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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
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 <sysdep-cancel.h>
#include <inline-syscall.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
DECLARE_INLINE_SYSCALL (int, sigtimedwait, const sigset_t *set,
siginfo_t *infop, const struct timespec *timeout);
int
__sigtimedwait_not_cancel (const sigset_t *set, siginfo_t *info,
const struct timespec *timeout)
{
if (set == NULL)
{
__set_errno(EINVAL);
return -1;
}
/* we don't want people waiting on SIGCANCEL */
sigset_t tmpset;
if (set != NULL && __builtin_expect (__sigismember(set, SIGCANCEL), 0))
{
memcpy (&tmpset, set, sizeof(sigset_t));
__sigdelset (&tmpset, SIGCANCEL);
set = &tmpset;
}
return INLINE_SYSCALL (sigtimedwait, 3, set, info, timeout);
}
int
__sigtimedwait (const sigset_t *set, siginfo_t *info,
const struct timespec *timeout)
{
if (SINGLE_THREAD_P)
return __sigtimedwait_not_cancel (set, info, timeout);
int oldtype = LIBC_CANCEL_ASYNC ();
int res = __sigtimedwait_not_cancel (set, info, timeout);
LIBC_CANCEL_RESET (oldtype);
return res;
}
libc_hidden_def (__sigtimedwait)
weak_alias (__sigtimedwait, sigtimedwait)
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