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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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2015-05-08 04:43:36 -04:00
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.\" * Copyright (C) 1998 - 2015, 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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.\"
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.TH CURLMOPT_PIPELINING 3 "17 Jun 2014" "libcurl 7.37.0" "curl_multi_setopt options"
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.SH NAME
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CURLMOPT_PIPELINING \- enable/disable HTTP pipelining
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_PIPELINING, long bits);
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.SH DESCRIPTION
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Set the \fBbits\fP parameter to 1 to make libcurl use HTTP pipelining for
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HTTP/1.1 transfers done using this multi handle, as far as possible. This
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means that if you add a second request that can use an already existing
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connection, the second request will be \&"piped" on the same connection rather
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than being executed in parallel.
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When using pipelining, there are also several other related options that are
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interesting to tweak and adjust to alter how libcurl spreads out requests on
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different connections or not etc.
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2015-05-08 04:43:36 -04:00
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Starting in 7.43.0, the \fBbits\fP parameter's bit 1 also has a meaning and
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libcurl is now offering symbol names for the bits:
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.IP CURLPIPE_NOTHING (0)
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Default, which means doing no attempts at pipelining or multiplexing.
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.IP CURLPIPE_HTTP1 (1)
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If this bit is set, libcurl will try to pipeline HTTP/1.1 requests on
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connections that are already established and in use to hosts.
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.IP CURLPIPE_MULTIPLEX (2)
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If this bit is set, libcurl will try to multiplex the new transfer over an
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existing connection if possible. This requires HTTP/2.
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.SH DEFAULT
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0 (off)
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.SH PROTOCOLS
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HTTP(S)
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.SH EXAMPLE
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TODO
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.SH AVAILABILITY
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2015-05-08 04:43:36 -04:00
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Added in 7.16.0. Multiplex support bit added in 7.43.0.
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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_PIPELINE_LENGTH "(3), "
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.BR CURLMOPT_PIPELINING_SITE_BL "(3), "
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.BR CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE "(3), "
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.BR CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE "(3), "
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.BR CURLMOPT_MAX_HOST_CONNECTIONS "(3), "
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.BR CURLMOPT_MAXCONNECTS "(3), "
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.BR CURLMOPT_MAX_HOST_CONNECTIONS "(3), "
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