CallforwardNode.h

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/* ========================================================================
 * Copyright (c) 2006,
 * Institute for Computer Graphics and Vision
 * Graz University of Technology
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * Neither the name of the Graz University of Technology nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ========================================================================
 * PROJECT: OpenTracker
 * ======================================================================== */
/* ======================================================================= */

#ifndef _CALLFORWARDNODE_H
#define _CALLFORWARDNODE_H

#include "../OpenTracker.h"


#ifndef OT_NO_CALLFORWARDMODULE_SUPPORT

#include <ace/Synch.h>

namespace ot {

    typedef ACE_Mutex mutex_type;
    class CallforwardModule;
    class CallforwardNode;

    class OPENTRACKER_API CallforwardNode : public Node
    {
        // Members
    public:
        std::string name;

        bool pendingevent;

        Event event;

        CallforwardModule * cfmodule;

        mutex_type cfmutex;

        // Methods
    protected:
        CallforwardNode( const std::string & name_ ) :
            Node(),
            name( name_ ),
            pendingevent(false),
            cfmodule( NULL )
        {}

    public:
        virtual int isEventGenerator()
        {
            return 1;
        }
        
        virtual void updateObservers( Event &data)
        {
            cfmutex.acquire();

            if (pendingevent)
            {
                Node::updateObservers(data);
                pendingevent = false;
            }
            cfmutex.release();
        }
        const std::string & getCallforwardName(void) const
        {
            return CallforwardNode::name;
        };

        void setEvent(const Event& inevent)
        {
            cfmutex.acquire();

            event = inevent;
            pendingevent = true;

            cfmutex.release();
        }

        friend class CallforwardModule;
    };

} // namespace ot


#endif //OT_NO_CALLFORWARDMODULE_SUPPORT


#endif

/* 
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 *   End of CallforwardNode.h
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