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e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
71 lines
1.6 KiB
Markdown
71 lines
1.6 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLINFO_PRETRANSFER_TIME
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_CONNECT_TIME_T (3)
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- CURLINFO_PRETRANSFER_TIME_T (3)
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- curl_easy_getinfo (3)
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- curl_easy_setopt (3)
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Protocol:
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- All
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---
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# NAME
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CURLINFO_PRETRANSFER_TIME - get the time until the file transfer start
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRETRANSFER_TIME,
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double *timep);
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~~~
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# DESCRIPTION
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Pass a pointer to a double to receive the time, in seconds, it took from the
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start until the file transfer is just about to begin.
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This time-stamp includes all pre-transfer commands and negotiations that are
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specific to the particular protocol(s) involved. It includes the sending of
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the protocol-specific instructions that trigger a transfer.
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When a redirect is followed, the time from each request is added together.
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See also the TIMES overview in the curl_easy_getinfo(3) man page.
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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double pretransfer;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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res = curl_easy_perform(curl);
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if(CURLE_OK == res) {
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res = curl_easy_getinfo(curl, CURLINFO_PRETRANSFER_TIME, &pretransfer);
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if(CURLE_OK == res) {
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printf("Time: %.1f", pretransfer);
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}
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}
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.4.1
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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