2014-11-04 06:11:37 +08:00
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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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2017-05-28 05:11:26 +08:00
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.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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2014-11-04 06:11:37 +08:00
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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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2016-02-03 07:19:02 +08:00
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.\" * are also available at https://curl.haxx.se/docs/copyright.html.
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2014-11-04 06:11:37 +08:00
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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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.\"
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.TH CURLMOPT_MAXCONNECTS 3 "17 Jun 2014" "libcurl 7.37.0" "curl_multi_setopt options"
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.SH NAME
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CURLMOPT_MAXCONNECTS \- set size of connection cache
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.SH SYNOPSIS
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#include <curl/curl.h>
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2014-11-04 17:31:24 +08:00
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CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAXCONNECTS, long max);
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.SH DESCRIPTION
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Pass a long indicating the \fBmax\fP. The set number will be used as the
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maximum amount of simultaneously open connections that libcurl may keep in its
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connection cache after completed use. By default libcurl will enlarge the size
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for each added easy handle to make it fit 4 times the number of added easy
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handles.
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By setting this option, you can prevent the cache size from growing beyond the
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limit set by you.
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When the cache is full, curl closes the oldest one in the cache to prevent the
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number of open connections from increasing.
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This option is for the multi handle's use only, when using the easy interface
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you should instead use the \fICURLOPT_MAXCONNECTS(3)\fP option.
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See \fICURLMOPT_MAX_TOTAL_CONNECTIONS(3)\fP for limiting the number of active
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connections.
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.SH DEFAULT
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See DESCRIPTION
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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2017-05-28 05:11:26 +08:00
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.nf
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CURLM *m = curl_multi_init();
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/* only keep 10 connections in the cache */
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curl_multi_setopt(m, CURLMOPT_MAXCONNECTS, 10L);
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.fi
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.SH AVAILABILITY
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Added in 7.16.3
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.SH RETURN VALUE
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Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR CURLMOPT_MAX_HOST_CONNECTIONS "(3), "
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.BR CURLOPT_MAXCONNECTS "(3), "
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