github.com/afumu/libc@v0.0.6/musl/compat/time32/timerfd_settime32.c (about)

     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  }