CURLOPT_MAXAGE_CONN − max idle time allowed for reusing a connection
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXAGE_CONN, long maxage);
Pass a long as parameter containing maxage - the maximum time in seconds that you allow an existing connection to have to be considered for reuse for this request.
The "connection cache" that holds previously used connections. When a new request is to be done, it will consider any connection that matches for reuse. The CURLOPT_MAXAGE_CONN(3) limit prevents libcurl from trying very old connections for reuse, since old connections have a high 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 maxage, it will instead be closed.
Default maxage is 118 seconds.
CURL *curl =
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* only allow
30 seconds idle time */
curl_easy_setopt(curl, CURLOPT_MAXAGE_CONN, 30L);
Added in libcurl 7.65.0
CURLOPT_TIMEOUT(3), CURLOPT_FORBID_REUSE(3), CURLOPT_FRESH_CONNECT(3),