LTKCPP-- LLRP Toolkit C Plus Plus Library
|
00001 /* crypto/lhash/lhash.h */ 00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 00003 * All rights reserved. 00004 * 00005 * This package is an SSL implementation written 00006 * by Eric Young (eay@cryptsoft.com). 00007 * The implementation was written so as to conform with Netscapes SSL. 00008 * 00009 * This library is free for commercial and non-commercial use as long as 00010 * the following conditions are aheared to. The following conditions 00011 * apply to all code found in this distribution, be it the RC4, RSA, 00012 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 00013 * included with this distribution is covered by the same copyright terms 00014 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 00015 * 00016 * Copyright remains Eric Young's, and as such any Copyright notices in 00017 * the code are not to be removed. 00018 * If this package is used in a product, Eric Young should be given attribution 00019 * as the author of the parts of the library used. 00020 * This can be in the form of a textual message at program startup or 00021 * in documentation (online or textual) provided with the package. 00022 * 00023 * Redistribution and use in source and binary forms, with or without 00024 * modification, are permitted provided that the following conditions 00025 * are met: 00026 * 1. Redistributions of source code must retain the copyright 00027 * notice, this list of conditions and the following disclaimer. 00028 * 2. Redistributions in binary form must reproduce the above copyright 00029 * notice, this list of conditions and the following disclaimer in the 00030 * documentation and/or other materials provided with the distribution. 00031 * 3. All advertising materials mentioning features or use of this software 00032 * must display the following acknowledgement: 00033 * "This product includes cryptographic software written by 00034 * Eric Young (eay@cryptsoft.com)" 00035 * The word 'cryptographic' can be left out if the rouines from the library 00036 * being used are not cryptographic related :-). 00037 * 4. If you include any Windows specific code (or a derivative thereof) from 00038 * the apps directory (application code) you must include an acknowledgement: 00039 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 00040 * 00041 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 00042 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00043 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00044 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 00045 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00046 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00047 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00048 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00049 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00050 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00051 * SUCH DAMAGE. 00052 * 00053 * The licence and distribution terms for any publically available version or 00054 * derivative of this code cannot be changed. i.e. this code cannot simply be 00055 * copied and put under another distribution licence 00056 * [including the GNU Public Licence.] 00057 */ 00058 00059 /* 00060 * Header for dynamic hash table routines Author - Eric Young 00061 */ 00062 00063 #ifndef HEADER_LHASH_H 00064 # define HEADER_LHASH_H 00065 00066 # include <openssl/e_os2.h> 00067 # ifndef OPENSSL_NO_FP_API 00068 # include <stdio.h> 00069 # endif 00070 00071 # ifndef OPENSSL_NO_BIO 00072 # include <openssl/bio.h> 00073 # endif 00074 00075 #ifdef __cplusplus 00076 extern "C" { 00077 #endif 00078 00079 typedef struct lhash_node_st { 00080 void *data; 00081 struct lhash_node_st *next; 00082 # ifndef OPENSSL_NO_HASH_COMP 00083 unsigned long hash; 00084 # endif 00085 } LHASH_NODE; 00086 00087 typedef int (*LHASH_COMP_FN_TYPE) (const void *, const void *); 00088 typedef unsigned long (*LHASH_HASH_FN_TYPE) (const void *); 00089 typedef void (*LHASH_DOALL_FN_TYPE) (void *); 00090 typedef void (*LHASH_DOALL_ARG_FN_TYPE) (void *, void *); 00091 00092 /* 00093 * Macros for declaring and implementing type-safe wrappers for LHASH 00094 * callbacks. This way, callbacks can be provided to LHASH structures without 00095 * function pointer casting and the macro-defined callbacks provide 00096 * per-variable casting before deferring to the underlying type-specific 00097 * callbacks. NB: It is possible to place a "static" in front of both the 00098 * DECLARE and IMPLEMENT macros if the functions are strictly internal. 00099 */ 00100 00101 /* First: "hash" functions */ 00102 # define DECLARE_LHASH_HASH_FN(name, o_type) \ 00103 unsigned long name##_LHASH_HASH(const void *); 00104 # define IMPLEMENT_LHASH_HASH_FN(name, o_type) \ 00105 unsigned long name##_LHASH_HASH(const void *arg) { \ 00106 const o_type *a = arg; \ 00107 return name##_hash(a); } 00108 # define LHASH_HASH_FN(name) name##_LHASH_HASH 00109 00110 /* Second: "compare" functions */ 00111 # define DECLARE_LHASH_COMP_FN(name, o_type) \ 00112 int name##_LHASH_COMP(const void *, const void *); 00113 # define IMPLEMENT_LHASH_COMP_FN(name, o_type) \ 00114 int name##_LHASH_COMP(const void *arg1, const void *arg2) { \ 00115 const o_type *a = arg1; \ 00116 const o_type *b = arg2; \ 00117 return name##_cmp(a,b); } 00118 # define LHASH_COMP_FN(name) name##_LHASH_COMP 00119 00120 /* Third: "doall" functions */ 00121 # define DECLARE_LHASH_DOALL_FN(name, o_type) \ 00122 void name##_LHASH_DOALL(void *); 00123 # define IMPLEMENT_LHASH_DOALL_FN(name, o_type) \ 00124 void name##_LHASH_DOALL(void *arg) { \ 00125 o_type *a = arg; \ 00126 name##_doall(a); } 00127 # define LHASH_DOALL_FN(name) name##_LHASH_DOALL 00128 00129 /* Fourth: "doall_arg" functions */ 00130 # define DECLARE_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ 00131 void name##_LHASH_DOALL_ARG(void *, void *); 00132 # define IMPLEMENT_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ 00133 void name##_LHASH_DOALL_ARG(void *arg1, void *arg2) { \ 00134 o_type *a = arg1; \ 00135 a_type *b = arg2; \ 00136 name##_doall_arg(a, b); } 00137 # define LHASH_DOALL_ARG_FN(name) name##_LHASH_DOALL_ARG 00138 00139 typedef struct lhash_st { 00140 LHASH_NODE **b; 00141 LHASH_COMP_FN_TYPE comp; 00142 LHASH_HASH_FN_TYPE hash; 00143 unsigned int num_nodes; 00144 unsigned int num_alloc_nodes; 00145 unsigned int p; 00146 unsigned int pmax; 00147 unsigned long up_load; /* load times 256 */ 00148 unsigned long down_load; /* load times 256 */ 00149 unsigned long num_items; 00150 unsigned long num_expands; 00151 unsigned long num_expand_reallocs; 00152 unsigned long num_contracts; 00153 unsigned long num_contract_reallocs; 00154 unsigned long num_hash_calls; 00155 unsigned long num_comp_calls; 00156 unsigned long num_insert; 00157 unsigned long num_replace; 00158 unsigned long num_delete; 00159 unsigned long num_no_delete; 00160 unsigned long num_retrieve; 00161 unsigned long num_retrieve_miss; 00162 unsigned long num_hash_comps; 00163 int error; 00164 } _LHASH; /* Do not use _LHASH directly, use LHASH_OF 00165 * and friends */ 00166 00167 # define LH_LOAD_MULT 256 00168 00169 /* 00170 * Indicates a malloc() error in the last call, this is only bad in 00171 * lh_insert(). 00172 */ 00173 # define lh_error(lh) ((lh)->error) 00174 00175 _LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c); 00176 void lh_free(_LHASH *lh); 00177 void *lh_insert(_LHASH *lh, void *data); 00178 void *lh_delete(_LHASH *lh, const void *data); 00179 void *lh_retrieve(_LHASH *lh, const void *data); 00180 void lh_doall(_LHASH *lh, LHASH_DOALL_FN_TYPE func); 00181 void lh_doall_arg(_LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg); 00182 unsigned long lh_strhash(const char *c); 00183 unsigned long lh_num_items(const _LHASH *lh); 00184 00185 # ifndef OPENSSL_NO_FP_API 00186 void lh_stats(const _LHASH *lh, FILE *out); 00187 void lh_node_stats(const _LHASH *lh, FILE *out); 00188 void lh_node_usage_stats(const _LHASH *lh, FILE *out); 00189 # endif 00190 00191 # ifndef OPENSSL_NO_BIO 00192 void lh_stats_bio(const _LHASH *lh, BIO *out); 00193 void lh_node_stats_bio(const _LHASH *lh, BIO *out); 00194 void lh_node_usage_stats_bio(const _LHASH *lh, BIO *out); 00195 # endif 00196 00197 /* Type checking... */ 00198 00199 # define LHASH_OF(type) struct lhash_st_##type 00200 00201 # define DECLARE_LHASH_OF(type) LHASH_OF(type) { int dummy; } 00202 00203 # define CHECKED_LHASH_OF(type,lh) \ 00204 ((_LHASH *)CHECKED_PTR_OF(LHASH_OF(type),lh)) 00205 00206 /* Define wrapper functions. */ 00207 # define LHM_lh_new(type, name) \ 00208 ((LHASH_OF(type) *)lh_new(LHASH_HASH_FN(name), LHASH_COMP_FN(name))) 00209 # define LHM_lh_error(type, lh) \ 00210 lh_error(CHECKED_LHASH_OF(type,lh)) 00211 # define LHM_lh_insert(type, lh, inst) \ 00212 ((type *)lh_insert(CHECKED_LHASH_OF(type, lh), \ 00213 CHECKED_PTR_OF(type, inst))) 00214 # define LHM_lh_retrieve(type, lh, inst) \ 00215 ((type *)lh_retrieve(CHECKED_LHASH_OF(type, lh), \ 00216 CHECKED_PTR_OF(type, inst))) 00217 # define LHM_lh_delete(type, lh, inst) \ 00218 ((type *)lh_delete(CHECKED_LHASH_OF(type, lh), \ 00219 CHECKED_PTR_OF(type, inst))) 00220 # define LHM_lh_doall(type, lh,fn) lh_doall(CHECKED_LHASH_OF(type, lh), fn) 00221 # define LHM_lh_doall_arg(type, lh, fn, arg_type, arg) \ 00222 lh_doall_arg(CHECKED_LHASH_OF(type, lh), fn, CHECKED_PTR_OF(arg_type, arg)) 00223 # define LHM_lh_num_items(type, lh) lh_num_items(CHECKED_LHASH_OF(type, lh)) 00224 # define LHM_lh_down_load(type, lh) (CHECKED_LHASH_OF(type, lh)->down_load) 00225 # define LHM_lh_node_stats_bio(type, lh, out) \ 00226 lh_node_stats_bio(CHECKED_LHASH_OF(type, lh), out) 00227 # define LHM_lh_node_usage_stats_bio(type, lh, out) \ 00228 lh_node_usage_stats_bio(CHECKED_LHASH_OF(type, lh), out) 00229 # define LHM_lh_stats_bio(type, lh, out) \ 00230 lh_stats_bio(CHECKED_LHASH_OF(type, lh), out) 00231 # define LHM_lh_free(type, lh) lh_free(CHECKED_LHASH_OF(type, lh)) 00232 00233 DECLARE_LHASH_OF(OPENSSL_STRING); 00234 DECLARE_LHASH_OF(OPENSSL_CSTRING); 00235 00236 #ifdef __cplusplus 00237 } 00238 #endif 00239 00240 #endif