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/******************************************************************************
 *       __    _    _   _       _       _   _____                             *
 *       | \  / |  | | | |     | |     | |  | ___|                            *
 *       |  \/  |  | | | |     | |     | |  | |_                              *
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 *       |_|  |_|  |_| |____|  |____|  |_|  |____|                            *
 * __________________________________________________________________________ *
 *                 Multifunctional Library For Image Processing               *
 *                                                                            *
 *                                                                            *
 *                                                                            *
 *      (c) Copyright 2007 by Humbert Florent                                 *
 *                                                                            *
 *      This program 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; only version 2 of the License.          *
 *                                                                            *
 *      This program 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.                          *
 *                                                                            *
 *      You should have received a copy of the GNU General Public License     *
 *      along with this program; if not, write to the Free Software           *
 *      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA             *
 *      02111-1307, USA.                                                      *
 ******************************************************************************/


#include "GThread.hpp"
#include "ThreadGroup.hpp"

namespace Millie
{
    GThread::GThread() : Thread()
    {
      _group = 0;
    }

    GThread::GThread(const std::string & name)
        : Thread(name)
    {
      _group = 0;

    }

    const ThreadGroup * GThread::getThreadGroup()
    {
      return _group;
    }


    void GThread::setGroup(ThreadGroup * group)
    {
      MutexLock lock(_synchronizedGroup)
      ;
      if(_group != 0)
      {
        throw IllegalThreadStateException("GThread has a group !");
      }

      _group = group;
    }

    void GThread::waitAllGroup()
    {
      if(_group == 0)
        throw IllegalThreadStateException("GThread : waitAllGroup : no group or i'm not aware !");

      Mutex mlock(_synchronizedIsRunning);
      if(!_isRunning)
        throw IllegalThreadStateException("GThread : waitAllgroup");
      mlock.unlock();

      pthread_mutex_t * mutex;
      pthread_cond_t * cond;

      if(_group->threadWaitAll(this, &mutex, &cond))
      {
        pthread_cond_wait(cond, mutex);
        pthread_mutex_unlock(mutex);
      }
    }


    GThread::~GThread()
    {
      join();
      _group = 0;
    }


}

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