/sqlite3cc

/*

 * command.cc

 *

 * Copyright (C) 2009 Tim Marston <edam@waxworlds.org>

 *

 * This file is part of sqlite3cc (hereafter referred to as "this program").

 * See http://www.waxworlds.org/edam/software/sqlite3cc for more information.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published

 * by the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * 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 Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#include <sqlite3cc/command.h>

#include <sqlite3cc/database.h>

#include <boost/thread/locks.hpp>

#include <cassert>

boost::recursive_mutex sqlite::command::_command_mutex;

sqlite::command::command(

	database &database,

	const std::string &sql )

	:

	basic_statement( database, sql ),

	_changes( 0 ),

	_total_changes( 0 ),

	_last_insert_rowid( 0 )

{

	assert( sqlite3_column_count( _handle ) == 0 );

}

sqlite::command::command(

	database &database )

	:

	basic_statement( database ),

	_changes( 0 ),

	_total_changes( 0 ),

	_last_insert_rowid( 0 )

{

}

int sqlite::command::prepare(

	const std::string &sql )

{

	int error_code = basic_statement::prepare( sql );

	assert( error_code != SQLITE_OK || sqlite3_column_count( _handle ) == 0 );

	return error_code;

}

int sqlite::command::step()

{

	boost::lock_guard< boost::recursive_mutex > lock( _command_mutex );

	int error_code = basic_statement::step();

	if( error_code == SQLITE_OK ) {

		_changes = sqlite3_changes( _database._handle );

		_total_changes = sqlite3_total_changes( _database._handle );

		_last_insert_rowid = sqlite3_last_insert_rowid( _database._handle );

	}

	return error_code;

}