Hi, I'd like to ask how other people use c-ares with respect to handling timeouts.
In general, we would like to tell c-ares "resolve foo.bar and if it takes more than N seconds, just cancel the request". Since there is no explicit API to cancel a particular request on-demand (from our event loop, perhaps), we rely on calling "ares_process_fd(channel, ARES_SOCKET_BAD, ARES_SOCKET_BAD)" every N seconds, where N is the value of ARES_OPT_TIMEOUT. However, this means we need to count the nameservers every time /etc/resolv.conf is updated (might happen esp. in case of a roaming laptop) and adjust the ARES_OPT_TIMEOUT value apropriately. The other way might be to have a single channel per request but that carries overhead as well.. How are others solving the issue? Thank you, Jakub