NAME

CURLINFO_PRETRANSFER_TIME - get the time until the file transfer start

SYNOPSIS

#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRETRANSFER_TIME,


                           double *timep);

DESCRIPTION

Pass a pointer to a double to receive the time, in seconds, it took from the start until the file transfer is just about to begin.

This time-stamp includes all pre-transfer commands and negotiations that are specific to the particular protocol(s) involved. It includes the sending of the protocol- specific protocol instructions that triggers a transfer.

When a redirect is followed, the time from each request is added together.

See also the TIMES overview in the curl_easy_getinfo(3) man page.

PROTOCOLS

All

EXAMPLE

curl = curl_easy_init();
if(curl) {


  double pretransfer;


  curl_easy_setopt(curl, CURLOPT_URL, url);


  res = curl_easy_perform(curl);


  if(CURLE_OK == res) {


    res = curl_easy_getinfo(curl, CURLINFO_PRETRANSFER_TIME, &pretransfer);


    if(CURLE_OK == res) {


      printf("Time: %.1f", pretransfer);


    }


  }


  /* always cleanup */


  curl_easy_cleanup(curl);
}

AVAILABILITY

Added in 7.4.1

RETURN VALUE

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