xref: /aosp_15_r20/external/musl/src/time/timer_gettime.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include <time.h>
2*c9945492SAndroid Build Coastguard Worker #include <limits.h>
3*c9945492SAndroid Build Coastguard Worker #include "pthread_impl.h"
4*c9945492SAndroid Build Coastguard Worker 
timer_gettime(timer_t t,struct itimerspec * val)5*c9945492SAndroid Build Coastguard Worker int timer_gettime(timer_t t, struct itimerspec *val)
6*c9945492SAndroid Build Coastguard Worker {
7*c9945492SAndroid Build Coastguard Worker 	if ((intptr_t)t < 0) {
8*c9945492SAndroid Build Coastguard Worker 		pthread_t td = (void *)((uintptr_t)t << 1);
9*c9945492SAndroid Build Coastguard Worker 		t = (void *)(uintptr_t)(td->timer_id & INT_MAX);
10*c9945492SAndroid Build Coastguard Worker 	}
11*c9945492SAndroid Build Coastguard Worker #ifdef SYS_timer_gettime64
12*c9945492SAndroid Build Coastguard Worker 	int r = -ENOSYS;
13*c9945492SAndroid Build Coastguard Worker 	if (sizeof(time_t) > 4)
14*c9945492SAndroid Build Coastguard Worker 		r = __syscall(SYS_timer_gettime64, t, val);
15*c9945492SAndroid Build Coastguard Worker 	if (SYS_timer_gettime == SYS_timer_gettime64 || r!=-ENOSYS)
16*c9945492SAndroid Build Coastguard Worker 		return __syscall_ret(r);
17*c9945492SAndroid Build Coastguard Worker 	long val32[4];
18*c9945492SAndroid Build Coastguard Worker 	r = __syscall(SYS_timer_gettime, t, val32);
19*c9945492SAndroid Build Coastguard Worker 	if (!r) {
20*c9945492SAndroid Build Coastguard Worker 		val->it_interval.tv_sec = val32[0];
21*c9945492SAndroid Build Coastguard Worker 		val->it_interval.tv_nsec = val32[1];
22*c9945492SAndroid Build Coastguard Worker 		val->it_value.tv_sec = val32[2];
23*c9945492SAndroid Build Coastguard Worker 		val->it_value.tv_nsec = val32[3];
24*c9945492SAndroid Build Coastguard Worker 	}
25*c9945492SAndroid Build Coastguard Worker 	return __syscall_ret(r);
26*c9945492SAndroid Build Coastguard Worker #endif
27*c9945492SAndroid Build Coastguard Worker 	return syscall(SYS_timer_gettime, t, val);
28*c9945492SAndroid Build Coastguard Worker }
29