CURLINFO_SPEED_UPLOAD_T(3) Introduction to Library Functions
CURLINFO_SPEED_UPLOAD_T - upload speed
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_UPLOAD_T,
curl_off_t *speed);
Pass a pointer to a curl_off_t to receive the average upload speed
that curl measured for the complete upload. Measured in bytes/second.
This functionality affects all supported protocols
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request */
result = curl_easy_perform(curl);
if(!result) {
curl_off_t speed;
result = curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD_T, &speed);
if(!result) {
printf("Upload speed %" CURL_FORMAT_CURL_OFF_T " bytes/sec\n", speed);
}
}
}
}
Added in curl 7.55.0
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).
CURLINFO_SPEED_DOWNLOAD_T(3), curl_easy_getinfo(3),
curl_easy_setopt(3)
libcurl 2026-01-08 CURLINFO_SPEED_UPLOAD_T(3)
NAME
CURLINFO_SPEED_UPLOAD_T - upload speed
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_UPLOAD_T,
curl_off_t *speed);
DESCRIPTION
Pass a pointer to a curl_off_t to receive the average upload speed
that curl measured for the complete upload. Measured in bytes/second.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request */
result = curl_easy_perform(curl);
if(!result) {
curl_off_t speed;
result = curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD_T, &speed);
if(!result) {
printf("Upload speed %" CURL_FORMAT_CURL_OFF_T " bytes/sec\n", speed);
}
}
}
}
AVAILABILITY
Added in curl 7.55.0
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_SPEED_DOWNLOAD_T(3), curl_easy_getinfo(3),
curl_easy_setopt(3)
libcurl 2026-01-08 CURLINFO_SPEED_UPLOAD_T(3)