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Copy patho2DeadlockReproducer.cxx
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66 lines (59 loc) · 1.9 KB
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
#include <fairmq/Device.h>
#include <fairmq/runDevice.h>
#include <string>
namespace bpo = boost::program_options;
void addCustomOptions(bpo::options_description& options)
{
}
struct Deadlocked : fair::mq::Device {
Deadlocked()
{
auto stateWatcher = [this](fair::mq::State newState) {
static bool first = true;
LOG(info) << "State changed to " << newState;
if (newState != fair::mq::State::Ready) {
LOG(info) << "Not ready state, ignoring";
return;
}
if (first) {
first = false;
return;
}
fair::mq::Parts parts;
LOG(info) << "Draining messages" << std::endl;
auto& channels = this->GetChannels();
LOG(info) << "Number of channels: " << channels.size();
if (channels.size() == 0) {
LOG(info) << "No messages to drain";
return;
}
auto& channel = channels.at("data")[0];
while (this->NewStatePending() == false) {
channel.Receive(parts, 10);
if (parts.Size() != 0) {
LOG(info) << "Draining" << parts.Size() << "messages";
}
}
LOG(info) << "Done draining";
};
this->SubscribeToStateChange("99-drain", stateWatcher);
}
void Run() override
{
LOG(info) << "Simply exit";
}
};
std::unique_ptr<fair::mq::Device> getDevice(fair::mq::ProgOptions& /*config*/)
{
return std::make_unique<Deadlocked>();
}