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