quickjs-tart

quickjs-based runtime for wallet-core logic
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CURLINFO_PRETRANSFER_TIME.md (1750B)

      1 ---
      2 c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      3 SPDX-License-Identifier: curl
      4 Title: CURLINFO_PRETRANSFER_TIME
      5 Section: 3
      6 Source: libcurl
      7 See-also:
      8   - CURLINFO_CONNECT_TIME_T (3)
      9   - CURLINFO_PRETRANSFER_TIME_T (3)
     10   - curl_easy_getinfo (3)
     11   - curl_easy_setopt (3)
     12 Protocol:
     13   - All
     14 Added-in: 7.4.1
     15 ---
     16 
     17 # NAME
     18 
     19 CURLINFO_PRETRANSFER_TIME - get the time until the file transfer start
     20 
     21 # SYNOPSIS
     22 
     23 ~~~c
     24 #include <curl/curl.h>
     25 
     26 CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRETRANSFER_TIME,
     27                            double *timep);
     28 ~~~
     29 
     30 # DESCRIPTION
     31 
     32 Pass a pointer to a double to receive the time, in seconds, it took from the
     33 start until the file transfer is just about to begin.
     34 
     35 This time-stamp includes all pre-transfer commands and negotiations that are
     36 specific to the particular protocol(s) involved. It includes the sending of
     37 the protocol-specific instructions that trigger a transfer.
     38 
     39 When a redirect is followed, the time from each request is added together.
     40 
     41 See also the TIMES overview in the curl_easy_getinfo(3) man page.
     42 
     43 # %PROTOCOLS%
     44 
     45 # EXAMPLE
     46 
     47 ~~~c
     48 int main(void)
     49 {
     50   CURL *curl = curl_easy_init();
     51   if(curl) {
     52     CURLcode res;
     53     double pretransfer;
     54     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     55     res = curl_easy_perform(curl);
     56     if(CURLE_OK == res) {
     57       res = curl_easy_getinfo(curl, CURLINFO_PRETRANSFER_TIME, &pretransfer);
     58       if(CURLE_OK == res) {
     59         printf("Time: %.1f", pretransfer);
     60       }
     61     }
     62     /* always cleanup */
     63     curl_easy_cleanup(curl);
     64   }
     65 }
     66 ~~~
     67 
     68 # %AVAILABILITY%
     69 
     70 # RETURN VALUE
     71 
     72 curl_easy_getinfo(3) returns a CURLcode indicating success or error.
     73 
     74 CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
     75 libcurl-errors(3).