sorry, I lose one line code for the example
curl_easy_setopt(conn->easy, CURLOPT_NOSIGNAL, 1);

add this line, the case return errcode = 6. no problem.

But in this case, the total time is still 0. here I think libcurl can set the total time when errcode = 6 occur instead of totaltime = 0

in Curl_resolv_timeout function:

else if(!hostaddr) {
        failf(data, "Couldn't resolve host '%s'", conn->host.dispname);
        result = CURLE_COULDNT_RESOLVE_HOST;
        /* don't return yet, we need to clean up the timeout first */
      }

---
** [bugs:#1243] when timeout, CURLINFO_TOTAL_TIME is not ok**
**Status:** open
**Created:** Fri Jun 07, 2013 12:46 PM UTC by he qin
**Last Updated:** Fri Jun 21, 2013 01:43 PM UTC
**Owner:** Daniel Stenberg
hi
    When I use the multi handle to process one easy handle, I set 80ms timeout for the easy handle. If timeout occur, I get the CURLINFO_TOTAL_TIME, the result is 0? why not 80ms?
Read the code, I found, when timeout occur, I call 
curl_multi_socket_action(
            multi,
            CURL_SOCKET_TIMEOUT,
            0,
            &still_running);
I see that the CURLINFO_TOTAL_TIME will be update in Curl_done->Curl_pgrsDone. But , as above code, when curl_multi_socket_action was called  use CURL_SOCKET_TIMEOUT as the second arg, curl_multi_socket_action will do nothing....(in multi_socket function , all "if" is false)
If I want to get the realtime for CURLINFO_TOTAL_TIME, how to do ?
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