udp优化

src/main/java/org/redkale/net/AsyncConnection.java

@@ -33,9 +33,9 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
     //SSL
     protected SSLEngine sslEngine;
 
-    protected volatile long readtime;
+    protected volatile long readTime;
 
-    protected volatile long writetime;
+    protected volatile long writeTime;
 
     private Map<String, Object> attributes; //用于存储绑定在Connection上的对象集合
 
@@ -145,11 +145,11 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
     }
 
     public final long getLastReadTime() {
-        return readtime;
+        return readTime;
     }
 
     public final long getLastWriteTime() {
-        return writetime;
+        return writeTime;
     }
 
     public final boolean ssl() {

src/main/java/org/redkale/net/AsyncNioConnection.java

@@ -251,7 +251,7 @@ abstract class AsyncNioConnection extends AsyncConnection {
 
     public void doRead(boolean direct) {
         try {
-            this.readtime = System.currentTimeMillis();
+            this.readTime = System.currentTimeMillis();
             int readCount = 0;
             if (direct) {
                 if (this.readByteBuffer == null) {
@@ -284,7 +284,7 @@ abstract class AsyncNioConnection extends AsyncConnection {
 
     public void doWrite(boolean direct) {
         try {
-            this.writetime = System.currentTimeMillis();
+            this.writeTime = System.currentTimeMillis();
             int totalCount = 0;
             boolean hasRemain = true;
             boolean writeCompleted = true;

src/main/java/org/redkale/net/AsyncNioUdpConnection.java

@@ -13,6 +13,7 @@ import java.util.Set;
 import java.util.concurrent.ConcurrentLinkedDeque;
 import javax.net.ssl.SSLContext;
 import org.redkale.net.AsyncNioUdpProtocolServer.AsyncNioUdpServerChannel;
+import org.redkale.util.Utility;
 
 /**
  *
@@ -149,7 +150,25 @@ class AsyncNioUdpConnection extends AsyncNioConnection {
 
     @Override
     protected int implWrite(ByteBuffer src) throws IOException {
-        return this.channel.send(src, remoteAddress);
+        long now = System.currentTimeMillis();
+        //发送过频会丢包
+        if (clientMode) {
+            if (this.writeTime + 1 > now) {
+                Utility.sleep(1);
+                this.writeTime = System.currentTimeMillis();
+            } else {
+                this.writeTime = now;
+            }
+            return this.channel.send(src, remoteAddress);
+        } else {
+            if (udpServerChannel.writeTime + 1 > now) {
+                Utility.sleep(1);
+                udpServerChannel.writeTime = System.currentTimeMillis();
+            } else {
+                udpServerChannel.writeTime = now;
+            }
+            return this.channel.send(src, remoteAddress);
+        }
     }
 
     @Override
@@ -158,7 +177,7 @@ class AsyncNioUdpConnection extends AsyncNioConnection {
         for (int i = offset; i < end; i++) {
             ByteBuffer buf = srcs[i];
             if (buf.hasRemaining()) {
-                return this.channel.send(buf, remoteAddress);
+                return implWrite(buf);
             }
         }
         return 0;

src/main/java/org/redkale/net/AsyncNioUdpProtocolServer.java

@@ -240,6 +240,8 @@ class AsyncNioUdpProtocolServer extends ProtocolServer {
 
         ByteBufferPool unsafeBufferPool;
 
+        volatile long writeTime;
+
         ConcurrentHashMap<SocketAddress, AsyncNioUdpConnection> connections = new ConcurrentHashMap<>();
 
         public AsyncNioUdpServerChannel(DatagramChannel serverChannel) {