1/*
2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (c) 1997,1999 by Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18typedef int (*heap_higher_priority_func)(void *, void *);
19typedef void (*heap_index_func)(void *, int);
20typedef void (*heap_for_each_func)(void *, void *);
21
22typedef struct heap_context {
23	int array_size;
24	int array_size_increment;
25	int heap_size;
26	void **heap;
27	heap_higher_priority_func higher_priority;
28	heap_index_func index;
29} *heap_context;
30
31#define heap_new	__heap_new
32#define heap_free	__heap_free
33#define heap_insert	__heap_insert
34#define heap_delete	__heap_delete
35#define heap_increased	__heap_increased
36#define heap_decreased	__heap_decreased
37#define heap_element	__heap_element
38#define heap_for_each	__heap_for_each
39
40heap_context	heap_new(heap_higher_priority_func, heap_index_func, int);
41int		heap_free(heap_context);
42int		heap_insert(heap_context, void *);
43int		heap_delete(heap_context, int);
44int		heap_increased(heap_context, int);
45int		heap_decreased(heap_context, int);
46void *		heap_element(heap_context, int);
47int		heap_for_each(heap_context, heap_for_each_func, void *);
48
49/*! \file */
50