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{-# LANGUAGE CPP #-}

{- | Compatibility helper module.

This module holds definitions that help with supporting multiple library versions or transitions between versions.

-}

{-

Copyright (C) 2011 Google Inc.

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., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301, USA.

-}

module Ganeti.HTools.Compat

    ( rwhnf

    , Control.Parallel.Strategies.parMap

    ) where

import qualified Control.Parallel.Strategies

-- | Wrapper over the function exported from

-- "Control.Parallel.Strategies".

--

-- This wraps either the old or the new name of the function,

-- depending on the detected library version.

rwhnf :: Control.Parallel.Strategies.Strategy a

#ifdef PARALLEL3

rwhnf = Control.Parallel.Strategies.rseq

#else

rwhnf = Control.Parallel.Strategies.rwhnf

#endif