curl / libcurl / API / curl_easy_getinfo / CURLINFO_QUEUE_TIME_T

CURLINFO_QUEUE_TIME_T explained

Name

CURLINFO_QUEUE_TIME_T - time this transfer was queued

Synopsis

#include <curl/curl.h>
 
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_QUEUE_TIME_T,
                           curl_off_t *timep);

Description

Pass a pointer to a curl_off_t to receive the time, in microseconds, this transfer was held in a waiting queue before it started "for real". A transfer might be put in a queue if after getting started, it cannot create a new connection etc due to set conditions and limits imposed by the application.

See also the TIMES overview in the curl_easy_getinfo 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 queue;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    res = curl_easy_perform(curl);
    if(CURLE_OK == res) {
      res = curl_easy_getinfo(curl, CURLINFO_QUEUE_TIME_T, &queue);
      if(CURLE_OK == res) {
        printf("Queued: %" CURL_FORMAT_CURL_OFF_T ".%06ld us", queue / 1000000,
               (long)(queue % 1000000));
      }
    }
    /* always cleanup */
    curl_easy_cleanup(curl);
  }
}

Availability

Added in curl 8.6.0

Return value

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.