65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
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/* $NetBSD: prop_stack.h,v 1.2 2007/08/30 12:23:54 joerg Exp $ */
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/*-
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* Copyright (c) 2007 Joerg Sonnenberger <joerg@NetBSD.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _PROP_STACK_H
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#define _PROP_STACK_H
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#include <sys/queue.h>
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#include <prop/prop_object.h>
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struct _prop_stack_intern_elem {
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prop_object_t object;
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void *object_data[3];
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};
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struct _prop_stack_extern_elem {
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SLIST_ENTRY(_prop_stack_extern_elem) stack_link;
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prop_object_t object;
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void *object_data[3];
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};
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#define PROP_STACK_INTERN_ELEMS 16
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struct _prop_stack {
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struct _prop_stack_intern_elem intern_elems[PROP_STACK_INTERN_ELEMS];
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size_t used_intern_elems;
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SLIST_HEAD(, _prop_stack_extern_elem) extern_elems;
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};
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typedef struct _prop_stack *prop_stack_t;
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void _prop_stack_init(prop_stack_t);
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bool _prop_stack_push(prop_stack_t, prop_object_t, void *, void *, void *);
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bool _prop_stack_pop(prop_stack_t, prop_object_t *, void **, void **, void **);
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#endif
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