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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al. SPDX-License-Identifier: curl Title: CURLINFO_PRETRANSFER_TIME Section: 3 Source: libcurl See-also:

• CURLINFO_CONNECT_TIME_T (3)
• CURLINFO_PRETRANSFER_TIME_T (3)
• curl_easy_getinfo (3)
• curl_easy_setopt (3)

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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.