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curl/docs/libcurl/opts/CURLOPT_TCP_KEEPIDLE.3
Daniel Stenberg 9a8b3b3e13
copyright: fix out-of-date copyright ranges and missing headers
Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.

Removed three (mostly usesless) README files from docs/

Closes #5141
2020-03-24 15:05:59 +01:00

62 lines
2.2 KiB
Groff

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.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), "