DOKK / manpages / debian 10 / libcurl4-doc / CURLOPT_MAX_RECV_SPEED_LARGE.3.en
CURLOPT_MAX_RECV_SPEED_LARGE(3) curl_easy_setopt options CURLOPT_MAX_RECV_SPEED_LARGE(3)

CURLOPT_MAX_RECV_SPEED_LARGE - rate limit data download speed

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAX_RECV_SPEED_LARGE,

curl_off_t speed);

Pass a curl_off_t as parameter. If a download exceeds this speed (counted in bytes per second) the transfer will pause to keep the speed less than or equal to the parameter value. Defaults to unlimited speed.

This option doesn't affect transfer speeds done with FILE:// URLs.

0, disabled

All but file://

CURL *curl = curl_easy_init();
if(curl) {

CURLcode ret;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
/* cap the download speed to 31415 bytes/sec */
curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, (curl_off_t)31415);
ret = curl_easy_perform(curl); }

Added in 7.15.5

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

CURLOPT_MAX_SEND_SPEED_LARGE(3), CURLOPT_LOW_SPEED_LIMIT(3),

May 30, 2017 libcurl 7.64.0