|  | /* Signal handling function for threaded programs.  Generic version. | 
|  | Copyright (C) 2000-2016 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/>.  */ | 
|  |  | 
|  | #ifndef _BITS_SIGTHREAD_H | 
|  | #define _BITS_SIGTHREAD_H	1 | 
|  |  | 
|  | #if !defined _SIGNAL_H && !defined _PTHREAD_H | 
|  | # error "Never include this file directly.  Use <pthread.h> instead" | 
|  | #endif | 
|  |  | 
|  | /* Modify the signal mask for the calling thread.  The arguments have the | 
|  | same meaning as for sigprocmask; in fact, this and sigprocmask might be | 
|  | the same function.  We declare this the same on all platforms, since it | 
|  | doesn't use any thread-related types.  */ | 
|  | extern int pthread_sigmask (int __how, const __sigset_t *__newmask, | 
|  | __sigset_t *__oldmask) __THROW; | 
|  |  | 
|  |  | 
|  | #endif	/* bits/sigthread.h */ |