/*
 * Copyright (c) 1993-1995, 1999-2000 Apple Computer, Inc.
 * All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Private declarations for thread-based callouts.
 *
 * HISTORY
 *
 * 10 July 1999 (debo)
 *  Pulled into Mac OS X (microkernel).
 *
 * 3 July 1993 (debo)
 *	Created.
 */

#ifndef _KERN_CALL_ENTRY_H_
#define _KERN_CALL_ENTRY_H_

#ifdef MACH_KERNEL_PRIVATE
#include <kern/queue.h>

typedef void			*call_entry_param_t;
typedef void			(*call_entry_func_t)(
								call_entry_param_t		param0,
								call_entry_param_t		param1);

typedef struct call_entry {
    queue_chain_t		q_link;
    call_entry_func_t	func;
    call_entry_param_t	param0;
    call_entry_param_t	param1;
    uint64_t			deadline;
    enum {
	  IDLE,
	  PENDING,
	  DELAYED }			state;
} call_entry_data_t;

#define	call_entry_setup(entry, pfun, p0)				\
MACRO_BEGIN												\
	(entry)->func		= (call_entry_func_t)(pfun);	\
	(entry)->param0		= (call_entry_param_t)(p0);		\
	(entry)->state		= IDLE;							\
MACRO_END

#endif /* MACH_KERNEL_PRIVATE */

#endif /* _KERN_CALL_ENTRY_H_ */
