UDP connection... sucessful?

Monkey Forums/Monkey Beginners/UDP connection... sucessful?

StoneFaceEXE

(Posted 2014) [#1]

_socket = New Socket("datagram")
_socket.ConnectAsync("localhost",41337,self)

and I have all methods implemented in my app as well

Method OnConnectComplete:Void( connected:Bool,source:Socket )
	If Not connected Error "Connection error" Else Print "Connection established!"
End Method

Thats a "CLIENT" code, and when I execute it. it connects to me sucessfully, EVEN though I DID not launch my "SERVER" executable.
That means it did NOT BIND a socket that would act as a "server" and listen to a port
But it still says "Connection established"
Is that the way it is supposed to be? ) Do I miss something?

StoneFaceEXE

(Posted 2014) [#2]

Here is the whole thing:

Import mojo
Import brl.socket

'══════════════════════════════════════════════════════════════════════════════════════ '
	Class MyApp Extends App Implements IOnConnectComplete, IOnSendComplete
	 Field _socket:Socket
	 Field _port:= 41337
	 Field _data:= New DataBuffer(1024)
	 Field _address:SocketAddress
	        
			Method OnCreate:Int()
				_socket = New Socket("datagram")
				_socket.ConnectAsync("localhost",_port,self)
				_data.PokeString(0,"SendThisText")
				SetUpdateRate(60)
			Return 0
			End
	        
			Method OnUpdate:Int()
				UpdateAsyncEvents()
				If KeyHit(KEY_SPACE) Then _socket.SendAsync _data,0,_data.Length,Self
			Return 0
			End
	        
			Method OnRender:Int()
			Return 0
			End
			
'══════════════════════════════════════════════════════════════════════════════════════ '

		Method OnConnectComplete:Void( connected:Bool,source:Socket )
			If Not connected Error "Connection failed" Else Print "Connection sucessful!"
		End Method
	
		Method OnSendComplete:Void( data:DataBuffer,offset:Int,count:Int,source:Socket )
			Print "Send complete"
		End Method
	
	End Class
'══════════════════════════════════════════════════════════════════════════════════════ '
		Function Main:Int() ; New MyApp() ; Return 0 ; End Function

programmer

(Posted 2014) [#3]

https://en.wikipedia.org/wiki/User_Datagram_Protocol

UDP is a message-based connectionless protocol.

Hm... Brl.Socket doesn't allow to send UDP packets without connection to a remote server.
It's a bug IMHO.

StoneFaceEXE

(Posted 2014) [#4]

It could be a bug, or it's just something simple that's missing(
I've been looking into echoserver_udp example and found this:
If I don't create server, then client connection will fail.
However if I strip the example of ALL server related code then it will be the same as with me now (it would say that connection has been established)

StoneFaceEXE

(Posted 2014) [#5]

Still no luck wrapping my head around it.(
Any clues?