99 lines
2.7 KiB
C++
Executable File
99 lines
2.7 KiB
C++
Executable File
#pragma once
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/**
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* @RDE_HEADER@
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* Thread management for generic FTCs
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* $Id: generic_ftc_impl.h 62388 2024-03-27 10:41:26Z wille_m $
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* $HeadURL: svn://slssvn/TDS/branches/product/features/swp_2023_devel/Lts/DDS/FTC/generic_ftc_impl.h $
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* $Author: wille_m $
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*
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* Created by Mike Wille, ESZS, 27-03-2024
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*/
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#include <QObject>
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#include <QAtomicInt>
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#include <QTimer>
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#include <thread>
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#include <exception>
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#include <condition_variable>
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class CancelationPointReached : public std::runtime_error
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{
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public:
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//using std::runtime_error::runtime_error;
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explicit CancelationPointReached()
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: std::runtime_error("CancelationPointReached")
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{}
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};
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class Threading // : public QObject
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{
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//Q_OBJECT
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public:
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Threading() = default;
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~Threading();
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protected:
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void preInit() const;
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// managing thread:
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void createThread(); // creates a thread if not already running - run before adding requests
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void runThread(); // notify thread
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// m_conditionMutex
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inline bool isRun() const { return (m_run != 0); }
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inline void setRun(bool run) { m_run = (run ? 1 : 0); }
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// m_conditionMutex
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inline void setWorkAvailable(bool workAvailable) { m_workAvailable = (workAvailable ? 1 : 0); }
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inline bool isWorkAvailable() const { return (m_workAvailable != 0); }
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// m_conditionMutex
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inline void setWorking(bool working) { m_isWorking = (working ? 1 : 0); }
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inline bool isWorking() const { return (m_isWorking != 0); }
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const QString &threadName() const;
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inline const char *posixThreadName() const;
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virtual void work() = 0;
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virtual QString functionTopicName() const = 0;
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virtual int partitionId() const = 0;
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virtual QString partitionType() const = 0;
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virtual void cleanupThread() = 0; // in-thread!
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virtual void threadDone() = 0;
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inline void cancellationPoint() const noexcept(false) // in-thread
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{
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if (!isRun())
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{
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// fprintf(stderr, "Threading: cancelation point reached\n");
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throw CancelationPointReached();
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}
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}
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std::mutex m_conditionMutex;
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private:
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inline bool isCleanupNeeded() const { return (m_cleanupNeeded != 0); }
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inline void setCleanupNeeded(bool cleanupNeeded) { m_cleanupNeeded = (cleanupNeeded ? 1 : 0); }
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void run(const QString &threadName); // in-thread
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//void stop();
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std::unique_ptr<QTimer> m_threadLifetime;
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QAtomicInt m_run { 0 };
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QAtomicInt m_cleanupNeeded { 1 };
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std::thread m_thread; // invalid / not a thread
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std::condition_variable m_condition;
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QAtomicInt m_workAvailable { 0 };
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QAtomicInt m_isWorking { 0 };
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mutable QString m_threadName;
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mutable std::string m_posixThreadName;
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QAtomicInt m_alreadyThreaded;
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mutable int m_partitionId { -1 };
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mutable QString m_partitionType;
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bool m_used { false };
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bool m_createThreadCalledBefore { false };
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};
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