xref: /illumos-gate/usr/src/lib/libresolv2/include/isc/heap.h (revision 355b4669e025ff377602b6fc7caaf30dbc218371)
1 
2 /*
3  * Copyright (c) 1997, by Sun Microsystems, Inc.
4  * All rights reserved.
5  */
6 
7 /*
8  * Copyright (c) 1997 by Internet Software Consortium.
9  *
10  * Permission to use, copy, modify, and distribute this software for any
11  * purpose with or without fee is hereby granted, provided that the above
12  * copyright notice and this permission notice appear in all copies.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
15  * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
17  * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
18  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
19  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
20  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
21  * SOFTWARE.
22  */
23 #pragma ident	"%Z%%M%	%I%	%E% SMI"
24 
25 typedef int (*heap_higher_priority_func)(void *, void *);
26 typedef void (*heap_index_func)(void *, int);
27 typedef void (*heap_for_each_func)(void *, void *);
28 
29 typedef struct heap_context {
30 	int array_size;
31 	int array_size_increment;
32 	int heap_size;
33 	void **heap;
34 	heap_higher_priority_func higher_priority;
35 	heap_index_func index;
36 } *heap_context;
37 
38 #define heap_new	__heap_new
39 #define heap_free	__heap_free
40 #define heap_insert	__heap_insert
41 #define heap_delete	__heap_delete
42 #define heap_increased	__heap_increased
43 #define heap_decreased	__heap_decreased
44 #define heap_element	__heap_element
45 #define heap_for_each	__heap_for_each
46 
47 heap_context	heap_new(heap_higher_priority_func, heap_index_func, int);
48 int		heap_free(heap_context);
49 int		heap_insert(heap_context, void *);
50 int		heap_delete(heap_context, int);
51 int		heap_increased(heap_context, int);
52 int		heap_decreased(heap_context, int);
53 void *		heap_element(heap_context, int);
54 int		heap_for_each(heap_context, heap_for_each_func, void *);
55