pthread_cond_timedwait returning immediately

Question

I\'m having a strange problem. I have the following code:

    dbg(\"condwait: timeout = %d, %d\\n\", 
        abs_timeout->tv_sec, abs_timeout->tv_nsec);
          


        

Answer 1

Overflow in timespec is usually the culprit for weird timeouts.
Check for EINVAL:

void timespec_add(struct timespec* a, struct timespec* b, struct timespec* out)
{
    time_t sec = a->tv_sec + b->tv_sec;
    long nsec = a->tv_nsec + b->tv_nsec;

    sec += nsec / 1000000000L;
    nsec = nsec % 1000000000L;

    out->tv_sec = sec;
    out->tv_nsec = nsec;
}