plucky (3) CURLOPT_MAXCONNECTS.3.gz

NAME

       CURLOPT_MAXCONNECTS - maximum connection cache size

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXCONNECTS, long amount);

DESCRIPTION

       Pass  a  long.  The  set  amount  is the maximum number of connections that libcurl may keep alive in its
       connection cache after use. The default is 5, and there is not much point in changing this  value  unless
       you  are  perfectly  aware  of  how this works. This concerns connections using any of the protocols that
       support persistent connections.

       When reaching the maximum limit, curl closes the oldest connection present in the cache  to  prevent  the
       number of connections from increasing.

       If  you  already have performed transfers with this curl handle, setting a smaller CURLOPT_MAXCONNECTS(3)
       than before may cause open connections to get closed unnecessarily.

       If you add this easy handle to a multi handle, this setting is not acknowledged, and you must instead use
       curl_multi_setopt(3) and the CURLMOPT_MAXCONNECTS(3) option.

DEFAULT

       5

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode ret;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           /* limit the connection cache for this handle to no more than 3 */
           curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 3L);
           ret = curl_easy_perform(curl);
         }
       }

AVAILABILITY

       Added in curl 7.7

RETURN VALUE

       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).

SEE ALSO

       CURLMOPT_MAXCONNECTS(3),       CURLMOPT_MAX_HOST_CONNECTIONS(3),       CURLMOPT_MAX_TOTAL_CONNECTIONS(3),
       CURLOPT_MAXREDIRS(3)