    {- arch-tag: Thread utilities main file
    Copyright (C) 2004 John Goerzen <jgoerzen@complete.org>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    -}

    {- |
       Module     : Control.Concurrent.Thread.Utils
       Copyright  : Copyright (C) 2004 John Goerzen
       License    : GNU GPL, version 2 or above

       Maintainer : John Goerzen <jgoerzen@complete.org>
       Stability  : provisional
       Portability: portable

    This module provides various helpful utilities for dealing with threads.

    Written by John Goerzen, jgoerzen\@complete.org
    -}

    module Control.Concurrent.Thread.Utils(-- * I\/O utilities
                            runInThread
                           )
    where

    import Control.Concurrent

    {- | Takes a IO action and a function.  The IO action will be called in a
    separate thread.  When it is completed, the specified function is called with
    its result.  This is a simple way of doing callbacks. -}

    runInThread :: IO a -> (a -> IO b) -> IO ThreadId
    runInThread action callback = forkIO $ action >>= callback >> return ()