ares_fds - Get file descriptors to select on for name service
struct timeval *ares_timeout(ares_channel channel,
struct timeval *maxtv, struct timeval *tvbuf)
The ares_timeout function determines the maximum time for which the
caller should wait before invoking ares_process(3) to process timeouts.
The parameter maxtv specifies a existing maximum timeout, or NULL if
the caller does not wish to apply a maximum timeout. The parameter
tvbuf must point to a writable buffer of type struct timeval. It is
valid for maxtv and tvbuf to have the same value.
If no queries have timeouts pending sooner than the given maximum
timeout, ares_timeout returns the value of maxtv; otherwise
ares_timeout stores the appropriate timeout value into the buffer
pointed to by tvbuf and returns the value of tvbuf.
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.
25 July 1998