Re: selecting sockets and serials

[Jorge <xxopxe@...>]

On 17/10/12 18:06, Sam Roberts wrote:
> Diego doesn't want to document capabilities that don't work the same
> on linux and windows.
Sounds fair.

> Btw, you cannot meaningfully select() on files in linux. You can
> select from them, but they always
> return readable,so selecting on an io object, or the fd from an io
> object probably doesn't do what you want.

Hm, i must be missing something (again). I've done

local fd = nixio.open('/dev/ttyUSB0', nixio.open_flags('rdwr', 'nonblock'))

and fed it to nixio.poll(), and i'm pretty sure it hasn't busy waited on 
me. I would've noticed that on a OpenMoko (ARMv4) or an Asus520gu wifi 
router  :)

Anotther example of stuff i've done and doesn't misbehave:

local fd = nixio.open('/dev/input/mice', nixio.open_flags('rdonly', 'sync'))

I know those flags arent available in Lua's io.open(), but that is not 
select's fault. Perhaps it's a select() vs poll() thing (don't think so)?

Jorge