CURLOPT_TCP_KEEPINTVL - alive interval
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval);
CURLOPT_TCP_KEEPINTVL(3) curl_easy_setopt options CURLOPT_TCP_KEEPINTVL(3) NAME CURLOPT_TCP_KEEPINTVL - TCP keep-alive interval SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval); DESCRIPTION Pass a long. Sets the interval, in seconds, that the operating system will wait between sending keepalive probes. Not all operating systems support this option. (Added in 7.25.0) 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 Always RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_TCP_KEEPALIVE(3), CURLOPT_TCP_KEEPIDLE(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 26, 2021 CURLOPT_TCP_KEEPINTVL(3)