Re: [Haskell-cafe] Why does sleep not work?

10 Feb 2009


      Corey O'Connor ha scritto:
...
2009/2/10 George Pollard :
...
...
import System.Posix
main = do
      putStrLn "Waiting for 5 seconds."
      blockSignals $ addSignal sigVTALRM emptySignalSet
      sleep 5
      putStrLn "Done."
Huh! Does the GHC runtime uses this signal? Perhaps for scheduling?
Right.
It is used for scheduling, as far as I understand.
So blocking it is a bad idea (unless you block it in a thread other than 
the main thread, IMO).
...
Cheers,
-Corey O'Connor
Regards  Manlio

Re: [Haskell-cafe] Why does sleep not work?

Manlio Perillo