@Override public void open(final InetAddress nicAddress, final int port, final int maxBufferSize) throws IOException { stopped = false; executor = Executors.newFixedThreadPool(maxConnections); final ServerSocketChannel serverSocketChannel = ServerSocketChannel.open(); serverSocketChannel.configureBlocking(false); if (maxBufferSize > 0) { serverSocketChannel.setOption(StandardSocketOptions.SO_RCVBUF, maxBufferSize); final int actualReceiveBufSize = serverSocketChannel.getOption(StandardSocketOptions.SO_RCVBUF); if (actualReceiveBufSize < maxBufferSize) { logger.warn("Attempted to set Socket Buffer Size to " + maxBufferSize + " bytes but could only set to " + actualReceiveBufSize + "bytes. You may want to consider changing the Operating System's " + "maximum receive buffer"); } } serverSocketChannel.socket().bind(new InetSocketAddress(nicAddress, port)); selector = Selector.open(); serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT); }
/** * Adds a server socket channel for listening to connections. * * @param nicIPAddress - if null binds to wildcard address * @param port - port to bind to * @param receiveBufferSize - size of OS receive buffer to request. If less * than 0 then will not be set and OS default will win. * @throws IOException if unable to add socket */ public void addServerSocket(final InetAddress nicIPAddress, final int port, final int receiveBufferSize) throws IOException { final ServerSocketChannel ssChannel = ServerSocketChannel.open(); ssChannel.configureBlocking(false); if (receiveBufferSize > 0) { ssChannel.setOption(StandardSocketOptions.SO_RCVBUF, receiveBufferSize); final int actualReceiveBufSize = ssChannel.getOption(StandardSocketOptions.SO_RCVBUF); if (actualReceiveBufSize < receiveBufferSize) { LOGGER.warn(this + " attempted to set TCP Receive Buffer Size to " + receiveBufferSize + " bytes but could only set to " + actualReceiveBufSize + "bytes. You may want to consider changing the Operating System's " + "maximum receive buffer"); } } ssChannel.setOption(StandardSocketOptions.SO_REUSEADDR, true); ssChannel.bind(new InetSocketAddress(nicIPAddress, port)); ssChannel.register(serverSocketSelector, SelectionKey.OP_ACCEPT); }
/** * {@inheritDoc} * * Forwards to {@link #delegate}. */ @Override public <U> U getOption(SocketOption<U> name) throws IOException { return delegate.getOption(name); }
public <T> T getOption(SocketOption<T> name) throws IOException { return delegate.getOption(name); } public Set<SocketOption<?>> supportedOptions() { return delegate.supportedOptions(); }