Initial commit

src/common/timer.h

@@ -0,0 +1,47 @@
+#ifndef KYTY_COMMON_TIMER_H_
+#define KYTY_COMMON_TIMER_H_
+
+#include "common/common.h"
+
+namespace Common {
+
+class Timer final {
+public:
+	Timer() noexcept;
+	~Timer() = default;
+
+	void Start();
+
+	void Pause();
+
+	void Resume();
+
+	[[nodiscard]] bool IsPaused() const;
+
+	// return time in milliseconds
+	[[nodiscard]] double GetTimeMs() const;
+
+	// return time in seconds
+	[[nodiscard]] double GetTimeS() const;
+
+	// return time in ticks
+	[[nodiscard]] uint64_t GetTicks() const;
+
+	// return ticks frequency
+	[[nodiscard]] uint64_t GetFrequency() const;
+
+	KYTY_CLASS_NO_COPY(Timer);
+
+	[[nodiscard]] static uint64_t QueryPerformanceFrequency();
+	[[nodiscard]] static uint64_t QueryPerformanceCounter();
+
+private:
+	bool     m_is_paused = true;
+	uint64_t m_Frequency = 0;
+	uint64_t m_StartTime = 0;
+	uint64_t m_PauseTime = 0;
+};
+
+} // namespace Common
+
+#endif /* KYTY_COMMON_TIMER_H_ */