{- | Copyright : Will Thompson, Iñaki García Etxebarria and Jonas Platte License : LGPL-2.1 Maintainer : Iñaki García Etxebarria (inaki@blueleaf.cc) This is the asynchronous version of 'GI.Gio.Interfaces.Initable.Initable'; it behaves the same in all ways except that initialization is asynchronous. For more details see the descriptions on 'GI.Gio.Interfaces.Initable.Initable'. A class may implement both the 'GI.Gio.Interfaces.Initable.Initable' and 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable' interfaces. Users of objects implementing this are not intended to use the interface method directly; instead it will be used automatically in various ways. For C applications you generally just call @/g_async_initable_new_async()/@ directly, or indirectly via a @/foo_thing_new_async()/@ wrapper. This will call 'GI.Gio.Interfaces.AsyncInitable.asyncInitableInitAsync' under the cover, calling back with 'Nothing' and a set @/GError/@ on failure. A typical implementation might look something like this: === /C code/ > >enum { > NOT_INITIALIZED, > INITIALIZING, > INITIALIZED >}; > >static void >_foo_ready_cb (Foo *self) >{ > GList *l; > > self->priv->state = INITIALIZED; > > for (l = self->priv->init_results; l != NULL; l = l->next) > { > GTask *task = l->data; > > if (self->priv->success) > g_task_return_boolean (task, TRUE); > else > g_task_return_new_error (task, ...); > g_object_unref (task); > } > > g_list_free (self->priv->init_results); > self->priv->init_results = NULL; >} > >static void >foo_init_async (GAsyncInitable *initable, > int io_priority, > GCancellable *cancellable, > GAsyncReadyCallback callback, > gpointer user_data) >{ > Foo *self = FOO (initable); > GTask *task; > > task = g_task_new (initable, cancellable, callback, user_data); > > switch (self->priv->state) > { > case NOT_INITIALIZED: > _foo_get_ready (self); > self->priv->init_results = g_list_append (self->priv->init_results, > task); > self->priv->state = INITIALIZING; > break; > case INITIALIZING: > self->priv->init_results = g_list_append (self->priv->init_results, > task); > break; > case INITIALIZED: > if (!self->priv->success) > g_task_return_new_error (task, ...); > else > g_task_return_boolean (task, TRUE); > g_object_unref (task); > break; > } >} > >static gboolean >foo_init_finish (GAsyncInitable *initable, > GAsyncResult *result, > GError **error) >{ > g_return_val_if_fail (g_task_is_valid (result, initable), FALSE); > > return g_task_propagate_boolean (G_TASK (result), error); >} > >static void >foo_async_initable_iface_init (gpointer g_iface, > gpointer data) >{ > GAsyncInitableIface *iface = g_iface; > > iface->init_async = foo_init_async; > iface->init_finish = foo_init_finish; >} /Since: 2.22/ -} #define ENABLE_OVERLOADING (MIN_VERSION_haskell_gi_overloading(1,0,0) \ && !defined(__HADDOCK_VERSION__)) module GI.Gio.Interfaces.AsyncInitable ( -- * Exported types AsyncInitable(..) , noAsyncInitable , IsAsyncInitable , toAsyncInitable , -- * Methods -- ** initAsync #method:initAsync# #if ENABLE_OVERLOADING AsyncInitableInitAsyncMethodInfo , #endif asyncInitableInitAsync , -- ** initFinish #method:initFinish# #if ENABLE_OVERLOADING AsyncInitableInitFinishMethodInfo , #endif asyncInitableInitFinish , -- ** newFinish #method:newFinish# #if ENABLE_OVERLOADING AsyncInitableNewFinishMethodInfo , #endif asyncInitableNewFinish , -- ** newvAsync #method:newvAsync# asyncInitableNewvAsync , ) 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.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.GObject.Objects.Object as GObject.Object import qualified GI.GObject.Structs.Parameter as GObject.Parameter import qualified GI.Gio.Callbacks as Gio.Callbacks import {-# SOURCE #-} qualified GI.Gio.Interfaces.AsyncResult as Gio.AsyncResult import {-# SOURCE #-} qualified GI.Gio.Objects.Cancellable as Gio.Cancellable -- interface AsyncInitable -- | Memory-managed wrapper type. newtype AsyncInitable = AsyncInitable (ManagedPtr AsyncInitable) -- | A convenience alias for `Nothing` :: `Maybe` `AsyncInitable`. noAsyncInitable :: Maybe AsyncInitable noAsyncInitable = Nothing #if ENABLE_OVERLOADING type instance O.SignalList AsyncInitable = AsyncInitableSignalList type AsyncInitableSignalList = ('[ '("notify", GObject.Object.ObjectNotifySignalInfo)] :: [(Symbol, *)]) #endif foreign import ccall "g_async_initable_get_type" c_g_async_initable_get_type :: IO GType instance GObject AsyncInitable where gobjectType = c_g_async_initable_get_type -- | Type class for types which can be safely cast to `AsyncInitable`, for instance with `toAsyncInitable`. class (GObject o, O.IsDescendantOf AsyncInitable o) => IsAsyncInitable o instance (GObject o, O.IsDescendantOf AsyncInitable o) => IsAsyncInitable o instance O.HasParentTypes AsyncInitable type instance O.ParentTypes AsyncInitable = '[GObject.Object.Object] -- | Cast to `AsyncInitable`, for types for which this is known to be safe. For general casts, use `Data.GI.Base.ManagedPtr.castTo`. toAsyncInitable :: (MonadIO m, IsAsyncInitable o) => o -> m AsyncInitable toAsyncInitable = liftIO . unsafeCastTo AsyncInitable #if ENABLE_OVERLOADING instance O.HasAttributeList AsyncInitable type instance O.AttributeList AsyncInitable = AsyncInitableAttributeList type AsyncInitableAttributeList = ('[ ] :: [(Symbol, *)]) #endif #if ENABLE_OVERLOADING #endif #if ENABLE_OVERLOADING type family ResolveAsyncInitableMethod (t :: Symbol) (o :: *) :: * where ResolveAsyncInitableMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo ResolveAsyncInitableMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo ResolveAsyncInitableMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo ResolveAsyncInitableMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo ResolveAsyncInitableMethod "getv" o = GObject.Object.ObjectGetvMethodInfo ResolveAsyncInitableMethod "initAsync" o = AsyncInitableInitAsyncMethodInfo ResolveAsyncInitableMethod "initFinish" o = AsyncInitableInitFinishMethodInfo ResolveAsyncInitableMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo ResolveAsyncInitableMethod "newFinish" o = AsyncInitableNewFinishMethodInfo ResolveAsyncInitableMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo ResolveAsyncInitableMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo ResolveAsyncInitableMethod "ref" o = GObject.Object.ObjectRefMethodInfo ResolveAsyncInitableMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo ResolveAsyncInitableMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo ResolveAsyncInitableMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo ResolveAsyncInitableMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo ResolveAsyncInitableMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo ResolveAsyncInitableMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo ResolveAsyncInitableMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo ResolveAsyncInitableMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo ResolveAsyncInitableMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo ResolveAsyncInitableMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo ResolveAsyncInitableMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo ResolveAsyncInitableMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo ResolveAsyncInitableMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo ResolveAsyncInitableMethod l o = O.MethodResolutionFailed l o instance (info ~ ResolveAsyncInitableMethod t AsyncInitable, O.MethodInfo info AsyncInitable p) => OL.IsLabel t (AsyncInitable -> p) where #if MIN_VERSION_base(4,10,0) fromLabel = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info) #else fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info) #endif #endif -- method AsyncInitable::init_async -- method type : OrdinaryMethod -- Args : [Arg {argCName = "initable", argType = TInterface (Name {namespace = "Gio", name = "AsyncInitable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GAsyncInitable.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "io_priority", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the [I/O priority][io-priority] of the operation", 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 "optional #GCancellable object, %NULL to ignore.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "callback", argType = TInterface (Name {namespace = "Gio", name = "AsyncReadyCallback"}), direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "a #GAsyncReadyCallback to call when the request is satisfied", sinceVersion = Nothing}, argScope = ScopeTypeAsync, argClosure = 4, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "user_data", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "the data to pass to callback function", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}] -- Lengths : [] -- returnType : Nothing -- throws : False -- Skip return : False foreign import ccall "g_async_initable_init_async" g_async_initable_init_async :: Ptr AsyncInitable -> -- initable : TInterface (Name {namespace = "Gio", name = "AsyncInitable"}) Int32 -> -- io_priority : TBasicType TInt Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) FunPtr Gio.Callbacks.C_AsyncReadyCallback -> -- callback : TInterface (Name {namespace = "Gio", name = "AsyncReadyCallback"}) Ptr () -> -- user_data : TBasicType TPtr IO () {- | Starts asynchronous initialization of the object implementing the interface. This must be done before any real use of the object after initial construction. If the object also implements 'GI.Gio.Interfaces.Initable.Initable' you can optionally call 'GI.Gio.Interfaces.Initable.initableInit' instead. This method is intended for language bindings. If writing in C, @/g_async_initable_new_async()/@ should typically be used instead. When the initialization is finished, /@callback@/ will be called. You can then call 'GI.Gio.Interfaces.AsyncInitable.asyncInitableInitFinish' to get the result of the initialization. Implementations may also support cancellation. If /@cancellable@/ is not 'Nothing', then initialization can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error 'GI.Gio.Enums.IOErrorEnumCancelled' will be returned. If /@cancellable@/ is not 'Nothing', and the object doesn\'t support cancellable initialization, the error 'GI.Gio.Enums.IOErrorEnumNotSupported' will be returned. As with 'GI.Gio.Interfaces.Initable.Initable', if the object is not initialized, or initialization returns with an error, then all operations on the object except 'GI.GObject.Objects.Object.objectRef' and 'GI.GObject.Objects.Object.objectUnref' are considered to be invalid, and have undefined behaviour. They will often fail with @/g_critical()/@ or @/g_warning()/@, but this must not be relied on. Callers should not assume that a class which implements 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable' can be initialized multiple times; for more information, see 'GI.Gio.Interfaces.Initable.initableInit'. If a class explicitly supports being initialized multiple times, implementation requires yielding all subsequent calls to @/init_async()/@ on the results of the first call. For classes that also support the 'GI.Gio.Interfaces.Initable.Initable' interface, the default implementation of this method will run the 'GI.Gio.Interfaces.Initable.initableInit' function in a thread, so if you want to support asynchronous initialization via threads, just implement the 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable' interface without overriding any interface methods. /Since: 2.22/ -} asyncInitableInitAsync :: (B.CallStack.HasCallStack, MonadIO m, IsAsyncInitable a, Gio.Cancellable.IsCancellable b) => a {- ^ /@initable@/: a 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable'. -} -> Int32 {- ^ /@ioPriority@/: the [I\/O priority][io-priority] of the operation -} -> Maybe (b) {- ^ /@cancellable@/: optional 'GI.Gio.Objects.Cancellable.Cancellable' object, 'Nothing' to ignore. -} -> Maybe (Gio.Callbacks.AsyncReadyCallback) {- ^ /@callback@/: a 'GI.Gio.Callbacks.AsyncReadyCallback' to call when the request is satisfied -} -> m () asyncInitableInitAsync initable ioPriority cancellable callback = liftIO $ do initable' <- unsafeManagedPtrCastPtr initable maybeCancellable <- case cancellable of Nothing -> return nullPtr Just jCancellable -> do jCancellable' <- unsafeManagedPtrCastPtr jCancellable return jCancellable' maybeCallback <- case callback of Nothing -> return (castPtrToFunPtr nullPtr) Just jCallback -> do ptrcallback <- callocMem :: IO (Ptr (FunPtr Gio.Callbacks.C_AsyncReadyCallback)) jCallback' <- Gio.Callbacks.mk_AsyncReadyCallback (Gio.Callbacks.wrap_AsyncReadyCallback (Just ptrcallback) (Gio.Callbacks.drop_closures_AsyncReadyCallback jCallback)) poke ptrcallback jCallback' return jCallback' let userData = nullPtr g_async_initable_init_async initable' ioPriority maybeCancellable maybeCallback userData touchManagedPtr initable whenJust cancellable touchManagedPtr return () #if ENABLE_OVERLOADING data AsyncInitableInitAsyncMethodInfo instance (signature ~ (Int32 -> Maybe (b) -> Maybe (Gio.Callbacks.AsyncReadyCallback) -> m ()), MonadIO m, IsAsyncInitable a, Gio.Cancellable.IsCancellable b) => O.MethodInfo AsyncInitableInitAsyncMethodInfo a signature where overloadedMethod _ = asyncInitableInitAsync #endif -- method AsyncInitable::init_finish -- method type : OrdinaryMethod -- Args : [Arg {argCName = "initable", argType = TInterface (Name {namespace = "Gio", name = "AsyncInitable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GAsyncInitable.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "res", argType = TInterface (Name {namespace = "Gio", name = "AsyncResult"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GAsyncResult.", 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_async_initable_init_finish" g_async_initable_init_finish :: Ptr AsyncInitable -> -- initable : TInterface (Name {namespace = "Gio", name = "AsyncInitable"}) Ptr Gio.AsyncResult.AsyncResult -> -- res : TInterface (Name {namespace = "Gio", name = "AsyncResult"}) Ptr (Ptr GError) -> -- error IO CInt {- | Finishes asynchronous initialization and returns the result. See 'GI.Gio.Interfaces.AsyncInitable.asyncInitableInitAsync'. /Since: 2.22/ -} asyncInitableInitFinish :: (B.CallStack.HasCallStack, MonadIO m, IsAsyncInitable a, Gio.AsyncResult.IsAsyncResult b) => a {- ^ /@initable@/: a 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable'. -} -> b {- ^ /@res@/: a 'GI.Gio.Interfaces.AsyncResult.AsyncResult'. -} -> m () {- ^ /(Can throw 'Data.GI.Base.GError.GError')/ -} asyncInitableInitFinish initable res = liftIO $ do initable' <- unsafeManagedPtrCastPtr initable res' <- unsafeManagedPtrCastPtr res onException (do _ <- propagateGError $ g_async_initable_init_finish initable' res' touchManagedPtr initable touchManagedPtr res return () ) (do return () ) #if ENABLE_OVERLOADING data AsyncInitableInitFinishMethodInfo instance (signature ~ (b -> m ()), MonadIO m, IsAsyncInitable a, Gio.AsyncResult.IsAsyncResult b) => O.MethodInfo AsyncInitableInitFinishMethodInfo a signature where overloadedMethod _ = asyncInitableInitFinish #endif -- method AsyncInitable::new_finish -- method type : OrdinaryMethod -- Args : [Arg {argCName = "initable", argType = TInterface (Name {namespace = "Gio", name = "AsyncInitable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the #GAsyncInitable from the callback", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "res", argType = TInterface (Name {namespace = "Gio", name = "AsyncResult"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the #GAsyncResult from the callback", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}] -- Lengths : [] -- returnType : Just (TInterface (Name {namespace = "GObject", name = "Object"})) -- throws : True -- Skip return : False foreign import ccall "g_async_initable_new_finish" g_async_initable_new_finish :: Ptr AsyncInitable -> -- initable : TInterface (Name {namespace = "Gio", name = "AsyncInitable"}) Ptr Gio.AsyncResult.AsyncResult -> -- res : TInterface (Name {namespace = "Gio", name = "AsyncResult"}) Ptr (Ptr GError) -> -- error IO (Ptr GObject.Object.Object) {- | Finishes the async construction for the various g_async_initable_new calls, returning the created object or 'Nothing' on error. /Since: 2.22/ -} asyncInitableNewFinish :: (B.CallStack.HasCallStack, MonadIO m, IsAsyncInitable a, Gio.AsyncResult.IsAsyncResult b) => a {- ^ /@initable@/: the 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable' from the callback -} -> b {- ^ /@res@/: the 'GI.Gio.Interfaces.AsyncResult.AsyncResult' from the callback -} -> m GObject.Object.Object {- ^ __Returns:__ a newly created 'GI.GObject.Objects.Object.Object', or 'Nothing' on error. Free with 'GI.GObject.Objects.Object.objectUnref'. /(Can throw 'Data.GI.Base.GError.GError')/ -} asyncInitableNewFinish initable res = liftIO $ do initable' <- unsafeManagedPtrCastPtr initable res' <- unsafeManagedPtrCastPtr res onException (do result <- propagateGError $ g_async_initable_new_finish initable' res' checkUnexpectedReturnNULL "asyncInitableNewFinish" result result' <- (wrapObject GObject.Object.Object) result touchManagedPtr initable touchManagedPtr res return result' ) (do return () ) #if ENABLE_OVERLOADING data AsyncInitableNewFinishMethodInfo instance (signature ~ (b -> m GObject.Object.Object), MonadIO m, IsAsyncInitable a, Gio.AsyncResult.IsAsyncResult b) => O.MethodInfo AsyncInitableNewFinishMethodInfo a signature where overloadedMethod _ = asyncInitableNewFinish #endif -- method AsyncInitable::newv_async -- method type : MemberFunction -- Args : [Arg {argCName = "object_type", argType = TBasicType TGType, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GType supporting #GAsyncInitable.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "n_parameters", argType = TBasicType TUInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of parameters in @parameters", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "parameters", argType = TInterface (Name {namespace = "GObject", name = "Parameter"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the parameters to use to construct the object", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "io_priority", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the [I/O priority][io-priority] of the operation", 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 "optional #GCancellable object, %NULL to ignore.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "callback", argType = TInterface (Name {namespace = "Gio", name = "AsyncReadyCallback"}), direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "a #GAsyncReadyCallback to call when the initialization is\n finished", sinceVersion = Nothing}, argScope = ScopeTypeAsync, argClosure = 6, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "user_data", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "the data to pass to callback function", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}] -- Lengths : [] -- returnType : Nothing -- throws : False -- Skip return : False foreign import ccall "g_async_initable_newv_async" g_async_initable_newv_async :: CGType -> -- object_type : TBasicType TGType Word32 -> -- n_parameters : TBasicType TUInt Ptr GObject.Parameter.Parameter -> -- parameters : TInterface (Name {namespace = "GObject", name = "Parameter"}) Int32 -> -- io_priority : TBasicType TInt Ptr Gio.Cancellable.Cancellable -> -- cancellable : TInterface (Name {namespace = "Gio", name = "Cancellable"}) FunPtr Gio.Callbacks.C_AsyncReadyCallback -> -- callback : TInterface (Name {namespace = "Gio", name = "AsyncReadyCallback"}) Ptr () -> -- user_data : TBasicType TPtr IO () {-# DEPRECATED asyncInitableNewvAsync ["(Since version 2.54)","Use @/g_object_new_with_properties()/@ and","'GI.Gio.Interfaces.AsyncInitable.asyncInitableInitAsync' instead. See 'GI.GObject.Structs.Parameter.Parameter' for more information."] #-} {- | Helper function for constructing 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable' object. This is similar to 'GI.GObject.Objects.Object.objectNewv' but also initializes the object asynchronously. When the initialization is finished, /@callback@/ will be called. You can then call 'GI.Gio.Interfaces.AsyncInitable.asyncInitableNewFinish' to get the new object and check for any errors. /Since: 2.22/ -} asyncInitableNewvAsync :: (B.CallStack.HasCallStack, MonadIO m, Gio.Cancellable.IsCancellable a) => GType {- ^ /@objectType@/: a 'GType' supporting 'GI.Gio.Interfaces.AsyncInitable.AsyncInitable'. -} -> Word32 {- ^ /@nParameters@/: the number of parameters in /@parameters@/ -} -> GObject.Parameter.Parameter {- ^ /@parameters@/: the parameters to use to construct the object -} -> Int32 {- ^ /@ioPriority@/: the [I\/O priority][io-priority] of the operation -} -> Maybe (a) {- ^ /@cancellable@/: optional 'GI.Gio.Objects.Cancellable.Cancellable' object, 'Nothing' to ignore. -} -> Maybe (Gio.Callbacks.AsyncReadyCallback) {- ^ /@callback@/: a 'GI.Gio.Callbacks.AsyncReadyCallback' to call when the initialization is finished -} -> m () asyncInitableNewvAsync objectType nParameters parameters ioPriority cancellable callback = liftIO $ do let objectType' = gtypeToCGType objectType parameters' <- unsafeManagedPtrGetPtr parameters maybeCancellable <- case cancellable of Nothing -> return nullPtr Just jCancellable -> do jCancellable' <- unsafeManagedPtrCastPtr jCancellable return jCancellable' maybeCallback <- case callback of Nothing -> return (castPtrToFunPtr nullPtr) Just jCallback -> do ptrcallback <- callocMem :: IO (Ptr (FunPtr Gio.Callbacks.C_AsyncReadyCallback)) jCallback' <- Gio.Callbacks.mk_AsyncReadyCallback (Gio.Callbacks.wrap_AsyncReadyCallback (Just ptrcallback) (Gio.Callbacks.drop_closures_AsyncReadyCallback jCallback)) poke ptrcallback jCallback' return jCallback' let userData = nullPtr g_async_initable_newv_async objectType' nParameters parameters' ioPriority maybeCancellable maybeCallback userData touchManagedPtr parameters whenJust cancellable touchManagedPtr return () #if ENABLE_OVERLOADING #endif