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48 lines
1.9 KiB
Groff
48 lines
1.9 KiB
Groff
.\" **************************************************************************
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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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.\" * Copyright (C) 1998 - 2016, 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 https://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 CURLOPT_TCP_FASTOPEN 3 "16 Feb 2016" "libcurl 7.49.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_TCP_FASTOPEN \- enable TCP Fast Open
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_FASTOPEN, long enable);
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.SH DESCRIPTION
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Pass a long as parameter set to 1 to enable or 0 to disable.
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TCP Fast Open (RFC7413) is a mechanism that allows data to be carried in the
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SYN and SYN-ACK packets and consumed by the receiving end during the initial
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connection handshake, saving up to one full round-trip time (RTT).
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.SH DEFAULT
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0
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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TODO
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.SH AVAILABILITY
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Added in 7.49.0. This option is currently only supported on Linux and OS X
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El Capitan.
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.SH RETURN VALUE
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Returns CURLE_OK if fast open is supported by the operating system, otherwise
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returns CURLE_NOT_BUILT_IN.
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