sysdeps/unix/sysv/linux/bits/sigevent-consts.h

   1 /* sigevent constants.  Linux version.
   2    Copyright (C) 1997-2019 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