CURLOPT_TCP_KEEPIDLE
Section: curl_easy_setopt options (3)
Updated: November 04, 2020
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NAME
CURLOPT_TCP_KEEPIDLE - set TCP keep-alive idle time wait
SYNOPSIS
#include <
curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPIDLE, long delay);
DESCRIPTION
Pass a long. Sets the
delay, in seconds, that the operating system will
wait while the connection is idle before sending keepalive probes. Not all
operating systems support this option.
DEFAULT
60
PROTOCOLS
All
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://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);
}
AVAILABILITY
Added in 7.25.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_TCP_KEEPALIVE(3),
CURLOPT_TCP_KEEPINTVL(3),