io.jpower.kcp.example.rtt.KcpRttServer Maven / Gradle / Ivy
package io.jpower.kcp.example.rtt;
import io.jpower.kcp.example.echo.EchoServerHandler;
import io.jpower.kcp.netty.ChannelOptionHelper;
import io.jpower.kcp.netty.UkcpChannel;
import io.jpower.kcp.netty.UkcpChannelOption;
import io.jpower.kcp.netty.UkcpServerChannel;
import io.netty.bootstrap.UkcpServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
/**
* Measures RTT(Round-trip time) for KCP.
*
* Receives a message from client and sends a response.
*
* @author szh
*/
public class KcpRttServer {
static final int CONV = Integer.parseInt(System.getProperty("conv", "10"));
static final int PORT = Integer.parseInt(System.getProperty("port", "8009"));
public static void main(String[] args) throws Exception {
// Configure the server.
EventLoopGroup group = new NioEventLoopGroup();
try {
UkcpServerBootstrap b = new UkcpServerBootstrap();
b.group(group)
.channel(UkcpServerChannel.class)
.childHandler(new ChannelInitializer() {
@Override
public void initChannel(UkcpChannel ch) throws Exception {
ChannelPipeline p = ch.pipeline();
p.addLast(new KcpRttServerHandler());
}
});
ChannelOptionHelper.nodelay(b, true, 20, 2, true)
.childOption(UkcpChannelOption.UKCP_MTU, 512);
// Start the server.
ChannelFuture f = b.bind(PORT).sync();
// Wait until the server socket is closed.
f.channel().closeFuture().sync();
} finally {
// Shut down all event loops to terminate all threads.
group.shutdownGracefully();
}
}
}