> When designing this, if you would, give some though about different
> models for allowing a build to be stopped before completion. This
> includes the case where there is only one thread executing the build
> as well as the multi-thread case.
Threads should allways be stopped with Thread.interrupt(). I my self then
will handle the interruption as good as possible. According to the book
"Concurrent Programmin in Java" written by Doug Lea you could try :
class Terminator {
// Try to kill; return true if known to be dead
static boolean terminate(Thread t, long maxWaitToDie) {
if (!t.isAlive()) return true; // already dead
// phase 1 -- graceful cancellation
t.interrupt();
try {
t.join(maxWaitToDie);
}
catch(InetrruptException e {
}
if (!t.isAlive()) return true; // success
// phase 2 -- trap all security checks
theSecurityMgr.denyAllChecksFor(t);
try
t.join(maxWaitToDie);
}
catch(InetrruptException e {
}
if (!t.isAlive()) return true;
// phase 3 -- minimize damage
t.setPriority(Thread.MIN_PRIORITY);
return false;
}
}
Regards
Thomas
