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  • Committer: Brian Aker
  • Date: 2010-10-28 17:12:01 UTC
  • mfrom: (1887.1.3 merge)
  • Revision ID: brian@tangent.org-20101028171201-baj6l1bnntn1s4ad
Merge in POTFILES changes.

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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, Inc.
 
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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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 */
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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/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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bool statement::Savepoint::execute()
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{
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  if (! (getSession()->options & (OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
 
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  if (! (session->options & (OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
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  {
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    /* AUTOCOMMIT is on and not in a BEGIN */
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    getSession()->my_ok();
 
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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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     * If AUTOCOMMIT is off and resource contexts are empty then we need
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     * to start a transaction. It will be empty when SAVEPOINT starts the
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     * transaction. Table affecting statements do this work in lockTables()
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     * by calling startStatement().
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     */
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    if ( (getSession()->options & OPTION_NOT_AUTOCOMMIT) &&
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         (getSession()->transaction.all.getResourceContexts().empty() == true) )
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    {
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      if (getSession()->startTransaction() == false)
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      {
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        return false;
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      }
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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= getSession()->transaction.savepoints;
 
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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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      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 *) getSession()->lex->ident.str,
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                       getSession()->lex->ident.length,
 
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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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    if (iter != savepoints.end())
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    {
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      NamedSavepoint &sv= *iter;
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      (void) transaction_services.releaseSavepoint(*getSession(), sv);
 
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      (void) transaction_services.releaseSavepoint(session, sv);
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      savepoints.erase(iter);
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    }
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    NamedSavepoint newsv(getSession()->lex->ident.str, getSession()->lex->ident.length);
 
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    NamedSavepoint newsv(session->lex->ident.str, session->lex->ident.length);
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    if (transaction_services.setSavepoint(*getSession(), newsv))
 
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    if (transaction_services.setSavepoint(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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      getSession()->my_ok();
 
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      session->my_ok();
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    }
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  }
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  return false;