stackthread.cxx

这是国外的resip协议栈

#include "resip/stack/StackThread.hxx"
#include "resip/stack/SipStack.hxx"
#include "resip/stack/SipMessage.hxx"
#include "rutil/Logger.hxx"

#define RESIPROCATE_SUBSYSTEM Subsystem::SIP

using namespace resip;

StackThread::StackThread(SipStack& stack)
   : mStack(stack)
{}

StackThread::~StackThread()
{
   //InfoLog (<< "StackThread::~StackThread()");
}

void
StackThread::thread()
{
   while (!isShutdown())
   {
      try
      {
         resip::FdSet fdset;
         buildFdSet(fdset);
         mStack.buildFdSet(fdset);
		 int ret = fdset.selectMilliSeconds(resipMin(mStack.getTimeTillNextProcessMS(),
                                                     getTimeTillNextProcessMS()));
         if (ret >= 0)
         {
            // .dlb. use return value to peak at the message to see if it is a
            // shutdown, and call shutdown if it is
            beforeProcess();
            mStack.process(fdset);
            afterProcess();
         }
      }
      catch (BaseException& e)
      {
         ErrLog (<< "Unhandled exception: " << e);
      }
   }
   WarningLog (<< "Shutting down stack thread");
}

void
StackThread::buildFdSet(FdSet& fdset)
{}

unsigned int
StackThread::getTimeTillNextProcessMS() const
{
//   !dcm! moved the 25 ms min logic here
//   return INT_MAX;
   return 25;   
}

/* ====================================================================
 * 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/>.
 *
 */