Initial commit

libs/SysTimer.h

@@ -0,0 +1,83 @@
+#ifndef SYSTIMER_H
+#define SYSTIMER_H
+
+#include <cstdint>
+#include "CanFwInterface.h"
+
+// миллисекундный таймер. Макс. таймаут - 2**32 мс.
+
+class TimerMs {
+public:
+	typedef uint32_t T_Timer;
+
+	TimerMs()
+	{	Restart();		}
+	virtual ~TimerMs()
+	{	}
+
+	virtual inline T_Timer Restart(void)
+	{
+		auto prev = _tmr;
+		_tmr = CntValue();
+		return _tmr - prev;
+	}
+
+	inline T_Timer Value(void) const
+	{	return CntValue() - _tmr;	}
+
+	inline T_Timer Rest(const T_Timer timeout) const
+	{
+		T_Timer elapsed = Value();
+		if (elapsed < timeout)
+			return timeout - elapsed;
+		return 0;
+	}
+
+	inline bool CheckTimeout(const T_Timer timeout) const
+	{	return Value() > timeout;	}
+
+private:
+	T_Timer _tmr;
+
+	static inline T_Timer CntValue(void)
+	{	return CoreFunc->GetTickMs();	}
+
+};
+
+class TimerMsOnce : public TimerMs
+{
+public:
+	TimerMsOnce() :	TimerMs()
+	{	started = true;	}
+	virtual ~TimerMsOnce()
+	{	}
+
+	virtual inline T_Timer Restart(void)
+	{
+		auto elapsed = TimerMs::Restart();
+		started = true;
+		return elapsed;
+	}
+
+	inline bool IsStarted(void) const
+	{	return started;		}
+
+	inline void Stop(void)
+	{	started = false;	}
+
+	virtual inline bool CheckTimeout(T_Timer timeout)
+	{
+		if (started)
+		{
+			if (Value() <= timeout)
+				return false;
+			Stop();
+		}
+		return true;
+	}
+
+private:
+	bool started;
+};
+
+#endif // SYSTIMER_H