ghc-9.0.0.20201227: The GHC API
Safe HaskellNone
LanguageHaskell2010

GHC.Types.ForeignCall

Synopsis

Documentation

newtype ForeignCall Source #

Constructors

CCall CCallSpec 

Instances

Instances details
Eq ForeignCall # 
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Defined in GHC.Types.ForeignCall

Outputable ForeignCall # 
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Defined in GHC.Types.ForeignCall

Binary ForeignCall # 
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Defined in GHC.Types.ForeignCall

data Safety Source #

Constructors

PlaySafe

Might invoke Haskell GC, or do a call back, or switch threads, etc. So make sure things are tidy before the call. Additionally, in the threaded RTS we arrange for the external call to be executed by a separate OS thread, i.e., _concurrently_ to the execution of other Haskell threads.

PlayInterruptible

Like PlaySafe, but additionally the worker thread running this foreign call may be unceremoniously killed, so it must be scheduled on an unbound thread.

PlayRisky

None of the above can happen; the call will return without interacting with the runtime system at all. Specifically:

  • No GC
  • No call backs
  • No blocking
  • No precise exceptions

Instances

Instances details
Eq Safety # 
Instance details

Defined in GHC.Types.ForeignCall

Methods

(==) :: Safety -> Safety -> Bool #

(/=) :: Safety -> Safety -> Bool #

Data Safety # 
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Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Safety -> c Safety Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Safety Source #

toConstr :: Safety -> Constr Source #

dataTypeOf :: Safety -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Safety) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Safety) Source #

gmapT :: (forall b. Data b => b -> b) -> Safety -> Safety Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Safety -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Safety -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Safety -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Safety -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Safety -> m Safety Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Safety -> m Safety Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Safety -> m Safety Source #

Show Safety # 
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Defined in GHC.Types.ForeignCall

Outputable Safety # 
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Defined in GHC.Types.ForeignCall

Binary Safety # 
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Defined in GHC.Types.ForeignCall

data CExportSpec Source #

Instances

Instances details
Data CExportSpec # 
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Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CExportSpec -> c CExportSpec Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CExportSpec Source #

toConstr :: CExportSpec -> Constr Source #

dataTypeOf :: CExportSpec -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CExportSpec) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CExportSpec) Source #

gmapT :: (forall b. Data b => b -> b) -> CExportSpec -> CExportSpec Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CExportSpec -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CExportSpec -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> CExportSpec -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CExportSpec -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CExportSpec -> m CExportSpec Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CExportSpec -> m CExportSpec Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CExportSpec -> m CExportSpec Source #

Outputable CExportSpec # 
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Defined in GHC.Types.ForeignCall

Binary CExportSpec # 
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Defined in GHC.Types.ForeignCall

data CCallSpec Source #

Instances

Instances details
Eq CCallSpec # 
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Defined in GHC.Types.ForeignCall

Outputable CCallSpec # 
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Defined in GHC.Types.ForeignCall

Binary CCallSpec # 
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Defined in GHC.Types.ForeignCall

data CCallTarget Source #

How to call a particular function in C-land.

Instances

Instances details
Eq CCallTarget # 
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Defined in GHC.Types.ForeignCall

Data CCallTarget # 
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Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CCallTarget -> c CCallTarget Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CCallTarget Source #

toConstr :: CCallTarget -> Constr Source #

dataTypeOf :: CCallTarget -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CCallTarget) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CCallTarget) Source #

gmapT :: (forall b. Data b => b -> b) -> CCallTarget -> CCallTarget Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CCallTarget -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CCallTarget -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> CCallTarget -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CCallTarget -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CCallTarget -> m CCallTarget Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CCallTarget -> m CCallTarget Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CCallTarget -> m CCallTarget Source #

Binary CCallTarget # 
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Defined in GHC.Types.ForeignCall

data CCallConv Source #

Instances

Instances details
Eq CCallConv # 
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Defined in GHC.Types.ForeignCall

Data CCallConv # 
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Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CCallConv -> c CCallConv Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CCallConv Source #

toConstr :: CCallConv -> Constr Source #

dataTypeOf :: CCallConv -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CCallConv) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CCallConv) Source #

gmapT :: (forall b. Data b => b -> b) -> CCallConv -> CCallConv Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CCallConv -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CCallConv -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> CCallConv -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CCallConv -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CCallConv -> m CCallConv Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CCallConv -> m CCallConv Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CCallConv -> m CCallConv Source #

Outputable CCallConv # 
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Defined in GHC.Types.ForeignCall

Binary CCallConv # 
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Defined in GHC.Types.ForeignCall

data Header Source #

Instances

Instances details
Eq Header # 
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Defined in GHC.Types.ForeignCall

Methods

(==) :: Header -> Header -> Bool #

(/=) :: Header -> Header -> Bool #

Data Header # 
Instance details

Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Header -> c Header Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Header Source #

toConstr :: Header -> Constr Source #

dataTypeOf :: Header -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Header) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Header) Source #

gmapT :: (forall b. Data b => b -> b) -> Header -> Header Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Header -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Header -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Header -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Header -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Header -> m Header Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Header -> m Header Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Header -> m Header Source #

Outputable Header # 
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Defined in GHC.Types.ForeignCall

Binary Header # 
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Defined in GHC.Types.ForeignCall

data CType Source #

A C type, used in CAPI FFI calls

Instances

Instances details
Eq CType # 
Instance details

Defined in GHC.Types.ForeignCall

Methods

(==) :: CType -> CType -> Bool #

(/=) :: CType -> CType -> Bool #

Data CType # 
Instance details

Defined in GHC.Types.ForeignCall

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CType -> c CType Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CType Source #

toConstr :: CType -> Constr Source #

dataTypeOf :: CType -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CType) Source #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CType) Source #

gmapT :: (forall b. Data b => b -> b) -> CType -> CType Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CType -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CType -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> CType -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CType -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CType -> m CType Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CType -> m CType Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CType -> m CType Source #

Outputable CType # 
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Defined in GHC.Types.ForeignCall

Binary CType # 
Instance details

Defined in GHC.Types.ForeignCall