int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex,
const struct timespec *abstime) {
FILETIME filetime;
ULARGE_INTEGER rtime;
struct timeval targ_time, cur_time, delta_time;
struct timespec cur_time_ns;
DWORD millis;
// GetSystemTimeAsFileTime() is not available on CE
SYSTEMTIME st;
GetSystemTime(&st);
SystemTimeToFileTime(&st, &filetime);
rtime.LowPart = filetime.dwLowDateTime;
rtime.HighPart = filetime.dwHighDateTime;
rtime.QuadPart -= epoch_time;
cur_time_ns.tv_sec = (long)(rtime.QuadPart / 10000000);
cur_time_ns.tv_nsec = (long)((rtime.QuadPart % 10000000)*100);
TIMESPEC_TO_TIMEVAL(&cur_time, &cur_time_ns);
TIMESPEC_TO_TIMEVAL(&targ_time, abstime);
timersub(&targ_time, &cur_time, &delta_time);
if(delta_time.tv_sec < 0) // abstime already passed?
millis = 0;
else {
millis = delta_time.tv_usec/1000;
millis += delta_time.tv_sec *1000;
if (delta_time.tv_usec % 1000) // round up to next millisecond
millis++;
}
return usbi_cond_intwait(cond, mutex, millis);
}
int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex,
const struct timespec *abstime) {
FILETIME filetime;
ULARGE_INTEGER rtime;
struct timeval targ_time, cur_time, delta_time;
struct timespec cur_time_ns;
DWORD millis;
extern const uint64_t epoch_time;
GetSystemTimeAsFileTime(&filetime);
rtime.LowPart = filetime.dwLowDateTime;
rtime.HighPart = filetime.dwHighDateTime;
rtime.QuadPart -= epoch_time;
cur_time_ns.tv_sec = (long)(rtime.QuadPart / 10000000);
cur_time_ns.tv_nsec = (long)((rtime.QuadPart % 10000000)*100);
TIMESPEC_TO_TIMEVAL(&cur_time, &cur_time_ns);
TIMESPEC_TO_TIMEVAL(&targ_time, abstime);
timersub(&targ_time, &cur_time, &delta_time);
if(delta_time.tv_sec < 0)
millis = 0;
else {
millis = delta_time.tv_usec/1000;
millis += delta_time.tv_sec *1000;
if (delta_time.tv_usec % 1000)
millis++;
}
return usbi_cond_intwait(cond, mutex, millis);
}
// N.B.: usbi_cond_*wait() can also return ENOMEM, even though pthread_cond_*wait cannot!
int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex) {
return usbi_cond_intwait(cond, mutex, INFINITE);
}