FairMQ/examples/multiple-transports/Sink.cxx
2019-07-10 19:35:18 +02:00

79 lines
2.3 KiB
C++

/********************************************************************************
* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
* *
* This software is distributed under the terms of the *
* GNU Lesser General Public Licence (LGPL) version 3, *
* copied verbatim in the file "LICENSE" *
********************************************************************************/
/**
* Sink.cxx
*
* @since 2014-10-10
* @author A. Rybalchenko
*/
#include "Sink.h"
using namespace std;
namespace example_multiple_transports
{
Sink::Sink()
: fMaxIterations(0)
, fNumIterations1(0)
, fNumIterations2(0)
{
// register a handler for data arriving on "data" channel
OnData("data1", &Sink::HandleData1);
OnData("data2", &Sink::HandleData2);
}
void Sink::InitTask()
{
fMaxIterations = fConfig->GetProperty<uint64_t>("max-iterations");
}
// handler is called whenever a message arrives on "data", with a reference to the message and a sub-channel index (here 0)
bool Sink::HandleData1(FairMQMessagePtr& /*msg*/, int /*index*/)
{
fNumIterations1++;
// Creates a message using the transport of channel ack
FairMQMessagePtr ack(NewMessageFor("ack", 0));
if (Send(ack, "ack") < 0)
{
return false;
}
// return true if want to be called again (otherwise go to IDLE state)
return CheckIterations();
}
// handler is called whenever a message arrives on "data", with a reference to the message and a sub-channel index (here 0)
bool Sink::HandleData2(FairMQMessagePtr& /*msg*/, int /*index*/)
{
fNumIterations2++;
// return true if want to be called again (otherwise go to IDLE state)
return CheckIterations();
}
bool Sink::CheckIterations()
{
if (fMaxIterations > 0)
{
if (fNumIterations1 >= fMaxIterations && fNumIterations2 >= fMaxIterations)
{
LOG(info) << "Configured maximum number of iterations reached & Received messages from both sources. Leaving RUNNING state.";
return false;
}
}
return true;
}
Sink::~Sink()
{
}
} // namespace example_multiple_transports