1 files changed, 94 insertions, 0 deletions
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