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096c168dd7
* Add yield() function to tell the CPU that we're busy-waiting (rare) Use it only for the busy-wait in lag sync, which only happens in Windows. * Buildfix attempt
37 lines
938 B
C++
37 lines
938 B
C++
#pragma once
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#include <cstdint>
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// Seconds.
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double time_now_d();
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// Raw time in nanoseconds.
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// The only intended use is to match the timings from VK_GOOGLE_display_timing.
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uint64_t time_now_raw();
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// This is only interesting for Linux, in relation to VK_GOOGLE_display_timing.
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double from_time_raw(uint64_t raw_time);
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double from_time_raw_relative(uint64_t raw_time);
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// Sleep. Does not necessarily have millisecond granularity, especially on Windows.
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void sleep_ms(int ms);
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// Yield. Signals that this thread is busy-waiting but wants to allow other hyperthreads to run.
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void yield();
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void GetTimeFormatted(char formattedTime[13]);
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// Rust-style Instant for clear and easy timing.
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class Instant {
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public:
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static Instant Now() {
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return Instant(time_now_d());
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}
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double Elapsed() const {
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return time_now_d() - instantTime_;
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}
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private:
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explicit Instant(double initTime) : instantTime_(initTime) {}
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double instantTime_;
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};
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