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import System.Posix.IO
import System.IO
showNBR = do
v <- System.Posix.IO.queryFdOption 0 System.Posix.IO.NonBlockingRead
putStr $ "NonBlockingRead = " ++ (show v) ++ "\n"
main = do
showNBR
System.Posix.IO.setFdOption 0 System.Posix.IO.NonBlockingRead True
showNBR
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