FairMQ/examples/MQ/8-multipart/FairMQExample8Sampler.cxx
Alexey Rybalchenko bbadf09aad FairMQ: Extend Multipart and messaging API
- Extend the multipart API to allow sending vectors of messages or helper
   thin wrapper FairMQParts. See example in examples/MQ/8-multipart.
 - NewMessage() can be used in devices instead of
   fTransportFactory->CreateMessage().
   Possible arguments remain unchanged (no args, size or data+size).
 - Send()/Receive() methods can be used in devices instead of
   fChannels.at("chan").at(i).Send()/Receive():
   Send(msg, "chan", i = 0), Receive(msg, "chan", i = 0).
 - Use the new methods in MQ examples and tests.
 - No breaking changes, but FAIRMQ_INTERFACE_VERSION is incremented to 3
   to allow to check for new methods.
2018-05-02 16:12:57 +02:00

68 lines
1.9 KiB
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/********************************************************************************
* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
* *
* This software is distributed under the terms of the *
* GNU Lesser General Public Licence version 3 (LGPL) version 3, *
* copied verbatim in the file "LICENSE" *
********************************************************************************/
/**
* FairMQExample8Sampler.cpp
*
* @since 2014-10-10
* @author A. Rybalchenko
*/
#include <boost/thread.hpp>
#include <boost/bind.hpp>
#include "FairMQExample8Sampler.h"
#include "FairMQLogger.h"
using namespace std;
struct Ex8Header {
int32_t stopFlag;
};
FairMQExample8Sampler::FairMQExample8Sampler()
{
}
void FairMQExample8Sampler::Run()
{
int counter = 0;
// Check if we are still in the RUNNING state.
while (CheckCurrentState(RUNNING))
{
Ex8Header* header = new Ex8Header;
// Set stopFlag to 1 for the first 4 messages, and to 0 for the 5th.
counter < 5 ? header->stopFlag = 0 : header->stopFlag = 1;
FairMQParts parts;
parts.AddPart(NewMessage(header, sizeof(Ex8Header)));
parts.AddPart(NewMessage(1000));
LOG(INFO) << "Sending header with stopFlag: " << header->stopFlag;
LOG(INFO) << "Sending body of size: " << parts.At(1).GetSize();
Send(parts, "data-out");
// Go out of the sending loop if the stopFlag was sent.
if (counter == 5)
{
break;
}
counter++;
// Wait a second to keep the output readable.
boost::this_thread::sleep(boost::posix_time::milliseconds(1000));
}
LOG(INFO) << "Going out of RUNNING state.";
}
FairMQExample8Sampler::~FairMQExample8Sampler()
{
}