impl<T>:: + size () + { + if (!this->end_) + { + if (!statement_->cached ()) + throw result_not_cached (); + + return statement_->result_size (); + } + else + return count_ - 1; // One past the result size. + } + } +} diff --git a/libodb-mysql/odb/mysql/view-statements.hxx b/libodb-mysql/odb/mysql/view-statements.hxx new file mode 100644 index 0000000..cff4bc1 --- /dev/null +++ b/libodb-mysql/odb/mysql/view-statements.hxx @@ -0,0 +1,88 @@ +// file : odb/mysql/view-statements.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_VIEW_STATEMENTS_HXX +#define ODB_MYSQL_VIEW_STATEMENTS_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/forward.hxx> +#include <odb/traits.hxx> + +#include <odb/mysql/mysql.hxx> +#include <odb/mysql/version.hxx> +#include <odb/mysql/statement.hxx> +#include <odb/mysql/statements-base.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class view_statements: public statements_base + { + public: + typedef T view_type; + typedef view_traits_impl<view_type, id_mysql> view_traits; + typedef typename view_traits::pointer_type pointer_type; + typedef typename view_traits::image_type image_type; + + public: + view_statements (connection_type&); + + virtual + ~view_statements (); + + // View image. + // + image_type& + image () + { + return image_; + } + + std::size_t + image_version () const + { + return image_version_; + } + + void + image_version (std::size_t v) + { + image_version_ = v; + } + + binding& + image_binding () + { + return image_binding_; + } + + my_bool* + image_truncated () + { + return image_truncated_; + } + + private: + view_statements (const view_statements&); + view_statements& operator= (const view_statements&); + + private: + image_type image_; + std::size_t image_version_; + binding image_binding_; + MYSQL_BIND image_bind_[view_traits::column_count]; + my_bool image_truncated_[view_traits::column_count]; + }; + } +} + +#include <odb/mysql/view-statements.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_VIEW_STATEMENTS_HXX diff --git a/libodb-mysql/odb/mysql/view-statements.txx b/libodb-mysql/odb/mysql/view-statements.txx new file mode 100644 index 0000000..b425227 --- /dev/null +++ b/libodb-mysql/odb/mysql/view-statements.txx @@ -0,0 +1,33 @@ +// file : odb/mysql/view-statements.txx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cstddef> // std::size_t +#include <cstring> // std::memset + +namespace odb +{ + namespace mysql + { + template <typename T> + view_statements<T>:: + ~view_statements () + { + } + + template <typename T> + view_statements<T>:: + view_statements (connection_type& conn) + : statements_base (conn), + image_binding_ (image_bind_, view_traits::column_count) + { + image_.version = 0; + image_version_ = 0; + + std::memset (image_bind_, 0, sizeof (image_bind_)); + std::memset (image_truncated_, 0, sizeof (image_truncated_)); + + for (std::size_t i (0); i < view_traits::column_count; ++i) + image_bind_[i].error = image_truncated_ + i; + } + } +} diff --git a/libodb-mysql/tests/.gitignore b/libodb-mysql/tests/.gitignore new file mode 100644 index 0000000..e54525b --- /dev/null +++ b/libodb-mysql/tests/.gitignore @@ -0,0 +1 @@ +driver diff --git a/libodb-mysql/tests/basics/buildfile b/libodb-mysql/tests/basics/buildfile new file mode 100644 index 0000000..8899347 --- /dev/null +++ b/libodb-mysql/tests/basics/buildfile @@ -0,0 +1,6 @@ +# file : tests/basics/buildfile +# license : GNU GPL v2; see accompanying LICENSE file + +import libs = libodb-mysql%lib{odb-mysql} + +exe{driver}: {hxx cxx}{*} $libs diff --git a/libodb-mysql/tests/basics/driver.cxx b/libodb-mysql/tests/basics/driver.cxx new file mode 100644 index 0000000..81ebb19 --- /dev/null +++ b/libodb-mysql/tests/basics/driver.cxx @@ -0,0 +1,37 @@ +// file : tests/basics/driver.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +// Basic test to make sure the library is usable. Functionality testing +// is done in the odb-tests package. + +#include <cassert> +#include <sstream> + +#include <odb/mysql/database.hxx> +#include <odb/mysql/exceptions.hxx> +#include <odb/mysql/transaction.hxx> + +using namespace odb::mysql; + +int +main () +{ + { + std::ostringstream os; + database::print_usage (os); + assert (!os.str ().empty ()); + } + + // We can't really do much here since that would require a database. We can + // create a fake database object as long as we don't expect to get a valid + // connection. + // + database db ("john", "secret", "dummy whammy"); + + try + { + transaction t (db.begin ()); + assert (false); + } + catch (const database_exception&) {} +} diff --git a/libodb-mysql/tests/build/.gitignore b/libodb-mysql/tests/build/.gitignore new file mode 100644 index 0000000..4a730a3 --- /dev/null +++ b/libodb-mysql/tests/build/.gitignore @@ -0,0 +1,3 @@ +config.build +root/ +bootstrap/ diff --git a/libodb-mysql/tests/build/bootstrap.build b/libodb-mysql/tests/build/bootstrap.build new file mode 100644 index 0000000..6ee38db --- /dev/null +++ b/libodb-mysql/tests/build/bootstrap.build @@ -0,0 +1,8 @@ +# file : tests/build/bootstrap.build +# license : GNU GPL v2; see accompanying LICENSE file + +project = # Unnamed subproject. + +using config +using dist +using test diff --git a/libodb-mysql/tests/build/root.build b/libodb-mysql/tests/build/root.build new file mode 100644 index 0000000..6c5a90b --- /dev/null +++ b/libodb-mysql/tests/build/root.build @@ -0,0 +1,23 @@ +# file : tests/build/root.build +# license : GNU GPL v2; see accompanying LICENSE file + +cxx.std = latest + +using cxx + +hxx{*}: extension = hxx +cxx{*}: extension = cxx + +if ($cxx.target.system == 'win32-msvc') + cxx.poptions += -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS + +if ($cxx.class == 'msvc') + cxx.coptions += /wd4251 /wd4275 /wd4800 + +# Every exe{} in this subproject is by default a test. +# +exe{*}: test = true + +# Specify the test target for cross-testing. +# +test.target = $cxx.target diff --git a/libodb-mysql/tests/buildfile b/libodb-mysql/tests/buildfile new file mode 100644 index 0000000..57588a4 --- /dev/null +++ b/libodb-mysql/tests/buildfile @@ -0,0 +1,4 @@ +# file : tests/buildfile +# license : GNU GPL v2; see accompanying LICENSE file + +./: {*/ -build/} |