| | 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 <libprop/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 |
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