CURLMOPT_MAXCONNECTS
Section: curl_multi_setopt options (3)
Updated: November 04, 2020
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NAME
CURLMOPT_MAXCONNECTS - set 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 will be used as the
maximum amount of simultaneously open connections that libcurl may keep in its
connection cache after completed use. By default libcurl will enlarge 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.
DEFAULT
See DESCRIPTION
PROTOCOLS
All
EXAMPLE
CURLM *m = curl_multi_init();
/* only keep 10 connections in the cache */
curl_multi_setopt(m, CURLMOPT_MAXCONNECTS, 10L);
AVAILABILITY
Added in 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),