musl/compat/time32/timerfd_settime32.c

27 lines
976 B
C

#include "time32.h"
#include <time.h>
#include <sys/timerfd.h>
int __timerfd_settime32(int t, int flags, const struct itimerspec32 *restrict val32, struct itimerspec32 *restrict old32)
{
struct itimerspec old;
int r = timerfd_settime(t, flags, (&(struct itimerspec){
.it_interval.tv_sec = val32->it_interval.tv_sec,
.it_interval.tv_nsec = val32->it_interval.tv_nsec,
.it_value.tv_sec = val32->it_value.tv_sec,
.it_value.tv_nsec = val32->it_value.tv_nsec}),
old32 ? &old : 0);
if (r) return r;
/* The above call has already committed to success by changing the
* timer setting, so we can't fail on out-of-range old value.
* Since these are relative times, values large enough to overflow
* don't make sense anyway. */
if (old32) {
old32->it_interval.tv_sec = old.it_interval.tv_sec;
old32->it_interval.tv_nsec = old.it_interval.tv_nsec;
old32->it_value.tv_sec = old.it_value.tv_sec;
old32->it_value.tv_nsec = old.it_value.tv_nsec;
}
return 0;
}