glibc GDBusInterfaceVTable

static const GDBusInterfaceVTable boo_vtable =
{
  NULL, /* _method_call */
  NULL, /* _get_property */
  NULL  /* _set_property */
};

/**
 * GDBusInterfaceVTable:
 * @method_call: Function for handling incoming method calls.
 * @get_property: Function for getting a property.
 * @set_property: Function for setting a property.
 *
 * Virtual table for handling properties and method calls for a D-Bus
 * interface.
 *
 * If you want to handle getting/setting D-Bus properties asynchronously, simply
 * register an object with the <literal>org.freedesktop.DBus.Properties</literal>
 * D-Bus interface using g_dbus_connection_register_object().
 *
 * Since: 2.26
 */
struct _GDBusInterfaceVTable
{
  GDBusInterfaceMethodCallFunc  method_call;
  GDBusInterfaceGetPropertyFunc get_property;
  GDBusInterfaceSetPropertyFunc set_property;

  /*< private >*/
  /* Padding for future expansion - also remember to update
   * gdbusconnection.c:_g_dbus_interface_vtable_copy() when
   * changing this.
   */
  gpointer padding[8];
};

　　

/**
 * GDBusInterfaceMethodCallFunc:
 * @connection: A #GDBusConnection.
 * @sender: The unique bus name of the remote caller.
 * @object_path: The object path that the method was invoked on.
 * @interface_name: The D-Bus interface name the method was invoked on.
 * @method_name: The name of the method that was invoked.
 * @parameters: A #GVariant tuple with parameters.
 * @invocation: A #GDBusMethodInvocation object that can be used to return a value or error.
 * @user_data: The @user_data #gpointer passed to g_dbus_connection_register_object().
 *
 * The type of the @method_call function in #GDBusInterfaceVTable.
 *
 * Since: 2.26
 */
typedef void (*GDBusInterfaceMethodCallFunc) (GDBusConnection       *connection,
                                              const gchar           *sender,
                                              const gchar           *object_path,
                                              const gchar           *interface_name,
                                              const gchar           *method_name,
                                              GVariant              *parameters,
                                              GDBusMethodInvocation *invocation,
                                              gpointer               user_data);

　　

/**
 * GDBusInterfaceMethodCallFunc:
 * @connection: A #GDBusConnection.
 * @sender: The unique bus name of the remote caller.
 * @object_path: The object path that the method was invoked on.
 * @interface_name: The D-Bus interface name the method was invoked on.
 * @method_name: The name of the method that was invoked.
 * @parameters: A #GVariant tuple with parameters.
 * @invocation: A #GDBusMethodInvocation object that can be used to return a value or error.
 * @user_data: The @user_data #gpointer passed to g_dbus_connection_register_object().
 *
 * The type of the @method_call function in #GDBusInterfaceVTable.
 *
 * Since: 2.26
 */
typedef void (*GDBusInterfaceMethodCallFunc) (GDBusConnection       *connection,
                                              const gchar           *sender,
                                              const gchar           *object_path,
                                              const gchar           *interface_name,
                                              const gchar           *method_name,
                                              GVariant              *parameters,
                                              GDBusMethodInvocation *invocation,
                                              gpointer               user_data);

/**
 * GDBusInterfaceGetPropertyFunc:
 * @connection: A #GDBusConnection.
 * @sender: The unique bus name of the remote caller.
 * @object_path: The object path that the method was invoked on.
 * @interface_name: The D-Bus interface name for the property.
 * @property_name: The name of the property to get the value of.
 * @error: Return location for error.
 * @user_data: The @user_data #gpointer passed to g_dbus_connection_register_object().
 *
 * The type of the @get_property function in #GDBusInterfaceVTable.
 *
 * Returns: A #GVariant with the value for @property_name or %NULL if
 *     @error is set. If the returned #GVariant is floating, it is
 *     consumed - otherwise its reference count is decreased by one.
 *
 * Since: 2.26
 */
typedef GVariant *(*GDBusInterfaceGetPropertyFunc) (GDBusConnection       *connection,
                                                    const gchar           *sender,
                                                    const gchar           *object_path,
                                                    const gchar           *interface_name,
                                                    const gchar           *property_name,
                                                    GError               **error,
                                                    gpointer               user_data);

/**
 * GDBusInterfaceSetPropertyFunc:
 * @connection: A #GDBusConnection.
 * @sender: The unique bus name of the remote caller.
 * @object_path: The object path that the method was invoked on.
 * @interface_name: The D-Bus interface name for the property.
 * @property_name: The name of the property to get the value of.
 * @value: The value to set the property to.
 * @error: Return location for error.
 * @user_data: The @user_data #gpointer passed to g_dbus_connection_register_object().
 *
 * The type of the @set_property function in #GDBusInterfaceVTable.
 *
 * Returns: %TRUE if the property was set to @value, %FALSE if @error is set.
 *
 * Since: 2.26
 */
typedef gboolean  (*GDBusInterfaceSetPropertyFunc) (GDBusConnection       *connection,
                                                    const gchar           *sender,
                                                    const gchar           *object_path,
                                                    const gchar           *interface_name,
                                                    const gchar           *property_name,
                                                    GVariant              *value,
                                                    GError               **error,
                                                    gpointer               user_data);