b2bworkerthread.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
 * The Vovida Software License, Version 1.0 
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static const char* const B2bWorkerThread_cxx_Version =
    "$Id: B2bWorkerThread.cxx,v 1.10 2002/08/16 01:29:19 sprajpat Exp $";


#include "SipEvent.hxx"
#include "UaBase.hxx"
#include "AAAEvent.hxx"
#include "CallTimerEvent.hxx"
#include "CallDB.hxx"
#include "MultiLegCallControl.hxx"
#include "B2bWorkerThread.hxx"

using namespace Vocal;
using namespace Vocal::UA;

void
B2bWorkerThread::shutdown()
{
    assert( myFifo != 0 );

    ThreadIf::shutdown();

    myFifo->add(0);
}


void
B2bWorkerThread::thread()
{
    cpLogSetLabelThread (VThread::selfId(), "bcWorker");

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

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

        cpLog(LOG_DEBUG, "B2bWorkerThread received event");

        if ( isShutdown() == true )
        {
            return;
        }

        assert( nextEvent != 0 );
        //TODO add processing for each type of events
        //SIP_EVENT, TIMER_EVENT, HTTP_EVENT, RADIUS_EVENT
        Sptr<SipEvent> sipEvent;
        sipEvent.dynamicCast(nextEvent);
        if(sipEvent != 0)
        {
            handleSipEvent(sipEvent);
            continue;
        }

        Sptr<AAAEvent> authEvent;
        authEvent.dynamicCast(nextEvent);
        if(authEvent != 0)
        {
            cpLog(LOG_DEBUG, "Handling AAA event");
            MultiLegCallControl::instance().processEvent(nextEvent);
            continue;
        }
        Sptr<CallTimerEvent> timerEvent;
        timerEvent.dynamicCast(nextEvent);
        if(timerEvent != 0)
        {
            cpLog(LOG_DEBUG, "Handling Timer event");
            MultiLegCallControl::instance().processEvent(nextEvent);
            continue;
        }
    }
    cpLog(LOG_DEBUG, "Exiting worker thread...");
}

void
B2bWorkerThread::handleSipEvent(Sptr<SipEvent> sipEvent)
{
    cpLog(LOG_DEBUG, "Handling SIP event");
    //get the callleg and lookup in the Call database to
    //see if callleg already exists.If so get the UserAgent and
    //invoke the action on it.
    Sptr<SipMsg> sipMsg = sipEvent->getSipMsg();
    assert(sipMsg != 0);
    SipCallLeg cLeg(sipMsg->getFrom(), sipMsg->getTo(), sipMsg->getCallId());
    Sptr<MultiLegCallData> mData = CallDB::instance().getMultiLegCallData(cLeg);
    if(mData != 0)
    {
        //Call Data found
        Sptr<UaBase> agent;
        agent.dynamicCast(mData->getCallLeg(cLeg));
        if(agent != 0)
            agent->receivedMsg(sipMsg);
    }
    else
    {
        MultiLegCallControl::instance().processEvent(sipEvent);
    } 
}