Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	None
Language	Haskell2010

GI.GModule.Callbacks

Contents

Signals
- ModuleCheckInit
- ModuleUnload

Description

Synopsis

type C_ModuleCheckInit = Ptr Module -> IO CString
type ModuleCheckInit = Module -> IO Text
dynamic_ModuleCheckInit :: (HasCallStack, MonadIO m) => FunPtr C_ModuleCheckInit -> Module -> m Text
genClosure_ModuleCheckInit :: MonadIO m => ModuleCheckInit -> m (GClosure C_ModuleCheckInit)
mk_ModuleCheckInit :: C_ModuleCheckInit -> IO (FunPtr C_ModuleCheckInit)
noModuleCheckInit :: Maybe ModuleCheckInit
wrap_ModuleCheckInit :: Maybe (Ptr (FunPtr C_ModuleCheckInit)) -> ModuleCheckInit -> C_ModuleCheckInit
type C_ModuleUnload = Ptr Module -> IO ()
type ModuleUnload = Module -> IO ()
dynamic_ModuleUnload :: (HasCallStack, MonadIO m) => FunPtr C_ModuleUnload -> Module -> m ()
genClosure_ModuleUnload :: MonadIO m => ModuleUnload -> m (GClosure C_ModuleUnload)
mk_ModuleUnload :: C_ModuleUnload -> IO (FunPtr C_ModuleUnload)
noModuleUnload :: Maybe ModuleUnload
wrap_ModuleUnload :: Maybe (Ptr (FunPtr C_ModuleUnload)) -> ModuleUnload -> C_ModuleUnload

Signals

ModuleCheckInit

type C_ModuleCheckInit = Ptr Module -> IO CString Source #

Type for the callback on the (unwrapped) C side.

type ModuleCheckInit Source #

Arguments

= Module	`module`: the `Module` corresponding to the module which has just been loaded
-> IO Text	Returns: `Nothing` on success, or a string describing the initialization error

Specifies the type of the module initialization function. If a module contains a function named g_module_check_init() it is called automatically when the module is loaded. It is passed the Module structure and should return Nothing on success or a string describing the initialization error.

dynamic_ModuleCheckInit Source #

Arguments

:: (HasCallStack, MonadIO m)
=> FunPtr C_ModuleCheckInit
-> Module	`module`: the `Module` corresponding to the module which has just been loaded
-> m Text	Returns: `Nothing` on success, or a string describing the initialization error

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ModuleCheckInit :: MonadIO m => ModuleCheckInit -> m (GClosure C_ModuleCheckInit) Source #

Wrap the callback into a GClosure.

mk_ModuleCheckInit :: C_ModuleCheckInit -> IO (FunPtr C_ModuleCheckInit) Source #

Generate a function pointer callable from C code, from a C_ModuleCheckInit.

noModuleCheckInit :: Maybe ModuleCheckInit Source #

A convenience synonym for Nothing :: Maybe ModuleCheckInit.

wrap_ModuleCheckInit :: Maybe (Ptr (FunPtr C_ModuleCheckInit)) -> ModuleCheckInit -> C_ModuleCheckInit Source #

Wrap a ModuleCheckInit into a C_ModuleCheckInit.

ModuleUnload

type C_ModuleUnload = Ptr Module -> IO () Source #

Type for the callback on the (unwrapped) C side.

type ModuleUnload Source #

Arguments

= Module	`module`: the `Module` about to be unloaded
-> IO ()

Specifies the type of the module function called when it is unloaded. If a module contains a function named g_module_unload() it is called automatically when the module is unloaded. It is passed the Module structure.

dynamic_ModuleUnload Source #

Arguments

:: (HasCallStack, MonadIO m)
=> FunPtr C_ModuleUnload
-> Module	`module`: the `Module` about to be unloaded
-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ModuleUnload :: MonadIO m => ModuleUnload -> m (GClosure C_ModuleUnload) Source #

Wrap the callback into a GClosure.

mk_ModuleUnload :: C_ModuleUnload -> IO (FunPtr C_ModuleUnload) Source #

Generate a function pointer callable from C code, from a C_ModuleUnload.

noModuleUnload :: Maybe ModuleUnload Source #

A convenience synonym for Nothing :: Maybe ModuleUnload.

wrap_ModuleUnload :: Maybe (Ptr (FunPtr C_ModuleUnload)) -> ModuleUnload -> C_ModuleUnload Source #

Wrap a ModuleUnload into a C_ModuleUnload.