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drizzled/statement/rollback_to_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 <drizzled/server_includes.h>
 
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#include <drizzled/show.h>
 
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#include <drizzled/session.h>
 
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#include <drizzled/statement/rollback_to_savepoint.h>
 
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using namespace drizzled;
 
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bool statement::RollbackToSavepoint::execute()
 
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{
 
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  SAVEPOINT *sv;
 
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  for (sv= session->transaction.savepoints; sv; sv= sv->prev)
 
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  {
 
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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, 
 
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                     sv->length) == 0)
 
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    {
 
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      break;
 
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    }
 
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  }
 
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  if (sv)
 
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  {
 
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    if (ha_rollback_to_savepoint(session, sv))
 
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    {
 
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      return true; /* cannot happen */
 
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    }
 
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    else
 
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    {
 
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      if ((session->options & OPTION_KEEP_LOG) || 
 
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          session->transaction.all.modified_non_trans_table)
 
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      {
 
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        push_warning(session, 
 
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                     DRIZZLE_ERROR::WARN_LEVEL_WARN,
 
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                     ER_WARNING_NOT_COMPLETE_ROLLBACK,
 
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                     ER(ER_WARNING_NOT_COMPLETE_ROLLBACK));
 
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      }
 
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      session->my_ok();
 
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    }
 
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    session->transaction.savepoints= sv;
 
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  }
 
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  else
 
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  {
 
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    my_error(ER_SP_DOES_NOT_EXIST, 
 
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             MYF(0), 
 
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             "SAVEPOINT", 
 
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             session->lex->ident.str);
 
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  }
 
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  return false;
 
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}