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e0dd6eb4a4
- examples: sync debug output printf masks. - INSTALL-CMAKE.md: tidy up section for some options. - curl_sha512_256: delete comment suggesting an optimization. - vtls/keylog: scope a variable. - vtls/openssl: make a source code URL a permalink. - vtls/schannel: drop redundant parentheses. - test1119.pl: robustify `$1` -> `$s`. - sync arg names in comments to match the code. - tidy up and minor fixes to comments. - fix formatting/indenting/comment/newline/include nits. - move `UNITTEST` protos next to definitions, sync their argument names. - make variables static. - add parentheses to Perl `open()` calls. - drop unnecessary double quotes in Perl. - clang-format. Closes #21000
105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
#ifndef HEADER_CURL_HASH_H
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#define HEADER_CURL_HASH_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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/* Hash function prototype */
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typedef size_t (*hash_function)(void *key,
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size_t key_length,
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size_t slots_num);
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/*
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Comparator function prototype. Compares two keys.
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*/
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typedef size_t (*comp_function)(void *key1,
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size_t key1_len,
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void *key2,
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size_t key2_len);
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typedef void (*Curl_hash_dtor)(void *);
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typedef void (*Curl_hash_elem_dtor)(void *key, size_t key_len, void *p);
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struct Curl_hash_element {
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struct Curl_hash_element *next;
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void *ptr;
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Curl_hash_elem_dtor dtor;
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size_t key_len;
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char key[1]; /* allocated memory following the struct */
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};
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struct Curl_hash {
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struct Curl_hash_element **table;
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/* Hash function to be used for this hash table */
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hash_function hash_func;
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/* Comparator function to compare keys */
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comp_function comp_func;
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/* General element construct, unless element itself carries one */
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Curl_hash_dtor dtor;
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size_t slots;
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size_t size;
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#ifdef DEBUGBUILD
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int init;
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#endif
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};
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struct Curl_hash_iterator {
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struct Curl_hash *hash;
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size_t slot_index;
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struct Curl_hash_element *current;
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#ifdef DEBUGBUILD
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int init;
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#endif
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};
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void Curl_hash_init(struct Curl_hash *h,
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size_t slots,
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hash_function hfunc,
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comp_function comparator,
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Curl_hash_dtor dtor);
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void *Curl_hash_add(struct Curl_hash *h, void *key, size_t key_len, void *p);
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void *Curl_hash_add2(struct Curl_hash *h, void *key, size_t key_len, void *p,
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Curl_hash_elem_dtor dtor);
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int Curl_hash_delete(struct Curl_hash *h, void *key, size_t key_len);
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void *Curl_hash_pick(struct Curl_hash *h, void *key, size_t key_len);
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void Curl_hash_destroy(struct Curl_hash *h);
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size_t Curl_hash_count(struct Curl_hash *h);
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void Curl_hash_clean(struct Curl_hash *h);
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void Curl_hash_clean_with_criterium(struct Curl_hash *h, void *user,
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int (*comp)(void *, void *));
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size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num);
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size_t curlx_str_key_compare(void *k1, size_t key1_len, void *k2,
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size_t key2_len);
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void Curl_hash_start_iterate(struct Curl_hash *hash,
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struct Curl_hash_iterator *iter);
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struct Curl_hash_element *Curl_hash_next_element(
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struct Curl_hash_iterator *iter);
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void Curl_hash_print(struct Curl_hash *h, void (*func)(void *));
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#endif /* HEADER_CURL_HASH_H */
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