Drizzled Public API Documentation

start_transaction.cc

00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2009 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 #include <drizzled/show.h>
00023 #include <drizzled/session.h>
00024 #include <drizzled/statement/start_transaction.h>
00025 
00026 namespace drizzled
00027 {
00028 
00029 bool statement::StartTransaction::execute()
00030 {
00031   if (session().inTransaction())
00032   {
00033     push_warning_printf(&session(), DRIZZLE_ERROR::WARN_LEVEL_WARN,
00034                         ER_TRANSACTION_ALREADY_STARTED,
00035                         ER(ER_TRANSACTION_ALREADY_STARTED));
00036     return false;
00037   }
00038 
00039   if (transaction().xid_state.xa_state != XA_NOTR)
00040   {
00041     my_error(ER_XAER_RMFAIL, MYF(0),
00042         xa_state_names[transaction().xid_state.xa_state]);
00043     return false;
00044   }
00045   /*
00046      Breakpoints for backup testing.
00047    */
00048   if (! session().startTransaction(start_transaction_opt))
00049   {
00050     return true;
00051   }
00052   session().my_ok();
00053   return false;
00054 }
00055 
00056 }