First Commit

common/Timer.h

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+// SPDX-FileCopyrightText: 2002-2025 PCSX2 Dev Team
+// SPDX-License-Identifier: GPL-3.0+
+
+#pragma once
+#include <cstdint>
+
+namespace Common
+{
+	class Timer
+	{
+	public:
+		using Value = std::uint64_t;
+
+		Timer();
+
+		static Value GetCurrentValue();
+		static double ConvertValueToSeconds(Value value);
+		static double ConvertValueToMilliseconds(Value value);
+		static double ConvertValueToNanoseconds(Value value);
+		static Value ConvertSecondsToValue(double s);
+		static Value ConvertMillisecondsToValue(double s);
+		static Value ConvertNanosecondsToValue(double ns);
+
+		void Reset();
+		void ResetTo(Value value) { m_tvStartValue = value; }
+
+		Value GetStartValue() const { return m_tvStartValue; }
+
+		double GetTimeSeconds() const;
+		double GetTimeMilliseconds() const;
+		double GetTimeNanoseconds() const;
+
+		double GetTimeSecondsAndReset();
+		double GetTimeMillisecondsAndReset();
+		double GetTimeNanosecondsAndReset();
+
+		bool ResetIfSecondsPassed(double s);
+		bool ResetIfMillisecondsPassed(double s);
+		bool ResetIfNanosecondsPassed(double s);
+
+	private:
+		Value m_tvStartValue;
+	};
+} // namespace Common