Hi,
I try to figure out this matter. I am just new to this domain so excuse
me for the obvious the errors.
To broadcast an IP, this seems to work:
| socket |
socket := Socket newUDP.
socket setOption: 'SO_BROADCAST' value: true.
10 timesRepeat: [
socket sendUDPData: '10.7.2.1' toHost: #[255 255 255 255] port: 9999.
(Delay forSeconds: 1) wait.
].
socket closeAndDestroy.
Then I can listen from the shell: with: nc -ulk 9999
Now for the listener part, I wrote something like:
| socket data |
socket := Socket newUDP.
socket connectTo: NetNameResolver loopBackAddress port: 9999.
socket waitForConnectionFor: 2.
[data := socket receiveDataTimeout: 5.
data crLog] ensure: [ socket closeAndDestroy]
But I got an error when connecting the socket, the debugger message is:
"InvalidSocketStatusException: Socket status must Unconnected before
opening a new connection"
So far I don't see understand this error. Port 9999 is not in use, and
running again after this error the broadcast code does not lead to an error.
Any idea?
Thanks
Hilaire
--
Dr. Geo
http://drgeo.eu
