1/* Signal handling function for threaded programs.
 2   Copyright (C) 1998-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public License as
 7   published by the Free Software Foundation; either version 2.1 of the
 8   License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; see the file COPYING.LIB.  If
17   not, see <https://www.gnu.org/licenses/>.  */
18
19#ifndef _BITS_SIGTHREAD_H
20#define _BITS_SIGTHREAD_H	1
21
22#if !defined _SIGNAL_H && !defined _PTHREAD_H
23# error "Never include this file directly.  Use <signal.h> instead"
24#endif
25
26/* Functions for handling signals. */
27#include <bits/types/__sigset_t.h>
28
29/* Modify the signal mask for the calling thread.  The arguments have
30   the same meaning as for sigprocmask(2). */
31extern int pthread_sigmask (int __how,
32			    const __sigset_t *__restrict __newmask,
33			    __sigset_t *__restrict __oldmask)__THROW;
34
35/* Send signal SIGNO to the given thread. */
36extern int pthread_kill (pthread_t __threadid, int __signo) __THROW;
37
38#ifdef __USE_GNU
39/* Queue signal and data to a thread.  */
40extern int pthread_sigqueue (pthread_t __threadid, int __signo,
41			     const union sigval __value) __THROW;
42#endif
43
44#endif	/* bits/sigthread.h */