CURLINFO_PRETRANSFER_TIME − get the time until the file transfer start
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRETRANSFER_TIME, double *timep);
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 includes all pre-transfer commands and negotiations that are specific to the particular protocol(s) involved. It does not involve the sending of the protocol- specific request that triggers a transfer.
See also the TIMES overview in the curl_easy_getinfo(3) man page.
All
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);
}
Added in 7.4.1
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.