{-# LANGUAGE TypeApplications #-} -- | Copyright : Will Thompson, Iñaki García Etxebarria and Jonas Platte -- License : LGPL-2.1 -- Maintainer : Iñaki García Etxebarria -- -- A t'GI.Gio.Interfaces.DatagramBased.DatagramBased' is a networking interface for representing datagram-based -- communications. It is a more or less direct mapping of the core parts of the -- BSD socket API in a portable GObject interface. It is implemented by -- t'GI.Gio.Objects.Socket.Socket', which wraps the UNIX socket API on UNIX and winsock2 on Windows. -- -- t'GI.Gio.Interfaces.DatagramBased.DatagramBased' is entirely platform independent, and is intended to be used -- alongside higher-level networking APIs such as t'GI.Gio.Objects.IOStream.IOStream'. -- -- It uses vectored scatter\/gather I\/O by default, allowing for many messages -- to be sent or received in a single call. Where possible, implementations of -- the interface should take advantage of vectored I\/O to minimise processing -- or system calls. For example, t'GI.Gio.Objects.Socket.Socket' uses @/recvmmsg()/@ and @/sendmmsg()/@ where -- possible. Callers should take advantage of scatter\/gather I\/O (the use of -- multiple buffers per message) to avoid unnecessary copying of data to -- assemble or disassemble a message. -- -- Each t'GI.Gio.Interfaces.DatagramBased.DatagramBased' operation has a timeout parameter which may be negative -- for blocking behaviour, zero for non-blocking behaviour, or positive for -- timeout behaviour. A blocking operation blocks until finished or there is an -- error. A non-blocking operation will return immediately with a -- 'GI.Gio.Enums.IOErrorEnumWouldBlock' error if it cannot make progress. A timeout operation -- will block until the operation is complete or the timeout expires; if the -- timeout expires it will return what progress it made, or -- 'GI.Gio.Enums.IOErrorEnumTimedOut' if no progress was made. To know when a call would -- successfully run you can call 'GI.Gio.Interfaces.DatagramBased.datagramBasedConditionCheck' or -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedConditionWait'. You can also use -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedCreateSource' and attach it to a t'GI.GLib.Structs.MainContext.MainContext' to get -- callbacks when I\/O is possible. -- -- When running a non-blocking operation applications should always be able to -- handle getting a 'GI.Gio.Enums.IOErrorEnumWouldBlock' error even when some other function -- said that I\/O was possible. This can easily happen in case of a race -- condition in the application, but it can also happen for other reasons. For -- instance, on Windows a socket is always seen as writable until a write -- returns 'GI.Gio.Enums.IOErrorEnumWouldBlock'. -- -- As with t'GI.Gio.Objects.Socket.Socket', @/GDatagramBaseds/@ can be either connection oriented (for -- example, SCTP) or connectionless (for example, UDP). @/GDatagramBaseds/@ must be -- datagram-based, not stream-based. The interface does not cover connection -- establishment — use methods on the underlying type to establish a connection -- before sending and receiving data through the t'GI.Gio.Interfaces.DatagramBased.DatagramBased' API. For -- connectionless socket types the target\/source address is specified or -- received in each I\/O operation. -- -- Like most other APIs in GLib, t'GI.Gio.Interfaces.DatagramBased.DatagramBased' is not inherently thread safe. -- To use a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' concurrently from multiple threads, you must -- implement your own locking. -- -- /Since: 2.48/ #if (MIN_VERSION_haskell_gi_overloading(1,0,0) && !defined(__HADDOCK_VERSION__)) #define ENABLE_OVERLOADING #endif module GI.Gio.Interfaces.DatagramBased ( -- * Exported types DatagramBased(..) , noDatagramBased , IsDatagramBased , toDatagramBased , -- * Methods -- ** Overloaded methods #method:Overloaded methods# #if defined(ENABLE_OVERLOADING) ResolveDatagramBasedMethod , #endif -- ** conditionCheck #method:conditionCheck# #if defined(ENABLE_OVERLOADING) DatagramBasedConditionCheckMethodInfo , #endif datagramBasedConditionCheck , -- ** conditionWait #method:conditionWait# #if defined(ENABLE_OVERLOADING) DatagramBasedConditionWaitMethodInfo , #endif datagramBasedConditionWait , -- ** createSource #method:createSource# #if defined(ENABLE_OVERLOADING) DatagramBasedCreateSourceMethodInfo , #endif datagramBasedCreateSource , -- ** receiveMessages #method:receiveMessages# #if defined(ENABLE_OVERLOADING) DatagramBasedReceiveMessagesMethodInfo , #endif datagramBasedReceiveMessages , -- ** sendMessages #method:sendMessages# #if defined(ENABLE_OVERLOADING) DatagramBasedSendMessagesMethodInfo , #endif datagramBasedSendMessages , ) where import Data.GI.Base.ShortPrelude import qualified Data.GI.Base.ShortPrelude as SP import qualified Data.GI.Base.Overloading as O import qualified Prelude as P import qualified Data.GI.Base.Attributes as GI.Attributes import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr import qualified Data.GI.Base.GClosure as B.GClosure import qualified Data.GI.Base.GError as B.GError import qualified Data.GI.Base.GVariant as B.GVariant import qualified Data.GI.Base.GValue as B.GValue import qualified Data.GI.Base.GParamSpec as B.GParamSpec import qualified Data.GI.Base.CallStack as B.CallStack import qualified Data.GI.Base.Properties as B.Properties import qualified Data.GI.Base.Signals as B.Signals import qualified Data.Text as T import qualified Data.ByteString.Char8 as B import qualified Data.Map as Map import qualified Foreign.Ptr as FP import qualified GHC.OverloadedLabels as OL import qualified GI.GLib.Flags as GLib.Flags import qualified GI.GLib.Structs.Source as GLib.Source import qualified GI.GObject.Objects.Object as GObject.Object import {-# SOURCE #-} qualified GI.Gio.Objects.Cancellable as Gio.Cancellable import {-# SOURCE #-} qualified GI.Gio.Structs.InputMessage as Gio.InputMessage import {-# SOURCE #-} qualified GI.Gio.Structs.OutputMessage as Gio.OutputMessage -- interface DatagramBased -- | Memory-managed wrapper type. newtype DatagramBased = DatagramBased (ManagedPtr DatagramBased) deriving (DatagramBased -> DatagramBased -> Bool (DatagramBased -> DatagramBased -> Bool) -> (DatagramBased -> DatagramBased -> Bool) -> Eq DatagramBased forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a /= :: DatagramBased -> DatagramBased -> Bool $c/= :: DatagramBased -> DatagramBased -> Bool == :: DatagramBased -> DatagramBased -> Bool $c== :: DatagramBased -> DatagramBased -> Bool Eq) -- | A convenience alias for `Nothing` :: `Maybe` `DatagramBased`. noDatagramBased :: Maybe DatagramBased noDatagramBased :: Maybe DatagramBased noDatagramBased = Maybe DatagramBased forall a. Maybe a Nothing #if defined(ENABLE_OVERLOADING) type instance O.SignalList DatagramBased = DatagramBasedSignalList type DatagramBasedSignalList = ('[ '("notify", GObject.Object.ObjectNotifySignalInfo)] :: [(Symbol, *)]) #endif foreign import ccall "g_datagram_based_get_type" c_g_datagram_based_get_type :: IO GType instance GObject DatagramBased where gobjectType :: IO GType gobjectType = IO GType c_g_datagram_based_get_type -- | Convert 'DatagramBased' to and from 'Data.GI.Base.GValue.GValue' with 'Data.GI.Base.GValue.toGValue' and 'Data.GI.Base.GValue.fromGValue'. instance B.GValue.IsGValue DatagramBased where toGValue :: DatagramBased -> IO GValue toGValue o :: DatagramBased o = do GType gtype <- IO GType c_g_datagram_based_get_type DatagramBased -> (Ptr DatagramBased -> IO GValue) -> IO GValue forall a c. (HasCallStack, ManagedPtrNewtype a) => a -> (Ptr a -> IO c) -> IO c B.ManagedPtr.withManagedPtr DatagramBased o (GType -> (GValue -> Ptr DatagramBased -> IO ()) -> Ptr DatagramBased -> IO GValue forall a. GType -> (GValue -> a -> IO ()) -> a -> IO GValue B.GValue.buildGValue GType gtype GValue -> Ptr DatagramBased -> IO () forall a. GObject a => GValue -> Ptr a -> IO () B.GValue.set_object) fromGValue :: GValue -> IO DatagramBased fromGValue gv :: GValue gv = do Ptr DatagramBased ptr <- GValue -> IO (Ptr DatagramBased) forall b. GObject b => GValue -> IO (Ptr b) B.GValue.get_object GValue gv :: IO (Ptr DatagramBased) (ManagedPtr DatagramBased -> DatagramBased) -> Ptr DatagramBased -> IO DatagramBased forall a b. (HasCallStack, GObject a, GObject b) => (ManagedPtr a -> a) -> Ptr b -> IO a B.ManagedPtr.newObject ManagedPtr DatagramBased -> DatagramBased DatagramBased Ptr DatagramBased ptr -- | Type class for types which can be safely cast to `DatagramBased`, for instance with `toDatagramBased`. class (GObject o, O.IsDescendantOf DatagramBased o) => IsDatagramBased o instance (GObject o, O.IsDescendantOf DatagramBased o) => IsDatagramBased o instance O.HasParentTypes DatagramBased type instance O.ParentTypes DatagramBased = '[GObject.Object.Object] -- | Cast to `DatagramBased`, for types for which this is known to be safe. For general casts, use `Data.GI.Base.ManagedPtr.castTo`. toDatagramBased :: (MonadIO m, IsDatagramBased o) => o -> m DatagramBased toDatagramBased :: o -> m DatagramBased toDatagramBased = IO DatagramBased -> m DatagramBased forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO DatagramBased -> m DatagramBased) -> (o -> IO DatagramBased) -> o -> m DatagramBased forall b c a. (b -> c) -> (a -> b) -> a -> c . (ManagedPtr DatagramBased -> DatagramBased) -> o -> IO DatagramBased forall o o'. (HasCallStack, GObject o, GObject o') => (ManagedPtr o' -> o') -> o -> IO o' unsafeCastTo ManagedPtr DatagramBased -> DatagramBased DatagramBased #if defined(ENABLE_OVERLOADING) instance O.HasAttributeList DatagramBased type instance O.AttributeList DatagramBased = DatagramBasedAttributeList type DatagramBasedAttributeList = ('[ ] :: [(Symbol, *)]) #endif #if defined(ENABLE_OVERLOADING) #endif #if defined(ENABLE_OVERLOADING) type family ResolveDatagramBasedMethod (t :: Symbol) (o :: *) :: * where ResolveDatagramBasedMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo ResolveDatagramBasedMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo ResolveDatagramBasedMethod "conditionCheck" o = DatagramBasedConditionCheckMethodInfo ResolveDatagramBasedMethod "conditionWait" o = DatagramBasedConditionWaitMethodInfo ResolveDatagramBasedMethod "createSource" o = DatagramBasedCreateSourceMethodInfo ResolveDatagramBasedMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo ResolveDatagramBasedMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo ResolveDatagramBasedMethod "getv" o = GObject.Object.ObjectGetvMethodInfo ResolveDatagramBasedMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo ResolveDatagramBasedMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo ResolveDatagramBasedMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo ResolveDatagramBasedMethod "receiveMessages" o = DatagramBasedReceiveMessagesMethodInfo ResolveDatagramBasedMethod "ref" o = GObject.Object.ObjectRefMethodInfo ResolveDatagramBasedMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo ResolveDatagramBasedMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo ResolveDatagramBasedMethod "sendMessages" o = DatagramBasedSendMessagesMethodInfo ResolveDatagramBasedMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo ResolveDatagramBasedMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo ResolveDatagramBasedMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo ResolveDatagramBasedMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo ResolveDatagramBasedMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo ResolveDatagramBasedMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo ResolveDatagramBasedMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo ResolveDatagramBasedMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo ResolveDatagramBasedMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo ResolveDatagramBasedMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo ResolveDatagramBasedMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo ResolveDatagramBasedMethod l o = O.MethodResolutionFailed l o instance (info ~ ResolveDatagramBasedMethod t DatagramBased, O.MethodInfo info DatagramBased p) => OL.IsLabel t (DatagramBased -> p) where #if MIN_VERSION_base(4,10,0) fromLabel = O.overloadedMethod @info #else fromLabel _ = O.overloadedMethod @info #endif #endif -- method DatagramBased::condition_check -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "datagram_based" -- , argType = -- TInterface Name { namespace = "Gio" , name = "DatagramBased" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GDatagramBased" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "condition" -- , argType = -- TInterface Name { namespace = "GLib" , name = "IOCondition" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GIOCondition mask to check" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- Lengths: [] -- returnType: Just -- (TInterface Name { namespace = "GLib" , name = "IOCondition" }) -- throws : False -- Skip return : False foreign import ccall "g_datagram_based_condition_check" g_datagram_based_condition_check :: Ptr DatagramBased -> -- datagram_based : TInterface (Name {namespace = "Gio", name = "DatagramBased"}) CUInt -> -- condition : TInterface (Name {namespace = "GLib", name = "IOCondition"}) IO CUInt -- | Checks on the readiness of /@datagramBased@/ to perform operations. The -- operations specified in /@condition@/ are checked for and masked against the -- currently-satisfied conditions on /@datagramBased@/. The result is returned. -- -- 'GI.GLib.Flags.IOConditionIn' will be set in the return value if data is available to read with -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedReceiveMessages', or if the connection is closed remotely -- (EOS); and if the datagram_based has not been closed locally using some -- implementation-specific method (such as 'GI.Gio.Objects.Socket.socketClose' or -- 'GI.Gio.Objects.Socket.socketShutdown' with /@shutdownRead@/ set, if it’s a t'GI.Gio.Objects.Socket.Socket'). -- -- If the connection is shut down or closed (by calling 'GI.Gio.Objects.Socket.socketClose' or -- 'GI.Gio.Objects.Socket.socketShutdown' with /@shutdownRead@/ set, if it’s a t'GI.Gio.Objects.Socket.Socket', for -- example), all calls to this function will return 'GI.Gio.Enums.IOErrorEnumClosed'. -- -- 'GI.GLib.Flags.IOConditionOut' will be set if it is expected that at least one byte can be sent -- using 'GI.Gio.Interfaces.DatagramBased.datagramBasedSendMessages' without blocking. It will not be set -- if the datagram_based has been closed locally. -- -- 'GI.GLib.Flags.IOConditionHup' will be set if the connection has been closed locally. -- -- 'GI.GLib.Flags.IOConditionErr' will be set if there was an asynchronous error in transmitting data -- previously enqueued using 'GI.Gio.Interfaces.DatagramBased.datagramBasedSendMessages'. -- -- Note that on Windows, it is possible for an operation to return -- 'GI.Gio.Enums.IOErrorEnumWouldBlock' even immediately after -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedConditionCheck' has claimed that the t'GI.Gio.Interfaces.DatagramBased.DatagramBased' is -- ready for writing. Rather than calling 'GI.Gio.Interfaces.DatagramBased.datagramBasedConditionCheck' and -- then writing to the t'GI.Gio.Interfaces.DatagramBased.DatagramBased' if it succeeds, it is generally better to -- simply try writing right away, and try again later if the initial attempt -- returns 'GI.Gio.Enums.IOErrorEnumWouldBlock'. -- -- It is meaningless to specify 'GI.GLib.Flags.IOConditionErr' or 'GI.GLib.Flags.IOConditionHup' in /@condition@/; these -- conditions will always be set in the output if they are true. Apart from -- these flags, the output is guaranteed to be masked by /@condition@/. -- -- This call never blocks. -- -- /Since: 2.48/ datagramBasedConditionCheck :: (B.CallStack.HasCallStack, MonadIO m, IsDatagramBased a) => a -- ^ /@datagramBased@/: a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' -> [GLib.Flags.IOCondition] -- ^ /@condition@/: a t'GI.GLib.Flags.IOCondition' mask to check -> m [GLib.Flags.IOCondition] -- ^ __Returns:__ the t'GI.GLib.Flags.IOCondition' mask of the current state datagramBasedConditionCheck :: a -> [IOCondition] -> m [IOCondition] datagramBasedConditionCheck datagramBased :: a datagramBased condition :: [IOCondition] condition = IO [IOCondition] -> m [IOCondition] forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO [IOCondition] -> m [IOCondition]) -> IO [IOCondition] -> m [IOCondition] forall a b. (a -> b) -> a -> b $ do Ptr DatagramBased datagramBased' <- a -> IO (Ptr DatagramBased) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a datagramBased let condition' :: CUInt condition' = [IOCondition] -> CUInt forall b a. (Num b, IsGFlag a) => [a] -> b gflagsToWord [IOCondition] condition CUInt result <- Ptr DatagramBased -> CUInt -> IO CUInt g_datagram_based_condition_check Ptr DatagramBased datagramBased' CUInt condition' let result' :: [IOCondition] result' = CUInt -> [IOCondition] forall a b. (Storable a, Integral a, Bits a, IsGFlag b) => a -> [b] wordToGFlags CUInt result a -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr a datagramBased [IOCondition] -> IO [IOCondition] forall (m :: * -> *) a. Monad m => a -> m a return [IOCondition] result' #if defined(ENABLE_OVERLOADING) data DatagramBasedConditionCheckMethodInfo instance (signature ~ ([GLib.Flags.IOCondition] -> m [GLib.Flags.IOCondition]), MonadIO m, IsDatagramBased a) => O.MethodInfo DatagramBasedConditionCheckMethodInfo a signature where overloadedMethod = datagramBasedConditionCheck #endif -- method DatagramBased::condition_wait -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "datagram_based" -- , argType = -- TInterface Name { namespace = "Gio" , name = "DatagramBased" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GDatagramBased" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "condition" -- , argType = -- TInterface Name { namespace = "GLib" , name = "IOCondition" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GIOCondition mask to wait for" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "timeout" -- , argType = TBasicType TInt64 -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "the maximum time (in microseconds) to wait, 0 to not block, or -1\n to block indefinitely" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "cancellable" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Cancellable" } -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = Just "a #GCancellable" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- Lengths: [] -- returnType: Just (TBasicType TBoolean) -- throws : True -- Skip return : False foreign import ccall "g_datagram_based_condition_wait" g_datagram_based_condition_wait :: Ptr DatagramBased -> -- datagram_based : TInterface (Name {namespace = "Gio", name = "DatagramBased"}) CUInt -> -- condition : TInterface (Name {namespace = "GLib", name = "IOCondition"}) Int64 -> -- timeout : TBasicType TInt64 Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) Ptr (Ptr GError) -> -- error IO CInt -- | Waits for up to /@timeout@/ microseconds for condition to become true on -- /@datagramBased@/. If the condition is met, 'P.True' is returned. -- -- If /@cancellable@/ is cancelled before the condition is met, or if /@timeout@/ is -- reached before the condition is met, then 'P.False' is returned and /@error@/ is -- set appropriately ('GI.Gio.Enums.IOErrorEnumCancelled' or 'GI.Gio.Enums.IOErrorEnumTimedOut'). -- -- /Since: 2.48/ datagramBasedConditionWait :: (B.CallStack.HasCallStack, MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => a -- ^ /@datagramBased@/: a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' -> [GLib.Flags.IOCondition] -- ^ /@condition@/: a t'GI.GLib.Flags.IOCondition' mask to wait for -> Int64 -- ^ /@timeout@/: the maximum time (in microseconds) to wait, 0 to not block, or -1 -- to block indefinitely -> Maybe (b) -- ^ /@cancellable@/: a t'GI.Gio.Objects.Cancellable.Cancellable' -> m () -- ^ /(Can throw 'Data.GI.Base.GError.GError')/ datagramBasedConditionWait :: a -> [IOCondition] -> Int64 -> Maybe b -> m () datagramBasedConditionWait datagramBased :: a datagramBased condition :: [IOCondition] condition timeout :: Int64 timeout cancellable :: Maybe b cancellable = IO () -> m () forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO () -> m ()) -> IO () -> m () forall a b. (a -> b) -> a -> b $ do Ptr DatagramBased datagramBased' <- a -> IO (Ptr DatagramBased) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a datagramBased let condition' :: CUInt condition' = [IOCondition] -> CUInt forall b a. (Num b, IsGFlag a) => [a] -> b gflagsToWord [IOCondition] condition Ptr Cancellable maybeCancellable <- case Maybe b cancellable of Nothing -> Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable forall a. Ptr a nullPtr Just jCancellable :: b jCancellable -> do Ptr Cancellable jCancellable' <- b -> IO (Ptr Cancellable) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr b jCancellable Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable jCancellable' IO () -> IO () -> IO () forall a b. IO a -> IO b -> IO a onException (do CInt _ <- (Ptr (Ptr GError) -> IO CInt) -> IO CInt forall a. (Ptr (Ptr GError) -> IO a) -> IO a propagateGError ((Ptr (Ptr GError) -> IO CInt) -> IO CInt) -> (Ptr (Ptr GError) -> IO CInt) -> IO CInt forall a b. (a -> b) -> a -> b $ Ptr DatagramBased -> CUInt -> Int64 -> Ptr Cancellable -> Ptr (Ptr GError) -> IO CInt g_datagram_based_condition_wait Ptr DatagramBased datagramBased' CUInt condition' Int64 timeout Ptr Cancellable maybeCancellable a -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr a datagramBased Maybe b -> (b -> IO ()) -> IO () forall (m :: * -> *) a. Monad m => Maybe a -> (a -> m ()) -> m () whenJust Maybe b cancellable b -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr () -> IO () forall (m :: * -> *) a. Monad m => a -> m a return () ) (do () -> IO () forall (m :: * -> *) a. Monad m => a -> m a return () ) #if defined(ENABLE_OVERLOADING) data DatagramBasedConditionWaitMethodInfo instance (signature ~ ([GLib.Flags.IOCondition] -> Int64 -> Maybe (b) -> m ()), MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => O.MethodInfo DatagramBasedConditionWaitMethodInfo a signature where overloadedMethod = datagramBasedConditionWait #endif -- method DatagramBased::create_source -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "datagram_based" -- , argType = -- TInterface Name { namespace = "Gio" , name = "DatagramBased" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GDatagramBased" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "condition" -- , argType = -- TInterface Name { namespace = "GLib" , name = "IOCondition" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GIOCondition mask to monitor" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "cancellable" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Cancellable" } -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = Just "a #GCancellable" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- Lengths: [] -- returnType: Just (TInterface Name { namespace = "GLib" , name = "Source" }) -- throws : False -- Skip return : False foreign import ccall "g_datagram_based_create_source" g_datagram_based_create_source :: Ptr DatagramBased -> -- datagram_based : TInterface (Name {namespace = "Gio", name = "DatagramBased"}) CUInt -> -- condition : TInterface (Name {namespace = "GLib", name = "IOCondition"}) Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) IO (Ptr GLib.Source.Source) -- | Creates a t'GI.GLib.Structs.Source.Source' that can be attached to a t'GI.GLib.Structs.MainContext.MainContext' to monitor for -- the availability of the specified /@condition@/ on the t'GI.Gio.Interfaces.DatagramBased.DatagramBased'. The -- t'GI.GLib.Structs.Source.Source' keeps a reference to the /@datagramBased@/. -- -- The callback on the source is of the t'GI.Gio.Callbacks.DatagramBasedSourceFunc' type. -- -- It is meaningless to specify 'GI.GLib.Flags.IOConditionErr' or 'GI.GLib.Flags.IOConditionHup' in /@condition@/; these -- conditions will always be reported in the callback if they are true. -- -- If non-'P.Nothing', /@cancellable@/ can be used to cancel the source, which will -- cause the source to trigger, reporting the current condition (which is -- likely 0 unless cancellation happened at the same time as a condition -- change). You can check for this in the callback using -- 'GI.Gio.Objects.Cancellable.cancellableIsCancelled'. -- -- /Since: 2.48/ datagramBasedCreateSource :: (B.CallStack.HasCallStack, MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => a -- ^ /@datagramBased@/: a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' -> [GLib.Flags.IOCondition] -- ^ /@condition@/: a t'GI.GLib.Flags.IOCondition' mask to monitor -> Maybe (b) -- ^ /@cancellable@/: a t'GI.Gio.Objects.Cancellable.Cancellable' -> m GLib.Source.Source -- ^ __Returns:__ a newly allocated t'GI.GLib.Structs.Source.Source' datagramBasedCreateSource :: a -> [IOCondition] -> Maybe b -> m Source datagramBasedCreateSource datagramBased :: a datagramBased condition :: [IOCondition] condition cancellable :: Maybe b cancellable = IO Source -> m Source forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO Source -> m Source) -> IO Source -> m Source forall a b. (a -> b) -> a -> b $ do Ptr DatagramBased datagramBased' <- a -> IO (Ptr DatagramBased) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a datagramBased let condition' :: CUInt condition' = [IOCondition] -> CUInt forall b a. (Num b, IsGFlag a) => [a] -> b gflagsToWord [IOCondition] condition Ptr Cancellable maybeCancellable <- case Maybe b cancellable of Nothing -> Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable forall a. Ptr a nullPtr Just jCancellable :: b jCancellable -> do Ptr Cancellable jCancellable' <- b -> IO (Ptr Cancellable) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr b jCancellable Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable jCancellable' Ptr Source result <- Ptr DatagramBased -> CUInt -> Ptr Cancellable -> IO (Ptr Source) g_datagram_based_create_source Ptr DatagramBased datagramBased' CUInt condition' Ptr Cancellable maybeCancellable Text -> Ptr Source -> IO () forall a. HasCallStack => Text -> Ptr a -> IO () checkUnexpectedReturnNULL "datagramBasedCreateSource" Ptr Source result Source result' <- ((ManagedPtr Source -> Source) -> Ptr Source -> IO Source forall a. (HasCallStack, BoxedObject a) => (ManagedPtr a -> a) -> Ptr a -> IO a wrapBoxed ManagedPtr Source -> Source GLib.Source.Source) Ptr Source result a -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr a datagramBased Maybe b -> (b -> IO ()) -> IO () forall (m :: * -> *) a. Monad m => Maybe a -> (a -> m ()) -> m () whenJust Maybe b cancellable b -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr Source -> IO Source forall (m :: * -> *) a. Monad m => a -> m a return Source result' #if defined(ENABLE_OVERLOADING) data DatagramBasedCreateSourceMethodInfo instance (signature ~ ([GLib.Flags.IOCondition] -> Maybe (b) -> m GLib.Source.Source), MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => O.MethodInfo DatagramBasedCreateSourceMethodInfo a signature where overloadedMethod = datagramBasedCreateSource #endif -- method DatagramBased::receive_messages -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "datagram_based" -- , argType = -- TInterface Name { namespace = "Gio" , name = "DatagramBased" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GDatagramBased" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "messages" -- , argType = -- TCArray -- False -- (-1) -- 2 -- (TInterface Name { namespace = "Gio" , name = "InputMessage" }) -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "an array of #GInputMessage structs" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "num_messages" -- , argType = TBasicType TUInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of elements in @messages" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "flags" -- , argType = TBasicType TInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "an int containing #GSocketMsgFlags flags for the overall operation" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "timeout" -- , argType = TBasicType TInt64 -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "the maximum time (in microseconds) to wait, 0 to not block, or -1\n to block indefinitely" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "cancellable" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Cancellable" } -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = Just "a %GCancellable" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- Lengths: [ Arg -- { argCName = "num_messages" -- , argType = TBasicType TUInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of elements in @messages" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- returnType: Just (TBasicType TInt) -- throws : True -- Skip return : False foreign import ccall "g_datagram_based_receive_messages" g_datagram_based_receive_messages :: Ptr DatagramBased -> -- datagram_based : TInterface (Name {namespace = "Gio", name = "DatagramBased"}) Ptr Gio.InputMessage.InputMessage -> -- messages : TCArray False (-1) 2 (TInterface (Name {namespace = "Gio", name = "InputMessage"})) Word32 -> -- num_messages : TBasicType TUInt Int32 -> -- flags : TBasicType TInt Int64 -> -- timeout : TBasicType TInt64 Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) Ptr (Ptr GError) -> -- error IO Int32 -- | Receive one or more data messages from /@datagramBased@/ in one go. -- -- /@messages@/ must point to an array of t'GI.Gio.Structs.InputMessage.InputMessage' structs and -- /@numMessages@/ must be the length of this array. Each t'GI.Gio.Structs.InputMessage.InputMessage' -- contains a pointer to an array of t'GI.Gio.Structs.InputVector.InputVector' structs describing the -- buffers that the data received in each message will be written to. -- -- /@flags@/ modify how all messages are received. The commonly available -- arguments for this are available in the t'GI.Gio.Flags.SocketMsgFlags' enum, but the -- values there are the same as the system values, and the flags -- are passed in as-is, so you can pass in system-specific flags too. These -- flags affect the overall receive operation. Flags affecting individual -- messages are returned in t'GI.Gio.Structs.InputMessage.InputMessage'.@/flags/@. -- -- The other members of t'GI.Gio.Structs.InputMessage.InputMessage' are treated as described in its -- documentation. -- -- If /@timeout@/ is negative the call will block until /@numMessages@/ have been -- received, the connection is closed remotely (EOS), /@cancellable@/ is cancelled, -- or an error occurs. -- -- If /@timeout@/ is 0 the call will return up to /@numMessages@/ without blocking, -- or 'GI.Gio.Enums.IOErrorEnumWouldBlock' if no messages are queued in the operating system -- to be received. -- -- If /@timeout@/ is positive the call will block on the same conditions as if -- /@timeout@/ were negative. If the timeout is reached -- before any messages are received, 'GI.Gio.Enums.IOErrorEnumTimedOut' is returned, -- otherwise it will return the number of messages received before timing out. -- (Note: This is effectively the behaviour of @MSG_WAITFORONE@ with -- @/recvmmsg()/@.) -- -- To be notified when messages are available, wait for the 'GI.GLib.Flags.IOConditionIn' condition. -- Note though that you may still receive 'GI.Gio.Enums.IOErrorEnumWouldBlock' from -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedReceiveMessages' even if you were previously notified of a -- 'GI.GLib.Flags.IOConditionIn' condition. -- -- If the remote peer closes the connection, any messages queued in the -- underlying receive buffer will be returned, and subsequent calls to -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedReceiveMessages' will return 0 (with no error set). -- -- If the connection is shut down or closed (by calling 'GI.Gio.Objects.Socket.socketClose' or -- 'GI.Gio.Objects.Socket.socketShutdown' with /@shutdownRead@/ set, if it’s a t'GI.Gio.Objects.Socket.Socket', for -- example), all calls to this function will return 'GI.Gio.Enums.IOErrorEnumClosed'. -- -- On error -1 is returned and /@error@/ is set accordingly. An error will only -- be returned if zero messages could be received; otherwise the number of -- messages successfully received before the error will be returned. If -- /@cancellable@/ is cancelled, 'GI.Gio.Enums.IOErrorEnumCancelled' is returned as with any -- other error. -- -- /Since: 2.48/ datagramBasedReceiveMessages :: (B.CallStack.HasCallStack, MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => a -- ^ /@datagramBased@/: a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' -> [Gio.InputMessage.InputMessage] -- ^ /@messages@/: an array of t'GI.Gio.Structs.InputMessage.InputMessage' structs -> Int32 -- ^ /@flags@/: an int containing t'GI.Gio.Flags.SocketMsgFlags' flags for the overall operation -> Int64 -- ^ /@timeout@/: the maximum time (in microseconds) to wait, 0 to not block, or -1 -- to block indefinitely -> Maybe (b) -- ^ /@cancellable@/: a @/GCancellable/@ -> m Int32 -- ^ __Returns:__ number of messages received, or -1 on error. Note that the number -- of messages received may be smaller than /@numMessages@/ if /@timeout@/ is -- zero or positive, if the peer closed the connection, or if /@numMessages@/ -- was larger than @UIO_MAXIOV@ (1024), in which case the caller may re-try -- to receive the remaining messages. /(Can throw 'Data.GI.Base.GError.GError')/ datagramBasedReceiveMessages :: a -> [InputMessage] -> Int32 -> Int64 -> Maybe b -> m Int32 datagramBasedReceiveMessages datagramBased :: a datagramBased messages :: [InputMessage] messages flags :: Int32 flags timeout :: Int64 timeout cancellable :: Maybe b cancellable = IO Int32 -> m Int32 forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO Int32 -> m Int32) -> IO Int32 -> m Int32 forall a b. (a -> b) -> a -> b $ do let numMessages :: Word32 numMessages = Int -> Word32 forall a b. (Integral a, Num b) => a -> b fromIntegral (Int -> Word32) -> Int -> Word32 forall a b. (a -> b) -> a -> b $ [InputMessage] -> Int forall (t :: * -> *) a. Foldable t => t a -> Int length [InputMessage] messages Ptr DatagramBased datagramBased' <- a -> IO (Ptr DatagramBased) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a datagramBased [Ptr InputMessage] messages' <- (InputMessage -> IO (Ptr InputMessage)) -> [InputMessage] -> IO [Ptr InputMessage] forall (t :: * -> *) (m :: * -> *) a b. (Traversable t, Monad m) => (a -> m b) -> t a -> m (t b) mapM InputMessage -> IO (Ptr InputMessage) forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a) unsafeManagedPtrGetPtr [InputMessage] messages Ptr InputMessage messages'' <- Int -> [Ptr InputMessage] -> IO (Ptr InputMessage) forall a. Int -> [Ptr a] -> IO (Ptr a) packBlockArray 56 [Ptr InputMessage] messages' Ptr Cancellable maybeCancellable <- case Maybe b cancellable of Nothing -> Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable forall a. Ptr a nullPtr Just jCancellable :: b jCancellable -> do Ptr Cancellable jCancellable' <- b -> IO (Ptr Cancellable) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr b jCancellable Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable jCancellable' IO Int32 -> IO () -> IO Int32 forall a b. IO a -> IO b -> IO a onException (do Int32 result <- (Ptr (Ptr GError) -> IO Int32) -> IO Int32 forall a. (Ptr (Ptr GError) -> IO a) -> IO a propagateGError ((Ptr (Ptr GError) -> IO Int32) -> IO Int32) -> (Ptr (Ptr GError) -> IO Int32) -> IO Int32 forall a b. (a -> b) -> a -> b $ Ptr DatagramBased -> Ptr InputMessage -> Word32 -> Int32 -> Int64 -> Ptr Cancellable -> Ptr (Ptr GError) -> IO Int32 g_datagram_based_receive_messages Ptr DatagramBased datagramBased' Ptr InputMessage messages'' Word32 numMessages Int32 flags Int64 timeout Ptr Cancellable maybeCancellable a -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr a datagramBased (InputMessage -> IO ()) -> [InputMessage] -> IO () forall (t :: * -> *) (m :: * -> *) a b. (Foldable t, Monad m) => (a -> m b) -> t a -> m () mapM_ InputMessage -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr [InputMessage] messages Maybe b -> (b -> IO ()) -> IO () forall (m :: * -> *) a. Monad m => Maybe a -> (a -> m ()) -> m () whenJust Maybe b cancellable b -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr Ptr InputMessage -> IO () forall a. Ptr a -> IO () freeMem Ptr InputMessage messages'' Int32 -> IO Int32 forall (m :: * -> *) a. Monad m => a -> m a return Int32 result ) (do Ptr InputMessage -> IO () forall a. Ptr a -> IO () freeMem Ptr InputMessage messages'' ) #if defined(ENABLE_OVERLOADING) data DatagramBasedReceiveMessagesMethodInfo instance (signature ~ ([Gio.InputMessage.InputMessage] -> Int32 -> Int64 -> Maybe (b) -> m Int32), MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => O.MethodInfo DatagramBasedReceiveMessagesMethodInfo a signature where overloadedMethod = datagramBasedReceiveMessages #endif -- method DatagramBased::send_messages -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "datagram_based" -- , argType = -- TInterface Name { namespace = "Gio" , name = "DatagramBased" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GDatagramBased" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "messages" -- , argType = -- TCArray -- False -- (-1) -- 2 -- (TInterface Name { namespace = "Gio" , name = "OutputMessage" }) -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "an array of #GOutputMessage structs" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "num_messages" -- , argType = TBasicType TUInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of elements in @messages" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "flags" -- , argType = TBasicType TInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "an int containing #GSocketMsgFlags flags" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "timeout" -- , argType = TBasicType TInt64 -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "the maximum time (in microseconds) to wait, 0 to not block, or -1\n to block indefinitely" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "cancellable" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Cancellable" } -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = Just "a %GCancellable" , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- Lengths: [ Arg -- { argCName = "num_messages" -- , argType = TBasicType TUInt -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of elements in @messages" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , transfer = TransferNothing -- } -- ] -- returnType: Just (TBasicType TInt) -- throws : True -- Skip return : False foreign import ccall "g_datagram_based_send_messages" g_datagram_based_send_messages :: Ptr DatagramBased -> -- datagram_based : TInterface (Name {namespace = "Gio", name = "DatagramBased"}) Ptr Gio.OutputMessage.OutputMessage -> -- messages : TCArray False (-1) 2 (TInterface (Name {namespace = "Gio", name = "OutputMessage"})) Word32 -> -- num_messages : TBasicType TUInt Int32 -> -- flags : TBasicType TInt Int64 -> -- timeout : TBasicType TInt64 Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) Ptr (Ptr GError) -> -- error IO Int32 -- | Send one or more data messages from /@datagramBased@/ in one go. -- -- /@messages@/ must point to an array of t'GI.Gio.Structs.OutputMessage.OutputMessage' structs and -- /@numMessages@/ must be the length of this array. Each t'GI.Gio.Structs.OutputMessage.OutputMessage' -- contains an address to send the data to, and a pointer to an array of -- t'GI.Gio.Structs.OutputVector.OutputVector' structs to describe the buffers that the data to be sent -- for each message will be gathered from. -- -- /@flags@/ modify how the message is sent. The commonly available arguments -- for this are available in the t'GI.Gio.Flags.SocketMsgFlags' enum, but the -- values there are the same as the system values, and the flags -- are passed in as-is, so you can pass in system-specific flags too. -- -- The other members of t'GI.Gio.Structs.OutputMessage.OutputMessage' are treated as described in its -- documentation. -- -- If /@timeout@/ is negative the call will block until /@numMessages@/ have been -- sent, /@cancellable@/ is cancelled, or an error occurs. -- -- If /@timeout@/ is 0 the call will send up to /@numMessages@/ without blocking, -- or will return 'GI.Gio.Enums.IOErrorEnumWouldBlock' if there is no space to send messages. -- -- If /@timeout@/ is positive the call will block on the same conditions as if -- /@timeout@/ were negative. If the timeout is reached before any messages are -- sent, 'GI.Gio.Enums.IOErrorEnumTimedOut' is returned, otherwise it will return the number -- of messages sent before timing out. -- -- To be notified when messages can be sent, wait for the 'GI.GLib.Flags.IOConditionOut' condition. -- Note though that you may still receive 'GI.Gio.Enums.IOErrorEnumWouldBlock' from -- 'GI.Gio.Interfaces.DatagramBased.datagramBasedSendMessages' even if you were previously notified of a -- 'GI.GLib.Flags.IOConditionOut' condition. (On Windows in particular, this is very common due to -- the way the underlying APIs work.) -- -- If the connection is shut down or closed (by calling 'GI.Gio.Objects.Socket.socketClose' or -- 'GI.Gio.Objects.Socket.socketShutdown' with /@shutdownWrite@/ set, if it’s a t'GI.Gio.Objects.Socket.Socket', for -- example), all calls to this function will return 'GI.Gio.Enums.IOErrorEnumClosed'. -- -- On error -1 is returned and /@error@/ is set accordingly. An error will only -- be returned if zero messages could be sent; otherwise the number of messages -- successfully sent before the error will be returned. If /@cancellable@/ is -- cancelled, 'GI.Gio.Enums.IOErrorEnumCancelled' is returned as with any other error. -- -- /Since: 2.48/ datagramBasedSendMessages :: (B.CallStack.HasCallStack, MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => a -- ^ /@datagramBased@/: a t'GI.Gio.Interfaces.DatagramBased.DatagramBased' -> [Gio.OutputMessage.OutputMessage] -- ^ /@messages@/: an array of t'GI.Gio.Structs.OutputMessage.OutputMessage' structs -> Int32 -- ^ /@flags@/: an int containing t'GI.Gio.Flags.SocketMsgFlags' flags -> Int64 -- ^ /@timeout@/: the maximum time (in microseconds) to wait, 0 to not block, or -1 -- to block indefinitely -> Maybe (b) -- ^ /@cancellable@/: a @/GCancellable/@ -> m Int32 -- ^ __Returns:__ number of messages sent, or -1 on error. Note that the number of -- messages sent may be smaller than /@numMessages@/ if /@timeout@/ is zero -- or positive, or if /@numMessages@/ was larger than @UIO_MAXIOV@ (1024), in -- which case the caller may re-try to send the remaining messages. /(Can throw 'Data.GI.Base.GError.GError')/ datagramBasedSendMessages :: a -> [OutputMessage] -> Int32 -> Int64 -> Maybe b -> m Int32 datagramBasedSendMessages datagramBased :: a datagramBased messages :: [OutputMessage] messages flags :: Int32 flags timeout :: Int64 timeout cancellable :: Maybe b cancellable = IO Int32 -> m Int32 forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO Int32 -> m Int32) -> IO Int32 -> m Int32 forall a b. (a -> b) -> a -> b $ do let numMessages :: Word32 numMessages = Int -> Word32 forall a b. (Integral a, Num b) => a -> b fromIntegral (Int -> Word32) -> Int -> Word32 forall a b. (a -> b) -> a -> b $ [OutputMessage] -> Int forall (t :: * -> *) a. Foldable t => t a -> Int length [OutputMessage] messages Ptr DatagramBased datagramBased' <- a -> IO (Ptr DatagramBased) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a datagramBased [Ptr OutputMessage] messages' <- (OutputMessage -> IO (Ptr OutputMessage)) -> [OutputMessage] -> IO [Ptr OutputMessage] forall (t :: * -> *) (m :: * -> *) a b. (Traversable t, Monad m) => (a -> m b) -> t a -> m (t b) mapM OutputMessage -> IO (Ptr OutputMessage) forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a) unsafeManagedPtrGetPtr [OutputMessage] messages Ptr OutputMessage messages'' <- Int -> [Ptr OutputMessage] -> IO (Ptr OutputMessage) forall a. Int -> [Ptr a] -> IO (Ptr a) packBlockArray 40 [Ptr OutputMessage] messages' Ptr Cancellable maybeCancellable <- case Maybe b cancellable of Nothing -> Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable forall a. Ptr a nullPtr Just jCancellable :: b jCancellable -> do Ptr Cancellable jCancellable' <- b -> IO (Ptr Cancellable) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr b jCancellable Ptr Cancellable -> IO (Ptr Cancellable) forall (m :: * -> *) a. Monad m => a -> m a return Ptr Cancellable jCancellable' IO Int32 -> IO () -> IO Int32 forall a b. IO a -> IO b -> IO a onException (do Int32 result <- (Ptr (Ptr GError) -> IO Int32) -> IO Int32 forall a. (Ptr (Ptr GError) -> IO a) -> IO a propagateGError ((Ptr (Ptr GError) -> IO Int32) -> IO Int32) -> (Ptr (Ptr GError) -> IO Int32) -> IO Int32 forall a b. (a -> b) -> a -> b $ Ptr DatagramBased -> Ptr OutputMessage -> Word32 -> Int32 -> Int64 -> Ptr Cancellable -> Ptr (Ptr GError) -> IO Int32 g_datagram_based_send_messages Ptr DatagramBased datagramBased' Ptr OutputMessage messages'' Word32 numMessages Int32 flags Int64 timeout Ptr Cancellable maybeCancellable a -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr a datagramBased (OutputMessage -> IO ()) -> [OutputMessage] -> IO () forall (t :: * -> *) (m :: * -> *) a b. (Foldable t, Monad m) => (a -> m b) -> t a -> m () mapM_ OutputMessage -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr [OutputMessage] messages Maybe b -> (b -> IO ()) -> IO () forall (m :: * -> *) a. Monad m => Maybe a -> (a -> m ()) -> m () whenJust Maybe b cancellable b -> IO () forall a. ManagedPtrNewtype a => a -> IO () touchManagedPtr Ptr OutputMessage -> IO () forall a. Ptr a -> IO () freeMem Ptr OutputMessage messages'' Int32 -> IO Int32 forall (m :: * -> *) a. Monad m => a -> m a return Int32 result ) (do Ptr OutputMessage -> IO () forall a. Ptr a -> IO () freeMem Ptr OutputMessage messages'' ) #if defined(ENABLE_OVERLOADING) data DatagramBasedSendMessagesMethodInfo instance (signature ~ ([Gio.OutputMessage.OutputMessage] -> Int32 -> Int64 -> Maybe (b) -> m Int32), MonadIO m, IsDatagramBased a, Gio.Cancellable.IsCancellable b) => O.MethodInfo DatagramBasedSendMessagesMethodInfo a signature where overloadedMethod = datagramBasedSendMessages #endif