[REBOL] How to tell if a port is open/closed ?
From: arolls:bigpond:au at: 20-Aug-2001 14:33
I have a server like this:
server-port: open/direct/no-wait/lines tcp://:4321
connection-port: first server-port
append ports: copy  connection-port
; client connects and disconnects...
; disconnect all
foreach port ports [if port [close port]]
** Access Error: Port none not open
** Where: disconnect
** Near: close port
This happens if I try to close it twice,
but I was hoping the test:
if port [close port]
would only try to close ports for open ports.
** How do I tell if a port is open?