CURLINFO_SPEED_DOWNLOAD(3) Introduction to Library Functions

NAME

CURLINFO_SPEED_DOWNLOAD - get download speed

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_DOWNLOAD,
double *speed);

DESCRIPTION

Pass a pointer to a double to receive the average download speed that
curl measured for the complete download. Measured in bytes/second.

CURLINFO_SPEED_DOWNLOAD_T(3) is a newer replacement that returns a
more sensible variable type.

PROTOCOLS

This functionality affects all supported protocols

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

/* Perform the request */
res = curl_easy_perform(curl);

if(!res) {
double speed;
res = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD, &speed);
if(!res) {
printf("Download speed %.0f bytes/sec\n", speed);
}
}
}
}

DEPRECATED

Deprecated since 7.55.0.

AVAILABILITY

Added in curl 7.4.1

RETURN VALUE

curl_easy_getinfo(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error
occurred, see libcurl-errors(3).

SEE ALSO

CURLINFO_SIZE_UPLOAD_T(3), CURLINFO_SPEED_UPLOAD(3),
curl_easy_getinfo(3), curl_easy_setopt(3)

libcurl 2025-02-25 CURLINFO_SPEED_DOWNLOAD(3)