[BRLTTY] Pure python file descriptor watcher code for BrlAPI?

[Mario Lang]

Samuel Thibault <samuel.thibault at ens-lyon.org> writes:

> Mario Lang, le Sun 24 Feb 2008 09:45:21 +0100, a écrit :
>> Orca uses glib to add a callback for when some data arrives
>> at the BrlAPI file descriptor.  This is very useful to implement
>> a callback driven system for receiving brlapi keypresses.
>> Does anyone have code for doing this in pure python, without a dependency
>> on glib?
>
> The problem is: when should callbacks be called?
>
> In an event-driven glib application, it's easy: it's during the main
> loop.
>
> In a general python application, which is not necessarily event-driven,
> when would that be?  The problem here is about concurrency with what
> your application is currently doing, and is just the same as if you were
> just starting a thread that keeps calling brlapi.readKey(), which then
> runs concurrently with the main thread.

Right, I realized this after I sent off this mail.  I didnt think
it all the way through.

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