Quoting Justin Mazzola Paluska <jmp@MIT.EDU>:

Hi,

I’m playing with the inotify(7) interface on Linux. When I call inotify_init(), I get back a file descriptor that I’m supposed read from when there are file system events.

What’s the best way to integrate the inotify file descriptor into the Twisted reactor? My question has two subparts:

1. How do I tell Twisted to check my fd for readability? (Is reactor.addReader() all I need?

2. How do I register a callback to my own code when my fd is readable?

All in all, it seems what I really want is something like ProcessProtocol, but without spawning a process. Forgive me if I’ve missed something obvious, but searching google and the gmane mail archives hasn’t turned up anything.

You should have a look at this: http://twistedmatrix.com/trac/browser/sandbox/inotify.py -- Thomas