1 /* Signal handling function for threaded programs. Generic version. 2 Copyright (C) 2000-2021 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 7 License as published by the Free Software Foundation; either 8 version 2.1 of the 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; if not, see 17 <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 /* Modify the signal mask for the calling thread. The arguments have the 27 same meaning as for sigprocmask; in fact, this and sigprocmask might be 28 the same function. We declare this the same on all platforms, since it 29 doesn't use any thread-related types. */ 30 extern int pthread_sigmask (int __how, const __sigset_t *__newmask, 31 __sigset_t *__oldmask) __THROW; 32 33 34 #endif /* bits/sigthread.h */ 35