mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-13 00:31:14 +00:00
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/********************************************************************************
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* Copyright (C) 2014-2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#include <fairmq/Device.h>
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#include <fairmq/runDevice.h>
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#include <memory>
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namespace bpo = boost::program_options;
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using namespace std;
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using namespace fair::mq;
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namespace {
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struct Sink : Device
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{
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void InitTask() override
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{
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// Get the fMaxIterations value from the command line options (via fConfig)
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fMaxIterations = fConfig->GetProperty<uint64_t>("max-iterations");
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fChanName = fConfig->GetProperty<std::string>("chan-name");
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GetChannel(fChanName, 0).Transport()->SubscribeToRegionEvents([](RegionInfo info) {
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LOG(info) << "Region event: " << info.event << ": "
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<< (info.managed ? "managed" : "unmanaged") << ", id: " << info.id
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<< ", ptr: " << info.ptr << ", size: " << info.size
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<< ", flags: " << info.flags;
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});
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}
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void Run() override
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{
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Channel& dataIn = GetChannel(fChanName, 0);
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while (!NewStatePending()) {
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auto msg(dataIn.Transport()->CreateMessage());
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dataIn.Receive(msg);
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// void* ptr = msg->GetData();
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// char* cptr = static_cast<char*>(ptr);
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// LOG(info) << "check: " << cptr[3];
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if (fMaxIterations > 0 && ++fNumIterations >= fMaxIterations) {
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LOG(info) << "Configured max number of iterations reached. Leaving RUNNING state.";
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break;
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}
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}
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}
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void ResetTask() override
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{
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GetChannel(fChanName, 0).Transport()->UnsubscribeFromRegionEvents();
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}
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private:
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uint64_t fMaxIterations = 0;
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uint64_t fNumIterations = 0;
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std::string fChanName;
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};
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} // namespace
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void addCustomOptions(bpo::options_description& options)
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{
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options.add_options()
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("chan-name", bpo::value<std::string>()->default_value("data"), "name of the input channel")
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("max-iterations", bpo::value<uint64_t>()->default_value(0), "Maximum number of iterations of Run/ConditionalRun/OnData (0 - infinite)");
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}
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unique_ptr<Device> getDevice(ProgOptions& /*config*/) { return make_unique<Sink>(); }
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