UDP Networking Basics (questions)

Hi ImaginaryHuman,

I did find the documentation on UDP a bit limited as well.
And BNetEx didn't compile on my Intel Mac.
A small example which works for me:

Strict

' one for reading
Local udpRead:tSocket = CreateUDPSocket()
BindSocket (udpRead, 49000)

' one for writing
Local udpWrite:tSocket = CreateUDPSocket()
ConnectSocket (udpWrite, HostIp ("127.0.0.1"), 49000)

' Send some data
Local b:Byte [] = [Byte(9), Byte(7), Byte(5), Byte(3), Byte(1)]
UdpWrite.send (Varptr b[0], b.length)

' create a loop which waits for some data
While True

If SocketReadAvail (UdpRead)
' a bank to store the input
Local tmpBank:TBank = CreateBank (1024)
' size of data-package
Local length:Int = UdpRead.recv (BankBuf (tmpBank), tmpBank.size() )
' print data
For Local i:Int = 0 To length - 1
Print tmpBank.PeekByte(i)
Next
' exit this loop
Exit
End If

Wend


CloseSocket (udpWrite)
CloseSocket (udpRead)
End

Ghislain
MacIntel 10.5 - BlitzMax v1.28