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  • Committer: Brian Aker
  • Date: 2010-02-10 18:04:24 UTC
  • mfrom: (1286.1.5 build)
  • Revision ID: brian@gaz-20100210180424-03ypoyifmlc2lgcp
Merge of Brian/Padraig

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drizzled/statement/savepoint.cc
 
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 
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 *
 
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 *  Copyright (C) 2009 Sun Microsystems
 
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 *
 
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 *  This program is free software; you can redistribute it and/or modify
 
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 *  it under the terms of the GNU General Public License as published by
 
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 *  the Free Software Foundation; either version 2 of the License, or
 
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 *  (at your option) any later version.
 
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 *
 
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 *  This program is distributed in the hope that it will be useful,
 
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 *  GNU General Public License for more details.
 
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 *
 
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 *  You should have received a copy of the GNU General Public License
 
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 *  along with this program; if not, write to the Free Software
 
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
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 */
 
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#include "config.h"
 
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#include <drizzled/show.h>
 
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#include <drizzled/session.h>
 
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#include <drizzled/statement/savepoint.h>
 
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#include "drizzled/transaction_services.h"
 
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#include "drizzled/named_savepoint.h"
 
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#include <string>
 
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#include <deque>
 
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using namespace std;
 
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namespace drizzled
 
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{
 
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bool statement::Savepoint::execute()
 
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{
 
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  if (! (session->options & (OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
 
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  {
 
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    session->my_ok();
 
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  }
 
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  else
 
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  {
 
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    /*
 
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     * Look through the savepoints.  If we find one with
 
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     * the same name, delete it.
 
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     */
 
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    TransactionServices &transaction_services= TransactionServices::singleton();
 
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    deque<NamedSavepoint> &savepoints= session->transaction.savepoints;
 
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    deque<NamedSavepoint>::iterator iter;
 
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    for (iter= savepoints.begin();
 
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         iter != savepoints.end();
 
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         ++iter)
 
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    {
 
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      NamedSavepoint &sv= *iter;
 
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      const string &sv_name= sv.getName();
 
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      if (my_strnncoll(system_charset_info,
 
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                       (unsigned char *) session->lex->ident.str,
 
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                       session->lex->ident.length,
 
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                       (unsigned char *) sv_name.c_str(),
 
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                       sv_name.size()) == 0)
 
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        break;
 
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    }
 
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    if (iter != savepoints.end())
 
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    {
 
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      NamedSavepoint &sv= *iter;
 
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      (void) transaction_services.ha_release_savepoint(session, sv);
 
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      savepoints.erase(iter);
 
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    }
 
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    NamedSavepoint newsv(session->lex->ident.str, session->lex->ident.length);
 
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    if (transaction_services.ha_savepoint(session, newsv))
 
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    {
 
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      return true;
 
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    }
 
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    else
 
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    {
 
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      savepoints.push_front(newsv);
 
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      session->my_ok();
 
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    }
 
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  }
 
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  return false;
 
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}
 
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} /* namespace drizzled */