packages feed

cctools-workqueue (empty) → 3.6.1.0.1.0.0

raw patch · 14 files changed

+1404/−0 lines, 14 filesdep +basedep +bindings-cctoolsdep +bytestringsetup-changed

Dependencies added: base, bindings-cctools, bytestring, lens, monad-loops, unix

Files

+ Control/Distributed/CCTools/WorkQueue.hs view
@@ -0,0 +1,16 @@+-- -*- indent-tabs-mode: nil -*- --+module Control.Distributed.CCTools.WorkQueue+    (++      module Control.Distributed.CCTools.WorkQueue.WorkQueue+    , module Control.Distributed.CCTools.WorkQueue.Task+    , module Control.Distributed.CCTools.WorkQueue.Types+    , module Control.Distributed.CCTools.WorkQueue.Debug++    )+    where++import Control.Distributed.CCTools.WorkQueue.WorkQueue+import Control.Distributed.CCTools.WorkQueue.Task+import Control.Distributed.CCTools.WorkQueue.Types+import Control.Distributed.CCTools.WorkQueue.Debug
+ Control/Distributed/CCTools/WorkQueue/Debug.hs view
@@ -0,0 +1,11 @@+-- -*- indent-tabs-mode: nil -*- --++module Control.Distributed.CCTools.WorkQueue.Debug+    (+      DebugFlag(..)+    , setDebugFlags+    )+    where++import Control.Distributed.CCTools.WorkQueue.Internal.Debug+import Control.Distributed.CCTools.WorkQueue.Internal.Types
+ Control/Distributed/CCTools/WorkQueue/Internal/Cast.hs view
@@ -0,0 +1,8 @@+-- -*- indent-tabs-mode: nil -*- --++{-# LANGUAGE MultiParamTypeClasses #-}++module Control.Distributed.CCTools.WorkQueue.Internal.Cast where++class Castable a b where+    cast :: a -> b
+ Control/Distributed/CCTools/WorkQueue/Internal/CastInstances.hs view
@@ -0,0 +1,146 @@+-- -*- indent-tabs-mode: nil -*- --++{-# LANGUAGE FlexibleInstances #-}+{-# LANGUAGE MultiParamTypeClasses #-}++module Control.Distributed.CCTools.WorkQueue.Internal.CastInstances where++import Bindings.CCTools.WorkQueue++import Control.Distributed.CCTools.WorkQueue.Internal.Cast+import Control.Distributed.CCTools.WorkQueue.Internal.Types++import Foreign.C.Types++import Control.Lens ((^.))++-- * Haskell-provided++-- ** 'Int' <-> 'CInt'+instance Castable Int CInt       where cast = fromIntegral+instance Castable CInt Int       where cast = fromIntegral++-- ** 'Double' <-> 'CDouble'+instance Castable Double CDouble where cast = fromRational . toRational+instance Castable CDouble Double where cast = fromRational . toRational++++-- * For WorkQueue++-- ** Utilities++-- *** 'Castable' a b => 'Castable' ('NPlus' a) b+instance Castable a b => Castable (NPlus a) b where+    cast (NP v) = cast v++instance ( Castable a b+         , Num a, Num b+         , Ord a+         , Show a)+    => Castable a (NPlus b)+    where+      cast v | v > 0     = NP    $ cast v+             | otherwise = error $ "Got a non-positive value when constructing an NPlus: " ++ show v++-- *** DataSize++instance Castable (DataSize a) Integer where+    cast = _unDS++-- *** Time++instance Castable (EpochTime a) Integer where cast = _unET+instance Castable (DiffTime  a) Integer where cast = _unDT+++-- *** File Locality++instance Castable (Location a) FilePath where cast = _unL+++-- ** 'MasterMode'++instance Castable MasterMode CInt where+    cast Standalone = c'WORK_QUEUE_MASTER_MODE_STANDALONE+    cast Catalog    = c'WORK_QUEUE_MASTER_MODE_CATALOG++instance Castable CInt MasterMode where+    cast v | v == c'WORK_QUEUE_MASTER_MODE_STANDALONE = Standalone+              | v == c'WORK_QUEUE_MASTER_MODE_CATALOG    = Catalog+              | otherwise                                = error $ "Cannot cast to MasterMode: " ++ show v+++-- ** 'Hunger'++instance Castable CInt Hunger where+    cast v | v <= 0    = Full+              | otherwise = Hungry $ fromIntegral v+++-- ** 'FastAbort'++instance Castable FastAbort CDouble where+    cast FastAbortOff = 0+    cast (FastAbort v) = cast v++-- ** 'Timeout'++instance Castable Timeout CInt where+    cast Forever = -1+    cast (Seconds v) = fromIntegral v++-- ** 'Cached'++instance Castable Cached CInt where+    cast c = if c+                then c'WORK_QUEUE_CACHE+                else c'WORK_QUEUE_NOCACHE+++-- ** 'WorkerScheduleAlg'++instance Castable WorkerScheduleAlg CInt where+    cast FCFS  = c'WORK_QUEUE_SCHEDULE_FCFS+    cast FILES = c'WORK_QUEUE_SCHEDULE_FILES+    cast TIME  = c'WORK_QUEUE_SCHEDULE_TIME+    cast RAND  = c'WORK_QUEUE_SCHEDULE_RAND  ++instance Castable CInt WorkerScheduleAlg where+    cast v | v == c'WORK_QUEUE_SCHEDULE_FCFS  = FCFS+              | v == c'WORK_QUEUE_SCHEDULE_FILES = FILES+              | v == c'WORK_QUEUE_SCHEDULE_TIME  = TIME+              | v == c'WORK_QUEUE_SCHEDULE_RAND  = RAND+              | otherwise                        = error $ "Cannot cast CInt to WorkerScheduleAlg: " ++ show v++-- ** 'TaskOrdering'++instance Castable TaskOrdering CInt where+    cast LIFO = c'WORK_QUEUE_TASK_ORDER_LIFO+    cast FIFO = c'WORK_QUEUE_TASK_ORDER_FIFO++-- ** 'FileType'++instance Castable FileType CInt where+    cast InputFile  = c'WORK_QUEUE_INPUT+    cast OutputFile = c'WORK_QUEUE_OUTPUT++-- ** TaskID++instance Castable CInt TaskID where+    cast = TID . fromIntegral++instance Integral b => Castable TaskID b where+    cast (TID v) = fromIntegral v+++-- ** Port++instance Castable (Maybe Port) CInt where+    cast Nothing = c'WORK_QUEUE_RANDOM_PORT+    cast (Just p) = cast $ p^.unP++-- ** Command++instance Castable Command String where+    cast = _unC
+ Control/Distributed/CCTools/WorkQueue/Internal/Debug.hs view
@@ -0,0 +1,18 @@+-- -*- indent-tabs-mode: nil -*- --++module Control.Distributed.CCTools.WorkQueue.Internal.Debug where++import Control.Distributed.CCTools.WorkQueue.Internal.Types (DebugFlag (..))++import Bindings.CCTools.Debug++import Foreign.C.String (CString, newCString)+++setDebugFlags :: [DebugFlag] -> IO ()+setDebugFlags = mapM_ ( (c'cctools_debug_flags_set =<<) . cDebugFlag )+    where+      cDebugFlag          :: DebugFlag -> IO CString+      cDebugFlag All       = newCString "all"+      cDebugFlag WorkQueue = newCString "wq"+
+ Control/Distributed/CCTools/WorkQueue/Internal/Task.hs view
@@ -0,0 +1,175 @@+-- -*- indent-tabs-mode: nil -*- --++-- | Creation and operations on 'Task's++module Control.Distributed.CCTools.WorkQueue.Internal.Task where++import Control.Distributed.CCTools.WorkQueue.Internal.Cast+import Control.Distributed.CCTools.WorkQueue.Internal.Types+import Control.Distributed.CCTools.WorkQueue.Internal.CastInstances ()++import Bindings.CCTools.WorkQueue++import Foreign.C+import Foreign.Storable++import Control.Applicative ((<$>))+import Control.Lens+import System.IO.Unsafe+import System.Exit (ExitCode (..) )++import Data.ByteString (ByteString)+import qualified Data.ByteString as BS++++-- * Task creation/deletion+task :: Command -> IO Task+task c = t'+    where+      t' = T <$> t+      t  = c'work_queue_task_create =<< newCString (view unC c)++delete :: Task -> IO ()+delete t = c'work_queue_task_delete t'+    where+      t' = view unT t++-- * File specifications++specifyFile :: Task -> Location Local -> Location Remote -> FileType -> Cached -> IO ()+specifyFile t l r k c = do+  l' <- newCString $ l^.unL+  r' <- newCString $ r^.unL+  c'work_queue_task_specify_file (t^.unT)+                                 l'+                                 r'+                                 (cast k)+                                 (cast c)+++specifyBuffer :: Task -> ByteString -> Location Remote -> Cached -> IO ()+specifyBuffer t s r c =+  BS.useAsCStringLen s $ \(d,l) -> do+    r' <- newCString $ r^.unL+    c'work_queue_task_specify_buffer (t^.unT)+                                     d+                                     (cast l)+                                     r'+                                     (cast c)+++specifyFileCommand :: Task -> Location Remote -> Command -> FileType -> Cached -> IO ()+specifyFileCommand t l e k c = do+  path <- newCString $ l^.unL+  cmd' <- newCString $ e^.unC+  c'work_queue_task_specify_file_command (t^.unT)+                                         path+                                         cmd'+                                         (cast k)+                                         (cast c)++specifyTag :: Task -> String -> IO ()+specifyTag t s = c'work_queue_task_specify_tag (t^.unT) =<< newCString s++specifyAlgorithm :: Task -> WorkerScheduleAlg -> IO ()+specifyAlgorithm t a = c'work_queue_task_specify_algorithm (t^.unT) (cast a)+++-- * Task properties++withTask :: (a -> IO b) -> (C'work_queue_task -> a) -> Task -> IO b+withTask g f t = g =<< f <$> peek (t^.unT)++unsafeWithTask :: (a -> IO b) -> (C'work_queue_task -> a) -> Task -> b+unsafeWithTask g f = unsafeDupablePerformIO . withTask g f++tag :: Task -> String+tag = unsafeWithTask peekCString c'work_queue_task'tag++command :: Task -> Command+command = unsafeWithTask (fmap C . peekCString) c'work_queue_task'command_line++workerSelectionAlgorithm :: Task -> WorkerScheduleAlg+workerSelectionAlgorithm = unsafeWithTask (return . cast) c'work_queue_task'worker_selection_algorithm++output :: Task -> ByteString+output = unsafeWithTask BS.packCString c'work_queue_task'output++taskID :: Task -> TaskID+taskID = unsafeWithTask (return . TID . fromIntegral) c'work_queue_task'taskid++returnStatus :: Task -> ExitCode+returnStatus = unsafeWithTask mkExitCode c'work_queue_task'return_status+    where mkExitCode             = return . exitcode . fromIntegral+          exitcode c | c == 0    = ExitSuccess+                     | otherwise = ExitFailure c++result :: Task -> Maybe ()+result = unsafeWithTask mkMaybe c'work_queue_task'result+    where mkMaybe                = return . mkMaybe' . fromIntegral+          mkMaybe' s | s == 0    = Just ()+                     | otherwise = Nothing++host :: Task -> Hostname+host = unsafeWithTask (fmap H . peekCString) c'work_queue_task'hostname++taskTimeType :: Integral a => (a -> t) -> (C'work_queue_task -> a) -> Task -> t+taskTimeType c = unsafeWithTask (return . c)++taskEpochTime :: Integral a => (C'work_queue_task -> a) -> Task -> EpochTime MicroSeconds+taskEpochTime f = taskTimeType ET (fromIntegral . f)++taskTime :: Integral a => (C'work_queue_task -> a) -> Task -> DiffTime MicroSeconds+taskTime f = taskTimeType DT (fromIntegral . f)++submitTime :: Task -> EpochTime MicroSeconds+submitTime = taskEpochTime c'work_queue_task'time_task_submit++finishTime :: Task -> EpochTime MicroSeconds+finishTime = taskEpochTime c'work_queue_task'time_task_finish++appDelayTime :: Task -> EpochTime MicroSeconds+appDelayTime = taskEpochTime c'work_queue_task'time_app_delay++timeSendInputStart :: Task -> EpochTime MicroSeconds+timeSendInputStart = taskEpochTime c'work_queue_task'time_send_input_start++timeSendInputFinish :: Task -> EpochTime MicroSeconds+timeSendInputFinish = taskEpochTime c'work_queue_task'time_send_input_finish++sendTime :: Task -> DiffTime MicroSeconds+sendTime t = t1 `diffTime` t0+    where t0 = timeSendInputStart t+          t1 = timeSendInputFinish t++timeExecuteCmdStart :: Task -> EpochTime MicroSeconds+timeExecuteCmdStart = taskEpochTime c'work_queue_task'time_execute_cmd_start++timeExecuteCmdFinish :: Task -> EpochTime MicroSeconds+timeExecuteCmdFinish = taskEpochTime c'work_queue_task'time_execute_cmd_finish++timeExecuteCmd :: Task -> DiffTime MicroSeconds+timeExecuteCmd t = t1 `diffTime` t0+    where t0 = timeExecuteCmdStart  t+          t1 = timeExecuteCmdFinish t++timeReceiveOutputStart :: Task -> EpochTime MicroSeconds+timeReceiveOutputStart = taskEpochTime c'work_queue_task'time_receive_output_start++timeReceiveOutputFinish :: Task -> EpochTime MicroSeconds+timeReceiveOutputFinish = taskEpochTime c'work_queue_task'time_receive_output_finish++timeReceiveOutput :: Task -> DiffTime MicroSeconds+timeReceiveOutput t = t1 `diffTime` t0+    where t0 = timeReceiveOutputStart  t+          t1 = timeReceiveOutputFinish t++totalBytesTransferred :: Task -> DataSize Bytes+totalBytesTransferred = unsafeWithTask (return . DS . fromIntegral) c'work_queue_task'total_bytes_transferred++totalTransferTime :: Task -> DiffTime MicroSeconds+totalTransferTime = taskTime c'work_queue_task'total_transfer_time++totalCmdExecutionTime :: Task -> DiffTime MicroSeconds+totalCmdExecutionTime = taskTime c'work_queue_task'cmd_execution_time
+ Control/Distributed/CCTools/WorkQueue/Internal/Types.hs view
@@ -0,0 +1,180 @@+-- -*- indent-tabs-mode: nil -*- --++{-# LANGUAGE EmptyDataDecls #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE StandaloneDeriving #-}+{-# LANGUAGE TemplateHaskell #-}++module Control.Distributed.CCTools.WorkQueue.Internal.Types where++import Bindings.CCTools.WorkQueue++import Foreign.Ptr+import Foreign.ForeignPtr++import Control.Lens++-- * Usefull types++newtype NPlus a = NP { _unZP :: a }+    deriving+    (Enum, Num, Real, Eq, Ord, Show)++deriving instance Integral a => Integral (NPlus a) ++nplus :: (Ord a, Num a, Show a) => a -> NPlus a+nplus v | v > 0     = NP v+        | otherwise = error $ "Cannot create an NPlus with: " ++ show v++++-- ** Unit-typed data volume++data Bytes+newtype DataSize a = DS { _unDS :: Integer }+makeLenses ''DataSize++bytes :: Integral i => i -> DataSize Bytes+bytes = DS . fromIntegral++++-- ** Unit-typed time++data Seconds+data MicroSeconds++-- | Time since January 1, 1970+newtype EpochTime a = ET { _unET :: Integer }++-- | Difference between two 'EpochTime's+newtype DiffTime a = DT { _unDT :: Integer }++makeLenses ''EpochTime+makeLenses ''DiffTime++diffTime :: EpochTime a -> EpochTime a -> DiffTime a+diffTime t1 t0 = DT $ t1' - t0'+    where t0' = view unET t0+          t1' = view unET t1++epoch :: Integral i => i -> EpochTime a+epoch = ET . fromIntegral++epochSeconds :: Integral i => i -> EpochTime Seconds+epochSeconds = epoch++epochMicroSeconds :: Integral i => i -> EpochTime MicroSeconds+epochMicroSeconds = epoch+++++-- ** Locality++data Local+data Remote+newtype Location a = L { _unL :: FilePath }++makeLenses ''Location++remote :: FilePath -> Location Remote+remote = L++local :: FilePath -> Location Local+local = L++++-- * WorkQueue-related++-- ** Interface to WorkQueue++newtype WorkQueue      = WQ { _unWQ :: ForeignPtr C'work_queue }+newtype Task           = T  { _unT  ::        Ptr C'work_queue_task }+newtype Stats          = S  { _unS  :: ForeignPtr C'work_queue_stats }++makeLenses ''WorkQueue+makeLenses ''Task+makeLenses ''Stats++data MasterMode        = Standalone | Catalog+                       deriving+                       Show++data Hunger            = Full | Hungry (NPlus Int)+                         deriving+                         (Eq+                         , Show)++data FastAbort         = FastAbortOff | FastAbort (NPlus Double)+                       deriving+                       Show++data Timeout           = Forever | Seconds (NPlus Int)+                       deriving+                       Show++type Cached            = Bool++data WorkerScheduleAlg = FCFS | FILES | TIME | RAND+                       deriving+                       (Read, Show)++data TaskOrdering      = LIFO | FIFO+                       deriving+                       (Read, Show)++data FileType          = InputFile | OutputFile+                       deriving+                       (Read, Show)++-- ** Semantically-typed++newtype Command  = C   { _unC   :: String    }+newtype TaskID   = TID { _unTID :: Int       }+newtype Hostname = H   { _unH   :: String    }+newtype Port     = P   { _unP   :: NPlus Int }+    deriving+    Show++data QueueParams = QP {+      _qport        :: Maybe Port+    , _name         :: Maybe String+    , _fastabort    :: Maybe FastAbort+    , _taskordering :: Maybe TaskOrdering+    , _priority     :: Maybe Int+    , _mode         :: Maybe MasterMode+    , _logfile      :: Maybe FilePath+    , _scheduler    :: Maybe WorkerScheduleAlg+    } deriving Show++makeLenses ''Command+makeLenses ''TaskID+makeLenses ''Port+makeLenses ''Hostname+makeLenses ''QueueParams+++-- *** Smart Constructors++-- | A 'Port' is a postive 'Int'+port :: Int -> Port+port = P . fromIntegral++-- | Creates a 'Timeout' using 'Seconds'+seconds :: Integral i => i -> Timeout+seconds = Seconds . nplus . fromIntegral++-- | A 'Command' to be executed remotely+cmd :: String -> Command+cmd = C++-- | The 'Hostname' of a node+hostname :: String -> Hostname+hostname = H+++-- * Enabling WorkQueue debugging++data DebugFlag = All | WorkQueue
+ Control/Distributed/CCTools/WorkQueue/Internal/WorkQueue.hs view
@@ -0,0 +1,235 @@+-- -*- indent-tabs-mode: nil -*- --++-- | Creation and operations on a 'WorkQueue'++module Control.Distributed.CCTools.WorkQueue.Internal.WorkQueue where++import Control.Distributed.CCTools.WorkQueue.Internal.Cast+import Control.Distributed.CCTools.WorkQueue.Internal.Types+import Control.Distributed.CCTools.WorkQueue.Internal.CastInstances ()++import Bindings.CCTools.WorkQueue++import Foreign.C+import Foreign.Ptr+import Foreign.ForeignPtr+import Foreign.Storable+import Foreign.Marshal.Utils (toBool)++import Control.Applicative ((<$>))+import Control.Lens+import Control.Monad ((>=>), void)+import System.IO.Unsafe+import Control.Monad.Loops++withJust :: Maybe a -> (a -> IO ()) -> IO ()+withJust m f = case m of+                 Just a -> f a+                 _      -> return ()++-- * WorkQueue creation/deletion++-- | The default parameters for initializing a 'WorkQueue'+-- +-- > defaultQParams :: QueueParams+-- > defaultQParams = QP {+-- >                    _qport        = Just    . port $ fromIntegral c'WORK_QUEUE_DEFAULT_PORT+-- >                  , _name         = Nothing+-- >                  , _fastabort    = Nothing+-- >                  , _taskordering = Nothing+-- >                  , _priority     = Nothing+-- >                  , _mode         = Nothing+-- >                  , _logfile      = Nothing+-- >                  , _scheduler    = Nothing+-- >                  }++defaultQParams :: QueueParams+defaultQParams = QP {+                   _qport        = Just    . port $ fromIntegral c'WORK_QUEUE_DEFAULT_PORT+                 , _name         = Nothing+                 , _fastabort    = Nothing+                 , _taskordering = Nothing+                 , _priority     = Nothing+                 , _mode         = Nothing+                 , _logfile      = Nothing+                 , _scheduler    = Nothing+                 }++workqueue :: QueueParams -> IO WorkQueue+workqueue p = do+  ptr  <- c'work_queue_create (cast $ p^.qport)+  q    <- WQ <$> newForeignPtr p'work_queue_delete ptr++  withJust (p^.fastabort   ) (setFastAbort    q)+  withJust (p^.taskordering) (setTaskOrdering q)+  withJust (p^.priority    ) (setPriority     q)+  withJust (p^.mode        ) (setMasterMode   q)+  withJust (p^.name        ) (setName         q)+  withJust (p^.logfile     ) (setLog          q)+  withJust (p^.scheduler   ) (setScheduleAlg  q)++  return q++setName :: WorkQueue -> String -> IO ()+setName q n = withForeignPtr (q^.unWQ) $ \q' -> do+                n' <- newCString n+                c'work_queue_specify_name q' n'++setFastAbort :: WorkQueue -> FastAbort -> IO ()+setFastAbort q a = withForeignPtr (q^.unWQ) (void . flip c'work_queue_activate_fast_abort (cast a))++setTaskOrdering :: WorkQueue -> TaskOrdering -> IO ()+setTaskOrdering q o = withForeignPtr (q^.unWQ) (`c'work_queue_specify_task_order` cast o)++setPriority :: WorkQueue -> Int -> IO ()+setPriority q p = withForeignPtr (q^.unWQ) (`c'work_queue_specify_priority` cast p)++setMasterMode :: WorkQueue -> MasterMode -> IO ()+setMasterMode q m = withForeignPtr (q^.unWQ) (`c'work_queue_specify_master_mode` cast m)++setLog :: WorkQueue -> FilePath -> IO ()+setLog q p = withForeignPtr (q^.unWQ) $ \q' ->+               c'work_queue_specify_log q' =<< newCString p++setScheduleAlg :: WorkQueue -> WorkerScheduleAlg -> IO ()+setScheduleAlg q a = withForeignPtr (q^.unWQ) (`c'work_queue_specify_algorithm` cast a)++shutdownWorkers :: WorkQueue -> NPlus Int -> IO (NPlus Int)+shutdownWorkers q n = withForeignPtr (q^.unWQ)+                        (fmap cast . flip c'work_queue_shut_down_workers (cast n))+++-- * Task submission/retrieval++submit :: WorkQueue -> Task -> IO TaskID+submit q t = withForeignPtr (q^.unWQ)+               (fmap cast . flip c'work_queue_submit (t^.unT))++wait :: WorkQueue -> Timeout -> IO (Maybe Task)+wait q t = withForeignPtr (q^.unWQ) $ \q' -> do+             r <- c'work_queue_wait q' $ cast t+             return $ if r == nullPtr+                        then Nothing+                        else Just $ T r+++cancelTaskBy :: (Ptr C'work_queue -> a -> IO (Ptr C'work_queue_task))+                -> (b -> IO a)+                -> WorkQueue -> b -> IO (Maybe Task)+cancelTaskBy c'cancel mkAttr q attribute =+    withForeignPtr (q^.unWQ) $ \q' -> do+      a <- mkAttr attribute+      r <- c'cancel q' a+      return $ if r == nullPtr+                 then Nothing+                 else Just $ T r++cancelTaskID :: WorkQueue -> TaskID -> IO (Maybe Task)+cancelTaskID = cancelTaskBy c'work_queue_cancel_by_taskid (return . cast)++cancelTaskTag :: WorkQueue -> String -> IO (Maybe Task)+cancelTaskTag = cancelTaskBy c'work_queue_cancel_by_tasktag newCString++-- | Main pattern for processing tasks after submission+--+-- Basically:+--+-- > eventLoop q timeout update process =+-- >   while (q is not empty)+-- >     update q+-- >     r <- wait q timeout+-- >     when r is Just: process q r+eventLoop :: WorkQueue+             -> Timeout+             -> (WorkQueue -> IO ())             -- ^ "update": called before 'wait'+             -> (WorkQueue -> Task   -> IO ())   -- ^ "process" a returned 'Task'+             -> IO ()+eventLoop q timeout update process =+    whileM_ (not <$> isEmpty q) $ do+      update q+      r <- wait q timeout+      maybe (return ()) (process q) r++-- * WorkQueue properties++getHunger :: WorkQueue -> IO Hunger+getHunger q = cast <$> withForeignPtr (q^.unWQ) c'work_queue_hungry++isFull :: WorkQueue -> IO Bool+isFull = fmap (Full ==) . getHunger++isEmpty :: WorkQueue -> IO Bool+isEmpty q = toBool <$> withForeignPtr (q^.unWQ) c'work_queue_empty++getPort :: WorkQueue -> IO Port+getPort q = P . cast <$> withForeignPtr (q^.unWQ) c'work_queue_port++getName :: WorkQueue -> IO String+getName q = peekCString =<< withForeignPtr (q^.unWQ) c'work_queue_name+++-- * WorkQueue Runtime Statistics++getWorkerSummary :: WorkQueue -> IO String+getWorkerSummary q = peekCString =<< withForeignPtr (q^.unWQ) c'work_queue_get_worker_summary++getStats :: WorkQueue -> IO Stats+getStats q = withForeignPtr (q^.unWQ) $ \q' -> do+               fptr <- mallocForeignPtr+               withForeignPtr fptr $ c'work_queue_get_stats q'+               return $ S fptr++withStats :: (a -> b) -> (C'work_queue_stats -> a) -> Stats -> IO b+withStats g f s = withForeignPtr (s^.unS) (peek >=> (return . g . f))++unsafeWithStats :: (a -> b) -> (C'work_queue_stats -> a) -> Stats -> b+unsafeWithStats g f s = unsafeDupablePerformIO $ withStats g f s+++workersInit :: Stats -> Int+workersInit = unsafeWithStats fromIntegral c'work_queue_stats'workers_init++workersReady :: Stats -> Int+workersReady = unsafeWithStats fromIntegral c'work_queue_stats'workers_ready++workersBusy :: Stats -> Int+workersBusy = unsafeWithStats fromIntegral c'work_queue_stats'workers_busy++workersCancelling :: Stats -> Int+workersCancelling = unsafeWithStats fromIntegral c'work_queue_stats'workers_cancelling++tasksRunning :: Stats -> Int+tasksRunning = unsafeWithStats fromIntegral c'work_queue_stats'tasks_running++tasksWaiting :: Stats -> Int+tasksWaiting = unsafeWithStats fromIntegral c'work_queue_stats'tasks_waiting++tasksComplete :: Stats -> Int+tasksComplete = unsafeWithStats fromIntegral c'work_queue_stats'tasks_complete++totalTasksDispatched :: Stats -> Int+totalTasksDispatched = unsafeWithStats fromIntegral c'work_queue_stats'total_tasks_dispatched++totalTasksComplete :: Stats -> Int+totalTasksComplete = unsafeWithStats fromIntegral c'work_queue_stats'total_tasks_complete++totalWorkersJoined :: Stats -> Int+totalWorkersJoined = unsafeWithStats fromIntegral c'work_queue_stats'total_workers_joined++totalWorkersRemoved :: Stats -> Int+totalWorkersRemoved = unsafeWithStats fromIntegral c'work_queue_stats'total_workers_removed++totalBytesSent :: Stats -> Integer+totalBytesSent = unsafeWithStats fromIntegral c'work_queue_stats'total_bytes_sent++totalBytesReceived :: Stats -> Integer+totalBytesReceived = unsafeWithStats fromIntegral c'work_queue_stats'total_bytes_received++startTime :: Stats -> EpochTime MicroSeconds+startTime = unsafeWithStats (ET . fromIntegral) c'work_queue_stats'start_time++totalSendTime :: Stats -> DiffTime MicroSeconds+totalSendTime = unsafeWithStats (DT . fromIntegral) c'work_queue_stats'total_send_time++totalReceiveTime :: Stats -> DiffTime MicroSeconds+totalReceiveTime = unsafeWithStats (DT . fromIntegral) c'work_queue_stats'total_receive_time
+ Control/Distributed/CCTools/WorkQueue/Task.hs view
@@ -0,0 +1,20 @@+-- -*- indent-tabs-mode: nil -*- --++module Control.Distributed.CCTools.WorkQueue.Task+    (+     +     -- * Task specification+      task, specifyFile, specifyBuffer, specifyFileCommand, specifyTag, specifyAlgorithm, delete++    -- * Properties+    , tag, command, workerSelectionAlgorithm, output, taskID, returnStatus, result, host+    , submitTime, finishTime, appDelayTime, timeSendInputStart, timeSendInputFinish+    , sendTime, timeExecuteCmdStart, timeExecuteCmdFinish, timeExecuteCmd+    , timeReceiveOutputStart, timeReceiveOutputFinish, timeReceiveOutput+    , totalBytesTransferred, totalTransferTime, totalCmdExecutionTime++    )+    where+++import Control.Distributed.CCTools.WorkQueue.Internal.Task
+ Control/Distributed/CCTools/WorkQueue/Types.hs view
@@ -0,0 +1,67 @@+-- -*- indent-tabs-mode: nil -*- --++module Control.Distributed.CCTools.WorkQueue.Types+    (++     -- * Utility Types++     -- ** Positive numbers+       NPlus, nplus++     -- ** Unit-typed values++     -- | These values are instances of 'Marshallable'. You can use+     -- the 'marshal' function to extract the actual value++     -- *** Data+    , Bytes, DataSize+    , bytes++     -- *** Time+    , Seconds, MicroSeconds, EpochTime, DiffTime+    , epochSeconds, epochMicroSeconds+    , diffTime+++     -- *** File Locality+    , Local, Remote, Location+    , local, remote+++    -- * WorkQueue API++    -- ** WorkQueue, Task, and runtime stats+    , WorkQueue, Task, Stats++    -- ** WorkQueue Parameters+    , QueueParams(..)++    -- ** WorkQueue properties+    , MasterMode(..)+    , Hunger(..)+    , FastAbort(..)+    , Timeout(..), seconds+    , Cached+    , WorkerScheduleAlg(..)+    , TaskOrdering(..)+    , FileType(..)+    , Port, port++    -- ** Task properties+    , Command, cmd+    , TaskID+    , Hostname, hostname++    -- ** Debugging+    , DebugFlag(..)++    -- ** Conversions and marshalling+    , Castable(..)++    )+    where+++import Control.Distributed.CCTools.WorkQueue.Internal.Types+import Control.Distributed.CCTools.WorkQueue.Internal.Cast+import Control.Distributed.CCTools.WorkQueue.Internal.CastInstances ()
+ Control/Distributed/CCTools/WorkQueue/WorkQueue.hs view
@@ -0,0 +1,42 @@+-- -*- indent-tabs-mode: nil -*- --++module Control.Distributed.CCTools.WorkQueue.WorkQueue+    (++    -- * WorkQueue specification+      defaultQParams+    , workqueue, setName, setFastAbort, setTaskOrdering, setPriority, setMasterMode, setScheduleAlg, shutdownWorkers++    -- * Logging+    , setLog++    -- * Task Submission and Retrieval+    , submit, eventLoop+    , wait, cancelTaskID, cancelTaskTag++    -- * Properties+    , getHunger, isFull, isEmpty, getPort, getName++    -- * Runtime Statistics+    , getWorkerSummary+    , getStats++    -- ** Workers+    , workersInit, workersReady, workersBusy, workersCancelling+    , totalWorkersJoined, totalWorkersRemoved++    -- ** Tasks+    , tasksRunning, tasksWaiting, tasksComplete+    , totalTasksDispatched, totalTasksComplete++    -- ** Data+    , totalBytesSent, totalBytesReceived++    -- ** Times+    , startTime, totalSendTime, totalReceiveTime++    )+    where+++import  Control.Distributed.CCTools.WorkQueue.Internal.WorkQueue
+ LICENSE view
@@ -0,0 +1,339 @@+             GNU GENERAL PUBLIC LICENSE+                Version 2, June 1991++ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++                     Preamble++  The licenses for most software are designed to take away your+freedom to share and change it.  By contrast, the GNU General Public+License is intended to guarantee your freedom to share and change free+software--to make sure the software is free for all its users.  This+General Public License applies to most of the Free Software+Foundation's software and to any other program whose authors commit to+using it.  (Some other Free Software Foundation software is covered by+the GNU Lesser General Public License instead.)  You can apply it to+your programs, too.++  When we speak of free software, we are referring to freedom, not+price.  Our General Public Licenses are designed to make sure that you+have the freedom to distribute copies of free software (and charge for+this service if you wish), that you receive source code or can get it+if you want it, that you can change the software or use pieces of it+in new free programs; and that you know you can do these things.++  To protect your rights, we need to make restrictions that forbid+anyone to deny you these rights or to ask you to surrender the rights.+These restrictions translate to certain responsibilities for you if you+distribute copies of the software, or if you modify it.++  For example, if you distribute copies of such a program, whether+gratis or for a fee, you must give the recipients all the rights that+you have.  You must make sure that they, too, receive or can get the+source code.  And you must show them these terms so they know their+rights.++  We protect your rights with two steps: (1) copyright the software, and+(2) offer you this license which gives you legal permission to copy,+distribute and/or modify the software.++  Also, for each author's protection and ours, we want to make certain+that everyone understands that there is no warranty for this free+software.  If the software is modified by someone else and passed on, we+want its recipients to know that what they have is not the original, so+that any problems introduced by others will not reflect on the original+authors' reputations.++  Finally, any free program is threatened constantly by software+patents.  We wish to avoid the danger that redistributors of a free+program will individually obtain patent licenses, in effect making the+program proprietary.  To prevent this, we have made it clear that any+patent must be licensed for everyone's free use or not licensed at all.++  The precise terms and conditions for copying, distribution and+modification follow.++             GNU GENERAL PUBLIC LICENSE+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION++  0. This License applies to any program or other work which contains+a notice placed by the copyright holder saying it may be distributed+under the terms of this General Public License.  The "Program", below,+refers to any such program or work, and a "work based on the Program"+means either the Program or any derivative work under copyright law:+that is to say, a work containing the Program or a portion of it,+either verbatim or with modifications and/or translated into another+language.  (Hereinafter, translation is included without limitation in+the term "modification".)  Each licensee is addressed as "you".++Activities other than copying, distribution and modification are not+covered by this License; they are outside its scope.  The act of+running the Program is not restricted, and the output from the Program+is covered only if its contents constitute a work based on the+Program (independent of having been made by running the Program).+Whether that is true depends on what the Program does.++  1. You may copy and distribute verbatim copies of the Program's+source code as you receive it, in any medium, provided that you+conspicuously and appropriately publish on each copy an appropriate+copyright notice and disclaimer of warranty; keep intact all the+notices that refer to this License and to the absence of any warranty;+and give any other recipients of the Program a copy of this License+along with the Program.++You may charge a fee for the physical act of transferring a copy, and+you may at your option offer warranty protection in exchange for a fee.++  2. You may modify your copy or copies of the Program or any portion+of it, thus forming a work based on the Program, and copy and+distribute such modifications or work under the terms of Section 1+above, provided that you also meet all of these conditions:++    a) You must cause the modified files to carry prominent notices+    stating that you changed the files and the date of any change.++    b) You must cause any work that you distribute or publish, that in+    whole or in part contains or is derived from the Program or any+    part thereof, to be licensed as a whole at no charge to all third+    parties under the terms of this License.++    c) If the modified program normally reads commands interactively+    when run, you must cause it, when started running for such+    interactive use in the most ordinary way, to print or display an+    announcement including an appropriate copyright notice and a+    notice that there is no warranty (or else, saying that you provide+    a warranty) and that users may redistribute the program under+    these conditions, and telling the user how to view a copy of this+    License.  (Exception: if the Program itself is interactive but+    does not normally print such an announcement, your work based on+    the Program is not required to print an announcement.)++These requirements apply to the modified work as a whole.  If+identifiable sections of that work are not derived from the Program,+and can be reasonably considered independent and separate works in+themselves, then this License, and its terms, do not apply to those+sections when you distribute them as separate works.  But when you+distribute the same sections as part of a whole which is a work based+on the Program, the distribution of the whole must be on the terms of+this License, whose permissions for other licensees extend to the+entire whole, and thus to each and every part regardless of who wrote it.++Thus, it is not the intent of this section to claim rights or contest+your rights to work written entirely by you; rather, the intent is to+exercise the right to control the distribution of derivative or+collective works based on the Program.++In addition, mere aggregation of another work not based on the Program+with the Program (or with a work based on the Program) on a volume of+a storage or distribution medium does not bring the other work under+the scope of this License.++  3. You may copy and distribute the Program (or a work based on it,+under Section 2) in object code or executable form under the terms of+Sections 1 and 2 above provided that you also do one of the following:++    a) Accompany it with the complete corresponding machine-readable+    source code, which must be distributed under the terms of Sections+    1 and 2 above on a medium customarily used for software interchange; or,++    b) Accompany it with a written offer, valid for at least three+    years, to give any third party, for a charge no more than your+    cost of physically performing source distribution, a complete+    machine-readable copy of the corresponding source code, to be+    distributed under the terms of Sections 1 and 2 above on a medium+    customarily used for software interchange; or,++    c) Accompany it with the information you received as to the offer+    to distribute corresponding source code.  (This alternative is+    allowed only for noncommercial distribution and only if you+    received the program in object code or executable form with such+    an offer, in accord with Subsection b above.)++The source code for a work means the preferred form of the work for+making modifications to it.  For an executable work, complete source+code means all the source code for all modules it contains, plus any+associated interface definition files, plus the scripts used to+control compilation and installation of the executable.  However, as a+special exception, the source code distributed need not include+anything that is normally distributed (in either source or binary+form) with the major components (compiler, kernel, and so on) of the+operating system on which the executable runs, unless that component+itself accompanies the executable.++If distribution of executable or object code is made by offering+access to copy from a designated place, then offering equivalent+access to copy the source code from the same place counts as+distribution of the source code, even though third parties are not+compelled to copy the source along with the object code.++  4. You may not copy, modify, sublicense, or distribute the Program+except as expressly provided under this License.  Any attempt+otherwise to copy, modify, sublicense or distribute the Program is+void, and will automatically terminate your rights under this License.+However, parties who have received copies, or rights, from you under+this License will not have their licenses terminated so long as such+parties remain in full compliance.++  5. You are not required to accept this License, since you have not+signed it.  However, nothing else grants you permission to modify or+distribute the Program or its derivative works.  These actions are+prohibited by law if you do not accept this License.  Therefore, by+modifying or distributing the Program (or any work based on the+Program), you indicate your acceptance of this License to do so, and+all its terms and conditions for copying, distributing or modifying+the Program or works based on it.++  6. Each time you redistribute the Program (or any work based on the+Program), the recipient automatically receives a license from the+original licensor to copy, distribute or modify the Program subject to+these terms and conditions.  You may not impose any further+restrictions on the recipients' exercise of the rights granted herein.+You are not responsible for enforcing compliance by third parties to+this License.++  7. If, as a consequence of a court judgment or allegation of patent+infringement or for any other reason (not limited to patent issues),+conditions are imposed on you (whether by court order, agreement or+otherwise) that contradict the conditions of this License, they do not+excuse you from the conditions of this License.  If you cannot+distribute so as to satisfy simultaneously your obligations under this+License and any other pertinent obligations, then as a consequence you+may not distribute the Program at all.  For example, if a patent+license would not permit royalty-free redistribution of the Program by+all those who receive copies directly or indirectly through you, then+the only way you could satisfy both it and this License would be to+refrain entirely from distribution of the Program.++If any portion of this section is held invalid or unenforceable under+any particular circumstance, the balance of the section is intended to+apply and the section as a whole is intended to apply in other+circumstances.++It is not the purpose of this section to induce you to infringe any+patents or other property right claims or to contest validity of any+such claims; this section has the sole purpose of protecting the+integrity of the free software distribution system, which is+implemented by public license practices.  Many people have made+generous contributions to the wide range of software distributed+through that system in reliance on consistent application of that+system; it is up to the author/donor to decide if he or she is willing+to distribute software through any other system and a licensee cannot+impose that choice.++This section is intended to make thoroughly clear what is believed to+be a consequence of the rest of this License.++  8. If the distribution and/or use of the Program is restricted in+certain countries either by patents or by copyrighted interfaces, the+original copyright holder who places the Program under this License+may add an explicit geographical distribution limitation excluding+those countries, so that distribution is permitted only in or among+countries not thus excluded.  In such case, this License incorporates+the limitation as if written in the body of this License.++  9. The Free Software Foundation may publish revised and/or new versions+of the General Public License from time to time.  Such new versions will+be similar in spirit to the present version, but may differ in detail to+address new problems or concerns.++Each version is given a distinguishing version number.  If the Program+specifies a version number of this License which applies to it and "any+later version", you have the option of following the terms and conditions+either of that version or of any later version published by the Free+Software Foundation.  If the Program does not specify a version number of+this License, you may choose any version ever published by the Free Software+Foundation.++  10. If you wish to incorporate parts of the Program into other free+programs whose distribution conditions are different, write to the author+to ask for permission.  For software which is copyrighted by the Free+Software Foundation, write to the Free Software Foundation; we sometimes+make exceptions for this.  Our decision will be guided by the two goals+of preserving the free status of all derivatives of our free software and+of promoting the sharing and reuse of software generally.++                     NO WARRANTY++  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,+REPAIR OR CORRECTION.++  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE+POSSIBILITY OF SUCH DAMAGES.++              END OF TERMS AND CONDITIONS++     How to Apply These Terms to Your New Programs++  If you develop a new program, and you want it to be of the greatest+possible use to the public, the best way to achieve this is to make it+free software which everyone can redistribute and change under these terms.++  To do so, attach the following notices to the program.  It is safest+to attach them to the start of each source file to most effectively+convey the exclusion of warranty; and each file should have at least+the "copyright" line and a pointer to where the full notice is found.++    <one line to give the program's name and a brief idea of what it does.>+    Copyright (C) <year>  <name of author>++    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.++Also add information on how to contact you by electronic and paper mail.++If the program is interactive, make it output a short notice like this+when it starts in an interactive mode:++    Gnomovision version 69, Copyright (C) year name of author+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+    This is free software, and you are welcome to redistribute it+    under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License.  Of course, the commands you use may+be called something other than `show w' and `show c'; they could even be+mouse-clicks or menu items--whatever suits your program.++You should also get your employer (if you work as a programmer) or your+school, if any, to sign a "copyright disclaimer" for the program, if+necessary.  Here is a sample; alter the names:++  Yoyodyne, Inc., hereby disclaims all copyright interest in the program+  `Gnomovision' (which makes passes at compilers) written by James Hacker.++  <signature of Ty Coon>, 1 April 1989+  Ty Coon, President of Vice++This General Public License does not permit incorporating your program into+proprietary programs.  If your program is a subroutine library, you may+consider it more useful to permit linking proprietary applications with the+library.  If this is what you want to do, use the GNU Lesser General+Public License instead of this License.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ cctools-workqueue.cabal view
@@ -0,0 +1,145 @@+-- -*- indent-tabs-mode: nil -*- --+-- Initial hs-cctools-workqueue.cabal generated by cabal init.  For further+--  documentation, see http://haskell.org/cabal/users-guide/++name:                cctools-workqueue+version:             3.6.1.0.1.0.0++synopsis:            High-level interface to CCTools' WorkQueue library++description:         This package provides a high-level Haskell interface to the WorkQueue library:+                     <http://www.nd.edu/~ccl/software/workqueue/>+                     .+                     .+                     Work Queue is a framework for building large+                     master-worker applications that span many+                     computers including clusters, clouds, and+                     grids. Work Queue applications are written in C,+                     Perl, or Python using a simple API that allows+                     users to define tasks, submit them to the queue,+                     and wait for completion. Tasks are executed by a+                     standard worker process that can run on any+                     available machine. Each worker calls home to the+                     master process, arranges for data transfer, and+                     executes the tasks. Together, the master and+                     worker handle a wide variety of failures,+                     allowing for dynamically scalable and robust+                     applications.+                     .+                     <<http://www.nd.edu/~ccl/software/workqueue/wq-small.gif>>+                     .+                     .+                     Example usage:+                     .+                     By default the master listens on 9123 on the localhost host.+                     Start a worker:+                     .+                     > $ work_queue_worker -d all localhost 9123+                     .+                     Now we can execute the following master program:+                     .+ > module Main where+ > + > import Control.Distributed.CCTools.WorkQueue+ > + > import Control.Applicative ((<$>))+ > import qualified Data.ByteString.Char8 as BS (pack, putStrLn)+ > import Foreign.C.String (newCStringLen)+ > import Control.Monad (forM_)+ > + > + > + > mktask :: Show a => a -> IO Task+ > mktask v = do+ >   let script = BS.pack . unlines $ [+ >               "t=$(echo $RANDOM % 10 | bc)"+ >             , "sleep $t"+ >             , "echo " ++ show v+ >             ]+ >   t <- task $ cmd "bash script.sh"+ >   specifyBuffer t script (remote "script.sh") False+ >   specifyTag    t $ show v+ >   return t+ > + > printStats :: WorkQueue -> IO ()+ > printStats q = do+ >   s <- getStats q+ >   print $ map ($ s) [tasksRunning, tasksWaiting, tasksComplete]+ > + > processResult :: WorkQueue -> Task -> IO ()+ > processResult q r = do+ >   putStrLn $ "Got: " ++ show (tag r)+ >   BS.putStrLn . output $ r+ >   delete r+ > + > main = do+ >   setDebugFlags [All]+ >   q  <- workqueue defaultQParams+ >   ts <- mapM mktask [1..10]+ >   forM_ ts (submit q)+ > + >   eventLoop q (seconds 1) printStats processResult+ > + >   putStrLn "Done!"+++++license:             GPL-2+license-file:        LICENSE+author:              Badi' Abdul-Wahid+maintainer:          abdulwahidc@gmail.com+-- copyright:           +category:            Distributed Computing+build-type:          Simple+cabal-version:       >=1.8++homepage:            http://bitbucket.org/badi/hs-cctools-workqueue++source-repository head+  type:              git+  location:          git@bitbucket.org:badi/hs-cctools-workqueue.git++++flag warn+  description:       Turn on warnings+  default:           False++library+  exposed-modules:     Control.Distributed.CCTools.WorkQueue.Task+                     , Control.Distributed.CCTools.WorkQueue.Types+                     , Control.Distributed.CCTools.WorkQueue.WorkQueue+                     , Control.Distributed.CCTools.WorkQueue.Debug+                     , Control.Distributed.CCTools.WorkQueue++  other-modules:       Control.Distributed.CCTools.WorkQueue.Internal.Cast+                     , Control.Distributed.CCTools.WorkQueue.Internal.Types+                     , Control.Distributed.CCTools.WorkQueue.Internal.CastInstances+                     , Control.Distributed.CCTools.WorkQueue.Internal.Task+                     , Control.Distributed.CCTools.WorkQueue.Internal.WorkQueue+                     , Control.Distributed.CCTools.WorkQueue.Internal.Debug+++  if impl(ghc == 7.4.*)+    build-depends:     base ==4.5.*++  if impl(ghc == 7.6.*)+    build-depends:     base ==4.6.*++  build-depends:       bindings-cctools == 3.6.1.0.1.0.0+                     , lens+                     , unix+                     , bytestring+                     , monad-loops++  extra-libraries:   dttools++  ghc-options:       -O3 -funbox-strict-fields++  if flag(warn)+    ghc-options:     -W+                     -fwarn-duplicate-exports -fwarn-incomplete-patterns -fwarn-incomplete-uni-patterns+                     -fwarn-incomplete-record-updates -fwarn-missing-fields -fwarn-missing-signatures+                     -fwarn-name-shadowing -fwarn-tabs -fwarn-unused-imports -fwarn-unused-matches+                     -fwarn-warnings-deprecations