curl-curl/docs/libcurl/opts/CURLINFO_SPEED_DOWNLOAD.md

c	SPDX-License-Identifier	Title	Section	Source	See-also	Protocol	Added-in
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.	curl	CURLINFO_SPEED_DOWNLOAD	3	libcurl	CURLINFO_SIZE_UPLOAD_T (3) CURLINFO_SPEED_UPLOAD (3) curl_easy_getinfo (3) curl_easy_setopt (3)	All	7.4.1

NAME

CURLINFO_SPEED_DOWNLOAD - 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%

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

DEPRECATED

Deprecated since 7.55.0.

%AVAILABILITY%

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).