CURLINFO_P...ANSFER_TIME(3) Library Functions ManualCURLINFO_P...ANSFER_TIME(3)
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 to-
gether.
See also the TIMES overview in the curl_easy_getinfo(3) man page.
PROTOCOLS
This functionality affects all supported protocols
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 curl 7.4.1
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_CONNECT_TIME_T(3), CURLINFO_PRETRANSFER_TIME_T(3),
curl_easy_getinfo(3), curl_easy_setopt(3)
libcurl 2026-07-12 CURLINFO_P...ANSFER_TIME(3)
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