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115 lines
2.5 KiB
115 lines
2.5 KiB
package znet
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import (
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"fmt"
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"io"
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"net"
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"testing"
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"time"
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)
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// run in terminal:
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// go test -v ./znet -run=TestDataPack
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//只是负责测试datapack拆包,封包功能
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func TestDataPack(t *testing.T) {
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//创建socket TCP Server
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listener, err := net.Listen("tcp", "127.0.0.1:7777")
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if err != nil {
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fmt.Println("server listen err:", err)
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return
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}
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//创建服务器gotoutine,负责从客户端goroutine读取粘包的数据,然后进行解析
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go func() {
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for {
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conn, err := listener.Accept()
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if err != nil {
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fmt.Println("server accept err:", err)
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}
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//处理客户端请求
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go func(conn net.Conn) {
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//创建封包拆包对象dp
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dp := NewDataPack()
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for {
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//1 先读出流中的head部分
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headData := make([]byte, dp.GetHeadLen())
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_, err := io.ReadFull(conn, headData) //ReadFull 会把msg填充满为止
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if err != nil {
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fmt.Println("read head error")
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}
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//将headData字节流 拆包到msg中
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msgHead, err := dp.Unpack(headData)
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if err != nil {
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fmt.Println("server unpack err:", err)
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return
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}
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if msgHead.GetDataLen() > 0 {
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//msg 是有data数据的,需要再次读取data数据
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msg := msgHead.(*Message)
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msg.Data = make([]byte, msg.GetDataLen())
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//根据dataLen从io中读取字节流
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_, err := io.ReadFull(conn, msg.Data)
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if err != nil {
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fmt.Println("server unpack data err:", err)
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return
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}
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fmt.Println("==> Recv Msg: ID=", msg.Id, ", len=", msg.DataLen, ", data=", string(msg.Data))
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}
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}
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}(conn)
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}
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}()
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//客户端goroutine,负责模拟粘包的数据,然后进行发送
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go func() {
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conn, err := net.Dial("tcp", "127.0.0.1:7777")
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if err != nil {
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fmt.Println("client dial err:", err)
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return
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}
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//创建一个封包对象 dp
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dp := NewDataPack()
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//封装一个msg1包
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msg1 := &Message{
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Id: 0,
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DataLen: 5,
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Data: []byte{'h', 'e', 'l', 'l', 'o'},
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}
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sendData1, err := dp.Pack(msg1)
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if err != nil {
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fmt.Println("client pack msg1 err:", err)
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return
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}
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msg2 := &Message{
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Id: 1,
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DataLen: 7,
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Data: []byte{'w', 'o', 'r', 'l', 'd', '!', '!'},
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}
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sendData2, err := dp.Pack(msg2)
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if err != nil {
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fmt.Println("client temp msg2 err:", err)
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return
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}
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//将sendData1,和 sendData2 拼接一起,组成粘包
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sendData1 = append(sendData1, sendData2...)
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//向服务器端写数据
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conn.Write(sendData1)
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}()
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//客户端阻塞
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select {
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case <-time.After(time.Second):
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return
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}
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}
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