Continues migration with DDS, Common

Lts/DDS/FTC/generic_ftc_threading.h

@@ -0,0 +1,91 @@
+#pragma once
+
+
+
+#include <QObject>
+#include <QAtomicInt>
+#include <QTimer>
+
+#include <thread>
+#include <exception>
+#include <condition_variable>
+
+
+class CancelationPointReached : public std::runtime_error
+{
+public:
+  
+  explicit CancelationPointReached()
+    : std::runtime_error("CancelationPointReached")
+  {}
+};
+
+
+class Threading 
+{
+  
+public:
+  Threading() = default;
+  ~Threading();
+
+protected:
+  void preInit() const;
+
+  
+  void createThread(); 
+  void runThread(); 
+
+  
+  inline bool isRun() const { return (m_run != 0); }
+  inline void setRun(bool run) { m_run = (run ? 1 : 0); }
+
+  
+  inline void setWorkAvailable(bool workAvailable) { m_workAvailable = (workAvailable ? 1 : 0); }
+  inline bool isWorkAvailable() const { return (m_workAvailable != 0); }
+
+  
+  inline void setWorking(bool working) { m_isWorking = (working ? 1 : 0); }  
+  inline bool isWorking() const { return (m_isWorking != 0); }
+
+  const QString &threadName() const;
+  inline const char *posixThreadName() const;
+
+  virtual void work() = 0;
+  virtual QString functionTopicName() const = 0;
+  virtual int partitionId() const = 0;
+  virtual QString partitionType() const = 0;
+  virtual void cleanupThread() = 0; 
+  virtual void threadDone() = 0;
+
+  inline void cancellationPoint() const noexcept(false) 
+  {
+    if (!isRun())
+    {
+     
+      throw CancelationPointReached();
+    }
+  }
+
+  std::mutex m_conditionMutex;
+
+private:
+  inline bool isCleanupNeeded() const { return (m_cleanupNeeded != 0); }
+  inline void setCleanupNeeded(bool cleanupNeeded) { m_cleanupNeeded = (cleanupNeeded ? 1 : 0); }
+  void run(const QString &threadName); 
+
+  
+  std::unique_ptr<QTimer> m_threadLifetime;
+  QAtomicInt m_run { 0 };
+  QAtomicInt m_cleanupNeeded { 1 };
+  std::thread m_thread; 
+  std::condition_variable m_condition;
+  QAtomicInt m_workAvailable { 0 };
+  QAtomicInt m_isWorking { 0 };
+  mutable QString m_threadName;
+  mutable std::string m_posixThreadName;
+  QAtomicInt m_alreadyThreaded;
+  mutable int m_partitionId { -1 };
+  mutable QString m_partitionType;
+  bool m_used { false };
+  bool m_createThreadCalledBefore { false };
+};