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016829559e
g_type_ensure has a large comment saying _get_type shouldn't be marked with G_GNUC_CONST because it has side-effects on the first run, but it's OK if you consistently call g_type_ensure first. Unfortunately, this isn't accurate. GCC trunk (observed at r17-1725-ge259a182e1f100) now analyses points-to information more effectively and propagates its findings, so it sees the function modifies some global state, concludes that can't be possible (because of the const attribute), and deletes the stores. pure unfortunately is unsuitable for *_get_type too as it has a side-effect (writes to global memory). Mesa had a similar issue which I fixed recently [0]. glib and glibmm likely want the (not-yet-implemented) 'idempotent' attribute instead [1]. In fact, this exact problem is what motivated that request! :) ebassi mentions an alternative to the current setup as well, using atomics [2]. This problem has gone back many years but the compiler has finally fully outsmarted us here, so give in. [0] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/42361 [1] https://gcc.gnu.org/PR32911 [2] https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4249#note_2583110 Fixes: https://gitlab.gnome.org/GNOME/glib/-/work_items/3984 Signed-off-by: Sam James <sam@gentoo.org>
129 lines
6.3 KiB
C
129 lines
6.3 KiB
C
/* GDBus - GLib D-Bus Library
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*
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* Copyright (C) 2008-2010 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: David Zeuthen <davidz@redhat.com>
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*/
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#ifndef __G_DBUS_INTERFACE_SKELETON_H__
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#define __G_DBUS_INTERFACE_SKELETON_H__
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#include <gio/gdbusconnection.h>
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#include <gio/giotypes.h>
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G_BEGIN_DECLS
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#define G_TYPE_DBUS_INTERFACE_SKELETON (g_dbus_interface_skeleton_get_type ())
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#define G_DBUS_INTERFACE_SKELETON(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeleton))
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#define G_DBUS_INTERFACE_SKELETON_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeletonClass))
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#define G_DBUS_INTERFACE_SKELETON_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeletonClass))
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#define G_IS_DBUS_INTERFACE_SKELETON(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_DBUS_INTERFACE_SKELETON))
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#define G_IS_DBUS_INTERFACE_SKELETON_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_DBUS_INTERFACE_SKELETON))
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typedef struct _GDBusInterfaceSkeletonClass GDBusInterfaceSkeletonClass;
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typedef struct _GDBusInterfaceSkeletonPrivate GDBusInterfaceSkeletonPrivate;
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struct _GDBusInterfaceSkeleton
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{
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/*< private >*/
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GObject parent_instance;
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GDBusInterfaceSkeletonPrivate *priv;
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};
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/**
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* GDBusInterfaceSkeletonClass:
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* @parent_class: The parent class.
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* @get_info: Returns a #GDBusInterfaceInfo. See g_dbus_interface_skeleton_get_info() for details.
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* @get_vtable: Returns a #GDBusInterfaceVTable. See g_dbus_interface_skeleton_get_vtable() for details.
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* @get_properties: Returns a #GVariant with all properties. See g_dbus_interface_skeleton_get_properties().
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* @flush: Emits outstanding changes, if any. See g_dbus_interface_skeleton_flush().
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* @method_dispatch: Dispatches a method invocation. (Since: 2.88)
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* @g_authorize_method: Signal class handler for the #GDBusInterfaceSkeleton::g-authorize-method signal.
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*
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* Class structure for #GDBusInterfaceSkeleton.
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*
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* Since: 2.30
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*/
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struct _GDBusInterfaceSkeletonClass
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{
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GObjectClass parent_class;
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/* Virtual Functions */
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GDBusInterfaceInfo *(*get_info) (GDBusInterfaceSkeleton *interface_);
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GDBusInterfaceVTable *(*get_vtable) (GDBusInterfaceSkeleton *interface_);
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GVariant *(*get_properties) (GDBusInterfaceSkeleton *interface_);
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void (*flush) (GDBusInterfaceSkeleton *interface_);
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void (*method_dispatch) (GDBusInterfaceSkeleton *interface_,
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GDBusInterfaceMethodCallFunc method_call_func,
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GDBusMethodInvocation *invocation,
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GDBusInterfaceSkeletonFlags flags,
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GDBusObject *object);
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/*< private >*/
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gpointer vfunc_padding[7];
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/*< public >*/
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/* Signals */
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gboolean (*g_authorize_method) (GDBusInterfaceSkeleton *interface_,
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GDBusMethodInvocation *invocation);
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/*< private >*/
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gpointer signal_padding[8];
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};
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GIO_AVAILABLE_IN_ALL
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GType g_dbus_interface_skeleton_get_type (void);
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GIO_AVAILABLE_IN_ALL
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GDBusInterfaceSkeletonFlags g_dbus_interface_skeleton_get_flags (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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void g_dbus_interface_skeleton_set_flags (GDBusInterfaceSkeleton *interface_,
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GDBusInterfaceSkeletonFlags flags);
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GIO_AVAILABLE_IN_ALL
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GDBusInterfaceInfo *g_dbus_interface_skeleton_get_info (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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GDBusInterfaceVTable *g_dbus_interface_skeleton_get_vtable (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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GVariant *g_dbus_interface_skeleton_get_properties (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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void g_dbus_interface_skeleton_flush (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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gboolean g_dbus_interface_skeleton_export (GDBusInterfaceSkeleton *interface_,
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GDBusConnection *connection,
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const gchar *object_path,
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GError **error);
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GIO_AVAILABLE_IN_ALL
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void g_dbus_interface_skeleton_unexport (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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void g_dbus_interface_skeleton_unexport_from_connection (GDBusInterfaceSkeleton *interface_,
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GDBusConnection *connection);
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GIO_AVAILABLE_IN_ALL
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GDBusConnection *g_dbus_interface_skeleton_get_connection (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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GList *g_dbus_interface_skeleton_get_connections (GDBusInterfaceSkeleton *interface_);
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GIO_AVAILABLE_IN_ALL
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gboolean g_dbus_interface_skeleton_has_connection (GDBusInterfaceSkeleton *interface_,
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GDBusConnection *connection);
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GIO_AVAILABLE_IN_ALL
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const gchar *g_dbus_interface_skeleton_get_object_path (GDBusInterfaceSkeleton *interface_);
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G_END_DECLS
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#endif /* __G_DBUS_INTERFACE_SKELETON_H */
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