[ ghc-Bugs-1353257 ] Problem with Threading under GHC

Bugs item #1353257, was opened at 2005-11-10 16:12
Message generated for change (Comment added) made by simonmar
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Category: GHCi
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Marco Block (schachblocki)
Assigned to: Nobody/Anonymous (nobody)
Summary: Problem with Threading under GHC

Initial Comment:
hi ghc-friends,

i try the following code, but it don't work:

import System.Process
import Control.Concurrent
import System.IO
p = threadDelay 10000000
main3 = do      putStrLn "test"
                hClose stdin
                (inp, out, err, pid) <- 
runInteractiveProcess "Test.exe" [] Nothing Nothing
                p
                forkIO (putStrLn =<< 
hGetContents out)
                forkIO (putStrLn =<< 
hGetContents err)
                p
                putStrLn "inp"
                forkIO (hPutStrLn inp "in" >> 
hClose 
inp)
                p
                forkIO (putStrLn =<< 
hGetContents out)
                forkIO (putStrLn =<< 
hGetContents err)
                putStrLn "out"
                threadDelay 1000000
                forkIO (hPutStrLn inp "quit" >> 
hClose 
inp)
                hShow out
                return ()

thanks for helping.


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>Comment By: Simon Marlow (simonmar)
Date: 2005-11-10 16:59

Message:
Logged In: YES 
user_id=48280

Please could you give more information: we don't know what
"Test.exe" is.  What do you expect to happen, and what in
fact does happen?  What behaviour are you claiming is at fault?

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1353257&group_id=8032