protected void implClose() throws IOException {
synchronized (closeLock) {
if (closed) return;
closed = true;
// Deregister channels
for (int i = channelOffset; i < totalChannels; i++) {
SelectionKeyImpl ski = channelArray[i];
assert (ski.getIndex() != -1);
ski.setIndex(-1);
deregister(ski);
SelectableChannel selch = channelArray[i].channel();
if (!selch.isOpen() && !selch.isRegistered()) ((SelChImpl) selch).kill();
}
implCloseInterrupt();
pollWrapper.free();
pollWrapper = null;
selectedKeys = null;
channelArray = null;
totalChannels = 0;
}
}
