1 #include <sys/time.h>
2 #include <errno.h>
3 #include "syscall.h"
4
5 #define IS32BIT(x) !((x)+0x80000000ULL>>32)
6
setitimer(int which,const struct itimerval * restrict new,struct itimerval * restrict old)7 int setitimer(int which, const struct itimerval *restrict new, struct itimerval *restrict old)
8 {
9 #ifndef __LITEOS_A__
10 if (sizeof(time_t) > sizeof(long)) {
11 time_t is = new->it_interval.tv_sec, vs = new->it_value.tv_sec;
12 long ius = new->it_interval.tv_usec, vus = new->it_value.tv_usec;
13 if (!IS32BIT(is) || !IS32BIT(vs))
14 return __syscall_ret(-ENOTSUP);
15 long old32[4];
16 int r = __syscall(SYS_setitimer, which,
17 ((long[]){is, ius, vs, vus}), old32);
18 if (!r && old) {
19 old->it_interval.tv_sec = old32[0];
20 old->it_interval.tv_usec = old32[1];
21 old->it_value.tv_sec = old32[2];
22 old->it_value.tv_usec = old32[3];
23 }
24 return __syscall_ret(r);
25 }
26 #endif
27 return syscall(SYS_setitimer, which, new, old);
28 }
29