Duckstation/src/common/timer.h
2023-09-16 19:00:29 +10:00

51 lines
1.4 KiB
C++

// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
#pragma once
#include <cstdint>
namespace Common {
class Timer
{
public:
using Value = std::uint64_t;
Timer();
static double GetFrequency();
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);
static void BusyWait(std::uint64_t ns);
static void HybridSleep(std::uint64_t ns, std::uint64_t min_sleep_time = UINT64_C(2000000));
static void NanoSleep(std::uint64_t ns);
static void SleepUntil(Value value, bool exact);
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