bsd/sys/_types/_ucontext.h

   1 /*
   2  * Copyright (c) 2003-2012 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 #ifndef _STRUCT_UCONTEXT
  29 #if __DARWIN_UNIX03
  30 #define _STRUCT_UCONTEXT        struct __darwin_ucontext
  31 #else /* !__DARWIN_UNIX03 */
  32 #define _STRUCT_UCONTEXT        struct ucontext
  33 #endif /* __DARWIN_UNIX03 */
  34 _STRUCT_UCONTEXT
  35 {
  36         int                     uc_onstack;
  37         __darwin_sigset_t       uc_sigmask;     /* signal mask used by this context */
  38         _STRUCT_SIGALTSTACK     uc_stack;       /* stack used by this context */
  39         _STRUCT_UCONTEXT        *uc_link;       /* pointer to resuming context */
  40         __darwin_size_t         uc_mcsize;      /* size of the machine context passed in */
  41         _STRUCT_MCONTEXT        *uc_mcontext;   /* pointer to machine specific context */
  42 #ifdef _XOPEN_SOURCE
  43         _STRUCT_MCONTEXT        __mcontext_data;
  44 #endif /* _XOPEN_SOURCE */
  45 };
  46
  47 /* user context */
  48 typedef _STRUCT_UCONTEXT        ucontext_t;     /* [???] user context */
  49
  50 #endif /* _STRUCT_UCONTEXT */