mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-25 15:06:14 +01:00
372ed18253
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
129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
|
||
* GObject introspection: Helper functions for ffi integration
|
||
*
|
||
* Copyright (C) 2008 Red Hat, Inc
|
||
*
|
||
* SPDX-License-Identifier: LGPL-2.1-or-later
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2 of the License, or (at your option) any later version.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with this library; if not, write to the
|
||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
* Boston, MA 02111-1307, USA.
|
||
*/
|
||
|
||
#pragma once
|
||
|
||
#if !defined (__GIREPOSITORY_H_INSIDE__) && !defined (GI_COMPILATION)
|
||
#error "Only <girepository.h> can be included directly."
|
||
#endif
|
||
|
||
#include <ffi.h>
|
||
#include "girepository.h"
|
||
|
||
G_BEGIN_DECLS
|
||
|
||
/**
|
||
* GIFFIClosureCallback:
|
||
* @cif: the `ffi_cif` passed to
|
||
* [method@GIRepository.CallableInfo.create_closure]
|
||
* @ret: (out caller-allocates): a pointer to the memory used for the function’s
|
||
* return value
|
||
* @args: a vector of pointers to memory holding the arguments to the function
|
||
* @user_data: the user data passed to
|
||
* [method@GIRepository.CallableInfo.create_closure]
|
||
*
|
||
* The function which will be called when a closure created with
|
||
* [method@GIRepository.CallableInfo.create_closure] is invoked.
|
||
*
|
||
* The value of @ret is undefined if the function returns `void`.
|
||
*
|
||
* Since: 2.80
|
||
*/
|
||
typedef void (*GIFFIClosureCallback) (ffi_cif *cif,
|
||
void *ret,
|
||
void **args,
|
||
void *user_data);
|
||
|
||
/**
|
||
* GIFunctionInvoker:
|
||
* @cif: the cif
|
||
* @native_address: the native address
|
||
*
|
||
* Structure containing the data necessary to invoke a callable function.
|
||
*
|
||
* Since: 2.80
|
||
*/
|
||
typedef struct {
|
||
ffi_cif cif;
|
||
gpointer native_address;
|
||
/*< private >*/
|
||
gpointer padding[3];
|
||
} GIFunctionInvoker;
|
||
|
||
/**
|
||
* GIFFIReturnValue:
|
||
*
|
||
* The type of a return value from a callable invocation closure.
|
||
*
|
||
* Since: 2.80
|
||
*/
|
||
typedef GIArgument GIFFIReturnValue;
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
ffi_type * gi_type_tag_get_ffi_type (GITypeTag type_tag, gboolean is_pointer);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
ffi_type * gi_type_info_get_ffi_type (GITypeInfo *info);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
void gi_type_info_extract_ffi_return_value (GITypeInfo *return_info,
|
||
GIFFIReturnValue *ffi_value,
|
||
GIArgument *arg);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
void gi_type_tag_extract_ffi_return_value (GITypeTag return_tag,
|
||
GIInfoType interface_type,
|
||
GIFFIReturnValue *ffi_value,
|
||
GIArgument *arg);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
gboolean gi_function_info_prep_invoker (GIFunctionInfo *info,
|
||
GIFunctionInvoker *invoker,
|
||
GError **error);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
gboolean gi_function_invoker_new_for_address (gpointer addr,
|
||
GICallableInfo *info,
|
||
GIFunctionInvoker *invoker,
|
||
GError **error);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
void gi_function_invoker_destroy (GIFunctionInvoker *invoker);
|
||
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
ffi_closure * gi_callable_info_create_closure (GICallableInfo *callable_info,
|
||
ffi_cif *cif,
|
||
GIFFIClosureCallback callback,
|
||
gpointer user_data);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
gpointer * gi_callable_info_get_closure_native_address (GICallableInfo *callable_info,
|
||
ffi_closure *closure);
|
||
|
||
GI_AVAILABLE_IN_ALL
|
||
void gi_callable_info_destroy_closure (GICallableInfo *callable_info,
|
||
ffi_closure *closure);
|
||
|
||
G_END_DECLS
|