1 | /* $NetBSD: prop_stack.h,v 1.2 2007/08/30 12:23:54 joerg Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2007 Joerg Sonnenberger <joerg@NetBSD.org>. |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in |
15 | * the documentation and/or other materials provided with the |
16 | * distribution. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
22 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, |
24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | */ |
31 | |
32 | #ifndef _PROP_STACK_H |
33 | #define _PROP_STACK_H |
34 | |
35 | #include <sys/queue.h> |
36 | |
37 | #include <prop/prop_object.h> |
38 | |
39 | struct _prop_stack_intern_elem { |
40 | prop_object_t object; |
41 | void *object_data[3]; |
42 | }; |
43 | |
44 | struct _prop_stack_extern_elem { |
45 | SLIST_ENTRY(_prop_stack_extern_elem) stack_link; |
46 | prop_object_t object; |
47 | void *object_data[3]; |
48 | }; |
49 | |
50 | #define PROP_STACK_INTERN_ELEMS 16 |
51 | |
52 | struct _prop_stack { |
53 | struct _prop_stack_intern_elem intern_elems[PROP_STACK_INTERN_ELEMS]; |
54 | size_t used_intern_elems; |
55 | SLIST_HEAD(, _prop_stack_extern_elem) extern_elems; |
56 | }; |
57 | |
58 | typedef struct _prop_stack *prop_stack_t; |
59 | |
60 | void _prop_stack_init(prop_stack_t); |
61 | bool _prop_stack_push(prop_stack_t, prop_object_t, void *, void *, void *); |
62 | bool _prop_stack_pop(prop_stack_t, prop_object_t *, void **, void **, void **); |
63 | |
64 | #endif |
65 | |