dumprocesshandler.cxx

这是国外的resip协议栈

#include "resip/stack/SipStack.hxx"
#include "resip/dum/DialogUsageManager.hxx"
#include "resip/dum/DumProcessHandler.hxx"
#include "rutil/Logger.hxx"

#define RESIPROCATE_SUBSYSTEM Subsystem::DUM

namespace resip {

DumProcessHandler::DumProcessHandler(ExternalTimer* et) :
   mHaveActiveTimer(false),
   mDum(0),
   mExternalTimer(et),
   mStopped(false),
   mCurrentlyProcessing(false)
{
}

void 
DumProcessHandler::start(DialogUsageManager* dum)
{
   mDum = dum;
   mExternalTimer->setHandler(this);
   mTimerID = mExternalTimer->generateAsyncID();
}

void
DumProcessHandler::handleProcessNotification()
{
#if 0 // !dcm! this needs to be fixed in the new model
   //only works when there is exactly one thread causing notifications; could be
   //made thread safecancelled
   if (!mCurrentlyProcessing && !mStopped)
   {
      mCurrentlyProcessing = true;
      //very temporary
      //FD_ISSET     ??
      FdSet fds;
      mDum->buildFdSet(fds);
      if (fds.size > 0)
      {         
         fds.selectMilliSeconds((long)0);
      }
      
      int timeTillProcess = 0;      
      do
      {
         mDum->process(fds);
         timeTillProcess = mDum->getTimeTillNextProcessMS();
      }
      while (timeTillProcess == 0);
      if (timeTillProcess != INT_MAX)
      {
         if (mHaveActiveTimer)
         {
            mExternalTimer->deleteTimer(mTimerID);
         }         
         assert(timeTillProcess < 60*4*60*1000); //4hr sanity check
         mTimerID = mExternalTimer->generateAsyncID();
         DebugLog ( << "Setting dum process timer: " << timeTillProcess);
         mExternalTimer->createTimer(mTimerID, timeTillProcess);
         mHaveActiveTimer = true;         
      }
      mCurrentlyProcessing = false;
   }   
#endif
}

void 
DumProcessHandler::handleTimeout(AsyncID timerID)
{
   assert(timerID == mTimerID);   
   mHaveActiveTimer = false;   
   handleProcessNotification();
}


void 
DumProcessHandler::stop()
{
   mStopped = true;
   if (mHaveActiveTimer)
   {
      mExternalTimer->deleteTimer(mTimerID);
   }         
}

} // namespace resip

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