Annotation of embedaddon/curl/docs/libcurl/opts/CURLOPT_PIPEWAIT.3, revision 1.1.1.1

1.1       misho       1: .\" **************************************************************************
                      2: .\" *                                  _   _ ____  _
                      3: .\" *  Project                     ___| | | |  _ \| |
                      4: .\" *                             / __| | | | |_) | |
                      5: .\" *                            | (__| |_| |  _ <| |___
                      6: .\" *                             \___|\___/|_| \_\_____|
                      7: .\" *
                      8: .\" * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
                      9: .\" *
                     10: .\" * This software is licensed as described in the file COPYING, which
                     11: .\" * you should have received as part of this distribution. The terms
                     12: .\" * are also available at https://curl.haxx.se/docs/copyright.html.
                     13: .\" *
                     14: .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
                     15: .\" * copies of the Software, and permit persons to whom the Software is
                     16: .\" * furnished to do so, under the terms of the COPYING file.
                     17: .\" *
                     18: .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
                     19: .\" * KIND, either express or implied.
                     20: .\" *
                     21: .\" **************************************************************************
                     22: .\"
                     23: .TH CURLOPT_PIPEWAIT 3 "May 01, 2016" "libcurl 7.70.0" "curl_easy_setopt options"
                     24: 
                     25: .SH NAME
                     26: CURLOPT_PIPEWAIT \- wait for pipelining/multiplexing
                     27: .SH SYNOPSIS
                     28: #include <curl/curl.h>
                     29: 
                     30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PIPEWAIT, long wait);
                     31: .SH DESCRIPTION
                     32: Set \fIwait\fP to 1L to tell libcurl to prefer to wait for a connection to
                     33: confirm or deny that it can do pipelining or multiplexing before continuing.
                     34: 
                     35: When about to perform a new transfer that allows pipelining or multiplexing,
                     36: libcurl will check for existing connections to re-use and pipeline on. If no
                     37: such connection exists it will immediately continue and create a fresh new
                     38: connection to use.
                     39: 
                     40: By setting this option to 1 - and having \fICURLMOPT_PIPELINING(3)\fP enabled
                     41: for the multi handle this transfer is associated with - libcurl will instead
                     42: wait for the connection to reveal if it is possible to pipeline/multiplex on
                     43: before it continues. This enables libcurl to much better keep the number of
                     44: connections to a minimum when using pipelining or multiplexing protocols.
                     45: 
                     46: The effect thus becomes that with this option set, libcurl prefers to wait and
                     47: re-use an existing connection for pipelining rather than the opposite: prefer
                     48: to open a new connection rather than waiting.
                     49: 
                     50: The waiting time is as long as it takes for the connection to get up and for
                     51: libcurl to get the necessary response back that informs it about its protocol
                     52: and support level.
                     53: .SH DEFAULT
                     54: 0 (off)
                     55: .SH PROTOCOLS
                     56: HTTP(S)
                     57: .SH EXAMPLE
                     58: .SH AVAILABILITY
                     59: Added in 7.43.0
                     60: .SH RETURN VALUE
                     61: Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
                     62: .SH "SEE ALSO"
                     63: .BR CURLOPT_FORBID_REUSE "(3), " CURLOPT_FRESH_CONNECT "(3), "
                     64: .BR CURLMOPT_PIPELINING "(3), " CURLMOPT_MAX_HOST_CONNECTIONS "(3), "

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>