---

threaded_event_handler.hh

/*
*  Name:      threaded_event_handler.hh
*  Author:    Carlos Jimenez Moreno
*             Rafael Jesus Alcantara Perez
*  Summary:   Threaded Event Handler
*  Date:      $Date: 2003/10/06 12:45:11 $
*  Revision:  $Revision: 1.2 $
*
*  Copyright (C) 1999       Carlos Jimenez Moreno <carlosj@dedalo-ing.com>
*  Copyright (C) 2002-2003  Rafael Jesus Alcantara Perez <rafa@dedalo-ing.com>
*
*  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; either version 2 of the License, or
*  (at your option) any later version.
*
*  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.
*/


#ifndef _MPCL_EVENT_THREADED_EVENT_HANDLER__
#define _MPCL_EVENT_THREADED_EVENT_HANDLER__

#include <mpcl/event/event_handler.hh>
#include <mpcl/system/all.hh>


namespace mpcl
{

  namespace event
  {

    template <typename TEvent>
    class TThreadedEventHandler      :
        public TEventHandler<TEvent> ,
        public mpcl::system::TThread
    {

      private:

        mutable mpcl::system::TMutex   tMutex;

        
      public:

        //
        // C O N S T R U C T O R S
        //

        TThreadedEventHandler (void) :
          TEventHandler<TEvent> ()   ,
          TThread               ()   ,
          tMutex                ()   {}

        TEvent pop (void)
        {
          TEvent   tEvent;

          tMutex.lock();
          tEvent = TEventHandler<TEvent>::pop();
          tMutex.unlock();
          return tEvent;
        }

        void push (const TEvent& rktSOURCE_EVENT)
        {
          tMutex.lock();
          TEventHandler<TEvent>::push (rktSOURCE_EVENT);
          tMutex.unlock();
        }


      public:

        //
        //  S E L E C T O R S
        //

        bool isEmpty (void) const
        {
          bool   gIsEmpty;
  
          tMutex.lock();
          gIsEmpty = TEventHandler<TEvent>::isEmpty();
          tMutex.unlock();
          return gIsEmpty;
        }

    };  // TThreadedEventHandler
    
  }  // namespace event

}  // namespace mpcl


#endif  // not _MPCL_EVENT_THREADED_EVENT_HANDLER__

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