1/*
2 * Copyright (c) 1993-1995, 1999-2008 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/*
29 * Declarations for generic call outs.
30 */
31
32#ifndef _KERN_CALL_ENTRY_H_
33#define _KERN_CALL_ENTRY_H_
34
35#ifdef MACH_KERNEL_PRIVATE
36#include <kern/queue.h>
37
38typedef void			*call_entry_param_t;
39typedef void			(*call_entry_func_t)(
40								call_entry_param_t		param0,
41								call_entry_param_t		param1);
42
43typedef struct call_entry {
44    queue_chain_t		q_link;
45	queue_t				queue;
46    call_entry_func_t	func;
47    call_entry_param_t	param0;
48    call_entry_param_t	param1;
49    uint64_t			deadline;
50} call_entry_data_t;
51
52typedef struct call_entry		*call_entry_t;
53
54extern queue_t		call_entry_enqueue_deadline(
55							call_entry_t		entry,
56							queue_t				queue,
57							uint64_t			deadline);
58
59extern queue_t		call_entry_enqueue_tail(
60							call_entry_t	entry,
61							queue_t			queue);
62
63extern queue_t		call_entry_dequeue(
64							call_entry_t	entry);
65
66#define	call_entry_setup(entry, pfun, p0)				\
67MACRO_BEGIN												\
68	(entry)->func		= (call_entry_func_t)(pfun);	\
69	(entry)->param0		= (call_entry_param_t)(p0);		\
70	(entry)->queue		= NULL;							\
71MACRO_END
72
73#endif /* MACH_KERNEL_PRIVATE */
74
75#endif /* _KERN_CALL_ENTRY_H_ */
76