[Haskell-cafe] runInteractiveCommand: program ends before writing or reading all the output

[Philip Weaver]

On Thu, May 15, 2008 at 11:42 AM, Ronald Guida <oddron at gmail.com> wrote:
> It looks like a simple race condition to me.  You are using
> "waitForProcess pid" to wait for runInteractiveCommand to finish, but
> you don't seem to have anything that waits for createDefFile to
> finish.
>
Whoops, sorry, I didn't read the original post closely enough.
>> main :: IO ()
>> main = do
>>   (file:_) <- getArgs
>>   (_, out, _, pid) <- runInteractiveCommand $ "dumpbin /EXPORTS " ++ file
>>   forkIO (createDefFile file out)
>>   waitForProcess pid
>>   hClose out
>>   hFlush stdout
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