Golang TCP Echo Server sample

This is a creation in Article, where the information may have evolved or changed.

Golang Code Server:

Package Mainimport (//"IO" "Log" "NET" "Time" "FMT" "Runtime") func main () {runtime. Gomaxprocs (4)//Set the number of CPUs//Listen on TCP Port # on all interfaces. L, Err: = Net. Listen ("TCP", ":") if err! = Nil {  log. Fatal (ERR)} defer L.close () for {  conn, err: = L.accept ()  if err! = Nil {   log. Fatal (Err)  }  //Handle The connection in a new goroutine.  The loop then returns to accepting and so  //multiple connections is served concurrently.  Go func (c net. Conn) {   defer c.close ()   var buf = make ([]byte, MB)   for {    cnt, err: = C.read (BUF)    if err! = Nil { C14/>fmt. Printf ("Recv failed:%s", err)     return    }       //fmt. Println (String (buf[:cnt)) time    . Sleep    _, Err = C.write (buf[:cnt])    if err! = Nil {     FMT. Printf ("Write failed:%s", err)     return    }}}  (conn)}}

Client Python code:

Import Threadingimport sysimport timeimport socket, Sysimport selectdef Echo ():    host = "172.16.2.18"    Textport = 2    s = socket.socket (socket.af_inet, socket. Sock_stream)    Try:        port = Int (textport)    except valueerror:        port = socket.getservbyname (Textport, ' TCP ')    S.connect ((host, Port)) while    1:        select.select ([],[],[],0.1)        data = Time.ctime ()        Data.join ("\ r \ n")        S.sendall (data)        #print "looking for replies; Press CTRL-C or Ctrl-break to stop. "        BUF = S.RECV (2048)    if __name__ = = "__main__":    threads = [] for    i in xrange:        OS = threading. Thread (None,echo)        Os.start ()        threads.append (OS) for        x in Threads:        x.join ()