test_server.go

package main
  
import (
  "net" 
  "runtime"
  "time"
)

func main() {
  runtime.GOMAXPROCS(2)

  resp := []byte("HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n")

  l, err := net.Listen("tcp", "127.0.0.1:1337")
  if err != nil { 
    panic(err)  
  }     
  for { 
    c, err := l.Accept()
    if err != nil {
      panic(err)        
    }           

    go func(c net.Conn) {
      defer c.Close()
                        
      buf := make([]byte, 1000)
                        
      for {
        _ = time.Second 
        if err := c.SetReadDeadline(time.Now().Add(time.Second)); err != nil {
          return                
        }                               
                                
        if _, err := c.Read(buf); err != nil {
          return                
        }                               
        if _, err := c.Write(resp); err != nil {
          return                
        }                               
      }                         
    }(c)                
  }             
}