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curl/lib/multiif.h
Daniel Stenberg 6420672879 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 22:55:55 +02:00

87 lines
3.4 KiB
C

#ifndef HEADER_CURL_MULTIIF_H
#define HEADER_CURL_MULTIIF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2013, 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 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.
*
***************************************************************************/
/*
* Prototypes for library-wide functions provided by multi.c
*/
void Curl_expire(struct SessionHandle *data, long milli);
bool Curl_multi_pipeline_enabled(const struct Curl_multi* multi);
void Curl_multi_handlePipeBreak(struct SessionHandle *data);
/* Internal version of curl_multi_init() accepts size parameters for the
socket and connection hashes */
struct Curl_multi *Curl_multi_handle(int hashsize, int chashsize);
/* the write bits start at bit 16 for the *getsock() bitmap */
#define GETSOCK_WRITEBITSTART 16
#define GETSOCK_BLANK 0 /* no bits set */
/* set the bit for the given sock number to make the bitmap for writable */
#define GETSOCK_WRITESOCK(x) (1 << (GETSOCK_WRITEBITSTART + (x)))
/* set the bit for the given sock number to make the bitmap for readable */
#define GETSOCK_READSOCK(x) (1 << (x))
#ifdef DEBUGBUILD
/*
* Curl_multi_dump is not a stable public function, this is only meant to
* allow easier tracking of the internal handle's state and what sockets
* they use. Only for research and development DEBUGBUILD enabled builds.
*/
void Curl_multi_dump(const struct Curl_multi *multi_handle);
#endif
/* Update the current connection of a One_Easy handle */
void Curl_multi_set_easy_connection(struct SessionHandle *handle,
struct connectdata *conn);
void Curl_multi_process_pending_handles(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_MAX_HOST_CONNECTIONS option */
size_t Curl_multi_max_host_connections(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_MAX_PIPELINE_LENGTH option */
size_t Curl_multi_max_pipeline_length(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE option */
curl_off_t Curl_multi_content_length_penalty_size(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE option */
curl_off_t Curl_multi_chunk_length_penalty_size(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_PIPELINING_SITE_BL option */
struct curl_llist *Curl_multi_pipelining_site_bl(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_PIPELINING_SERVER_BL option */
struct curl_llist *Curl_multi_pipelining_server_bl(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_MAX_TOTAL_CONNECTIONS option */
size_t Curl_multi_max_total_connections(struct Curl_multi *multi);
#endif /* HEADER_CURL_MULTIIF_H */