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/* Signal handling function for threaded programs. Generic version.
Copyright (C) 2000-2020 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/>. */
#ifndef _BITS_SIGTHREAD_H
#define _BITS_SIGTHREAD_H 1
#if !defined _SIGNAL_H && !defined _PTHREAD_H
# error "Never include this file directly. Use <signal.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 */
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