The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/sigthread.h


$ cat -n /usr/include/x86_64-linux-gnu/bits/sigthread.h

     1	/* Signal handling function for threaded programs.
     2	   Copyright (C) 1998-2024 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). */
    31	extern 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. */
    36	extern int pthread_kill (pthread_t __threadid, int __signo) __THROW;
    37	
    38	#ifdef __USE_GNU
    39	/* Queue signal and data to a thread.  */
    40	extern int pthread_sigqueue (pthread_t __threadid, int __signo,
    41				     const union sigval __value) __THROW;
    42	#endif
    43	
    44	#endif	/* bits/sigthread.h */