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Diffstat (limited to 'docs/libcurl/opts/GNURLOPT_PIPEWAIT.3')
| -rw-r--r-- | docs/libcurl/opts/GNURLOPT_PIPEWAIT.3 | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLOPT_PIPEWAIT.3 b/docs/libcurl/opts/GNURLOPT_PIPEWAIT.3 new file mode 100644 index 000000000..5d68c99c7 --- /dev/null +++ b/docs/libcurl/opts/GNURLOPT_PIPEWAIT.3 @@ -0,0 +1,63 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2016, 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 +.\" * are also available at https://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH GNURLOPT_PIPEWAIT 3 "12 May 2015" "libcurl 7.43.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_PIPEWAIT \- wait for pipelining/multiplexing +.SH SYNOPSIS +#include <gnurl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PIPEWAIT, long wait); +.SH DESCRIPTION +Set \fIwait\fP to 1L to tell libcurl to prefer to wait for a connection to +confirm or deny that it can do pipelining or multiplexing before continuing. + +When about to perform a new transfer that allows pipelining or multiplexing, +libcurl will check for existing connections to re-use and pipeline on. If no +such connection exists it will immediately continue and create a fresh new +connection to use. + +By setting this option to 1 - and having \fICURLMOPT_PIPELINING(3)\fP enabled +for the multi handle this transfer is associated with - libcurl will instead +wait for the connection to reveal if it is possible to pipeline/multiplex on +before it continues. This enables libcurl to much better keep the number of +connections to a minimum when using pipelining or multiplexing protocols. + +The effect thus becomes that with this option set, libcurl prefers to wait and +re-use an existing connection for pipelining rather than the opposite: prefer +to open a new connection rather than waiting. + +The waiting time is as long as it takes for the connection to get up and for +libcurl to get the necessary response back that informs it about its protocol +and support level. +.SH DEFAULT +0 (off) +.SH PROTOCOLS +HTTP(S) +.SH EXAMPLE +.SH AVAILABILITY +Added in 7.43.0 +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. +.SH "SEE ALSO" +.BR CURLOPT_FORBID_REUSE "(3), " CURLOPT_FRESH_CONNECT "(3), " +.BR CURLMOPT_PIPELINING "(3), " CURLMOPT_MAX_HOST_CONNECTIONS "(3), " |