Name: vm36539 Date: 03/09/99
Hey, Java People.
When writing concurrent code, it would just make life so much
easier to have a method called "whenstopped()" or something
similar in java.lang.Thread java.lang.Runnable that the JVM
calls when it is finished. This would be REALLY useful when
writing a ReplicatedWorkers class and I think it would only
add one line of code to the Java source. The primary purpose
would be for overriding the method in extended classes (such
as the Worker class in the Replicated Workers problem...are you
familiar with this problem: there are several workers and a
static FIFO workpool. They pick up jobs from the workpool and
try to pick up another job once they have finished the one they
had. If they don't have any more jobs in the workpool, they
add themselves to a worker Queue. Classically, a thread is
wasted as a "foreman" who monitors the other threads and hands
out the jobs.) Removal of the foreman thread is what I am trying
to accomplish and this would be much easier with this method
built in. So, how about it?
When I write the code, maybe this sort of class could be built
in to Java since it really increases performance and without it,
programs with too many threads will crash quickly (especially
on supercomputers, I have found...especially convexes). If you
would be willing to chew on my class, I would be honored to
sacrifice any ownership of the class short of paying for my own
use of it :-) (copyrights, etc.)
One more thing. This is a little harder. Why not stick in a
method to change a Thread's runnable post-creation and post-run?
This would also simplify just about everything I do, and I don't
think it would be too tough to code, but you'd have to stick
in a few "throws"'s in the method call, I think.
Thank you so much!
-- Ali Mohammad.
Computer Scientist/Mathematician/Physicist/Computer Engineer
(Review ID: 54691)