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girffi: Port documentation to gi-docgen and update
Review and update the documentation, making sure it’s complete, formatted in gi-docgen format, and has all appropriate GIR annotations and `Since:` lines. Signed-off-by: Philip Withnall <pwithnall@gnome.org> Helps: #3155
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Philip Withnall
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@ -35,14 +35,6 @@
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#include "girepository.h"
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#include "girepository-private.h"
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/**
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* SECTION:girffi
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* @short_description: TODO
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* @title: girffi
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*
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* TODO
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*/
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static ffi_type *
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gi_type_tag_get_ffi_type_internal (GITypeTag tag,
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gboolean is_pointer,
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@ -115,12 +107,14 @@ gi_type_tag_get_ffi_type_internal (GITypeTag tag,
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/**
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* gi_type_tag_get_ffi_type:
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* @type_tag: A #GITypeTag
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* @is_pointer: Whether or not this is a pointer type
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* @type_tag: a #GITypeTag
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* @is_pointer: whether this is a pointer type
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*
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* TODO
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* Get the `ffi_type` corresponding to @type_tag.
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*
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* Returns: A #ffi_type corresponding to the platform default C ABI for @tag and @is_pointer.
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* Returns: (transfer none): an `ffi_type` corresponding to the platform default
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* C ABI for @tag and @is_pointer.
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* Since: 2.80
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*/
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ffi_type *
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gi_type_tag_get_ffi_type (GITypeTag type_tag,
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@ -131,11 +125,13 @@ gi_type_tag_get_ffi_type (GITypeTag type_tag,
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/**
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* gi_type_info_get_ffi_type:
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* @info: A #GITypeInfo
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* @info: a #GITypeInfo
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*
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* TODO
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* Get the `ffi_type` corresponding to @info.
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*
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* Returns: A #ffi_type corresponding to the platform default C ABI for @info.
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* Returns: (transfer none): a `ffi_type` corresponding to the platform default
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* C ABI for @info.
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* Since: 2.80
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*/
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ffi_type *
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gi_type_info_get_ffi_type (GITypeInfo *info)
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@ -164,12 +160,14 @@ gi_type_info_get_ffi_type (GITypeInfo *info)
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/**
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* gi_callable_info_get_ffi_arg_types:
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* @callable_info: a callable info from a typelib
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* @n_args_p: (out): The number of arguments
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* @n_args_p: (out) (optional): the number of arguments returned
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*
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* TODO
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* Get the `ffi_type`s for the arguments of @callable_info.
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*
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* Returns: an array of ffi_type*. The array itself
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* should be freed using g_free() after use.
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* Returns: (transfer container) (array length=n_args_p): an array of
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* `ffi_type*`. The array itself should be freed using [func@GLib.free] after
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* use.
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* Since: 2.80
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*/
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static ffi_type **
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gi_callable_info_get_ffi_arg_types (GICallableInfo *callable_info,
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@ -233,10 +231,11 @@ gi_callable_info_get_ffi_arg_types (GICallableInfo *callable_info,
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* gi_callable_info_get_ffi_return_type:
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* @callable_info: a callable info from a typelib
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*
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* Fetches the ffi_type for a corresponding return value of
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* a #GICallableInfo
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* Fetches the `ffi_type` for a corresponding return value of
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* a [class@GIRepository.CallableInfo].
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*
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* Returns: the ffi_type for the return value
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* Returns: (transfer none): the `ffi_type` for the return value
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* Since: 2.80
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*/
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static ffi_type *
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gi_callable_info_get_ffi_return_type (GICallableInfo *callable_info)
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@ -256,18 +255,19 @@ gi_callable_info_get_ffi_return_type (GICallableInfo *callable_info)
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/**
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* gi_function_info_prep_invoker:
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* @info: A #GIFunctionInfo
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* @invoker: Output invoker structure
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* @invoker: (out caller-allocates): Output invoker structure
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* @error: A #GError
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*
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* Initialize the caller-allocated @invoker structure with a cache
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* of information needed to invoke the C function corresponding to
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* @info with the platform's default ABI.
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* @info with the platform’s default ABI.
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*
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* A primary intent of this function is that a dynamic structure allocated
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* by a language binding could contain a #GIFunctionInvoker structure
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* inside the binding's function mapping.
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* by a language binding could contain a [type@GIRepository.FunctionInvoker]
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* structure inside the binding’s function mapping.
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*
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* Returns: %TRUE on success, %FALSE otherwise with @error set.
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* Returns: `TRUE` on success, `FALSE` otherwise with @error set.
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* Since: 2.80
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*/
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gboolean
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gi_function_info_prep_invoker (GIFunctionInfo *info,
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@ -300,18 +300,19 @@ gi_function_info_prep_invoker (GIFunctionInfo *info,
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* gi_function_invoker_new_for_address:
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* @addr: The address
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* @info: A #GICallableInfo
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* @invoker: Output invoker structure
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* @invoker: (out caller-allocates): Output invoker structure
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* @error: A #GError
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*
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* Initialize the caller-allocated @invoker structure with a cache
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* of information needed to invoke the C function corresponding to
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* @info with the platform's default ABI.
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* @info with the platform’s default ABI.
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*
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* A primary intent of this function is that a dynamic structure allocated
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* by a language binding could contain a #GIFunctionInvoker structure
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* inside the binding's function mapping.
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* by a language binding could contain a [type@GIRepository.FunctionInvoker]
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* structure inside the binding’s function mapping.
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*
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* Returns: %TRUE on success, %FALSE otherwise with @error set.
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* Returns: `TRUE` on success, `FALSE` otherwise with @error set.
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* Since: 2.80
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*/
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gboolean
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gi_function_invoker_new_for_address (gpointer addr,
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@ -336,11 +337,14 @@ gi_function_invoker_new_for_address (gpointer addr,
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/**
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* gi_function_invoker_destroy:
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* @invoker: A #GIFunctionInvoker
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* @invoker: (transfer none): A #GIFunctionInvoker
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*
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* Release all resources allocated for the internals of @invoker; callers
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* are responsible for freeing any resources allocated for the structure
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* Release all resources allocated for the internals of @invoker.
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*
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* Callers are responsible for freeing any resources allocated for the structure
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* itself however.
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*
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* Since: 2.80
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*/
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void
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gi_function_invoker_destroy (GIFunctionInvoker *invoker)
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@ -357,14 +361,16 @@ typedef struct {
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/**
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* gi_callable_info_create_closure:
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* @callable_info: a callable info from a typelib
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* @cif: a ffi_cif structure
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* @cif: a `ffi_cif` structure
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* @callback: the ffi callback
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* @user_data: data to be passed into the callback
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*
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* Prepares a callback for ffi invocation.
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*
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* Returns: the ffi_closure or NULL on error. The return value
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* should be freed by calling gi_callable_info_destroy_closure().
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* Returns: (transfer full) (nullable): the `ffi_closure`, or `NULL` on error.
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* The return value should be freed by calling
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* [method@GIRepository.CallableInfo.destroy_closure].
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* Since: 2.80
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*/
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ffi_closure *
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gi_callable_info_create_closure (GICallableInfo *callable_info,
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@ -419,7 +425,11 @@ gi_callable_info_create_closure (GICallableInfo *callable_info,
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* @callable_info: a callable info from a typelib
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* @closure: ffi closure
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*
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* Gets callable code from ffi_closure prepared by gi_callable_info_create_closure()
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* Gets callable code from `ffi_closure` prepared by
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* [method@GIRepository.CallableInfo.create_closure].
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*
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* Returns: (transfer none): native address
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* Since: 2.80
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*/
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gpointer *
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gi_callable_info_get_closure_native_address (GICallableInfo *callable_info,
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@ -432,9 +442,12 @@ gi_callable_info_get_closure_native_address (GICallableInfo *callable_info,
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/**
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* gi_callable_info_destroy_closure:
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* @callable_info: a callable info from a typelib
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* @closure: ffi closure
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* @closure: (transfer full): ffi closure
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*
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* Frees a ffi_closure returned from gi_callable_info_create_closure()
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* Frees a `ffi_closure` returned from
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* [method@GIRepository.CallableInfo.create_closure].
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*
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* Since: 2.80
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*/
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void
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gi_callable_info_destroy_closure (GICallableInfo *callable_info,
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@ -34,38 +34,48 @@ G_BEGIN_DECLS
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/**
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* GIFFIClosureCallback:
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* @Param1: TODO
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* @Param2: TODO
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* @Param3: TODO
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* @Param4: TODO
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* @cif: the `ffi_cif` passed to
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* [method@GIRepository.CallableInfo.create_closure]
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* @ret: (out caller-allocates): a pointer to the memory used for the function’s
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* return value
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* @args: a vector of pointers to memory holding the arguments to the function
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* @user_data: the user data passed to
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* [method@GIRepository.CallableInfo.create_closure]
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*
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* TODO
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* The function which will be called when a closure created with
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* [method@GIRepository.CallableInfo.create_closure] is invoked.
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*
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* The value of @ret is undefined if the function returns `void`.
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*
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* Since: 2.80
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*/
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typedef void (*GIFFIClosureCallback) (ffi_cif *,
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void *,
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void **,
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void *);
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typedef void (*GIFFIClosureCallback) (ffi_cif *cif,
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void *ret,
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void **args,
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void *user_data);
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/**
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* GIFunctionInvoker:
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* @cif: the cif
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* @native_address: the native address
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*
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* TODO
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* Structure containing the data necessary to invoke a callable function.
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*
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* Since: 2.80
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*/
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typedef struct _GIFunctionInvoker GIFunctionInvoker;
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struct _GIFunctionInvoker {
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typedef struct {
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ffi_cif cif;
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gpointer native_address;
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/*< private >*/
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gpointer padding[3];
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};
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} GIFunctionInvoker;
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/**
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* GIFFIReturnValue:
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*
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* TODO
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* The type of a return value from a callable invocation closure.
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*
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* Since: 2.80
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*/
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typedef GIArgument GIFFIReturnValue;
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