优化代码，性能暴涨

src/org/kne/cloud/network/klalb/VADDRPacket.java

@@ -9,40 +9,34 @@ import java.net.Inet6Address;
 import java.net.UnknownHostException;
 import java.nio.ByteBuffer;
 
+import org.kne.cloud.network.ipv6.Inet6AddressGroup;
+
 public class VADDRPacket extends KLALBPacket {
-	public Inet6Address getVaddr() {
+	private static final int HEADER_LENGTH=18;
+	public Inet6AddressGroup getVaddr() {
 		byte[]b=new byte[16];
-		header.get(1, b);
+		klalbHeader.get(1, b);
 		try {
-			return (Inet6Address) Inet6Address.getByAddress(b);
+			return new Inet6AddressGroup( (Inet6Address) Inet6Address.getByAddress(b),klalbHeader.get(17)&0xff);
 		} catch (UnknownHostException e) {
 			e.printStackTrace();
 		}
 		return null;
 	}
 
-	public VADDRPacket(Inet6Address vaddr) {
-		super(VADDR);
-		header.put(1, vaddr.getAddress());
+	public VADDRPacket(Inet6AddressGroup vaddr) {
+		super(VADDR,HEADER_LENGTH);
+		klalbHeader.put(1, vaddr.getAddress().getAddress());
+		klalbHeader.put(17,(byte) vaddr.getPrefixLength());
 	}
 
 	public VADDRPacket(ByteBuffer bb) {
-		super(bb);
+		super(bb,HEADER_LENGTH);
 	}
 
 	@Override
 	public String toString() {
-		return "VADDR "+getVaddr().getHostAddress();
-	}
-
-	@Override
-	protected int getHeaderSize() {
-		return super.getHeaderSize()+16;
-	}
-
-	@Override
-	public long getLength() {
-		return super.getLength()+16;
+		return "VADDR "+getVaddr();
 	}
 
 }