protected void implCloseSelectableChannel() throws IOException {
synchronized (stateLock) {
if (state != ST_KILLED) nd.preClose(fd);
long th = thread;
if (th != 0) NativeThread.signal(th);
if (!isRegistered()) kill();
}
}
public void kill() throws IOException {
synchronized (stateLock) {
if (state == ST_KILLED) return;
if (state == ST_UNINITIALIZED) {
state = ST_KILLED;
return;
}
assert !isOpen() && !isRegistered();
nd.close(fd);
state = ST_KILLED;
}
}