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curl_easy_init: use less mallocs

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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.
This commit is contained in:
Daniel Stenberg 2013-04-26 22:23:08 +02:00
parent c4067a5678
commit 6420672879
5 changed files with 28 additions and 12 deletions
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8
lib/multiif.h
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@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
* 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
@ -22,6 +22,8 @@
*
***************************************************************************/
/*
* Prototypes for library-wide functions provided by multi.c
*/
@ -30,6 +32,10 @@ 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