statelessbasicproxy.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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 * 
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 *    notice, this list of conditions and the following disclaimer in
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 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
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 *    software without prior written permission. For written
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 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
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static const char* const StatelessBasicProxy_cxx_Version =
    "$Id: StatelessBasicProxy.cxx,v 1.7.24.3 2003/02/27 01:55:27 bko Exp $";


#include "CommandLine.hxx"
#include "HeartbeatRxThread.hxx"
#include "HeartbeatTxThread.hxx"
#include "HouseKeepingThread.hxx"
#include "ServerContainer.hxx"
#include "SipThread.hxx"
#include "SipTransceiverFilter.hxx"
#include "StatelessBasicProxy.hxx"
#include "WorkerThread.hxx"

using namespace Vocal;


StatelessBasicProxy::StatelessBasicProxy( 
    unsigned short          defaultSipPort,
    Data                    applName,
    bool                    filterOn, 
    bool                    nat,
    SipAppContext           aContext
)
{
    myCallProcessingQueue = new Fifo < Sptr < SipProxyEvent > >;

    myWorkerThread = new StatelessWorkerThread(myCallProcessingQueue, *this);

    //  Filter option controls which transceiver object is created for the
    //  sip stack.
    //
    //  If filterOn is set, they get a SipTransceiverFilter, otherwise they
    //  get a vanilla SipTransceiver.
    //
    if ( filterOn == true )
    {
        mySipStack = new SipTransceiverFilter(applName, defaultSipPort, nat, aContext);
    }
    else
    {
        mySipStack = new SipTransceiver(applName, defaultSipPort, nat, aContext);
    }

    mySipThread = new SipThread(mySipStack, myCallProcessingQueue, false);    

    if(CommandLine::instance()->getInt("HEARTBEAT"))
    {
        cpLog(LOG_INFO, "Initializing heartbeat mechanism");
        myHeartbeatTxThread = new HeartbeatTxThread(defaultSipPort);
        myHeartbeatRxThread = new HeartbeatRxThread(ServerContainer::instance());
        myHouseKeepingThread = new HouseKeepingThread(ServerContainer::instance());
        assert( myHeartbeatTxThread != 0 );
        assert( myHeartbeatRxThread != 0 );
        assert( myHouseKeepingThread != 0 );
    }

    assert( myWorkerThread != 0 );
    assert( mySipThread != 0 );
    assert( myCallProcessingQueue != 0 );
    assert( mySipStack != 0 );
}


StatelessBasicProxy::~StatelessBasicProxy()
{
}


void
StatelessBasicProxy::run()
{
    myWorkerThread->run();
    mySipThread->run();
    if(myHeartbeatRxThread != 0) myHeartbeatRxThread->run();
    if(myHouseKeepingThread != 0) myHouseKeepingThread->run();
}

void
StatelessBasicProxy::runHeartbeatThread()
{
    if(myHeartbeatTxThread != 0) myHeartbeatTxThread->run();
}


void
StatelessBasicProxy::shutdown()
{
    myWorkerThread->shutdown();
    mySipThread->shutdown();
}

void
StatelessBasicProxy::shutdownHeartbeatThread()
{
    if(myHeartbeatTxThread != 0) myHeartbeatTxThread->shutdown();
    if(myHeartbeatRxThread != 0) myHeartbeatRxThread->shutdown();
    if(myHouseKeepingThread != 0) myHouseKeepingThread->shutdown();
}   


void
StatelessBasicProxy::joinHeartbeatThread()
{
    if(myHeartbeatTxThread != 0) myHeartbeatTxThread->join();
    if(myHeartbeatRxThread != 0) myHeartbeatRxThread->join();
    if(myHouseKeepingThread != 0) myHouseKeepingThread->join();
}   



void
StatelessBasicProxy::join()
{
    myWorkerThread->join();
    mySipThread->join();
}

void
StatelessBasicProxy::process(const Sptr < SipProxyEvent > event) const
{
    assert ( event != 0 );

    for (   vector<Sptr <Operator> >::const_iterator iter = myOperators.begin(); 
            iter != myOperators.end(); 
            iter++ 
        )
    {
	Sptr < State > newState = (*iter)->process(event);

	if( newState == PROXY_DONE_WITH_EVENT )
	{
	    break;
	}
    }
}