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/* Copyright (C) 1997-2013 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 <string.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <fbtl/pthreadP.h>
static int
do_sigwaitinfo (const sigset_t *set, siginfo_t *info)
{
#ifdef SIGCANCEL
sigset_t tmpset;
if (set != NULL
&& (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
# ifdef SIGSETXID
|| __builtin_expect (__sigismember (set, SIGSETXID), 0)
# endif
))
{
/* Create a temporary mask without the bit for SIGCANCEL set. */
tmpset = *set;
__sigdelset (&tmpset, SIGCANCEL);
# ifdef SIGSETXID
__sigdelset (&tmpset, SIGSETXID);
# endif
set = &tmpset;
}
#endif
return INLINE_SYSCALL (sigwaitinfo, 2, set, info);
}
/* Return any pending signal or wait for one for the given time. */
int
__sigwaitinfo (const sigset_t *set, siginfo_t *info)
{
if (SINGLE_THREAD_P)
return do_sigwaitinfo (set, info);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = do_sigwaitinfo (set, info);
LIBC_CANCEL_RESET (oldtype);
return result;
}
libc_hidden_def (__sigwaitinfo)
weak_alias (__sigwaitinfo, sigwaitinfo)
strong_alias (__sigwaitinfo, __libc_sigwaitinfo)
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