CURLMOPT_MAX_TOTAL_CONNECTIONS(3)                    curl_multi_setopt options

NAME
       CURLMOPT_MAX_TOTAL_CONNECTIONS - max simultaneously open connections

SYNOPSIS
       #include <curl/curl.h>

       CURLMcode curl_multi_setopt(CURLM *handle,
       CURLMOPT_MAX_TOTAL_CONNECTIONS, long amount);

DESCRIPTION
       Pass a long for the amount. The set number will be used as the maximum
       number of simultaneously open connections in total using this multi
       handle. For each new session, libcurl will open a new connection up to
       the limit set by _MAX_TOTAL_CONNECTIONS&section=3">CURLMOPT_MAX_TOTAL_CONNECTIONS(3). When the limit is
       reached, the sessions will be pending until there are available
       connections. If _PIPELINING&section=3">CURLMOPT_PIPELINING(3) is enabled, libcurl will try to
       use multiplexing if the host is capable of it.

       When more transfers are added to the multi handle than what can be
       performed due to the set limit, they will be queued up waiting for
       their chance. When that happens, the _TIMEOUT_MS&section=3">CURLOPT_TIMEOUT_MS(3) timeout will
       be counted inclusive of the waiting time, meaning that if you set a too
       narrow timeout in such a case the transfer might never even start
       before it times out.

       Even in the queued up situation, the _CONNECTTIMEOUT_MS&section=3">CURLOPT_CONNECTTIMEOUT_MS(3)
       timeout is however treated as a per-connect timeout.

DEFAULT
       The default value is 0, which means that there is no limit. It is then
       simply controlled by the number of easy handles added.

PROTOCOLS
       All

EXAMPLE
       CURLM *m = curl_multi_init();
       /* never do more than 15 connections */
       curl_multi_setopt(m, CURLMOPT_MAX_TOTAL_CONNECTIONS, 15L);

AVAILABILITY
       Added in 7.30.0

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

SEE ALSO
       CURLMOPT_MAXCONNECTS(3), CURLMOPT_MAX_HOST_CONNECTIONS(3),

libcurl 7.77.0                  March 17, 2021
                                             CURLMOPT_MAX_TOTAL_CONNECTIONS(3)