CURLINFO_STARTTRANSFER_TIME_T(3) Library Functions Manual
NAME
CURLINFO_STARTTRANSFER_TIME_T - get the time until the first byte is
received
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_STARTTRANSFER_TIME_T,
curl_off_t *timep);
DESCRIPTION
Pass a pointer to a curl_off_t to receive the time, in microseconds, it
took from the start until the first byte is received by libcurl. This
includes CURLINFO_PRETRANSFER_TIME_T(3) and also the time the server
needs to calculate the result.
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
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_off_t start;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
res = curl_easy_getinfo(curl, CURLINFO_STARTTRANSFER_TIME_T, &start);
if(CURLE_OK == res) {
printf("Time: %" CURL_FORMAT_CURL_OFF_T ".%06ld", start / 1000000,
(long)(start % 1000000));
}
}
/* always cleanup */
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 7.61.0
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_STARTTRANSFER_TIME(3), CURLOPT_TIMEOUT(3),
curl_easy_getinfo(3), curl_easy_setopt(3)
libcurl 2025-02-08 CURLINFO_STARTTRANSFER_TIME_T(3)
curl 8.12.0 - Generated Mon Feb 10 16:02:32 CST 2025