Function usleep

lib/usleep.c:48–65

Sleep USECONDS microseconds, or until a previously set timer goes off. */

/* Sleep USECONDS microseconds, or until a previously set timer goes off.  */
int
usleep(unsigned long useconds)
{
#ifdef apollo
    /* The usleep function does not work under the SYS5.3 environment.
       Use the Domain/OS time_$wait call instead. */
    time_$wait(time_$relative, DomainTime100mS, &DomainStatus);
#elif defined(HAVE_SSLEEP)  /* Win32 */
    Sleep(useconds / 1000);
#else
    struct timeval delay;

    delay.tv_sec = 0;
    delay.tv_usec = useconds;
    select(0, 0, 0, 0, &delay);
#endif
    return 0;
}

#endif /* !HAVE_USLEEP */