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146 lines
5.1 KiB
C
146 lines
5.1 KiB
C
/* crypto/lhash/lhash.h */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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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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* 1. Redistributions of source code must retain the 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 the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT 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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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* Header for dynamic hash table routines
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* Author - Eric Young
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*/
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#ifndef HEADER_LHASH_H
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#define HEADER_LHASH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef NO_FP_API
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#include <stdio.h>
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#endif
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typedef struct lhash_node_st
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{
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void *data;
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struct lhash_node_st *next;
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#ifndef NO_HASH_COMP
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unsigned long hash;
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#endif
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} LHASH_NODE;
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typedef struct lhash_st
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{
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LHASH_NODE **b;
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int (*comp)();
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unsigned long (*hash)();
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unsigned int num_nodes;
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unsigned int num_alloc_nodes;
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unsigned int p;
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unsigned int pmax;
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unsigned long up_load; /* load times 256 */
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unsigned long down_load; /* load times 256 */
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unsigned long num_items;
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unsigned long num_expands;
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unsigned long num_expand_reallocs;
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unsigned long num_contracts;
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unsigned long num_contract_reallocs;
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unsigned long num_hash_calls;
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unsigned long num_comp_calls;
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unsigned long num_insert;
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unsigned long num_replace;
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unsigned long num_delete;
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unsigned long num_no_delete;
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unsigned long num_retrieve;
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unsigned long num_retrieve_miss;
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unsigned long num_hash_comps;
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int error;
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} LHASH;
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#define LH_LOAD_MULT 256
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/* Indicates a malloc() error in the last call, this is only bad
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* in lh_insert(). */
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#define lh_error(lh) ((lh)->error)
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LHASH *lh_new(unsigned long (*h)(/* void *a */), int (*c)(/* void *a,void *b */));
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void lh_free(LHASH *lh);
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void *lh_insert(LHASH *lh, void *data);
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void *lh_delete(LHASH *lh, void *data);
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void *lh_retrieve(LHASH *lh, void *data);
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void lh_doall(LHASH *lh, void (*func)(/*void *b*/));
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void lh_doall_arg(LHASH *lh, void (*func)(/*void *a,void *b*/),void *arg);
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unsigned long lh_strhash(const char *c);
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unsigned long lh_num_items(LHASH *lh);
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#ifndef NO_FP_API
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void lh_stats(LHASH *lh, FILE *out);
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void lh_node_stats(LHASH *lh, FILE *out);
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void lh_node_usage_stats(LHASH *lh, FILE *out);
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#endif
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#ifdef HEADER_BIO_H
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void lh_stats_bio(LHASH *lh, BIO *out);
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void lh_node_stats_bio(LHASH *lh, BIO *out);
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void lh_node_usage_stats_bio(LHASH *lh, BIO *out);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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