@Override
public boolean send(Message message, long timeout, TimeUnit unit)
throws SuspendExecution, InterruptedException {
if (message == null) throw new IllegalArgumentException("message is null");
if (isSendClosed()) return true;
if (xfer1(message, true, TIMED, unit.toNanos(timeout)) == null) return true;
if (!Strand.interrupted()) return false;
throw new InterruptedException();
}
protected Message receiveInternal(long timeout, TimeUnit unit)
throws SuspendExecution, InterruptedException {
if (receiveClosed) return null;
Object m = xfer1(null, false, TIMED, unit.toNanos(timeout));
if (m != null || !Strand.interrupted()) {
if (m == CHANNEL_CLOSED) return closeValue();
return (Message) m;
}
throw new InterruptedException();
}