diff options
author | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-24 19:01:19 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2024-01-24 19:01:19 +0300 |
commit | e5d0186db99492a139237067bab841a5b83463af (patch) | |
tree | 61719595e998314e58383c5081da16d7457a63e7 /libodb-sqlite/odb/sqlite/auto-handle.hxx | |
parent | c53136bd7d266fccaca679d0471dd8ac0ce91373 (diff) |
Turn libodb-sqlite repository into package for muti-package repositorylibodb-sqlite
Diffstat (limited to 'libodb-sqlite/odb/sqlite/auto-handle.hxx')
-rw-r--r-- | libodb-sqlite/odb/sqlite/auto-handle.hxx | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libodb-sqlite/odb/sqlite/auto-handle.hxx b/libodb-sqlite/odb/sqlite/auto-handle.hxx new file mode 100644 index 0000000..d25e919 --- /dev/null +++ b/libodb-sqlite/odb/sqlite/auto-handle.hxx @@ -0,0 +1,101 @@ +// file : odb/sqlite/auto-handle.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_SQLITE_AUTO_HANDLE_HXX +#define ODB_SQLITE_AUTO_HANDLE_HXX + +#include <odb/pre.hxx> + +#include <cassert> +#include <sqlite3.h> + +#include <odb/sqlite/version.hxx> + +namespace odb +{ + namespace sqlite + { + template <typename H> + struct handle_traits; + + template <> + struct handle_traits<sqlite3> + { + static void + release (sqlite3* h) + { + if (sqlite3_close (h) == SQLITE_BUSY) + { + // Connection has outstanding prepared statements. + // + assert (false); + } + } + }; + + template <> + struct handle_traits<sqlite3_stmt> + { + static void + release (sqlite3_stmt* h) + { + sqlite3_finalize (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_SQLITE_AUTO_HANDLE_HXX |