It seems that the function 'justE' caused my problem. If I remove that, replacing the section at issue with exitE = fmap esc ky where
esc k = case k of Char '\ESC' -> exitSuccess _ -> nop
then the program works. However, there is a large
random delay, sometimes measured in seconds, before
processing the events in the second argument of
`mappend`. And it still leaks space. Any advice?
(all this is with reactive-0.9.6 and ghc 6.10.1)
Thanks,
Balazs
On Tue, Dec 2, 2008 at 1:58 PM, Balazs Komuves
Dear All,
I'm trying to get my hands wet with the reactive library, but already the simplest example I cooked up is failing to work properly (and leaks memory, and uses relatively lots of cpu time).
The problem appears when I try to merge my two events with `mappend`. One event should exit on pressing ESC, the other draws colored circles on pressing the left mouse button. They work correctly separately.
Could somebody explain me what's happening, or whether I'm making a basic mistake?
The code is below, I hope the formatting survives the various email systems. I don't know if that matters or not, but I'm using OS X.
Thanks, Balazs