80 lines
1.3 KiB
Go
80 lines
1.3 KiB
Go
package tcp_learn
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import (
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"fmt"
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"log"
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"net"
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"time"
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)
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func handleConnection(conn net.Conn) {
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defer conn.Close()
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buf := make([]byte, 1024)
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for {
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n, err := conn.Read(buf)
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if err != nil {
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fmt.Println("Error reading:", err)
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break
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}
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if n > 0 {
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fmt.Printf("Received data from %s: %s\n", conn.RemoteAddr(), string(buf[:n]))
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}
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}
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}
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func TcpServer() {
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addr, err := net.ResolveTCPAddr("tcp", "localhost:8080")
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if err != nil {
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log.Printf("Error accepting connection: %v", err)
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}
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listener, err := net.ListenTCP("tcp", addr)
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if err != nil {
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log.Fatalf("Error creating listener: %v", err)
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}
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defer listener.Close()
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listener.SetDeadline(time.Now().Add(2 * time.Minute))
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for {
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conn, err := listener.Accept()
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if err != nil {
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log.Printf("Error accepting connection: %v", err)
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return
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}
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go handleConnection(conn)
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}
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}
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func TcpClient() chan bool {
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exit := make(chan bool, 1)
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tick := time.Tick(time.Second)
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timeOut := time.After(time.Minute)
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conn, err := net.Dial("tcp", "localhost:8080")
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if err != nil {
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log.Fatalf("Error creating listener: %v", err)
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return nil
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}
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for {
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select {
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case <-timeOut:
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fmt.Println("timeout exit!")
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exit <- true
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return exit
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case <-tick:
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_, err := conn.Write([]byte("Hello from tcp client !"))
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if err != nil {
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log.Fatalf("Error write tcp : %v", err)
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}
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}
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}
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return exit
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}
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