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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>
116 lines
5.8 KiB
C
116 lines
5.8 KiB
C
/*
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* Copyright © 2010 Codethink Limited
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* Copyright © 2011 Canonical Limited
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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 Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_SETTINGS_SCHEMA_H__
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#define __G_SETTINGS_SCHEMA_H__
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#include <glib-object.h>
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#include <gio/gio-visibility.h>
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G_BEGIN_DECLS
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typedef struct _GSettingsSchemaSource GSettingsSchemaSource;
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typedef struct _GSettingsSchema GSettingsSchema;
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typedef struct _GSettingsSchemaKey GSettingsSchemaKey;
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#define G_TYPE_SETTINGS_SCHEMA_SOURCE (g_settings_schema_source_get_type ())
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GIO_AVAILABLE_IN_2_32
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GType g_settings_schema_source_get_type (void);
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GIO_AVAILABLE_IN_2_32
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GSettingsSchemaSource * g_settings_schema_source_get_default (void);
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GIO_AVAILABLE_IN_2_32
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GSettingsSchemaSource * g_settings_schema_source_ref (GSettingsSchemaSource *source);
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GIO_AVAILABLE_IN_2_32
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void g_settings_schema_source_unref (GSettingsSchemaSource *source);
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GIO_AVAILABLE_IN_2_32
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GSettingsSchemaSource * g_settings_schema_source_new_from_directory (const gchar *directory,
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GSettingsSchemaSource *parent,
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gboolean trusted,
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GError **error);
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GIO_AVAILABLE_IN_2_32
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GSettingsSchema * g_settings_schema_source_lookup (GSettingsSchemaSource *source,
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const gchar *schema_id,
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gboolean recursive);
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GIO_AVAILABLE_IN_2_40
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void g_settings_schema_source_list_schemas (GSettingsSchemaSource *source,
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gboolean recursive,
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gchar ***non_relocatable,
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gchar ***relocatable);
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#define G_TYPE_SETTINGS_SCHEMA (g_settings_schema_get_type ())
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GIO_AVAILABLE_IN_2_32
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GType g_settings_schema_get_type (void);
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GIO_AVAILABLE_IN_2_32
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GSettingsSchema * g_settings_schema_ref (GSettingsSchema *schema);
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GIO_AVAILABLE_IN_2_32
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void g_settings_schema_unref (GSettingsSchema *schema);
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GIO_AVAILABLE_IN_2_32
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const gchar * g_settings_schema_get_id (GSettingsSchema *schema);
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GIO_AVAILABLE_IN_2_32
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const gchar * g_settings_schema_get_path (GSettingsSchema *schema);
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GIO_AVAILABLE_IN_2_40
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GSettingsSchemaKey * g_settings_schema_get_key (GSettingsSchema *schema,
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const gchar *name);
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GIO_AVAILABLE_IN_2_40
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gboolean g_settings_schema_has_key (GSettingsSchema *schema,
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const gchar *name);
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GIO_AVAILABLE_IN_2_46
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gchar** g_settings_schema_list_keys (GSettingsSchema *schema);
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GIO_AVAILABLE_IN_2_44
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gchar ** g_settings_schema_list_children (GSettingsSchema *schema);
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#define G_TYPE_SETTINGS_SCHEMA_KEY (g_settings_schema_key_get_type ())
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GIO_AVAILABLE_IN_2_40
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GType g_settings_schema_key_get_type (void);
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GIO_AVAILABLE_IN_2_40
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GSettingsSchemaKey * g_settings_schema_key_ref (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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void g_settings_schema_key_unref (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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const GVariantType * g_settings_schema_key_get_value_type (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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GVariant * g_settings_schema_key_get_default_value (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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GVariant * g_settings_schema_key_get_range (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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gboolean g_settings_schema_key_range_check (GSettingsSchemaKey *key,
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GVariant *value);
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GIO_AVAILABLE_IN_2_44
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const gchar * g_settings_schema_key_get_name (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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const gchar * g_settings_schema_key_get_summary (GSettingsSchemaKey *key);
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GIO_AVAILABLE_IN_2_40
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const gchar * g_settings_schema_key_get_description (GSettingsSchemaKey *key);
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G_END_DECLS
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#endif /* __G_SETTINGS_SCHEMA_H__ */
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