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/*
* Copyright © 2010 Codethink Limited
*
* 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 licence, 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __dconf_engine_h__
#define __dconf_engine_h__
#include "../common/dconf-changeset.h"
#include "../common/dconf-enums.h"
#include <gio/gio.h>
typedef struct _DConfEngine DConfEngine;
typedef struct _DConfEngineCallHandle DConfEngineCallHandle;
/* These functions need to be implemented by the client library */
G_GNUC_INTERNAL
void dconf_engine_dbus_init_for_testing (void);
/* Sends a D-Bus message.
*
* When the reply comes back, the client library should call
* dconf_engine_handle_dbus_reply with the given user_data.
*
* This is called with the engine lock held. Re-entering the engine
* from this function will cause a deadlock.
*/
G_GNUC_INTERNAL
gboolean dconf_engine_dbus_call_async_func (GBusType bus_type,
const gchar *bus_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
DConfEngineCallHandle *handle,
GError **error);
/* Sends a D-Bus message, synchronously.
*
* The lock is never held when calling this function (for the sake of
* not blocking requests in other threads) but you should have no reason
* to re-enter, so don't.
*/
G_GNUC_INTERNAL
GVariant * dconf_engine_dbus_call_sync_func (GBusType bus_type,
const gchar *bus_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
const GVariantType *expected_type,
GError **error);
/* Helper function used by the client library to handle bus disconnection */
G_GNUC_INTERNAL
void dconf_engine_dbus_handle_connection_closed (GDBusConnection *connection,
gboolean remote_peer_vanished,
GError *error,
GMutex *bus_lock,
gboolean *bus_is_error,
gpointer *bus_data,
GCallback bus_closed_callback,
gpointer bus_closed_callback_user_data);
/* Notifies that a change occurred.
*
* The engine lock is never held when calling this function so it is
* safe to run user callbacks or emit signals from this function.
*/
G_GNUC_INTERNAL
void dconf_engine_change_notify (DConfEngine *engine,
const gchar *prefix,
const gchar * const *changes,
const gchar *tag,
gboolean is_writability,
gpointer origin_tag,
gpointer user_data);
/* These functions are implemented by the engine */
G_GNUC_INTERNAL
const GVariantType * dconf_engine_call_handle_get_expected_type (DConfEngineCallHandle *handle);
G_GNUC_INTERNAL
void dconf_engine_call_handle_reply (DConfEngineCallHandle *handle,
GVariant *parameters,
const GError *error);
G_GNUC_INTERNAL
void dconf_engine_handle_dbus_signal (GBusType bus_type,
const gchar *bus_name,
const gchar *object_path,
const gchar *signal_name,
GVariant *parameters);
G_GNUC_INTERNAL
DConfEngine * dconf_engine_new (const gchar *profile,
gpointer user_data,
GDestroyNotify free_func);
G_GNUC_INTERNAL
void dconf_engine_unref (DConfEngine *engine);
/* Read API: always handled immediately */
G_GNUC_INTERNAL
guint64 dconf_engine_get_state (DConfEngine *engine);
G_GNUC_INTERNAL
gboolean dconf_engine_is_writable (DConfEngine *engine,
const gchar *key);
G_GNUC_INTERNAL
gchar ** dconf_engine_list_locks (DConfEngine *engine,
const gchar *path,
gint *length);
G_GNUC_INTERNAL
GVariant * dconf_engine_read (DConfEngine *engine,
DConfReadFlags flags,
const GQueue *read_through,
const gchar *key);
G_GNUC_INTERNAL
gchar ** dconf_engine_list (DConfEngine *engine,
const gchar *dir,
gint *length);
/* "Fast" API: all calls return immediately and look like they succeeded (from a local viewpoint) */
G_GNUC_INTERNAL
void dconf_engine_watch_fast (DConfEngine *engine,
const gchar *path);
G_GNUC_INTERNAL
void dconf_engine_unwatch_fast (DConfEngine *engine,
const gchar *path);
G_GNUC_INTERNAL
gboolean dconf_engine_change_fast (DConfEngine *engine,
DConfChangeset *changeset,
gpointer origin_tag,
GError **error);
/* Synchronous API: all calls block until completed */
G_GNUC_INTERNAL
void dconf_engine_watch_sync (DConfEngine *engine,
const gchar *path);
G_GNUC_INTERNAL
void dconf_engine_unwatch_sync (DConfEngine *engine,
const gchar *path);
G_GNUC_INTERNAL
gboolean dconf_engine_change_sync (DConfEngine *engine,
DConfChangeset *changeset,
gchar **tag,
GError **error);
G_GNUC_INTERNAL
gboolean dconf_engine_has_outstanding (DConfEngine *engine);
G_GNUC_INTERNAL
void dconf_engine_sync (DConfEngine *engine);
/* Asynchronous API: not implemented yet (and maybe never?) */
#endif /* __dconf_engine_h__ */
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