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Session name is given to each device via `--session`, which must be synchronized from a higher level, e.g. from start script or command & control entity.
70 lines
2.1 KiB
C++
70 lines
2.1 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 version 3 (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#ifndef FAIR_MQ_SHMEM_MONITOR_H_
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#define FAIR_MQ_SHMEM_MONITOR_H_
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#include <boost/interprocess/managed_shared_memory.hpp>
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#include <thread>
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#include <chrono>
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#include <atomic>
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#include <string>
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namespace fair
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{
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namespace mq
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{
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namespace shmem
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{
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class Monitor
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{
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public:
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Monitor(const std::string& sessionName, bool selfDestruct, bool interactive, unsigned int timeoutInMS);
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Monitor(const Monitor&) = delete;
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Monitor operator=(const Monitor&) = delete;
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void CatchSignals();
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void Run();
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virtual ~Monitor();
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static void Cleanup(const std::string& sessionName);
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static void RemoveObject(const std::string&);
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static void RemoveQueue(const std::string&);
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private:
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void PrintHeader();
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void PrintHelp();
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void PrintQueues();
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void MonitorHeartbeats();
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void CheckSegment();
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void Interactive();
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void SignalMonitor();
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bool fSelfDestruct; // will self-destruct after the memory has been closed
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bool fInteractive; // running in interactive mode
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bool fSeenOnce; // true is segment has been opened successfully at least once
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unsigned int fTimeoutInMS;
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std::string fSessionName;
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std::string fSegmentName;
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std::string fManagementSegmentName;
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std::string fControlQueueName;
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std::atomic<bool> fTerminating;
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std::atomic<bool> fHeartbeatTriggered;
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std::chrono::high_resolution_clock::time_point fLastHeartbeat;
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std::thread fSignalThread;
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boost::interprocess::managed_shared_memory fManagementSegment;
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};
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} // namespace shmem
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} // namespace mq
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} // namespace fair
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#endif /* FAIR_MQ_SHMEM_MONITOR_H_ */ |