mirror of
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109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
/********************************************************************************
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* Copyright (C) 2014 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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/**
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* Sampler.cpp
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*
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* @since 2014-10-10
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* @author A. Rybalchenko
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*/
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#include "Sampler.h"
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#include <thread>
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using namespace std;
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namespace example_region
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{
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Sampler::Sampler()
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: fMsgSize(10000)
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, fLinger(100)
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, fMaxIterations(0)
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, fNumIterations(0)
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, fRegion(nullptr)
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, fNumUnackedMsgs(0)
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{}
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void Sampler::InitTask()
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{
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fMsgSize = fConfig->GetProperty<int>("msg-size");
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fLinger = fConfig->GetProperty<uint32_t>("region-linger");
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fMaxIterations = fConfig->GetProperty<uint64_t>("max-iterations");
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fChannels.at("data").at(0).Transport()->SubscribeToRegionEvents([](FairMQRegionInfo info) {
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LOG(info) << "Region event: " << info.event << ": "
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<< (info.managed ? "managed" : "unmanaged")
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<< ", id: " << info.id
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<< ", ptr: " << info.ptr
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<< ", size: " << info.size
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<< ", flags: " << info.flags;
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});
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fRegion = FairMQUnmanagedRegionPtr(NewUnmanagedRegionFor("data",
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0,
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10000000,
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[this](const std::vector<fair::mq::RegionBlock>& blocks) { // callback to be called when message buffers no longer needed by transport
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lock_guard<mutex> lock(fMtx);
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fNumUnackedMsgs -= blocks.size();
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if (fMaxIterations > 0) {
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LOG(info) << "Received " << blocks.size() << " acks";
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}
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}
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));
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fRegion->SetLinger(fLinger);
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}
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bool Sampler::ConditionalRun()
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{
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FairMQMessagePtr msg(NewMessageFor("data", // channel
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0, // sub-channel
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fRegion, // region
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fRegion->GetData(), // ptr within region
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fMsgSize, // offset from ptr
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nullptr // hint
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));
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// static_cast<char*>(fRegion->GetData())[3] = 97;
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// LOG(info) << "check: " << static_cast<char*>(fRegion->GetData())[3];
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// std::this_thread::sleep_for(std::chrono::seconds(1));
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lock_guard<mutex> lock(fMtx);
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if (Send(msg, "data", 0) > 0) {
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if (fMaxIterations > 0 && ++fNumIterations >= fMaxIterations) {
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LOG(info) << "Configured maximum number of iterations reached. Leaving RUNNING state.";
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return false;
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}
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}
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++fNumUnackedMsgs;
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return true;
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}
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void Sampler::ResetTask()
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{
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// On destruction UnmanagedRegion will try to TODO
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fRegion.reset();
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{
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lock_guard<mutex> lock(fMtx);
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if (fNumUnackedMsgs != 0) {
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LOG(info) << "Done, still not acknowledged: " << fNumUnackedMsgs;
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} else {
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LOG(info) << "All acknowledgements received.";
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}
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}
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fChannels.at("data").at(0).Transport()->UnsubscribeFromRegionEvents();
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}
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Sampler::~Sampler()
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{
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}
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} // namespace example_region
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