3.18.4 virtual private network

example/echo/echo-server.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	op "openp2p/core"
+	"time"
+)
+
+func main() {
+	op.Run()
+	echoServer()
+	forever := make(chan bool)
+	<-forever
+}
+
+func echoServer() {
+	// peerID := fmt.Sprintf("%d", core.NodeNameToID(peerNode))
+	for {
+		nd := op.GNetwork.ReadNode(time.Second * 10)
+		if nd == nil {
+			fmt.Printf("waiting for node data\n")
+			// time.Sleep(time.Second * 10)
+			continue
+		}
+		// fmt.Printf("read %s len=%d data=%s\n", nd.Node, len(nd.Data), nd.Data[:16])
+		nd.Data[0] = 'R' // echo server mark as replied
+		if err := op.GNetwork.WriteNode(nd.NodeID, nd.Data); err != nil {
+			fmt.Println("write error:", err)
+			break
+		}
+	}
+}