mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/* Copyright (C) 1991-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <stddef.h>
|
|
#include <unistd.h>
|
|
|
|
|
|
/* Change the set of blocked signals to SET,
|
|
wait until a signal arrives, and restore the set of blocked signals. */
|
|
int
|
|
__sigsuspend (const sigset_t *set)
|
|
{
|
|
sigset_t oset;
|
|
int save;
|
|
|
|
if (set == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (sigprocmask (SIG_SETMASK, set, &oset) < 0)
|
|
return -1;
|
|
|
|
(void) pause();
|
|
save = errno;
|
|
|
|
if (sigprocmask (SIG_SETMASK, &oset, (sigset_t *) NULL) < 0)
|
|
return -1;
|
|
|
|
__set_errno (save);
|
|
return -1;
|
|
}
|
|
libc_hidden_def (__sigsuspend)
|
|
weak_alias (__sigsuspend, sigsuspend)
|