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// file : odb/sqlite/auto-handle.hxx
// copyright : Copyright (c) 2005-2013 Code Synthesis Tools CC
// 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
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