sys/sys/ucontext.h

   1 /*-
   2  * Copyright (c) 1999 Marcel Moolenaar
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer
  10  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * $FreeBSD: src/sys/sys/ucontext.h,v 1.4 1999/10/11 20:33:17 luoqi Exp $
  29  * $DragonFly: src/sys/sys/ucontext.h,v 1.2 2003/06/17 04:28:59 dillon Exp $
  30  */
  31
  32 #ifndef _SYS_UCONTEXT_H_
  33 #define _SYS_UCONTEXT_H_
  34
  35 #include <machine/ucontext.h>
  36
  37 typedef struct __ucontext {
  38         /*
  39          * Keep the order of the first two fields. Also,
  40          * keep them the first two fields in the structure.
  41          * This way we can have a union with struct
  42          * sigcontext and ucontext_t. This allows us to
  43          * support them both at the same time.
  44          * note: the union is not defined, though.
  45          */
  46         sigset_t        uc_sigmask;
  47         mcontext_t      uc_mcontext;
  48
  49         struct __ucontext *uc_link;
  50         stack_t         uc_stack;
  51         int             __spare__[8];
  52 } ucontext_t;
  53
  54 #endif /* !_SYS_UCONTEXT_H_ */