mirror of
https://github.com/curl/curl.git
synced 2024-12-27 06:59:43 +08:00
4f2239c5ca
Since the TCP keep-alive options were added in 705f0f7 the start and
interval default values have been 60, but that wasn't documented.
Bug: https://curl.haxx.se/mail/lib-2017-01/0000.html
Reported-by: Praveen Pvs
62 lines
2.2 KiB
Groff
62 lines
2.2 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2015, 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_KEEPIDLE 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
|
|
.SH NAME
|
|
CURLOPT_TCP_KEEPIDLE \- set TCP keep-alive idle time wait
|
|
.SH SYNOPSIS
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPIDLE, long delay);
|
|
.SH DESCRIPTION
|
|
Pass a long. Sets the \fIdelay\fP, in seconds, that the operating system will
|
|
wait while the connection is idle before sending keepalive probes. Not all
|
|
operating systems support this option.
|
|
.SH DEFAULT
|
|
60
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
|
|
|
|
/* enable TCP keep-alive for this transfer */
|
|
curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
|
|
|
|
/* set keep-alive idle time to 120 seconds */
|
|
curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
|
|
|
|
/* interval time between keep-alive probes: 60 seconds */
|
|
curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
|
|
|
|
curl_easy_perform(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.25.0
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH "SEE ALSO"
|
|
.BR CURLOPT_TCP_KEEPALIVE "(3), " CURLOPT_TCP_KEEPINTVL "(3), "
|