The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/sigevent-consts.h


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

     1	/* sigevent constants.  Linux version.
     2	   Copyright (C) 1997-2024 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
     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_SIGEVENT_CONSTS_H
    20	#define _BITS_SIGEVENT_CONSTS_H 1
    21	
    22	#if !defined _SIGNAL_H && !defined _AIO_H
    23	#error "Don't include <bits/sigevent-consts.h> directly; use <signal.h> instead."
    24	#endif
    25	
    26	/* `sigev_notify' values.  */
    27	enum
    28	{
    29	  SIGEV_SIGNAL = 0,		/* Notify via signal.  */
    30	# define SIGEV_SIGNAL	SIGEV_SIGNAL
    31	  SIGEV_NONE,			/* Other notification: meaningless.  */
    32	# define SIGEV_NONE	SIGEV_NONE
    33	  SIGEV_THREAD,			/* Deliver via thread creation.  */
    34	# define SIGEV_THREAD	SIGEV_THREAD
    35	
    36	  SIGEV_THREAD_ID = 4		/* Send signal to specific thread.
    37					   This is a Linux extension.  */
    38	#define SIGEV_THREAD_ID	SIGEV_THREAD_ID
    39	};
    40	
    41	#endif