+#include <pthread.h>
#include <time.h>
#include <errno.h>
#include "futex.h"
-#define SYSCALL_RETURN_ERRNO
#include "syscall.h"
-#include <stdio.h>
-int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv)
+
+int __pthread_setcancelstate(int, int *);
+int __clock_gettime(clockid_t, struct timespec *);
+
+int __timedwait(volatile int *addr, int val,
+ clockid_t clk, const struct timespec *at,
+ void (*cleanup)(void *), void *arg, int priv)
{
- int r;
- struct timespec to;
+ int r, cs;
+ struct timespec to, *top=0;
+
+ if (priv) priv = 128;
+
if (at) {
- clock_gettime(clk, &to);
+ if (at->tv_nsec >= 1000000000UL) return EINVAL;
+ 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;
}
- if (priv) priv = 128; priv=0;
- r = syscall4(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
- if (r == ETIMEDOUT) return r;
- return 0;
+
+ if (!cleanup) __pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+ pthread_cleanup_push(cleanup, arg);
+
+ r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT|priv, val, top);
+ if (r == ENOSYS) r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT, val, top);
+ if (r != EINTR && r != ETIMEDOUT) r = 0;
+
+ pthread_cleanup_pop(0);
+ if (!cleanup) __pthread_setcancelstate(cs, 0);
+
+ return r;
}