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bluez5: add GDBus-based object monitor framework

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Pauli Virtanen 2022-11-14 01:48:27 +02:00 • committed by Wim Taymans
parent 8d438d26ab
commit de595a78ff
6 changed files with 393 additions and 6 deletions
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76
spa/plugins/bluez5/dbus-monitor.h Normal file
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/* Spa midi dbus
*
* Copyright © 2022 Pauli Virtanen
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef DBUS_MONITOR_H_
#define DBUS_MONITOR_H_
#include <gio/gio.h>
#include <spa/utils/defs.h>
#include <spa/utils/string.h>
#include <spa/support/log.h>
#define DBUS_MONITOR_MAX_TYPES 16
struct dbus_monitor;
struct dbus_monitor_proxy_type
{
const char *interface_name;
GType proxy_type;
void (*on_object_update)(struct dbus_monitor *monitor, GDBusInterface *iface);
void (*on_clear)(struct dbus_monitor *monitor, GDBusInterface *iface);
};
struct dbus_monitor
{
GDBusObjectManagerClient *manager;
struct spa_log *log;
GCancellable *call;
struct dbus_monitor_proxy_type proxy_types[DBUS_MONITOR_MAX_TYPES+1];
void (*on_name_owner_change)(struct dbus_monitor *monitor);
void *user_data;
};
static inline GDBusObjectManager *dbus_monitor_manager(struct dbus_monitor *monitor)
{
return G_DBUS_OBJECT_MANAGER(monitor->manager);
}
/**
* Create a DBus object monitor, with a given interface to proxy type map.
*
* \param proxy_types Mapping between interface names and watched proxy
* types, terminated by G_TYPE_INVALID.
* \param on_object_update Called for all objects and interfaces on
* startup, and when object properties are modified.
*/
void dbus_monitor_init(struct dbus_monitor *monitor,
GType client_type, struct spa_log *log, GDBusConnection *conn,
const char *name, const char *object_path,
const struct dbus_monitor_proxy_type *proxy_types,
void (*on_name_owner_change)(struct dbus_monitor *monitor));
void dbus_monitor_clear(struct dbus_monitor *monitor);
#endif DBUS_MONITOR_H_