src/com/wentch/redkale/net/ProtocolServer.java

@@ -9,6 +9,7 @@ import java.io.IOException;
 import java.net.*;
 import java.nio.ByteBuffer;
 import java.nio.channels.*;
+import java.util.*;
 import java.util.concurrent.*;
 
 /**
@@ -23,6 +24,8 @@ public abstract class ProtocolServer {
 
     public abstract void bind(SocketAddress local, int backlog) throws IOException;
 
+    public abstract <T> Set<SocketOption<?>> supportedOptions();
+
     public abstract <T> void setOption(SocketOption<T> name, T value) throws IOException;
 
     public abstract void accept();
@@ -67,6 +70,11 @@ public abstract class ProtocolServer {
             this.serverChannel.setOption(name, value);
         }
 
+        @Override
+        public <T> Set<SocketOption<?>> supportedOptions() {
+            return this.serverChannel.supportedOptions();
+        }
+
         @Override
         public void accept() {
             final DatagramChannel serchannel = this.serverChannel;
@@ -139,6 +147,11 @@ public abstract class ProtocolServer {
             this.serverChannel.setOption(name, value);
         }
 
+        @Override
+        public <T> Set<SocketOption<?>> supportedOptions() {
+            return this.serverChannel.supportedOptions();
+        }
+
         @Override
         public void accept() {
             final AsynchronousServerSocketChannel serchannel = this.serverChannel;

src/com/wentch/redkale/net/Server.java

@@ -46,7 +46,7 @@ public abstract class Server {
 
     protected int backlog;
 
-    protected ProtocolServer transport;
+    protected ProtocolServer serverChannel;
 
     protected int capacity;
 
@@ -78,7 +78,7 @@ public abstract class Server {
         this.config = config;
         this.address = new InetSocketAddress(config.getValue("host", "0.0.0.0"), config.getIntValue("port", 80));
         this.charset = Charset.forName(config.getValue("charset", "UTF-8"));
-        this.backlog = config.getIntValue("backlog", 10240);
+        this.backlog = config.getIntValue("backlog", 8 * 1024);
         this.readTimeoutSecond = config.getIntValue("readTimeoutSecond", 0);
         this.writeTimeoutSecond = config.getIntValue("writeTimeoutSecond", 0);
         this.capacity = config.getIntValue("capacity", 8 * 1024);
@@ -117,12 +117,13 @@ public abstract class Server {
         this.context = this.createContext();
         this.prepare.init(this.context, config);
         if (this.watch != null) this.watch.inject(this.prepare);
-        this.transport = ProtocolServer.create(this.protocol, context);
-        this.transport.open();
-        transport.setOption(StandardSocketOptions.SO_REUSEADDR, true);
-        transport.setOption(StandardSocketOptions.SO_RCVBUF, 8 * 1024);
-        transport.bind(address, backlog);
-        transport.accept();
+        this.serverChannel = ProtocolServer.create(this.protocol, context);
+        this.serverChannel.open();
+        if (this.serverChannel.supportedOptions().contains(StandardSocketOptions.TCP_NODELAY)) {
+            this.serverChannel.setOption(StandardSocketOptions.TCP_NODELAY, true);
+        }
+        serverChannel.bind(address, backlog);
+        serverChannel.accept();
         final String threadName = "[" + Thread.currentThread().getName() + "] ";
         logger.info(threadName + this.getClass().getSimpleName() + "." + protocol + " listen: " + address
                 + ", threads: " + threads + ", bufferCapacity: " + capacity + ", bufferPoolSize: " + bufferPoolSize + ", responsePoolSize: " + responsePoolSize
@@ -135,7 +136,7 @@ public abstract class Server {
         long s = System.currentTimeMillis();
         logger.info(this.getClass().getSimpleName() + "-" + this.protocol + " shutdowning");
         try {
-            this.transport.close();
+            this.serverChannel.close();
         } catch (Exception e) {
         }
         logger.info(this.getClass().getSimpleName() + "-" + this.protocol + " shutdow prepare servlet");

src/com/wentch/redkale/net/Transport.java

@@ -26,6 +26,19 @@ public final class Transport {
 
     protected static final int MAX_POOL_LIMIT = Runtime.getRuntime().availableProcessors() * 16;
 
+    protected static final boolean supportTcpNoDelay;
+
+    static {
+        boolean tcpNoDelay = false;
+        try {
+            AsynchronousSocketChannel channel = AsynchronousSocketChannel.open();
+            tcpNoDelay = channel.supportedOptions().contains(StandardSocketOptions.TCP_NODELAY);
+            channel.close();
+        } catch (Exception e) {
+        }
+        supportTcpNoDelay = tcpNoDelay;
+    }
+
     protected final String name;
 
     protected final int bufferPoolSize;
@@ -156,7 +169,10 @@ public final class Transport {
                                 if (conn.isOpen()) return conn;
                             }
                         }
-                        if (channel == null) channel = AsynchronousSocketChannel.open(group);
+                        if (channel == null) {
+                            channel = AsynchronousSocketChannel.open(group);
+                            if (supportTcpNoDelay) channel.setOption(StandardSocketOptions.TCP_NODELAY, true);
+                        }
                         try {
                             channel.connect(addr).get(2, TimeUnit.SECONDS);
                             break;
@@ -167,6 +183,7 @@ public final class Transport {
                     }
                 } else {
                     channel = AsynchronousSocketChannel.open(group);
+                    if (supportTcpNoDelay) channel.setOption(StandardSocketOptions.TCP_NODELAY, true);
                     channel.connect(addr).get(2, TimeUnit.SECONDS);
                 }
                 if (channel == null) return null;