workerthread.cxx

Vovida 社区开源的 SIP 协议源码

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. 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.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY 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.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */


static const char* const WorkerThread_cxx_Version =
    "$Id: WorkerThread.cxx,v 1.25.24.1 2003/02/27 01:55:27 bko Exp $";


#include "global.h"
#include "WorkerThread.hxx"

using namespace Vocal;


WorkerThread::WorkerThread( 
    const Sptr < Fifo < Sptr < SipProxyEvent > > > inputFifo,
    const Sptr < Builder > builder 
)
    : 	myFifo(inputFifo), 
    	myBuilder(builder)
{
    assert(myFifo != 0 );
    assert(myBuilder != 0 );
}


WorkerThread::~WorkerThread()
{
}


void
WorkerThread::shutdown()
{
    assert( myFifo != 0 );

    ThreadIf::shutdown();

    myFifo->add(0);
}


void
WorkerThread::thread()
{
    cpLogSetLabelThread (VThread::selfId(), "bcWorker");

    while ( true )
    {
        assert( myFifo != 0 );
        assert( myBuilder != 0 );

        Sptr < SipProxyEvent > nextEvent = myFifo->getNext();

        if ( isShutdown() == true )
        {
            cpLog(LOG_DEBUG, "Shutting down WorkerThread");
            return;
        }

        assert( nextEvent != 0 );
        cpLog(LOG_DEBUG, "WorkerThread::thread() processing event");
	try
	{
	    myBuilder->process(nextEvent);
	}
	catch ( VException& v )
        {
            cpLog( LOG_DEBUG, "VException while processing %s", v.getDescription().c_str() );
        }
        catch ( ... )
        {
            cpLog( LOG_DEBUG, "Exception while processing" );
        }

        cpLog(LOG_DEBUG, "WorkerThread::thread() done processing event");
    }
}