DOKK / manpages / debian 12 / libcurl4-doc / CURLOPT_LOW_SPEED_LIMIT.3.en
CURLOPT_LOW_SPEED_LIMIT(3) curl_easy_setopt options CURLOPT_LOW_SPEED_LIMIT(3)

CURLOPT_LOW_SPEED_LIMIT - low speed limit in bytes per second

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

long speedlimit);

Pass a long as parameter. It contains the average transfer speed in bytes per second that the transfer should be below during CURLOPT_LOW_SPEED_TIME(3) seconds for libcurl to consider it to be too slow and abort.

0, disabled

All

curl = curl_easy_init();
if(curl) {

curl_easy_setopt(curl, CURLOPT_URL, url);
/* abort if slower than 30 bytes/sec during 60 seconds */
curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 60L);
curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 30L);
res = curl_easy_perform(curl);
if(CURLE_OPERATION_TIMEDOUT == res) {
printf("Timeout!\n");
}
/* always cleanup */
curl_easy_cleanup(curl); }

Always

Returns CURLE_OK

CURLOPT_LOW_SPEED_TIME(3), CURLOPT_TIMEOUT(3),

January 2, 2023 libcurl 7.88.1