How to use

WriteTimeoutHandler$TimeoutCanceller

in

org.jboss.netty.handler.timeout

@Override
public void writeRequested(ChannelHandlerContext ctx, MessageEvent e)
    throws Exception {
  long timeoutMillis = getTimeoutMillis(e);
  if (timeoutMillis > 0) {
    // Set timeout only when getTimeoutMillis() returns a positive value.
    ChannelFuture future = e.getFuture();
    final Timeout timeout = timer.newTimeout(
        new WriteTimeoutTask(ctx, future),
        timeoutMillis, TimeUnit.MILLISECONDS);
    future.addListener(new TimeoutCanceller(timeout));
  }
  super.writeRequested(ctx, e);
}