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90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/**
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* Jingga
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*
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* @copyright Jingga
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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#ifndef TOS_PLATFORM_WIN32_TIME_UTILS_H
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#define TOS_PLATFORM_WIN32_TIME_UTILS_H
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#include <stdio.h>
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#include <windows.h>
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#include <time.h>
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#include "../../stdlib/Types.h"
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void usleep(uint64 microseconds)
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{
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LARGE_INTEGER frequency, start, end;
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QueryPerformanceFrequency(&frequency);
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QueryPerformanceCounter(&start);
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long long target = start.QuadPart + (microseconds * frequency.QuadPart) / 1000000;
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do {
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QueryPerformanceCounter(&end);
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} while (end.QuadPart < target);
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}
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inline
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uint64 system_time()
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{
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SYSTEMTIME systemTime;
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FILETIME fileTime;
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ULARGE_INTEGER largeInt;
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GetLocalTime(&systemTime);
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SystemTimeToFileTime(&systemTime, &fileTime);
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// Convert FILETIME to a 64-bit integer
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largeInt.LowPart = fileTime.dwLowDateTime;
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largeInt.HighPart = fileTime.dwHighDateTime;
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return ((uint64) (largeInt.QuadPart / 10000000ULL)) - ((uint64) 11644473600ULL);
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}
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// doesn't return clock time, only to return time since program start
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// -> can be used for profiling
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inline
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uint64 time_mu()
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{
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LARGE_INTEGER counter;
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QueryPerformanceCounter(&counter);
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static LARGE_INTEGER frequency;
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QueryPerformanceFrequency(&frequency);
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ASSERT_SIMPLE(counter.QuadPart != frequency.QuadPart);
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ASSERT_SIMPLE(counter.QuadPart != 1);
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return (counter.QuadPart * 1000000) / frequency.QuadPart;
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}
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inline
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uint64 unix_epoch_s()
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{
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FILETIME ft;
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GetSystemTimeAsFileTime(&ft);
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ULARGE_INTEGER li;
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li.LowPart = ft.dwLowDateTime;
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li.HighPart = ft.dwHighDateTime;
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return (uint64) (li.QuadPart - 116444736000000000ULL) / 10000000ULL;
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}
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inline
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DWORD timespec_to_ms(const timespec* abstime)
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{
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if (abstime == NULL) {
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return INFINITE;
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}
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uint64 seconds_since_epoch = unix_epoch_s();
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DWORD t = (DWORD) (((abstime->tv_sec - seconds_since_epoch) * 1000) + (abstime->tv_nsec / 1000000));
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return t < 0 ? 1 : t;
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}
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#endif |