73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
/*
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* time.c
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*
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* Copyright 2013-2024 Michael Zillgith
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*
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* This file is part of Platform Abstraction Layer (libpal)
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* for libiec61850, libmms, and lib60870.
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*/
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#include "hal_time.h"
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#include <time.h>
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#include <windows.h>
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uint64_t
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Hal_getTimeInMs()
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{
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FILETIME ft;
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uint64_t now;
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static const uint64_t DIFF_TO_UNIXTIME = 11644473600000ULL;
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GetSystemTimeAsFileTime(&ft);
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now = (LONGLONG)ft.dwLowDateTime + ((LONGLONG)(ft.dwHighDateTime) << 32LL);
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return (now / 10000LL) - DIFF_TO_UNIXTIME;
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}
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nsSinceEpoch
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Hal_getTimeInNs()
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{
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FILETIME ft;
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static const uint64_t DIFF_TO_UNIXTIME = 11644473600000000000ULL;
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GetSystemTimeAsFileTime(&ft);
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nsSinceEpoch nsTime = (LONGLONG)ft.dwLowDateTime + ((LONGLONG)(ft.dwHighDateTime) << 32LL);
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nsTime = nsTime * 100LL - DIFF_TO_UNIXTIME;
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return nsTime;
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}
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bool
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Hal_setTimeInNs(nsSinceEpoch nsTime)
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{
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uint64_t t = (nsTime / 100ULL) + 116444736000000000ULL;
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FILETIME ft;
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ft.dwLowDateTime = (uint32_t)(t & 0xffffffff);
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ft.dwHighDateTime = (uint32_t)(t >> 32);
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SYSTEMTIME st;
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FileTimeToSystemTime(&ft, &st);
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return SetSystemTime(&st);
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}
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msSinceEpoch
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Hal_getMonotonicTimeInMs()
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{
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return (msSinceEpoch)GetTickCount64();
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}
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nsSinceEpoch
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Hal_getMonotonicTimeInNs()
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{
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return (nsSinceEpoch)(GetTickCount64() * 1000000ULL);
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}
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