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Abstract out the conversion of system time to an lldiv_t in decimicroseconds.

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This commit is contained in:
Con Kolivas 2013-08-22 12:55:09 +10:00
parent acc1b7df1b
commit d8e2a43712
1 changed files with 12 additions and 3 deletions
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15
util.c
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@ -944,18 +944,27 @@ void cgtime(struct timeval *tv)
#else
/* Windows start time is since 1601 lol so convert it to unix epoch 1970. */
#define EPOCHFILETIME (116444736000000000LL)
void cgtime(struct timeval *tv)
/* Return the system time as an lldiv_t in decimicroseconds. */
static void decius_time(lldiv_t *lidiv)
{
FILETIME ft;
LARGE_INTEGER li;
lldiv_t lidiv;
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
li.HighPart = ft.dwHighDateTime;
li.QuadPart -= EPOCHFILETIME;
/* SystemTime is in decimicroseconds so divide by an unusual number */
lidiv = lldiv(li.QuadPart, 10000000);
*lidiv = lldiv(li.QuadPart, 10000000);
}
void cgtime(struct timeval *tv)
{
lldiv_t lidiv;
decius_time(&lidiv);
tv->tv_sec = lidiv.quot;
tv->tv_usec = lidiv.rem / 10;
}