CURLINFO_PRETRANSFER_TIME(3)                          Library Functions Manual

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

SEE ALSO
       CURLINFO_CONNECT_TIME_T(3), CURLINFO_PRETRANSFER_TIME_T(3),
       curl_easy_getinfo(3), curl_easy_setopt(3)

libcurl                          April 26 2024    CURLINFO_PRETRANSFER_TIME(3)