curl/docs/libcurl/opts/CURLINFO_PRETRANSFER_TIME.md
Daniel Stenberg 8442c24c9a
CURLINFO: remove 'get' and 'get the' from each short desc
The short descriptions describe the data each info retrieves. The info
itself does not 'get' the data.

This simplifies and shortens the descriptions and make them more
consistent.

Closes #19406
2025-11-08 17:05:55 +01:00

1.7 KiB

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

NAME

CURLINFO_PRETRANSFER_TIME - time to 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%

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%

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).