RosettaCodeData/Task/Events/Haskell/events-2.hs
2023-07-01 13:44:08 -04:00

11 lines
412 B
Haskell

main = do e <- newEvent
forkIO (waitTask e)
putStrLn "[1] Waiting 1 second..."
threadDelay 1000000 {- µs -}
putStrLn "[1] Signaling event."
signalEvent e
threadDelay 1000000 {- µs -} -- defer program exit for reception
waitTask e = do putStrLn "[2] Waiting for event..."
waitEvent e
putStrLn "[2] Received event."