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curl/lib/conncache.h

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conncache: fix enumerated type mixed with another type
2012-12-10 11:04:13 -05:00
#ifndef HEADER_CURL_CONNCACHE_H
#define HEADER_CURL_CONNCACHE_H
Introducing a new persistent connection caching system using "bundles". 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.
2012-12-06 06:12:04 -05:00
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
always-multi: always use non-blocking internals Remove internal separated behavior of the easy vs multi intercace. curl_easy_perform() is now using the multi interface itself. Several minor multi interface quirks and bugs have been fixed in the process. Much help with debugging this has been provided by: Yang Tse
2013-01-17 06:59:23 -05:00
* Copyright (C) 2012, 2013, Linus Nielsen Feltzing, <linus@haxx.se>
Introducing a new persistent connection caching system using "bundles". 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.
2012-12-06 06:12:04 -05:00
*
* 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 http://curl.haxx.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.
*
***************************************************************************/
struct conncache {
struct curl_hash *hash;
size_t num_connections;
conncache: move the connection counter to the cache struct The static connection counter caused a race condition. Moving the connection id counter into conncache solves it, as well as simplifying the related logic.
2014-06-12 14:36:41 -04:00
size_t next_connection_id;
Introducing a new persistent connection caching system using "bundles". 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.
2012-12-06 06:12:04 -05:00
};
curl_easy_init: use less mallocs By introducing an internal alternative to curl_multi_init() that accepts parameters to set the hash sizes, easy handles will now use tiny socket and connection hash tables since it will only ever add a single easy handle to that multi handle. This decreased the number mallocs in test 40 (which is a rather simple and typical easy interface use case) from 1142 to 138. The maximum amount of memory allocated used went down from 118969 to 78805.
2013-04-26 16:23:08 -04:00
struct conncache *Curl_conncache_init(int size);
Introducing a new persistent connection caching system using "bundles". 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.
2012-12-06 06:12:04 -05:00
void Curl_conncache_destroy(struct conncache *connc);
struct connectbundle *Curl_conncache_find_bundle(struct conncache *connc,
char *hostname);
CURLcode Curl_conncache_add_conn(struct conncache *connc,
struct connectdata *conn);
void Curl_conncache_remove_conn(struct conncache *connc,
struct connectdata *conn);
void Curl_conncache_foreach(struct conncache *connc,
void *param,
Curl_conncache_foreach: allow callback to break loop ... and have it take a proper 'struct connectdata *' as first argument
2012-12-11 14:13:29 -05:00
int (*func)(struct connectdata *conn,
void *param));
Introducing a new persistent connection caching system using "bundles". 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.
2012-12-06 06:12:04 -05:00
struct connectdata *
Curl_conncache_find_first_connection(struct conncache *connc);
void Curl_conncache_print(struct conncache *connc);
conncache: fix enumerated type mixed with another type
2012-12-10 11:04:13 -05:00
#endif /* HEADER_CURL_CONNCACHE_H */
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