b2bfacade.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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 * 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].
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 * 4. Products derived from this software may not be called "VOCAL", nor
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 * This software consists of voluntary contributions made by Vovida
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static const char* const B2bFacade_cxx_Version = 
    "$Id: B2bFacade.cxx,v 1.2.2.1 2003/02/13 03:32:23 sprajpat Exp $";


#include "Fifo.h"
#include "B2bConfig.hxx"
#include "B2bFacade.hxx"
#include "MultiLegCallControl.hxx"
#include "CallDB.hxx"
#include "NetworkAddress.h"
#include "RegistrationAgent.hxx"

extern "C" {
    void B2bFacade_destroy(void)
    {
        B2bFacade::destroy();
    }
};

using namespace Vocal;
using namespace Vocal::UA;

B2bFacade* B2bFacade::myInstance = 0;

void
B2bFacade::destroy()
{
    cpLog(LOG_DEBUG, "B2bFacade::destroy()");
    MultiLegCallControl::destroy();
    CallDB::destroy();

    delete B2bFacade::myInstance;
    B2bFacade::myInstance = 0;
}

B2bFacade&
B2bFacade::instance()
{
    assert(myInstance != 0);
    return *myInstance;
}

B2bFacade&
B2bFacade::instance(const Data& applName, unsigned short  defaultSipPort, bool filteron, bool nat)
{
    assert(myInstance == 0);
    if(myInstance == 0)
    {
        myInstance = new B2bFacade(applName,defaultSipPort,filteron,nat);
    }
    return *myInstance;
}

B2bFacade::B2bFacade( const Data& applName, unsigned short  defaultSipPort, bool filteron, bool nat)
{
    cpLog(LOG_DEBUG, "B2bFacade::B2bFacade");
    if (atexit(B2bFacade_destroy) < 0)
    {
        cpLog(LOG_ALERT, "Failed to register with atexit()");
    };
    string outboundProxyAddr = B2bConfig::instance().getStr(B2bConfig::SIP_PROXY_ADDR);
    int outboundProxyPort = B2bConfig::instance().getInt(B2bConfig::SIP_PROXY_PORT);
    string useTransport = B2bConfig::instance().getStr(B2bConfig::SIP_LOCAL_TRANSPORT); 

    NetworkAddress addr(outboundProxyAddr.c_str(), outboundProxyPort);
    int trPort = 1; //Default is UDP
    if(useTransport == "TCP")
    {
        trPort = 2;
    }
    libSipInit(addr, defaultSipPort, theSystem.gethostAddress(), trPort);

    myInputEventFifo = new Fifo < Sptr < SipProxyEvent > >;
    assert( myInputEventFifo != 0 );
    myWorkerThread = new B2bWorkerThread(myInputEventFifo);

    mySipStack = new SipTransceiver(applName, defaultSipPort, nat);

    assert( mySipStack != 0 );

    mySipThread = new SipThread(mySipStack, myInputEventFifo, false);
    NetworkAddress a;
    Data localH = a.getIpName().c_str();
    RegistrationAgent::instance(mySipStack, localH, defaultSipPort);
    assert( myWorkerThread != 0 );
    assert( mySipThread != 0 );
    myWorkerThread->run();
    mySipThread->run();
}

void
B2bFacade::run()
{
    mySipThread->join();
    myWorkerThread->join();
}

B2bFacade::~B2bFacade()
{
}

Sptr<AAATransceiver> 
B2bFacade::getAAATransceiver()
{
    if(myAAATransceiver == 0)
    {
        ///Create AAA Transceiver, let the UDP stack select a local port
//        int port = B2bConfig::instance().getInt(B2bConfig::RAD_LOCAL_AUTH_PORT)+8000;
        myAAATransceiver = new AAATransceiver(-1, myInputEventFifo);
    }
    return myAAATransceiver;
}