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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 <signal.h>
#include <errno.h>
int
__sigwait (const sigset_t *set, int *sig)
{
/* sigwait returns the errno directly and doesn't touch the
global errno value so we need to be careful */
int save_errno = errno;
if (set == NULL || sig == NULL)
return EINVAL;
/* sigtimedwait is cancelable so don't implement cancellation here;
we also don't check for SIGCANCEL since we do that in sigtimedwait */
int result = sigtimedwait (set, NULL, NULL);
if (result == -1)
{
result = errno;
__set_errno (save_errno);
}
else
{
*sig = result;
}
return 0;
}
libc_hidden_def (__sigwait)
weak_alias (__sigwait, sigwait)
LIBC_CANCEL_HANDLED (); /* handled by sigtimedwait */
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