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 maximum amount of connections that libcurl may keep alive in its
       connection cache after 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 prevent the cache size from growing beyond the limit set by you.

       When  the  cache is full, curl closes the oldest connection present in the cache to prevent the number of
       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 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

       curl_multi_setopt(3) returns a CURLMcode indicating success or error.

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

SEE ALSO

       CURLMOPT_MAX_HOST_CONNECTIONS(3), CURLOPT_MAXCONNECTS(3)

libcurl                                            2025-03-05                            CURLMOPT_MAXCONNECTS(3)