- if (priv) priv = 128; priv=0;
- return syscall4(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
+ if (clock_gettime(clk, &to)) return EINVAL;
+ to.tv_sec = at->tv_sec - to.tv_sec;
+ if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) {
+ to.tv_sec--;
+ to.tv_nsec += 1000000000;
+ }
+ if (to.tv_sec < 0) return ETIMEDOUT;
+ top = &to;
+notimeout:
+ if (cp) r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT, val, top);
+ else r = -__syscall(SYS_futex, addr, FUTEX_WAIT, val, top);
+done:
+ if (r == EINTR || r == EINVAL || r == ETIMEDOUT) return r;
+ return 0;
+}
+
+int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, void (*cleanup)(void *), void *arg, int priv)
+{
+ int r;
+ if (cleanup) {
+ pthread_cleanup_push(cleanup, arg);
+ r = do_wait(addr, val, clk, at, 1, priv);
+ pthread_cleanup_pop(0);
+ } else {
+ r = do_wait(addr, val, clk, at, 0, priv);
+ }
+ return r;