| author | Rich Felker <dalias@aerifal.cx> | 2019年07月29日 20:57:05 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019年07月29日 20:57:05 -0400 |
| commit | 558c01338b0b635632e70af6ec8a484ca70b0328 (patch) | |
| tree | 1be25aedf065a1d1862cc6f351f9a3ddb88d3916 /src/signal/setitimer.c | |
| parent | b74b3eb4a280c7179971a98df94af6f28942a2ad (diff) | |
| download | musl-558c01338b0b635632e70af6ec8a484ca70b0328.tar.gz | |
| -rw-r--r-- | src/signal/setitimer.c | 19 |
diff --git a/src/signal/setitimer.c b/src/signal/setitimer.c index 21b1f45d..0dfbeb4d 100644 --- a/src/signal/setitimer.c +++ b/src/signal/setitimer.c @@ -1,7 +1,26 @@ #include <sys/time.h> +#include <errno.h> #include "syscall.h" +#define IS32BIT(x) !((x)+0x80000000ULL>>32) + int setitimer(int which, const struct itimerval *restrict new, struct itimerval *restrict old) { + if (sizeof(time_t) > sizeof(long)) { + time_t is = new->it_interval.tv_sec, vs = new->it_value.tv_sec; + long ius = new->it_interval.tv_usec, vus = new->it_value.tv_usec; + if (!IS32BIT(is) || !IS32BIT(vs)) + return __syscall_ret(-ENOTSUP); + long old32[4]; + int r = __syscall(SYS_setitimer, which, + ((long[]){is, ius, vs, vus}), old32); + if (!r && old) { + old->it_interval.tv_sec = old32[0]; + old->it_interval.tv_usec = old32[1]; + old->it_value.tv_sec = old32[2]; + old->it_value.tv_usec = old32[3]; + } + return __syscall_ret(r); + } return syscall(SYS_setitimer, which, new, old); } |