LinkTriggerCondition.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

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 version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef _LINKTRIGGERCONDITION_H_
#define _LINKTRIGGERCONDITION_H_

#include "system/thread/Thread.h"
using namespace ::br::pucrio::telemidia::ginga::core::system::thread;

#include "LinkTriggerListener.h"
#include "LinkCondition.h"

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace ncl {
namespace model {
namespace link {

    typedef struct {
        LinkTriggerListener* listener;
        short status;
        LinkCondition* condition;
    } ConditionStatus;

    class LinkTriggerCondition : public LinkCondition, public Thread {
        protected:
            LinkTriggerListener* listener;
            double delay;

            static pthread_mutex_t sMutex;
            static bool initialized;
            static bool running;
            static vector<ConditionStatus*> notes;

        public:
            LinkTriggerCondition();
            virtual ~LinkTriggerCondition();

            virtual vector<FormatterEvent*>* getEvents()=0;

        protected:
            virtual void notifyConditionObservers(short satus);

        public:
            void setTriggerListener(LinkTriggerListener* listener);
            LinkTriggerListener* getTriggerListener();
            double getDelay();
            void setDelay(double delay);
            virtual void conditionSatisfied(void *condition);

        private:
            static void* notificationThread(void* ptr);

            void run();
    };
}
}
}
}
}
}
}

#endif //_LINKTRIGGERCONDITION_H_