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CURLMOPT_MAX_TOTAL_CONNECTIONS

Section: curl_multi_setopt options (3)
Updated: May 27, 2017
Index Return to Main Contents

NAME

CURLMOPT_MAX_TOTAL_CONNECTIONS - max simultaneously open connections

SYNOPSIS

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 CURLMOPT_MAX_TOTAL_CONNECTIONS(3). When the limit is reached, the sessions will be pending until there are available connections. If CURLMOPT_PIPELINING(3) is enabled, libcurl will try to pipeline or use multiplexing if the host is capable of it.

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.