mirror of
https://github.com/curl/curl.git
synced 2024-12-15 06:40:09 +08:00
65 lines
2.5 KiB
Groff
65 lines
2.5 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2017, 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 CURLOPT_TCP_NODELAY 3 "30 Jun 2016" "libcurl 7.50.0" "curl_easy_setopt options"
|
|
.SH NAME
|
|
CURLOPT_TCP_NODELAY \- set the TCP_NODELAY option
|
|
.SH SYNOPSIS
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_NODELAY, long nodelay);
|
|
.SH DESCRIPTION
|
|
Pass a long specifying whether the TCP_NODELAY option is to be set or cleared
|
|
(1L = set, 0 = clear). The option is set by default. This will have no effect
|
|
after the connection has been established.
|
|
|
|
Setting this option to 1L will disable TCP's Nagle algorithm on this
|
|
connection. The purpose of this algorithm is to try to minimize the number of
|
|
small packets on the network (where "small packets" means TCP segments less
|
|
than the Maximum Segment Size (MSS) for the network).
|
|
|
|
Maximizing the amount of data sent per TCP segment is good because it
|
|
amortizes the overhead of the send. However, in some cases small segments may
|
|
need to be sent without delay. This is less efficient than sending larger
|
|
amounts of data at a time, and can contribute to congestion on the network if
|
|
overdone.
|
|
.SH DEFAULT
|
|
1
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
|
|
/* disable Nagle */
|
|
curl_easy_setopt(curl, CURLOPT_TCP_NODELAY, 0);
|
|
curl_easy_perform(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Always. The default was changed to 1 from 0 in 7.50.2.
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK
|
|
.SH "SEE ALSO"
|
|
.BR CURLOPT_SOCKOPTFUNCTION "(3), " CURLOPT_TCP_KEEPALIVE "(3), "
|