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/* Copyright (C) 1991,92,94-98,2000,2002,2003,2004
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 <signal.h>
#define __need_NULL
#include <stddef.h>
#include <cancel.h>
#include "sigset-cvt-mask.h"
/* Set the mask of blocked signals to MASK,
wait for a signal to arrive, and then restore the mask. */
static int __sigpause (int sig_or_mask, int is_sig)
{
sigset_t set;
if (is_sig)
{
/* The modern X/Open implementation is requested. */
sigprocmask (SIG_BLOCK, NULL, &set);
/* Bound-check sig_or_mask, remove it from the set. */
if (sigdelset (&set, sig_or_mask) < 0)
return -1;
}
else
sigset_set_old_mask (&set, sig_or_mask);
/* Note the sigpause() is a cancellation point. But since we call
sigsuspend() which itself is a cancellation point we do not have
to do anything here. */
/* uClibc note: not true on uClibc, we call the non-cancellable version */
return __NC(sigsuspend)(&set);
}
int __bsd_sigpause(int mask);
int __bsd_sigpause(int mask)
{
return __sigpause(mask, 0);
}
/* We have to provide a default version of this function since the
standards demand it. The version which is a bit more reasonable is
the BSD version. So make this the default. */
static int __NC(sigpause)(int sig)
{
return __sigpause(sig, 1);
}
CANCELLABLE_SYSCALL(int, sigpause, (int sig), (sig))
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