1 /* crypto/lhash/lhash.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
59 /* Header for dynamic hash table routines
63 #ifndef HEADER_LHASH_H
64 #define HEADER_LHASH_H
74 typedef struct lhash_node_st
77 struct lhash_node_st *next;
83 typedef struct lhash_st
87 unsigned long (*hash)();
88 unsigned int num_nodes;
89 unsigned int num_alloc_nodes;
92 unsigned long up_load; /* load times 256 */
93 unsigned long down_load; /* load times 256 */
94 unsigned long num_items;
96 unsigned long num_expands;
97 unsigned long num_expand_reallocs;
98 unsigned long num_contracts;
99 unsigned long num_contract_reallocs;
100 unsigned long num_hash_calls;
101 unsigned long num_comp_calls;
102 unsigned long num_insert;
103 unsigned long num_replace;
104 unsigned long num_delete;
105 unsigned long num_no_delete;
106 unsigned long num_retrieve;
107 unsigned long num_retrieve_miss;
108 unsigned long num_hash_comps;
113 #define LH_LOAD_MULT 256
115 /* Indicates a malloc() error in the last call, this is only bad
117 #define lh_error(lh) ((lh)->error)
119 LHASH *lh_new(unsigned long (*h)(/* void *a */), int (*c)(/* void *a,void *b */));
120 void lh_free(LHASH *lh);
121 void *lh_insert(LHASH *lh, void *data);
122 void *lh_delete(LHASH *lh, void *data);
123 void *lh_retrieve(LHASH *lh, void *data);
124 void lh_doall(LHASH *lh, void (*func)(/*void *b*/));
125 void lh_doall_arg(LHASH *lh, void (*func)(/*void *a,void *b*/),void *arg);
126 unsigned long lh_strhash(const char *c);
127 unsigned long lh_num_items(LHASH *lh);
130 void lh_stats(LHASH *lh, FILE *out);
131 void lh_node_stats(LHASH *lh, FILE *out);
132 void lh_node_usage_stats(LHASH *lh, FILE *out);
136 void lh_stats_bio(LHASH *lh, BIO *out);
137 void lh_node_stats_bio(LHASH *lh, BIO *out);
138 void lh_node_usage_stats_bio(LHASH *lh, BIO *out);