mirror of
https://github.com/moparisthebest/curl
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d021f2e8a0
A bundle is a list of all persistent connections to the same host. The connection cache consists of a hash of bundles, with the hostname as the key. The benefits may not be obvious, but they are two: 1) Faster search for connections to reuse, since the hash lookup only finds connections to the host in question. 2) It lays out the groundworks for an upcoming patch, which will introduce multiple HTTP pipelines. This patch also removes the awkward list of "closure handles", which were needed to send QUIT commands to the FTP server when closing a connection. Now we allocate a separate closure handle and use that one to close all connections. This has been tested in a live system for a few weeks, and of course passes the test suite.
107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
#ifndef __HASH_H
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#define __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) 1998 - 2007, 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 http://curl.haxx.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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***************************************************************************/
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#include "setup.h"
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#include <stddef.h>
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#include "llist.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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struct curl_hash {
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struct curl_llist **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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curl_hash_dtor dtor;
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int slots;
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size_t size;
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};
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struct curl_hash_element {
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void *ptr;
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char *key;
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size_t key_len;
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};
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struct curl_hash_iterator {
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struct curl_hash *hash;
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int slot_index;
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struct curl_llist_element *current_element;
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};
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int Curl_hash_init(struct curl_hash *h,
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int 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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struct curl_hash *Curl_hash_alloc(int 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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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 *, void * key, size_t key_len);
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void Curl_hash_apply(struct curl_hash *h, void *user,
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void (*cb)(void *user, void *ptr));
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int 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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void Curl_hash_destroy(struct curl_hash *h);
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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 Curl_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 *
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Curl_hash_next_element(struct curl_hash_iterator *iter);
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void Curl_hash_print(struct curl_hash *h,
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void (*func)(void *));
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#endif
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