## NAME

CURLMOPT_PIPELINING - enable/disable HTTP pipelining

## SYNOPSIS

#include <curl/curl.h>

CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_PIPELINING, bool onoff);

## DESCRIPTION

Set the onoff parameter to 1 to make libcurl use HTTP pipelining for HTTP transfers done using this multi handle, as far as possible. This means that if you add a second request that can use an already existing connection, the second request will be "piped" on the same connection rather than being executed in parallel.

When using pipelining, there are also several other related options that are interesting to tweak and adjust to alter how libcurl spreads out requests on different connections or not etc.

## DEFAULT

0 (off)

## PROTOCOLS

HTTP(S)

## EXAMPLE

TODO

## AVAILABILITY

Added in 7.16.0

## RETURN VALUE

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

## SEE ALSO

CURLMOPT_MAX_PIPELINE_LENGTH, CURLMOPT_PIPELINING_SITE_BL, CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE, CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE, CURLMOPT_MAX_HOST_CONNECTIONS, CURLMOPT_MAXCONNECTS, CURLMOPT_MAX_HOST_CONNECTIONS,

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