diff options
Diffstat (limited to 'libc/include/isc/heap.h')
| -rw-r--r-- | libc/include/isc/heap.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libc/include/isc/heap.h b/libc/include/isc/heap.h new file mode 100644 index 0000000..ea5a6e9 --- /dev/null +++ b/libc/include/isc/heap.h @@ -0,0 +1,49 @@ +/* $NetBSD: heap.h,v 1.1.1.1 2004/05/20 19:49:41 christos Exp $ */ + +/* + * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 1997,1999 by Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +typedef int (*heap_higher_priority_func)(void *, void *); +typedef void (*heap_index_func)(void *, int); +typedef void (*heap_for_each_func)(void *, void *); + +typedef struct heap_context { + int array_size; + int array_size_increment; + int heap_size; + void **heap; + heap_higher_priority_func higher_priority; + heap_index_func index; +} *heap_context; + +#define heap_new __heap_new +#define heap_free __heap_free +#define heap_insert __heap_insert +#define heap_delete __heap_delete +#define heap_increased __heap_increased +#define heap_decreased __heap_decreased +#define heap_element __heap_element +#define heap_for_each __heap_for_each + +heap_context heap_new(heap_higher_priority_func, heap_index_func, int); +int heap_free(heap_context); +int heap_insert(heap_context, void *); +int heap_delete(heap_context, int); +int heap_increased(heap_context, int); +int heap_decreased(heap_context, int); +void * heap_element(heap_context, int); +int heap_for_each(heap_context, heap_for_each_func, void *); |