Re: GSHorizontalTypesetter flooding the log

[Fred Kiefer]

On 30.01.2012 23:17, Philippe Roussel wrote:
> Le lundi 30 janvier 2012 à 22:57 +0100, Philippe Roussel a écrit :
> > Hi,
> >
> > Sometimes when I run my probably buggy application the console is
> > flooded with the following log :
> >
> > GSHorizontalTypesetter - Glyph generation was triggered for a layout
> > manager while the text storage it was attached to had unprocessed
> > editing. This is not allowed. Glyph generation may be triggered only at
> > points where calls to -beginEditing and -endEditing are balanced.
>
> Nevermind, this probably comes from running code in a thread...
>
> Sorry about the noise.

Not sure whether this sufficiently explain this back trace. In 
NSStringDrawing we use (recursive) locks to protect the text layout 
objects. If we can get one of the text storages to change its text while 
it is actually used for layout, then this is a serious problem that 
needs looking into. Even when it only happens with multiple threads.
Is there any example code that allows to reproduce this behaviour?