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/* Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <signal.h>
#define __need_NULL
#include <stddef.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <bits/libc-lock.h>
extern int __syscall_rt_sigtimedwait (const sigset_t *, siginfo_t *,
const struct timespec *, size_t);
/* Return any pending signal or wait for one for the given time. */
static __inline__ int
do_sigwait (const sigset_t *set, int *sig)
{
int ret;
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
#ifdef INTERNAL_SYSCALL
INTERNAL_SYSCALL_DECL (err);
ret = INTERNAL_SYSCALL (rt_sigtimedwait, err, 4, set,
NULL, NULL, _NSIG / 8);
if (! INTERNAL_SYSCALL_ERROR_P (ret, err))
{
*sig = ret;
ret = 0;
}
else
ret = INTERNAL_SYSCALL_ERRNO (ret, err);
#else
ret = INLINE_SYSCALL (rt_sigtimedwait, 4, set,
NULL, NULL, _NSIG / 8);
if (ret != -1)
{
*sig = ret;
ret = 0;
}
else
ret = errno;
#endif
return ret;
}
#ifndef SHARED
weak_extern (__pthread_sigwait)
#endif
int
sigwait (const sigset_t *set, int *sig)
{
#ifndef NOT_IN_libc
return __libc_maybe_call2 (pthread_sigwait, (set, sig),
do_sigwait (set, sig));
#else
return do_sigwait (set, sig);
#endif
}
strong_alias(sigwait, __libc_sigwait)
/* Cancellation is handled in __pthread_sigwait. */
LIBC_CANCEL_HANDLED ();
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