gd sockets.. y u no write?

panel.gd

extends Panel

export(String) var host = "localhost"
export(int) var port = 7777
export(bool) var autoConnect = true

var Socket = preload("socket.gd")
var socket

func _init():
	socket = Socket.new()
	if(autoConnect):
		sockConnect()
	get_node(get_path()).connect("sock.recv", self, "_receive")
	connect("sock.err", self, "_err")
	
func _ready():
	get_node("Button").connect("pressed", self, "onButtonPress")

func onButtonPress():
	var node = get_node("Input")
	var input = node.get_text()
	node.set_text("")
	socket.write(input)

func sockConnect():
	socket.connect(host, port)

func sockDisconnect():
	socket.disconnect()

func write(string):
	socket.write(string)

func _receive(string):
	print("Received ", string)

func _err(string):
	print("SOCK_ERR ", string)

socket.gd

var socket = StreamPeerTCP.new()
var _accum = 0  # delta accumulator
var _active = false   # socket intended for use
var _connected = false  # socket is connected

const ERR = 1

func _ready():
	set_process(true)
	
func _process(delta):
	_readloop(delta)	

###
### Server doesn't receive the string
### 
func write(string):
	if(_connected):
		socket.write(_string_to_raw_array(string))

func connect(host, port):
	_active = true
	var err = socket.connect(host, port)
	_connected = socket.is_connected()
	return err

func disconnect():
	_active = false
	_connected = false
	socket.disconnect()

func _readloop(delta):
	if(not _active):
		pass
		
	# TODO, emit errors and data
	_accum += delta
	
	if(_accum > 1):
		_accum = 0
		var connected = socket.is_connected()
		
		if(not connected):
			_respond("Lost Connection", ERR)
		else:
			var output = socket.get_partial_data(1024)
			var errCode = output[0]
			var outputData = output[1]
			
			if(errCode != 0):
				_respond( "ErrCode:" + str(errCode), ERR)
			else:
				var outStr = outputData.get_string_from_utf8()
				if(outStr != ""):
					_respond( outStr, 0 )

func _respond(msg, errCode):
	if(errCode == 0):
		_respondOK(msg)
	elif(errCode == ERR):
		_respondErr(msg)

func _respondOK(msg):
	emit_signal("sock.recv", msg)

func _respondErr(msg):
	emit_signal("sock.err", msg)

func _string_to_raw_array(string):
	var len = string.length()
	var raw = RawArray()
	var i=0
	
	while(i<len):
		raw.push_back( string.ord_at(i) )
		i=i+1
	
	return raw

you function _string_to_raw_array is wrong. This is because first of string char is length. try this:

func _string_to_raw_array(string):
var len = string.length()
var raw = RawArray()
var i=2
raw.push_back(0)
raw.push_back(len)
while(i<len):
raw.push_back( string.ord_at(i) )
i=i+1
return raw

you may modify line 19 to :
socket.put_data(_ string _ to_raw_array(string))

not have socket.write()

Hi,
I have try this code but i have this error ''Attempt to connect to unexisting signal : sock.recv'
what's wrong ?
thank's