AsynchronousChannelGroupImpl(AsynchronousChannelProvider provider, ThreadPool pool) {
super(provider);
this.pool = pool;
if (pool.isFixedThreadPool()) {
taskQueue = new ConcurrentLinkedQueue<Runnable>();
} else {
taskQueue = null; // not used
}
// use default thread factory as thread should not be visible to
// application (it doesn't execute completion handlers).
this.timeoutExecutor =
(ScheduledThreadPoolExecutor)
Executors.newScheduledThreadPool(1, ThreadPool.defaultThreadFactory());
this.timeoutExecutor.setRemoveOnCancelPolicy(true);
}
final boolean isFixedThreadPool() {
return pool.isFixedThreadPool();
}