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Use our own gettimeofday implementation on windows for it to be consistent across ming builds and higher resolution.

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This commit is contained in:
Con Kolivas 2013-08-22 12:24:39 +10:00
parent 70bc62c0f8
commit acc1b7df1b
1 changed files with 26 additions and 8 deletions
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34
util.c
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@ -804,14 +804,6 @@ void thr_info_cancel(struct thr_info *thr)
cgsem_destroy(&thr->sem);
}
/* This is a cgminer gettimeofday wrapper. Since we always call gettimeofday
* with tz set to NULL, and windows' default resolution is only 15ms, this
* gives us higher resolution times on windows. */
void cgtime(struct timeval *tv)
{
gettimeofday(tv, NULL);
}
void subtime(struct timeval *a, struct timeval *b)
{
timersub(a, b, b);
@ -941,7 +933,33 @@ void cgtimer_sub(cgtimer_t *a, cgtimer_t *b, cgtimer_t *res)
res->tv_sec--;
}
}
/* This is a cgminer gettimeofday wrapper. Since we always call gettimeofday
* with tz set to NULL, and windows' default resolution is only 15ms, this
* gives us higher resolution times on windows. */
void cgtime(struct timeval *tv)
{
gettimeofday(tv, NULL);
}
#else
/* Windows start time is since 1601 lol so convert it to unix epoch 1970. */
#define EPOCHFILETIME (116444736000000000LL)
void cgtime(struct timeval *tv)
{
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);
tv->tv_sec = lidiv.quot;
tv->tv_usec = lidiv.rem / 10;
}
void cgtimer_time(cgtimer_t *ts_start)
{
cgtime(ts_start);