From 3a160a80c788d81e48acf19a2cf68f29cf125dae Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 25 Jan 2024 18:52:59 +0300
Subject: Turn libodb-mysql repository into package for muti-package repository

---
 libodb-mysql/odb/mysql/connection.hxx | 231 ++++++++++++++++++++++++++++++++++
 1 file changed, 231 insertions(+)
 create mode 100644 libodb-mysql/odb/mysql/connection.hxx

(limited to 'libodb-mysql/odb/mysql/connection.hxx')

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
-- 
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