49 lines
1016 B
Go
49 lines
1016 B
Go
package main
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import (
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"net"
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"os"
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"fmt"
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)
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type EchoServer struct {
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port uint16
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}
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func NewEchoServer(port uint16) *EchoServer {
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return &EchoServer{port}
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}
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func (s *EchoServer) Run() {
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addr := fmt.Sprintf("0.0.0.0:%d", s.port)
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server, err := net.Listen("tcp", addr)
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if err != nil {
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fmt.Println("Error listening:", err.Error())
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os.Exit(1)
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}
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defer server.Close()
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fmt.Println("EchoServer waiting for client...")
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for {
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connection, err := server.Accept()
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if err != nil {
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fmt.Println("Error accepting: ", err.Error())
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os.Exit(1)
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}
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fmt.Println("client connected")
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go s.processClient(connection)
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}
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}
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func (s *EchoServer) processClient(connection net.Conn) {
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buffer := make([]byte, 1024)
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for {
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mLen, err := connection.Read(buffer)
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if err != nil {
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fmt.Println("Error reading:", err.Error())
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break
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}
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fmt.Printf("Received %d bytes\n", mLen)
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_, err = connection.Write([]byte(buffer[:mLen]))
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}
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connection.Close()
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} |