luasocket and selecting from files.

[Jorge <xxopxe@...>]

Hi everyone,

I'm trying to use luasocket's select() to read from files, under Linux. 
As far as can see, it is possible now trough judicious use of setfd() 
(and dirty()?). But I do not see where i can get that fd from (io.* uses 
a opaque thing for files).
Is there any working code out there doing this?