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CURLMOPT_M...ENT_STREAMS(3) Library Functions Manual CURLMOPT_M...ENT_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 num- ber 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 proper- ties. 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 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). SEE ALSO CURLMOPT_MAXCONNECTS(3), CURLOPT_MAXCONNECTS(3) libcurl 2026-06-11 CURLMOPT_M...ENT_STREAMS(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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