mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-13 08:41:16 +00:00
91 lines
3.0 KiB
C++
91 lines
3.0 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" *
|
|
********************************************************************************/
|
|
|
|
#include "Header.h"
|
|
|
|
#include <fairmq/Device.h>
|
|
#include <fairmq/runDevice.h>
|
|
|
|
#include <chrono>
|
|
#include <cstdint>
|
|
#include <thread> // this_thread::sleep_for
|
|
|
|
namespace bpo = boost::program_options;
|
|
|
|
struct Sampler : fair::mq::Device
|
|
{
|
|
void InitTask() override
|
|
{
|
|
fMaxIterations = fConfig->GetProperty<uint64_t>("max-iterations");
|
|
}
|
|
|
|
bool ConditionalRun() override
|
|
{
|
|
example_multipart::Header header;
|
|
header.stopFlag = 0;
|
|
|
|
// Set stopFlag to 1 for last message.
|
|
if (fMaxIterations > 0 && fNumIterations == fMaxIterations - 1) {
|
|
header.stopFlag = 1;
|
|
}
|
|
LOG(info) << "Sending header with stopFlag: " << header.stopFlag;
|
|
|
|
fair::mq::Parts parts;
|
|
|
|
// NewSimpleMessage creates a copy of the data and takes care of its destruction (after the transfer takes place).
|
|
// Should only be used for small data because of the cost of an additional copy
|
|
parts.AddPart(NewSimpleMessage(header));
|
|
parts.AddPart(NewMessage(1000));
|
|
|
|
// create more data parts, testing the fair::mq::Parts in-place constructor
|
|
fair::mq::Parts auxData{ NewMessage(500), NewMessage(600), NewMessage(700) };
|
|
assert(auxData.Size() == 3);
|
|
parts.AddPart(std::move(auxData));
|
|
assert(auxData.Size() == 0);
|
|
assert(parts.Size() == 5);
|
|
|
|
parts.AddPart(NewMessage());
|
|
|
|
assert(parts.Size() == 6);
|
|
|
|
parts.AddPart(NewMessage(100));
|
|
|
|
assert(parts.Size() == 7);
|
|
|
|
LOG(info) << "Sending body of size: " << parts.At(1)->GetSize();
|
|
|
|
Send(parts, "data");
|
|
|
|
// Go out of the sending loop if the stopFlag was sent.
|
|
if (fMaxIterations > 0 && ++fNumIterations >= fMaxIterations) {
|
|
LOG(info) << "Configured maximum number of iterations reached. Leaving RUNNING state.";
|
|
return false;
|
|
}
|
|
|
|
// Wait a second to keep the output readable.
|
|
std::this_thread::sleep_for(std::chrono::seconds(1));
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
uint64_t fMaxIterations = 5;
|
|
uint64_t fNumIterations = 0;
|
|
};
|
|
|
|
void addCustomOptions(bpo::options_description& options)
|
|
{
|
|
options.add_options()
|
|
("max-iterations", bpo::value<uint64_t>()->default_value(5), "Maximum number of iterations of Run/ConditionalRun/OnData (0 - infinite)");
|
|
}
|
|
|
|
std::unique_ptr<fair::mq::Device> getDevice(fair::mq::ProgOptions& /*config*/)
|
|
{
|
|
return std::make_unique<Sampler>();
|
|
}
|