GI.GModule.Callbacks

Signals

ModuleCheckInit

type C_ModuleCheckInit = Ptr Module -> IO CString

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

type ModuleCheckInit

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

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)

Wrap the callback into a GClosure.

mk_ModuleCheckInit :: C_ModuleCheckInit -> IO (FunPtr C_ModuleCheckInit)

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

noModuleCheckInit :: Maybe ModuleCheckInit

A convenience synonym for Nothing :: Maybe ModuleCheckInit.

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

Wrap a ModuleCheckInit into a C_ModuleCheckInit.

ModuleUnload

type C_ModuleUnload = Ptr Module -> IO ()

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

type ModuleUnload

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

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)

Wrap the callback into a GClosure.

mk_ModuleUnload :: C_ModuleUnload -> IO (FunPtr C_ModuleUnload)

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

noModuleUnload :: Maybe ModuleUnload

A convenience synonym for Nothing :: Maybe ModuleUnload.

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

Wrap a ModuleUnload into a C_ModuleUnload.