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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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #include <errno.h>
- #include <signal.h>
- #define __need_NULL
- #include <stddef.h>
- #include <sysdep-cancel.h>
- #include <sys/syscall.h>
- #include <bp-checks.h>
- #include <bits/libc-lock.h>
- extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
- const struct timespec *__unbounded, 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, CHECK_SIGSET (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, CHECK_SIGSET (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 (set, sig)
- 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
- }
- libc_hidden_def (__sigwait)
- weak_alias (__sigwait, sigwait)
- strong_alias (__sigwait, __libc_sigwait)
- /* Cancellation is handled in __pthread_sigwait. */
- LIBC_CANCEL_HANDLED ();
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