doupeng6890
2017-07-03 01:34
浏览 59
已采纳

Golang中带有TCP / IP套接字的通道不起作用

I just started writting a Golang client for a server that I've made in C with TCP/IP sockets, then I figured out that my channel wasn't working.

Any ideas why ?

func reader(r io.Reader, channel chan<- []byte) {
  buf := make([]byte, 2048)
  for {
    n, err := r.Read(buf[:])
    if err != nil {
        return
    }
    channel <- buf[0:n]
  }
}
func client(e *gowd.Element) {
 f, err := os.Create("/tmp/dat2")
 if err != nil {
    log.Fatal()
 }
 read := make(chan []byte)
 c, err := net.Dial("tcp", "127.0.0.1:4242")
 if err != nil {
    log.Fatal(err)
 }
 go reader(c, read)
 for {
    buf := <-read
    n := strings.Index(string(buf), "
")
    if n == -1 {
        continue
 }
 msg := string(buf[0:n])
 if msg == "WELCOME" {
    fmt.Fprint(c, "GRAPHIC
")
 }
 f.WriteString(msg + "
")
}

Testing my server with netcat results in the following output : http://pasted.co/a37b2954

But i only have : http://pasted.co/f13d56b4

I'm new to chan in Golang so maybe I'm wrong (I probably am)

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