CURLINFO_NAMELOOKUP_TIME_T.3 2.4 KB

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  25. .TH CURLINFO_NAMELOOKUP_TIME_T 3 "28 Apr 2018" libcurl libcurl
  26. .SH NAME
  27. CURLINFO_NAMELOOKUP_TIME_T \- get the name lookup time in microseconds
  28. .SH SYNOPSIS
  29. .nf
  30. #include <curl/curl.h>
  31. CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_NAMELOOKUP_TIME_T,
  32. curl_off_t *timep);
  33. .fi
  34. .SH DESCRIPTION
  35. Pass a pointer to a curl_off_t to receive the total time in microseconds
  36. from the start until the name resolving was completed.
  37. When a redirect is followed, the time from each request is added together.
  38. See also the TIMES overview in the \fIcurl_easy_getinfo(3)\fP man page.
  39. .SH PROTOCOLS
  40. All
  41. .SH EXAMPLE
  42. .nf
  43. curl = curl_easy_init();
  44. if(curl) {
  45. curl_off_t namelookup;
  46. curl_easy_setopt(curl, CURLOPT_URL, url);
  47. res = curl_easy_perform(curl);
  48. if(CURLE_OK == res) {
  49. res = curl_easy_getinfo(curl, CURLINFO_NAMELOOKUP_TIME_T, &namelookup);
  50. if(CURLE_OK == res) {
  51. printf("Time: %" CURL_FORMAT_CURL_OFF_T ".%06ld", namelookup / 1000000,
  52. (long)(namelookup % 1000000));
  53. }
  54. }
  55. /* always cleanup */
  56. curl_easy_cleanup(curl);
  57. }
  58. .fi
  59. .SH AVAILABILITY
  60. Added in 7.61.0
  61. .SH RETURN VALUE
  62. Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
  63. .SH "SEE ALSO"
  64. .BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), " CURLINFO_NAMELOOKUP_TIME "(3)"