CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE - chunk length threshold for pipelining

Added in curl 7.30.0

0, which means that penalization is inactive.

No function since pipelining was removed in 7.62.0. Pass a long with a size in bytes. If a transfer in a pipeline is currently processing a chunked (Transfer-encoding: chunked) request with a current chunk length larger than CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE(3), that pipeline is not considered for additional requests, even if it is shorter than CURLMOPT_MAX_PIPELINE_LENGTH(3).

int main(void) { CURLM *m = curl_multi_init(); long maxchunk = 10000; curl_multi_setopt(m, CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE, maxchunk); }

CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE - chunk length threshold for pipelining

This functionality affects http only

curl_multi_setopt(3) returns a CURLMcode indicating success or error. CURLM_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).

CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE(3), CURLMOPT_MAX_PIPELINE_LENGTH(3), CURLMOPT_PIPELINING(3) libcurl 2025-06-16 CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE(3)

#include <curl/curl.h> CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE, long size);