    {-# LANGUAGE Safe #-}
    {- arch-tag: Thread utilities main file
    Copyright (c) 2004-2011 John Goerzen <jgoerzen@complete.org>

    All rights reserved.

    For license and copyright information, see the file LICENSE
    -}

    {- |
       Module     : Control.Concurrent.Thread.Utils
       Copyright  : Copyright (C) 2004-2011 John Goerzen
       License    : BSD3

       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 ()