mirror of
https://github.com/curl/curl.git
synced 2024-11-27 05:50:21 +08:00
101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
#ifndef HEADER_CURL_HASH_H
|
|
#define HEADER_CURL_HASH_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#include <stddef.h>
|
|
|
|
#include "llist.h"
|
|
|
|
/* Hash function prototype */
|
|
typedef size_t (*hash_function) (void *key,
|
|
size_t key_length,
|
|
size_t slots_num);
|
|
|
|
/*
|
|
Comparator function prototype. Compares two keys.
|
|
*/
|
|
typedef size_t (*comp_function) (void *key1,
|
|
size_t key1_len,
|
|
void *key2,
|
|
size_t key2_len);
|
|
|
|
typedef void (*Curl_hash_dtor)(void *);
|
|
|
|
struct Curl_hash {
|
|
struct Curl_llist *table;
|
|
|
|
/* Hash function to be used for this hash table */
|
|
hash_function hash_func;
|
|
|
|
/* Comparator function to compare keys */
|
|
comp_function comp_func;
|
|
Curl_hash_dtor dtor;
|
|
int slots;
|
|
size_t size;
|
|
};
|
|
|
|
struct Curl_hash_element {
|
|
struct Curl_llist_element list;
|
|
void *ptr;
|
|
size_t key_len;
|
|
char key[1]; /* allocated memory following the struct */
|
|
};
|
|
|
|
struct Curl_hash_iterator {
|
|
struct Curl_hash *hash;
|
|
int slot_index;
|
|
struct Curl_llist_element *current_element;
|
|
};
|
|
|
|
void Curl_hash_init(struct Curl_hash *h,
|
|
int slots,
|
|
hash_function hfunc,
|
|
comp_function comparator,
|
|
Curl_hash_dtor dtor);
|
|
|
|
void *Curl_hash_add(struct Curl_hash *h, void *key, size_t key_len, void *p);
|
|
int Curl_hash_delete(struct Curl_hash *h, void *key, size_t key_len);
|
|
void *Curl_hash_pick(struct Curl_hash *, void *key, size_t key_len);
|
|
void Curl_hash_apply(struct Curl_hash *h, void *user,
|
|
void (*cb)(void *user, void *ptr));
|
|
#define Curl_hash_count(h) ((h)->size)
|
|
void Curl_hash_destroy(struct Curl_hash *h);
|
|
void Curl_hash_clean(struct Curl_hash *h);
|
|
void Curl_hash_clean_with_criterium(struct Curl_hash *h, void *user,
|
|
int (*comp)(void *, void *));
|
|
size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num);
|
|
size_t Curl_str_key_compare(void *k1, size_t key1_len, void *k2,
|
|
size_t key2_len);
|
|
void Curl_hash_start_iterate(struct Curl_hash *hash,
|
|
struct Curl_hash_iterator *iter);
|
|
struct Curl_hash_element *
|
|
Curl_hash_next_element(struct Curl_hash_iterator *iter);
|
|
|
|
void Curl_hash_print(struct Curl_hash *h,
|
|
void (*func)(void *));
|
|
|
|
|
|
#endif /* HEADER_CURL_HASH_H */
|