xnu-344.tar.gz

[apple/xnu.git] / bsd / sys / ucontext.h

/*
 * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef _SYS_UCONTEXT_H_
#define _SYS_UCONTEXT_H_

#include <machine/ucontext.h>

struct ucontext {
	int		uc_onstack;
	sigset_t	uc_sigmask;	/* signal mask used by this context */
	stack_t 	uc_stack;	/* stack used by this context */
	struct ucontext	*uc_link;	/* pointer to resuming context */
	size_t		uc_mcsize;	/* size of the machine context passed in */
	mcontext_t	uc_mcontext;	/* machine specific context */
};

typedef struct ucontext ucontext_t;

#endif /* _SYS_UCONTEXT_H_ */