Re: [avrdude-dev] Win 32 port

[Jan-Hinnerk Reichert]

Okay, it looks like gettimeofday() is somehow wrapped to a Windows 
call. So I think we should use the usecPerfDelay() with the following 
fallback.

The code is not tested. I haven't even compiled it.

================================================

unsigned usleep( unsigned int uSeconds )
{
  struct timeval t1, t2;

  if (usecPerfDelay(uSeconds))
    return;

  gettimeofday(&t2, NULL);

  /*
   * Wait for next tick. Otherwise we might get a shorter delay.
   *
   * An alternative would be to measure the timeslice once at
   * startup and add it to the delay time.
   */
  do {
    gettimeofday(&t1, NULL);
    /* NB: timercmp(&t1, &t2, ==) will not work here */
  } while ((t1.tv_sec==t2.tv_sec) && (t1.tv_nsec==t2.tv.nsec));

  /* loop for the remaining time */
  t2.tv_sec = uSeconds / 1000000UL;
  t2.tv_usec = uSeconds % 1000000UL;

  timeradd(&t1, &t2, &t1);

  do {
    /* Give up timeslice */
    sleep(0);
    gettimeofday(&t2, NULL);
  } while (timercmp(&t2, &t1, <));
}