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curl/docs/libcurl/opts/CURLINFO_STARTTRANSFER_TIME.3
Daniel Stenberg 44c9884552
CURLINFO docs: mention that in redirects times are added
Suggested-by: Brandon Dong
Fixes #4250
Closes #4269
2019-08-28 00:03:12 +02:00

64 lines
2.4 KiB
Groff

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.TH CURLINFO_STARTTRANSFER_TIME 3 "28 Aug 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
.SH NAME
CURLINFO_STARTTRANSFER_TIME \- get the time until the first byte is received
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_STARTTRANSFER_TIME, double *timep);
.SH DESCRIPTION
Pass a pointer to a double to receive the time, in seconds, it took from the
start until the first byte is received by libcurl. This includes
\fICURLINFO_PRETRANSFER_TIME(3)\fP 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 \fIcurl_easy_getinfo(3)\fP man page.
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
curl = curl_easy_init();
if(curl) {
double start;
curl_easy_setopt(curl, CURLOPT_URL, url);
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
res = curl_easy_getinfo(curl, CURLINFO_STARTTRANSFER_TIME, &start);
if(CURLE_OK == res) {
printf("Time: %.1f", start);
}
}
/* always cleanup */
curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.9.2
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), " CURLINFO_STARTTRANSFER_TIME_T "(3)"