mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-13 08:41:16 +00:00
69 lines
2.2 KiB
C++
69 lines
2.2 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 <fairmq/Device.h>
|
|
#include <fairmq/runDevice.h>
|
|
|
|
#include <cstdint> // uint64_t
|
|
|
|
namespace bpo = boost::program_options;
|
|
|
|
class Sampler : public FairMQDevice
|
|
{
|
|
public:
|
|
Sampler() = default;
|
|
|
|
void InitTask() override
|
|
{
|
|
fIterations = fConfig->GetValue<uint64_t>("iterations");
|
|
}
|
|
|
|
protected:
|
|
bool ConditionalRun() override
|
|
{
|
|
// 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
|
|
FairMQMessagePtr msg(NewSimpleMessage("Data"));
|
|
|
|
LOG(info) << "Sending \"Data\"";
|
|
|
|
// in case of error or transfer interruption, return false to go to IDLE state
|
|
// successfull transfer will return number of bytes transfered (can be 0 if sending an empty message).
|
|
if (Send(msg, "data1") < 0) {
|
|
return false;
|
|
}
|
|
|
|
if (fIterations > 0) {
|
|
++fCounter;
|
|
if (fCounter >= fIterations) {
|
|
LOG(info) << "Sent " << fCounter << " messages. Finished.";
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
uint64_t fIterations = 0;
|
|
uint64_t fCounter = 0;
|
|
};
|
|
|
|
void addCustomOptions(bpo::options_description& options)
|
|
{
|
|
options.add_options()(
|
|
"iterations,i",
|
|
bpo::value<uint64_t>()->default_value(1000),
|
|
"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>();
|
|
}
|