import Control.Monad
import Control.Monad.State
import Control.Monad.Trans
+from Text import class Text(concat), instance Text String
import ASDS.Source
import ASDS.Lens
import ASDS.Select
import ASDS.Parallel
-sds :: (sds m p r w) -> SDS m p r w | read, write, observe sds & Monad m
-sds s = SDS s (pure ())
+sds :: (sds m p r w) -> SDS m p r w | read, write, identity, observe sds & Monad m
+sds s = SDS s
-instance read SDS where read (SDS s _) p = read s p
-instance write SDS where write (SDS sds _) p w = write sds p w
-instance observe SDS
-where
- identity (SDS sds _) c = identity sds c
- observe (SDS sds _) p oid handle = observe sds p oid handle
+instance read SDS where read (SDS s) p = read s p
+instance write SDS where write (SDS sds) p w = write sds p w
+instance identity SDS where identity (SDS sds) c = identity sds c
+instance observe SDS where observe (SDS sds) p oid handle = observe sds p oid handle
getShare :: (sds m () r w) -> PViewT m r | Monad m & read sds & TC r & TC w
getShare s = read s () >>= \v->case v of
updShare :: (r -> w) (sds m () r w) -> PViewT m w | Monad m & read sds & write sds & TC r & TC w
updShare f s = f <$> getShare s >>= \v->setShare v s >>| liftT (pure v)
-trigger :: (p -> Bool) -> PViewT m () | TC p & Monad m
-trigger inv = gets (filter (match inv)) >>= mapM_ run
+trigger :: (v m p r w) (p -> Bool) -> PViewT m () | identity v & TC p & Monad m
+trigger sds inv = gets (filter (match (concat (identity sds [])) inv)) >>= mapM_ run
where
- match :: (p -> Bool) (NRequest m) -> Bool | TC p
- match inv (NRequest oid ohnd (a :: p^)) = inv a
- match _ _ = False
+ match :: String (p -> Bool) (NRequest m) -> Bool | TC p
+ match id inv (NRequest oid ohnd (a :: p^)) = id == oid && inv a
+ match _ _ _ = False
run :: (NRequest m) -> PViewT m () | Monad m
run (NRequest oid ohnd _) = liftT ohnd