.\" generated by cd2nroff 0.1 from CURLOPT_MAXAGE_CONN.md .TH CURLOPT_MAXAGE_CONN 3 "2024-11-18" libcurl .SH NAME CURLOPT_MAXAGE_CONN \- max idle time allowed for reusing a connection .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXAGE_CONN, long age); .fi .SH DESCRIPTION Pass a long as parameter containing \fIage\fP \- the maximum time in seconds allowed for an existing connection to have been idle to be considered for reuse for this request. The "connection cache" holds previously used connections. When a new request is to be done, libcurl considers any connection that matches for reuse. The \fICURLOPT_MAXAGE_CONN(3)\fP limit prevents libcurl from trying too old connections for reuse, since old connections have a higher risk of not working and thus trying them is a performance loss and sometimes service loss due to the difficulties to figure out the situation. If a connection is found in the cache that is older than this set \fIage\fP, it is closed instead. .SH DEFAULT 118 seconds .SH PROTOCOLS This functionality affects all supported protocols .SH EXAMPLE .nf int main(void) { CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* only allow 30 seconds idle time */ curl_easy_setopt(curl, CURLOPT_MAXAGE_CONN, 30L); curl_easy_perform(curl); } } .fi .SH AVAILABILITY Added in curl 7.65.0 .SH RETURN VALUE Returns CURLE_OK. .SH SEE ALSO .BR CURLOPT_FORBID_REUSE (3), .BR CURLOPT_FRESH_CONNECT (3), .BR CURLOPT_MAXLIFETIME_CONN (3), .BR CURLOPT_TIMEOUT (3)