This is part of the Semicolon&Sons Code Diary - consisting of lessons learned on the job. You're in the architecture category.
Last Updated: 2024-04-24
Say you have a command line program and you want it to exit whenever you press enter (or some other key: it doesn't matter - basically you want any way of leaving the program without sending a signal)
How would you program that?
The trick is to create an extra thread scans stdin for input keys and then
reacts to them (e.g. by exiting)
Thread.new do
Thread.current.abort_on_exception = true
$stdin.getc
exit
end
loop do
# main code
end