FairMQ/examples/MQ/5-req-rep/FairMQExample5Client.cxx
Alexey Rybalchenko da10c64800 Enable new callback API
- OnData() channel data handler.
 - ConditionalRun() for devices without incoming data.
 - Header file with common main(), to be extended with getDevice/addCustomOptions.
 - Update examples (MQ/Tutorial3) to use the new API and config.
 - NewSimpleMessage() for simpler creation of small messages (additional copy).
 - Replace SetProperty/GetProperty with fConfig access.
 - Runtime configurable channel names for common devices.
 - Configurable logging interval per channel.
 - FairMQMultiplier for distributing same data to multiple outputs.
 - Cleanup state machine messages.
 - Cmd option to toggle signal handling.
 - Simpler API for send/receive timeouts.
 - Enable --log-to-file.
 - Fix coverity issues, warnings.
 - Various code cleanup and minor tweaks.
2018-05-02 16:12:57 +02:00

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2.2 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" *
********************************************************************************/
/**
* FairMQExample5Client.cpp
*
* @since 2014-10-10
* @author A. Rybalchenko
*/
#include <memory> // unique_ptr
#include <thread> // this_thread::sleep_for
#include <chrono>
#include "FairMQExample5Client.h"
#include "FairMQLogger.h"
#include "FairMQProgOptions.h"
using namespace std;
FairMQExample5Client::FairMQExample5Client()
: fText()
{
}
void FairMQExample5Client::InitTask()
{
fText = fConfig->GetValue<string>("text");
}
bool FairMQExample5Client::ConditionalRun()
{
this_thread::sleep_for(chrono::seconds(1));
string* text = new string(fText);
// create message object with a pointer to the data buffer,
// its size,
// custom deletion function (called when transfer is done),
// and pointer to the object managing the data buffer
FairMQMessagePtr request(NewMessage(const_cast<char*>(text->c_str()), // data
text->length(), // size
[](void* /*data*/, void* object) { delete static_cast<string*>(object); }, // deletion callback
text)); // object that manages the data
FairMQMessagePtr reply(NewMessage());
LOG(INFO) << "Sending \"" << fText << "\" to server.";
if (Send(request, "data") > 0)
{
if (Receive(reply, "data") >= 0)
{
LOG(INFO) << "Received reply from server: \"" << string(static_cast<char*>(reply->GetData()), reply->GetSize()) << "\"";
return true;
}
}
return false;
}
FairMQExample5Client::~FairMQExample5Client()
{
}