immediately without waiting for anything. If it returns -1, there's no timeout
at all set.
-An application that uses the multi_socket API SHOULD not use this function, but
+An application that uses the multi_socket API SHOULD NOT use this function, but
SHOULD instead use \fIcurl_multi_setopt(3)\fP and its
\fPCURLMOPT_TIMERFUNCTION\fP option for proper and desired behavior.