early-access version 1255

src/common/timer.h

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+// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <chrono>
+#include <string>
+#include "common/common_types.h"
+
+namespace Common {
+class Timer {
+public:
+    Timer();
+
+    void Start();
+    void Stop();
+    void Update();
+
+    // The time difference is always returned in milliseconds, regardless of alternative internal
+    // representation
+    [[nodiscard]] std::chrono::milliseconds GetTimeDifference();
+    void AddTimeDifference();
+
+    [[nodiscard]] static std::chrono::seconds GetTimeSinceJan1970();
+    [[nodiscard]] static std::chrono::seconds GetLocalTimeSinceJan1970();
+    [[nodiscard]] static double GetDoubleTime();
+
+    [[nodiscard]] static std::string GetTimeFormatted();
+    [[nodiscard]] std::string GetTimeElapsedFormatted() const;
+    [[nodiscard]] std::chrono::milliseconds GetTimeElapsed();
+
+    [[nodiscard]] static std::chrono::milliseconds GetTimeMs();
+
+private:
+    std::chrono::milliseconds m_LastTime;
+    std::chrono::milliseconds m_StartTime;
+    bool m_Running;
+};
+
+} // Namespace Common