File::Redirect::Base - root for vfs providers
Request to mount $data as pseudo-device number $dev_no. Must return object instance that will receive all further operation requests (see below).
Return array of 12-items, in the same format as perl's CORE::stat (see perldoc -f stat) on success, and error number integer on failure.
Tries to open $path with $mode.
On success must return a glob handle,
IO::Scalar object emulating the file.
On failure must return error number integer.
Optional; implements close(2) semantics - on successful operation must return 0, error number integer otherwise.