[BRLTTY] threaded eSpeak driver

[Dave Mielke]

[quoted lines by Nicolas Pitre on 2012/08/15 at 17:29 -0400]

>This issue can be mitigated greatly by making the eSpeak driver speech 
>processing call into a thread of its own. Attached is a patch to make 
>the eSpeak driver threaded.

I rather suspect that a more general solution would be better than dealing with 
each driver on an individual basis.

>Is this enough to ensure the repeated key problem will never happen 
>again?  

No, because any otehr speech driver, or even, I suppose, a slow braille device, 
could cause the same symptoms.

>Maybe the Linux keyboard filter code would benefit from being 
>moved into a thread of its own as well.

Yes, I've often thought that this should be done. I just haven't done it yet.

Are we that the point where we should just assume that Linux has Posix threads, 
even in boot environments?

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