github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/talks/2012/chat/support/echo-no-concurrency.go (about)

     1  // +build OMIT
     2  
     3  package main
     4  
     5  import (
     6  	"io"
     7  	"log"
     8  	"net"
     9  )
    10  
    11  const listenAddr = "localhost:4000"
    12  
    13  func main() {
    14  	l, err := net.Listen("tcp", listenAddr)
    15  	if err != nil {
    16  		log.Fatal(err)
    17  	}
    18  	for {
    19  		c, err := l.Accept()
    20  		if err != nil {
    21  			log.Fatal(err)
    22  		}
    23  		io.Copy(c, c)
    24  	}
    25  }