[Haskell-cafe] What does the withProcessHandle_ function do?

John Ky newhoggy at gmail.com
Mon Jan 15 20:48:03 EST 2007

I want to learn how to use FFI with Win32, so I'm looking through the GHC
source code.  I encountered the function

terminateProcess :: ProcessHandle -> IO ()
terminateProcess ph = do
  withProcessHandle_ ph $ \p_ ->
    case p_ of
      ClosedHandle _ -> return p_
      OpenHandle h -> do
    throwErrnoIfMinus1_ "terminateProcess" $ c_terminateProcess h
    return p_

which uses withProcessHandle_.  What does it do?


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.haskell.org/pipermail/haskell-cafe/attachments/20070116/25db76ea/attachment.htm

More information about the Haskell-Cafe mailing list