41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
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#include <sys/types.h>
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#ifdef __WINDOWS__
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#define WINDOWS_LEAN_AND_MEAN 1
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#include <windows.h>
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#else
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#include <sys/time.h>
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#endif
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#include "taia.h"
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/* XXX: breaks tai encapsulation */
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/*-------------------------------------------------------------------------
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* The Microsoft Win32 API can return the current system time in "file
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* timestamp" format, which is a 64-bit value representing the number of
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* 100-nanosecond ticks since {AD1601-01-01 00:00:00 Z}.
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* 11644473600 is seconds offset AD1601 to AD1970
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*------------------------------------------------------------------------*/
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void taia_now(struct taia *t)
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{
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#ifdef __WINDOWS__
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FILETIME ft;
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int64_t cns; /* 100ns ticks */
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/* Get the current system time */
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GetSystemTimeAsFileTime(&ft);
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/* Convert to longtime_t form */
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cns = ((int64_t)ft.dwHighDateTime << 32) + ft.dwLowDateTime;
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t->sec.x = cns/10000000 - 11644473600 + ULL(4611686018427387914);
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t->nano = (long)((cns % 10000000))*100;
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t->atto = 0;
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#else
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struct timeval now;
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gettimeofday(&now,(struct timezone *) 0);
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t->sec.x = ULL(4611686018427387914) + (uint64_t) now.tv_sec;
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t->nano = 1000 * now.tv_usec + 500;
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t->atto = 0;
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#endif
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}
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