Safe Haskell	Safe-Inferred
Language	Haskell2010

GHCJS.Concurrent

Synopsis

data OnBlocked
- = ContinueAsync
- | ThrowWouldBlock
data WouldBlockException = WouldBlockException

Documentation

data OnBlocked Source #

The runtime tries to run synchronous threads to completion. Sometimes it's not possible to continue running a thread, for example when the thread tries to take an empty MVar. The runtime can then either throw a WouldBlockException, aborting the blocking action, or continue the thread asynchronously.

Constructors

ContinueAsync	continue the thread asynchronously if blocked
ThrowWouldBlock	throw `WouldBlockException` if blocked

Instances

Instances details

Data OnBlocked Source #
Instance details Defined in GHCJS.Concurrent Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OnBlocked -> c OnBlocked # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OnBlocked # toConstr :: OnBlocked -> Constr # dataTypeOf :: OnBlocked -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c OnBlocked) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OnBlocked) # gmapT :: (forall b. Data b => b -> b) -> OnBlocked -> OnBlocked # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OnBlocked -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OnBlocked -> r # gmapQ :: (forall d. Data d => d -> u) -> OnBlocked -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> OnBlocked -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OnBlocked -> m OnBlocked # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OnBlocked -> m OnBlocked # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OnBlocked -> m OnBlocked #
Enum OnBlocked Source #
Instance details Defined in GHCJS.Concurrent Methods succ :: OnBlocked -> OnBlocked # pred :: OnBlocked -> OnBlocked # toEnum :: Int -> OnBlocked # fromEnum :: OnBlocked -> Int # enumFrom :: OnBlocked -> [OnBlocked] # enumFromThen :: OnBlocked -> OnBlocked -> [OnBlocked] # enumFromTo :: OnBlocked -> OnBlocked -> [OnBlocked] # enumFromThenTo :: OnBlocked -> OnBlocked -> OnBlocked -> [OnBlocked] #
Show OnBlocked Source #
Instance details Defined in GHCJS.Concurrent Methods showsPrec :: Int -> OnBlocked -> ShowS # show :: OnBlocked -> String # showList :: [OnBlocked] -> ShowS #
Eq OnBlocked Source #
Instance details Defined in GHCJS.Concurrent Methods (==) :: OnBlocked -> OnBlocked -> Bool # (/=) :: OnBlocked -> OnBlocked -> Bool #
Ord OnBlocked Source #
Instance details Defined in GHCJS.Concurrent Methods compare :: OnBlocked -> OnBlocked -> Ordering # (<) :: OnBlocked -> OnBlocked -> Bool # (<=) :: OnBlocked -> OnBlocked -> Bool # (>) :: OnBlocked -> OnBlocked -> Bool # (>=) :: OnBlocked -> OnBlocked -> Bool # max :: OnBlocked -> OnBlocked -> OnBlocked # min :: OnBlocked -> OnBlocked -> OnBlocked #

data WouldBlockException Source #

If a synchronous thread tries to do something that can only be done asynchronously, and the thread is set up to not continue asynchronously, it receives this exception.

Constructors

WouldBlockException

Instances

Instances details

Exception WouldBlockException Source #
Instance details Defined in GHCJS.Prim.Internal Methods toException :: WouldBlockException -> SomeException # fromException :: SomeException -> Maybe WouldBlockException # displayException :: WouldBlockException -> String #
Show WouldBlockException Source #
Instance details Defined in GHCJS.Prim.Internal Methods showsPrec :: Int -> WouldBlockException -> ShowS # show :: WouldBlockException -> String # showList :: [WouldBlockException] -> ShowS #