1/*
2 * Copyright (c) 2008 Apple Inc.  All rights reserved.
3 *
4 * @APPLE_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. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24#ifndef __SI_DATA_H__
25#define __SI_DATA_H__
26
27#include <stdint.h>
28
29typedef struct
30{
31	void *src;
32	uint32_t type;
33	int32_t refcount;
34	uint64_t validation_a;
35	uint64_t validation_b;
36} si_item_t;
37
38typedef struct
39{
40	int32_t refcount;
41	uint32_t count;
42	uint32_t curr;
43	si_item_t **entry;
44} si_list_t;
45
46/* list construction - these do not retain items */
47si_list_t *si_list_add(si_list_t *l, si_item_t *e);
48si_list_t *si_list_concat(si_list_t *l, si_list_t *x);
49
50si_list_t *si_list_retain(si_list_t *l);
51void si_list_release(si_list_t *l);
52
53si_item_t *si_list_next(si_list_t *list);
54void si_list_reset(si_list_t *list);
55
56si_item_t *si_item_retain(si_item_t *item);
57void si_item_release(si_item_t *item);
58
59#endif /* ! __SI_DATA_H__ */
60