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/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.

   Contributed by Richard Henderson <rth@redhat.com>.

   This file is part of the GNU Transactional Memory Library (libitm).

   Libitm is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   Libitm 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 General Public License for

   more details.

   Under Section 7 of GPL version 3, you are granted additional

   permissions described in the GCC Runtime Library Exception, version

   3.1, as published by the Free Software Foundation.

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

   a copy of the GCC Runtime Library Exception along with this program;

   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include "libitm_i.h"

namespace GTM HIDDEN {

void

gtm_thread::rollback_user_actions(size_t until_size)

{

  for (size_t s = user_actions.size(); s > until_size; s--)

    {

      user_action *a = user_actions.pop();

      if (!a->on_commit)

        a->fn (a->arg);

    }

}

void

gtm_thread::commit_user_actions()

{

  for (vector<user_action>::iterator i = user_actions.begin(),

      ie = user_actions.end(); i != ie; i++)

    {

      if (i->on_commit)

        i->fn (i->arg);

    }

  user_actions.clear();

}

} // namespace GTM

using namespace GTM;

void ITM_REGPARM

_ITM_addUserCommitAction(_ITM_userCommitFunction fn,

                         _ITM_transactionId_t tid, void *arg)

{

  gtm_thread *tx = gtm_thr();

  if (tid != _ITM_noTransactionId)

    GTM_fatal("resumingTransactionId in _ITM_addUserCommitAction must be "

              "_ITM_noTransactionId");

  gtm_thread::user_action *a = tx->user_actions.push();

  a->fn = fn;

  a->arg = arg;

  a->on_commit = true;

  a->resuming_id = tid;

}

void ITM_REGPARM

_ITM_addUserUndoAction(_ITM_userUndoFunction fn, void * arg)

{

  gtm_thread *tx = gtm_thr();

  gtm_thread::user_action *a = tx->user_actions.push();

  a->fn = fn;

  a->arg = arg;

  a->on_commit = false;

}