[5206] in java-interest
Can you write a selfish thread that does graphics?
daemon@ATHENA.MIT.EDU (Cay Horstmann)
Thu Feb 1 23:13:30 1996
From: Cay Horstmann <horstman@jupiter.SJSU.EDU>
To: "'java-interest@java.sun.com'" <java-interest@java.sun.com>
Date: Wed, 31 Jan 1996 21:54:34 -0800
I tried to write a graphical version of the "selfish thread" program in the
Java tutorial, where the selfish thread doesn't call sleep() but waits in a
loop, then repaints itself, then goes back to a busy loop, all 1000 times.
This is on Solaris where the text-based "selfish thread" program clearly
shows that the selfish thread doesn't give up control once it is running.
But in graphics mode it wasn't all that selfish--it time sliced just fine.
Hence my question: Does a call to one of the graphics routines
(in my case g.fillOval(...)) give another thread a chance to butt in? Is
that well-defined or just an artifact of the Solaris implementation?
Cay
horstman@cs.sjsu.edu
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