Why doesn't the second listen fail? And is there a way to fail if a port is
already in use?
socket := Socket newTCP.
socket listenOn: 8088.
socket2 := Socket newTCP.
socket2 listenOn: 8088.
(socket isValid and: [ socket2 isValid ])
ifTrue: [ self error: 'how can I be listening twice on the same port?!'
].
socket destroy.
socket2 destroy
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