EpollServerDomainSocketChannel Class — netty Architecture

Source Code

transport-classes-epoll/src/main/java/io/netty/channel/epoll/EpollServerDomainSocketChannel.java lines 30–107

public final class EpollServerDomainSocketChannel extends AbstractEpollServerChannel
        implements ServerDomainSocketChannel {
    private static final InternalLogger logger = InternalLoggerFactory.getInstance(
            EpollServerDomainSocketChannel.class);

    private final EpollServerChannelConfig config = new EpollServerChannelConfig(this);
    private volatile DomainSocketAddress local;

    public EpollServerDomainSocketChannel() {
        super(newSocketDomain(), false);
    }

    public EpollServerDomainSocketChannel(int fd) {
        super(fd);
    }

    public EpollServerDomainSocketChannel(int fd, boolean active) {
        super(new LinuxSocket(fd), active);
    }

    EpollServerDomainSocketChannel(LinuxSocket fd) {
        super(fd);
    }

    EpollServerDomainSocketChannel(LinuxSocket fd, boolean active) {
        super(fd, active);
    }

    @Override
    protected Channel newChildChannel(int fd, byte[] addr, int offset, int len) throws Exception {
        return new EpollDomainSocketChannel(this, new Socket(fd));
    }

    @Override
    protected DomainSocketAddress localAddress0() {
        return local;
    }

    @Override
    protected void doBind(SocketAddress localAddress) throws Exception {
        socket.bind(localAddress);
        socket.listen(config.getBacklog());
        local = (DomainSocketAddress) localAddress;
        active = true;
    }

    @Override
    protected void doClose() throws Exception {
        try {
            super.doClose();
        } finally {
            DomainSocketAddress local = this.local;
            if (local != null) {
                // Delete the socket file if possible.
                File socketFile = new File(local.path());
                boolean success = socketFile.delete();
                if (!success && logger.isDebugEnabled()) {
                    logger.debug("Failed to delete a domain socket file: {}", local.path());
                }
            }
        }
    }

    @Override
    public EpollServerChannelConfig config() {
        return config;
    }

    @Override
    public DomainSocketAddress remoteAddress() {
        return (DomainSocketAddress) super.remoteAddress();
    }

    @Override
    public DomainSocketAddress localAddress() {
        return (DomainSocketAddress) super.localAddress();
    }
}