CURLINFO_QUEUE_TIME_T - time this transfer was queued

Added in curl 8.6.0

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(3) man page.

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); } }

CURLINFO_QUEUE_TIME_T - time this transfer was queued

This functionality affects all supported protocols

curl_easy_getinfo(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).

CURLINFO_STARTTRANSFER_TIME_T(3), CURLOPT_TIMEOUT(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2025-06-16 CURLINFO_QUEUE_TIME_T(3)

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