TGo4TaskHandlerRunnable.cxx

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// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#include "TGo4TaskHandlerRunnable.h"

#include "TGo4Log.h"
#include "TGo4Socket.h"
#include "TGo4BufferQueue.h"
#include "TGo4TaskHandler.h"
#include "TGo4TaskHandlerAbortException.h"

#include "TGo4Thread.h"
#include "Go4EmergencyCommands.h"

TGo4TaskHandlerRunnable::TGo4TaskHandlerRunnable(const char *name, TGo4ThreadManager *man, TGo4TaskHandler *hand, Bool_t receivermode)
   :TGo4Runnable(name,man), fxTransport(nullptr), fbReceiverMode(0)
{
   fxTaskHandler = hand;
   fbReceiverMode = receivermode;
}

TGo4TaskHandlerRunnable::~TGo4TaskHandlerRunnable()
{
}

TGo4TaskHandler *TGo4TaskHandlerRunnable::GetTaskHandler()
{
   return fxTaskHandler;
}

Bool_t TGo4TaskHandlerRunnable::CheckStopBuffer(TBuffer *buf, Int_t *result)
{
   if (!buf)
      return kFALSE;
   Int_t val = TGo4BufferQueue::DecodeValueBuffer(buf);
   if (result)
      *result = val;
   if (val < 0)
      return kFALSE; // no valid message in buffer
   Go4EmergencyCommand_t comvalue = (Go4EmergencyCommand_t)(val);
   if (comvalue == kComCloseInput) {
      GetThread()->Stop();
      return kTRUE;
   } else if (comvalue == kComAbortTask) {
      TGo4Log::Debug(" !!!Receiving taskhandler abort buffer in %s !!!", GetName());
      throw TGo4TaskHandlerAbortException(this);

   } else {
      return kFALSE;
   }
}

Bool_t TGo4TaskHandlerRunnable::CheckTransportOpen()
{
   Bool_t open = kTRUE;
   if (!fxTransport)
      open = kFALSE;
   else if (!fxTransport->IsOpen())
      open = kFALSE;
   else
      open = kTRUE;
   if (!open)
      TGo4Thread::Sleep(TGo4TaskHandler::Get_fguPORTWAITTIME());
   // avoid wild looping in Run() when socket is not open
   return open;
}