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CURLINFO_S...ANSFER_TIME(3) Library Functions Manual CURLINFO_S...ANSFER_TIME(3) NAME CURLINFO_STARTTRANSFER_TIME - time to first byte received SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_STARTTRANSFER_TIME, double *timep); DESCRIPTION Pass a pointer to a double to receive the time, in seconds, it took from the start until the first byte is received by libcurl. This includes CURLINFO_PRETRANSFER_TIME(3) and also the time the server needs to calcu- late the result. When a redirect is followed, the time from each request is added together. See also the TIMES overview in the curl_easy_getinfo(3) man page. PROTOCOLS This functionality affects all supported protocols EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; double start; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); result = curl_easy_perform(curl); if(result == CURLE_OK) { result = curl_easy_getinfo(curl, CURLINFO_STARTTRANSFER_TIME, &start); if(result == CURLE_OK) { printf("Time: %.1f", start); } } /* always cleanup */ curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.9.2 RETURN VALUE 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). SEE ALSO CURLINFO_STARTTRANSFER_TIME_T(3), CURLOPT_TIMEOUT(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2026-06-11 CURLINFO_S...ANSFER_TIME(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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