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yap-6.3/os/libtai/taia_now.c
Vitor Santos Costa 9cfd4d8d8b move package/PLStream to os
modify Makefiles accordingly
define __unix__ on Unix like clones (OSX, AIX, etc).
2011-09-04 19:42:33 +02:00

41 lines
1.2 KiB
C

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