private void init(int capacity) throws IllegalArgumentException {
System.out.println("WaitFreeReadWriteQueue init");
if (capacity <= 0)
throw new IllegalArgumentException("maximum cannot be less than or equal to 0");
this.emptySem = new SemHolder(capacity);
this.fullSem = new SemHolder(0);
this.memArea = ImmortalMemory.instance();
this.theQueue = this.memArea.newObjectArray(capacity + 1);
this.queueSize = (capacity + 1);
}
/** Return an instance of a DistributedRoundRobinScheduler */
public static DistributedRoundRobinScheduler instance() {
if (instance == null) {
ImmortalMemory.instance()
.enter(
new Runnable() {
public void run() {
instance = new DistributedRoundRobinScheduler();
}
});
}
return instance;
}