sys/compat/linux/common/linux_sigevent.h

   1 /*-
   2  * Copyright (c) 2005 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to The NetBSD Foundation
   6  * by Frank van der Linden.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  * POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifndef _LINUX_SIGEVENT_H
  31 #define _LINUX_SIGEVENT_H
  32
  33 #define LINUX_SIGEV_SIGNAL    0       /* notify via signal */
  34 #define LINUX_SIGEV_NONE      1       /* other notification: meaningless */
  35 #define LINUX_SIGEV_THREAD    2       /* deliver via thread creation */
  36 #define LINUX_SIGEV_THREAD_ID 4       /* deliver to thread */
  37
  38 #define LINUX_SIGEV_MAX  64
  39 #ifndef LINUX_SIGEV_PAD
  40 #define LINUX_SIGEV_PAD  ((LINUX_SIGEV_MAX/sizeof(int)) - 3)
  41 #endif
  42
  43 typedef struct linux_sigevent {
  44         sigval_t sigev_value;
  45         int sigev_signo;
  46         int sigev_notify;
  47         union {
  48                 int pad[LINUX_SIGEV_PAD];
  49                 int tid;
  50                 struct {
  51                         void (*func)(sigval_t);
  52                         void *attr;
  53                 } _sigev_thread;
  54         } _sigev_un;
  55 } linux_sigevent_t;
  56
  57 #endif /* _LINUX_SIGEVENT_H */