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CURLMOPT_MAX_HOST_CONNECTIONS(3)                     curl_multi_setopt options


NAME

       CURLMOPT_MAX_HOST_CONNECTIONS - set max number of connections to a
       single host


SYNOPSIS

       #include <curl/curl.h>

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


DESCRIPTION

       Pass a long to indicate max. The set number will be used as the maximum
       amount of simultaneously open connections to a single host (a host
       being the same as a host name + port number pair). For each new session
       to a host, libcurl will open a new connection up to the limit set by
       CURLMOPT_MAX_HOST_CONNECTIONS(3). When the limit is reached, the
       sessions will be pending until a connection becomes available. If
       CURLMOPT_PIPELINING(3) is enabled, libcurl will try to pipeline if the
       host is capable of it.

       The default max value is 0, unlimited.  However, for backwards
       compatibility, setting it to 0 when CURLMOPT_PIPELINING(3) is 1 will
       not be treated as unlimited. Instead it will open only 1 connection and
       try to pipeline on it.

       This set limit is also used for proxy connections, and then the proxy
       is considered to be the host for which this limit counts.


DEFAULT

       0


PROTOCOLS

       HTTP(S)


EXAMPLE

       CURLM *m = curl_multi_init();
       /* do no more than 2 connections per host */
       curl_multi_setopt(m, CURLMOPT_MAX_HOST_CONNECTIONS, 2L);


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_TOTAL_CONNECTIONS(3),

libcurl 7.73.0                   May 27, 2017 CURLMOPT_MAX_HOST_CONNECTIONS(3)

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