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CURLMOPT_MAX_CONCURRENT_STREAMS(3) Library Functions Manual CURLMOPT_MAX_CONCURRENT_STREAMS(3)

NAME

CURLMOPT_MAX_CONCURRENT_STREAMS - max concurrent streams for http2

SYNOPSIS


#include <curl/curl.h>

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

DESCRIPTION

Pass a long indicating the max. The set number is used as the maximum number of concurrent streams libcurl should support on connections done using HTTP/2 or HTTP/3.
 
Valid values range from 1 to 2147483647 (2^31 - 1) and defaults to 100. The value passed here would be honored based on other system resources properties.

DEFAULT

100

PROTOCOLS

This functionality affects http only

EXAMPLE


int main(void)
{
CURLM *m = curl_multi_init();
/* max concurrent streams 200 */
curl_multi_setopt(m, CURLMOPT_MAX_CONCURRENT_STREAMS, 200L);
}

AVAILABILITY

Added in curl 7.67.0

RETURN VALUE

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

SEE ALSO

CURLMOPT_MAXCONNECTS(3), CURLOPT_MAXCONNECTS(3)
2025-05-14 libcurl
Copyright 2011-2025 Jonas 'Sortie' Termansen and contributors.
Sortix's source code is free software under the ISC license.
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