NAME

       CURLMOPT_MAXCONNECTS - size of connection cache

SYNOPSIS

       #include <curl/curl.h>

       CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAXCONNECTS, long max);

DESCRIPTION

       Pass  a  long  indicating  the  max.  The  set  number  is  used  as the maximum amount of
       simultaneously open connections that libcurl  may  keep  in  its  connection  cache  after
       completed  use. By default libcurl enlarges the size for each added easy handle to make it
       fit 4 times the number of added easy handles.

       By setting this option, you can prevent the cache size from growing beyond the  limit  set
       by you.

       When  the  cache is full, curl closes the oldest one in the cache to prevent the number of
       open connections from increasing.

       This option is for the multi handle's use only, when using the easy interface  you  should
       instead use the CURLOPT_MAXCONNECTS(3) option.

       See CURLMOPT_MAX_TOTAL_CONNECTIONS(3) for limiting the number of active connections.

       Changing this value when there are transfers in progress is possible, and the new value is
       then used the next time checks are performed. Lowering the value does  however  not  close
       down any active transfers, it simply does not allow new ones to get made.

DEFAULT

       See DESCRIPTION

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         CURLM *m = curl_multi_init();
         /* only keep 10 connections in the cache */
         curl_multi_setopt(m, CURLMOPT_MAXCONNECTS, 10L);
       }

AVAILABILITY

       Added in curl 7.16.3

RETURN VALUE

       Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.

SEE ALSO

       CURLMOPT_MAX_HOST_CONNECTIONS(3), CURLOPT_MAXCONNECTS(3)