This is always non-NULL. If it wasn't set already, then this will
return the default path.
+=head2 get-state
+
+ get-state
+
+This returns the current state as an opaque integer. This is
+only useful for printing debug and internal error messages.
+
+For more information on states, see L<guestfs(3)>.
+
=head2 get-verbose
get-verbose
This returns the verbose messages flag.
+=head2 is-busy
+
+ is-busy
+
+This returns true iff this handle is busy processing a command
+(in the C<BUSY> state).
+
+For more information on states, see L<guestfs(3)>.
+
+=head2 is-config
+
+ is-config
+
+This returns true iff this handle is being configured
+(in the C<CONFIG> state).
+
+For more information on states, see L<guestfs(3)>.
+
=head2 is-dir
is-dir path
See also C<stat>.
+=head2 is-launching
+
+ is-launching
+
+This returns true iff this handle is launching the subprocess
+(in the C<LAUNCHING> state).
+
+For more information on states, see L<guestfs(3)>.
+
+=head2 is-ready
+
+ is-ready
+
+This returns true iff this handle is ready to accept commands
+(in the C<READY> state).
+
+For more information on states, see L<guestfs(3)>.
+
=head2 kill-subprocess
kill-subprocess