nsz Git - musl/blob - compat/time32/timerfd_settime32.c

   1 #include "time32.h"
   2 #include <time.h>
   3 #include <sys/timerfd.h>
   4
   5 int __timerfd_settime32(int t, int flags, const struct itimerspec32 *restrict val32, struct itimerspec32 *restrict old32)
   6 {
   7         struct itimerspec old;
   8         int r = timerfd_settime(t, flags, (&(struct itimerspec){
   9                 .it_interval.tv_sec = val32->it_interval.tv_sec,
  10                 .it_interval.tv_nsec = val32->it_interval.tv_nsec,
  11                 .it_value.tv_sec = val32->it_value.tv_sec,
  12                 .it_value.tv_nsec = val32->it_value.tv_nsec}),
  13                 old32 ? &old : 0);
  14         if (r) return r;
  15         /* The above call has already committed to success by changing the
  16          * timer setting, so we can't fail on out-of-range old value.
  17          * Since these are relative times, values large enough to overflow
  18          * don't make sense anyway. */
  19         if (old32) {
  20                 old32->it_interval.tv_sec = old.it_interval.tv_sec;
  21                 old32->it_interval.tv_nsec = old.it_interval.tv_nsec;
  22                 old32->it_value.tv_sec = old.it_value.tv_sec;
  23                 old32->it_value.tv_nsec = old.it_value.tv_nsec;
  24         }
  25         return 0;
  26 }