-.\"
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+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
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.TH curl_multi_setopt 3 "10 Oct 2006" "libcurl 7.16.0" "libcurl Manual"
.SH NAME
curl_multi_setopt \- set options for a curl multi handle
more callback details.
.IP CURLMOPT_SOCKETDATA
Pass a pointer to whatever you want passed to the \fBcurl_socket_callback\fP's
-forth argument, the userp pointer. This is not used by libcurl but only
+fourth argument, the userp pointer. This is not used by libcurl but only
passed-thru as-is. Set the callback pointer with
\fICURLMOPT_SOCKETFUNCTION\fP.
.IP CURLMOPT_PIPELINING
7.16.0)
.IP CURLMOPT_TIMERFUNCTION
Pass a pointer to a function matching the \fBcurl_multi_timer_callback\fP
-prototype. This function will then be called when the timeout value
+prototype: int curl_multi_timer_callback(CURLM *multi /* multi handle */,
+long timeout_ms /* timeout in milliseconds */, void *userp /* TIMERDATA */).
+This function will then be called when the timeout value
changes. The timeout value is at what latest time the application should call
one of the \&"performing" functions of the multi interface
(\fIcurl_multi_socket_action(3)\fP and \fIcurl_multi_perform(3)\fP) - to allow
libcurl to keep timeouts and retries etc to work. A timeout value of -1 means
that there is no timeout at all, and 0 means that the timeout is already
reached. Libcurl attempts to limit calling this only when the fixed future
-timeout time actually changes. See also \fICURLMOPT_TIMERDATA\fP. This
+timeout time actually changes. See also \fICURLMOPT_TIMERDATA\fP. The callback
+should return 0 on success, and -1 on error. This
callback can be used instead of, or in addition to,
\fIcurl_multi_timeout(3)\fP. (Added in 7.16.0)
.IP CURLMOPT_TIMERDATA
you should instead use the \fICURLOPT_MAXCONNECTS\fP option.
(Added in 7.16.3)
+.IP CURLMOPT_MAX_HOST_CONNECTIONS
+Pass a long. The set number will be used as the maximum amount of
+simultaneously open connections to a single host. For each new session to
+a host, libcurl will open a new connection up to the limit set by
+CURLMOPT_MAX_HOST_CONNECTIONS. When the limit is reached, the sessions will
+be pending until there are available connections. If CURLMOPT_PIPELINING is
+1, libcurl will try to pipeline if the host is capable of it.
+
+The default value is 0, which means that there is no limit.
+However, for backwards compatibility, setting it to 0 when CURLMOPT_PIPELINING
+is 1 will not be treated as unlimited. Instead it will open only 1 connection
+and try to pipeline on it.
+
+(Added in 7.30.0)
+.IP CURLMOPT_MAX_PIPELINE_LENGTH
+Pass a long. The set number will be used as the maximum amount of requests
+in a pipelined connection. When this limit is reached, libcurl will use another
+connection to the same host (see CURLMOPT_MAX_HOST_CONNECTIONS), or queue the
+requests until one of the pipelines to the host is ready to accept a request.
+Thus, the total number of requests in-flight is CURLMOPT_MAX_HOST_CONNECTIONS *
+CURLMOPT_MAX_PIPELINE_LENGTH.
+The default value is 5.
+
+(Added in 7.30.0)
+.IP CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE
+Pass a long. If a pipelined connection is currently processing a request
+with a Content-Length larger than CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE, that
+connection will not be considered for additional requests, even if it is
+shorter than CURLMOPT_MAX_PIPELINE_LENGTH.
+The default value is 0, which means that the penalization is inactive.
+
+(Added in 7.30.0)
+.IP CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE
+Pass a long. If a pipelined connection is currently processing a
+chunked (Transfer-encoding: chunked) request with a current chunk length
+larger than CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE, that connection will not be
+considered for additional requests, even if it is shorter than
+CURLMOPT_MAX_PIPELINE_LENGTH.
+The default value is 0, which means that the penalization is inactive.
+
+(Added in 7.30.0)
+.IP CURLMOPT_PIPELINING_SITE_BL
+Pass an array of char *, ending with NULL. This is a list of sites that are
+blacklisted from pipelining, i.e sites that are known to not support HTTP
+pipelining. The array is copied by libcurl.
+
+The default value is NULL, which means that there is no blacklist.
+
+Pass a NULL pointer to clear the blacklist.
+
+Example:
+
+.nf
+ site_blacklist[] =
+ {
+ "www.haxx.se",
+ "www.example.com:1234",
+ NULL
+ };
+
+ curl_multi_setopt(m, CURLMOPT_PIPELINE_SITE_BL, site_blacklist);
+.fi
+
+(Added in 7.30.0)
+.IP CURLMOPT_PIPELINING_SERVER_BL
+Pass an array of char *, ending with NULL. This is a list of server types
+prefixes (in the Server: HTTP header) that are blacklisted from pipelining,
+i.e server types that are known to not support HTTP pipelining. The array is
+copied by libcurl.
+
+Note that the comparison matches if the Server: header begins with the string
+in the blacklist, i.e "Server: Ninja 1.2.3" and "Server: Ninja 1.4.0" can
+both be blacklisted by having "Ninja" in the backlist.
+
+The default value is NULL, which means that there is no blacklist.
+
+Pass a NULL pointer to clear the blacklist.
+
+Example:
+
+.nf
+ server_blacklist[] =
+ {
+ "Microsoft-IIS/6.0",
+ "nginx/0.8.54",
+ NULL
+ };
+
+ curl_multi_setopt(m, CURLMOPT_PIPELINE_SERVER_BL, server_blacklist);
+.fi
+
+(Added in 7.30.0)
+.IP CURLMOPT_MAX_TOTAL_CONNECTIONS
+Pass a long. The set number will be used as the maximum amount of
+simultaneously open connections in total. For each new session, libcurl
+will open a new connection up to the limit set by
+CURLMOPT_MAX_TOTAL_CONNECTIONS. When the limit is reached, the sessions will
+be pending until there are available connections. If CURLMOPT_PIPELINING is
+1, libcurl will try to pipeline if the host is capable of it.
+
+The default value is 0, which means that there is no limit.
+However, for backwards compatibility, setting it to 0 when CURLMOPT_PIPELINING
+is 1 will not be treated as unlimited. Instead it will open only 1 connection
+and try to pipeline on it.
+
+(Added in 7.30.0)
.SH RETURNS
The standard CURLMcode for multi interface error codes. Note that it returns a
CURLM_UNKNOWN_OPTION if you try setting an option that this version of libcurl
projects / platform / upstream / curl.git / blobdiff