mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-01 22:58:50 -04:00
Rework dbus handling
Remove the Daemon object and remove all dbus code from the main objects. We can use the signals in a separate module to create and destroy the DBus interfaces. Move the dbus protocol in a module Move the autolink policy to a module
This commit is contained in:
Wim Taymans
parent
b9e2b1c0e3
commit
dfbfb4c9ee
28 changed files with 1122 additions and 1007 deletions
681
pinos/modules/module-protocol-dbus.c
Normal file
681
pinos/modules/module-protocol-dbus.c
Normal file
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@ -0,0 +1,681 @@
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/* Pinos
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* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include <gio/gio.h>
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#include <gio/gunixfdlist.h>
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#include "config.h"
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#include "pinos/client/pinos.h"
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#include "pinos/client/log.h"
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#include "pinos/server/core.h"
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#include "pinos/server/node.h"
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#include "pinos/server/module.h"
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#include "pinos/server/client-node.h"
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#include "pinos/server/client.h"
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#include "pinos/server/link.h"
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#include "pinos/server/node-factory.h"
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#include "pinos/server/data-loop.h"
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#include "pinos/server/main-loop.h"
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#include "pinos/dbus/org-pinos.h"
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#define PINOS_PROTOCOL_DBUS_URI "http://pinos.org/ns/protocol-dbus"
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#define PINOS_PROTOCOL_DBUS_PREFIX PINOS_PROTOCOL_DBUS_URI "#"
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typedef struct _PinosProtocolDBus PinosProtocolDBus;
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struct _PinosProtocolDBus {
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PinosCore *core;
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SpaList link;
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PinosGlobal *global;
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PinosProperties *properties;
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PINOS_SIGNAL (destroy_signal, (PinosListener *listener,
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PinosProtocolDBus *proto));
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};
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typedef struct {
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PinosProtocolDBus this;
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struct {
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uint32_t protocol_dbus;
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} uri;
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GDBusConnection *connection;
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GDBusObjectManagerServer *server_manager;
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SpaList client_list;
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SpaList object_list;
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PinosListener global_added;
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PinosListener global_removed;
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PinosListener node_state_changed;
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} PinosProtocolDBusImpl;
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typedef struct {
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PinosProtocolDBusImpl *impl;
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SpaList link;
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void *object;
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void *iface;
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PinosObjectSkeleton *skel;
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const gchar *object_path;
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PinosDestroy destroy;
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} PinosProtocolDBusObject;
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typedef struct {
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PinosProtocolDBusObject parent;
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SpaList link;
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guint id;
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} PinosProtocolDBusServer;
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typedef struct {
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PinosProtocolDBusObject parent;
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SpaList link;
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gchar *sender;
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guint id;
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} PinosProtocolDBusClient;
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typedef struct {
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PinosProtocolDBusObject parent;
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PinosListener state_changed;
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} PinosProtocolDBusNode;
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static void
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object_export (PinosProtocolDBusObject *this)
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{
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g_dbus_object_manager_server_export_uniquely (this->impl->server_manager,
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G_DBUS_OBJECT_SKELETON (this->skel));
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this->object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (this->skel));
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pinos_log_debug ("protocol-dbus %p: export object %s", this->impl, this->object_path);
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}
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static void
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object_unexport (PinosProtocolDBusObject *this)
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{
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if (this->object_path)
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g_dbus_object_manager_server_unexport (this->impl->server_manager, this->object_path);
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}
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static void *
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object_new (size_t size,
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PinosProtocolDBusImpl *impl,
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void *object,
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void *iface,
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PinosObjectSkeleton *skel,
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bool export,
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PinosDestroy destroy)
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{
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PinosProtocolDBusObject *this;
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this = calloc (1, size);
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this->impl = impl;
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this->object = object;
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this->iface = iface;
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this->skel = skel;
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this->destroy = destroy;
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spa_list_insert (impl->object_list.prev, &this->link);
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if (export)
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object_export (this);
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return this;
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}
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static void
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object_destroy (PinosProtocolDBusObject *this)
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{
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spa_list_remove (&this->link);
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if (this->destroy)
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this->destroy (this);
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object_unexport (this);
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g_clear_object (&this->iface);
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g_clear_object (&this->skel);
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free (this);
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}
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static PinosProtocolDBusObject *
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find_object (PinosProtocolDBusImpl *impl,
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void *object)
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{
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PinosProtocolDBusObject *obj;
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spa_list_for_each (obj, &impl->object_list, link) {
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if (obj->object == object)
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return obj;
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}
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return NULL;
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}
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static void
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client_name_appeared_handler (GDBusConnection *connection,
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const gchar *name,
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const gchar *name_owner,
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gpointer user_data)
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{
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PinosProtocolDBusClient *this = user_data;
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pinos_log_debug ("client %p: appeared %s %s", this, name, name_owner);
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object_export (&this->parent);
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}
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static void
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client_destroy (PinosProtocolDBusClient *this)
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{
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spa_list_remove (&this->link);
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free (this->sender);
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}
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static void
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client_name_vanished_handler (GDBusConnection *connection,
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const gchar *name,
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gpointer user_data)
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{
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PinosProtocolDBusClient *this = user_data;
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pinos_log_debug ("client %p: vanished %s", this, name);
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g_bus_unwatch_name (this->id);
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/* destroying the client here will trigger the global_removed, which
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* will then destroy our wrapper */
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pinos_client_destroy (this->parent.object);
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}
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static PinosProtocolDBusClient *
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client_new (PinosProtocolDBusImpl *impl,
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const char *sender)
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{
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PinosProtocolDBus *proto = &impl->this;
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PinosProtocolDBusClient *this;
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PinosClient *client;
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PinosObjectSkeleton *skel;
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PinosClient1 *iface;
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client = pinos_client_new (proto->core, NULL);
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iface = pinos_client1_skeleton_new ();
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skel = pinos_object_skeleton_new (PINOS_DBUS_OBJECT_CLIENT);
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pinos_object_skeleton_set_client1 (skel, iface);
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this = object_new (sizeof (PinosProtocolDBusClient),
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impl,
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client,
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iface,
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skel,
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false,
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(PinosDestroy) client_destroy);
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this->sender = strdup (sender);
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this->id = g_bus_watch_name_on_connection (impl->connection,
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this->sender,
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G_BUS_NAME_WATCHER_FLAGS_NONE,
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client_name_appeared_handler,
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client_name_vanished_handler,
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this,
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NULL);
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spa_list_insert (impl->client_list.prev, &this->link);
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return this;
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}
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static PinosClient *
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sender_get_client (PinosProtocolDBus *proto,
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const char *sender,
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bool create)
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{
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PinosProtocolDBusImpl *impl = SPA_CONTAINER_OF (proto, PinosProtocolDBusImpl, this);
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PinosProtocolDBusClient *client;
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spa_list_for_each (client, &impl->client_list, link) {
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if (strcmp (client->sender, sender) == 0)
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return client->parent.object;
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}
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if (!create)
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return NULL;
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client = client_new (impl, sender);
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return client->parent.object;
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}
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static PinosNodeFactory *
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find_factory_by_name (PinosProtocolDBus *proto,
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const char *name)
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{
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PinosNodeFactory *factory;
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spa_list_for_each (factory, &proto->core->node_factory_list, link) {
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if (strcmp (factory->name, name) == 0)
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return factory;
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}
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return NULL;
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}
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static bool
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handle_create_node (PinosDaemon1 *interface,
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GDBusMethodInvocation *invocation,
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const char *arg_factory_name,
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const char *arg_name,
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GVariant *arg_properties,
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gpointer user_data)
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{
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PinosProtocolDBusImpl *impl = user_data;
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PinosProtocolDBus *this = &impl->this;
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PinosNodeFactory *factory;
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PinosNode *node;
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PinosClient *client;
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const char *sender, *object_path;
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PinosProperties *props;
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PinosProtocolDBusObject *object;
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sender = g_dbus_method_invocation_get_sender (invocation);
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client = sender_get_client (this, sender, TRUE);
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pinos_log_debug ("protocol-dbus %p: create node: %s", impl, sender);
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props = pinos_properties_from_variant (arg_properties);
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factory = find_factory_by_name (this, arg_factory_name);
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if (factory == NULL)
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goto no_factory;
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node = pinos_node_factory_create_node (factory,
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client,
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arg_name,
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props);
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pinos_properties_free (props);
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if (node == NULL)
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goto no_node;
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object = find_object (impl, node);
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if (object == NULL)
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goto object_failed;
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pinos_client_add_resource (client,
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this->core->registry.uri.node,
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node,
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(PinosDestroy) pinos_node_destroy);
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object_path = object->object_path;
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pinos_log_debug ("protocol-dbus %p: added node %p with path %s", impl, node, object_path);
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g_dbus_method_invocation_return_value (invocation,
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g_variant_new ("(o)", object_path));
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return TRUE;
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/* ERRORS */
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no_factory:
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{
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pinos_log_debug ("protocol-dbus %p: could not find factory named %s", impl, arg_factory_name);
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g_dbus_method_invocation_return_dbus_error (invocation,
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"org.pinos.Error", "can't find factory");
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return TRUE;
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}
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no_node:
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{
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pinos_log_debug ("protocol-dbus %p: could not create node named %s from factory %s", impl, arg_name, arg_factory_name);
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g_dbus_method_invocation_return_dbus_error (invocation,
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"org.pinos.Error", "can't create node");
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return TRUE;
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}
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object_failed:
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{
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pinos_log_debug ("protocol-dbus %p: could not create dbus object", impl);
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g_dbus_method_invocation_return_dbus_error (invocation,
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"org.pinos.Error", "can't create object");
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return TRUE;
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}
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}
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static void
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on_node_state_changed (PinosListener *listener,
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PinosNode *node,
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PinosNodeState old,
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PinosNodeState state)
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{
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PinosProtocolDBusImpl *impl = SPA_CONTAINER_OF (listener, PinosProtocolDBusImpl, node_state_changed);
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PinosProtocolDBusObject *object;
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pinos_log_debug ("protocol-dbus %p: node %p state change %s -> %s", impl, node,
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pinos_node_state_as_string (old),
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pinos_node_state_as_string (state));
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if ((object = find_object (impl, node))) {
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pinos_node1_set_state (object->iface, node->state);
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}
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}
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static bool
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handle_create_client_node (PinosDaemon1 *interface,
|
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GDBusMethodInvocation *invocation,
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const char *arg_name,
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GVariant *arg_properties,
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gpointer user_data)
|
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{
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PinosProtocolDBusImpl *impl = user_data;
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PinosProtocolDBus *this = &impl->this;
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PinosClientNode *node;
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PinosClient *client;
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SpaResult res;
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const char *sender, *object_path;
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PinosProperties *props;
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GError *error = NULL;
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GUnixFDList *fdlist;
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int ctrl_fd, data_fd;
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int ctrl_idx, data_idx;
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PinosProtocolDBusObject *object;
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sender = g_dbus_method_invocation_get_sender (invocation);
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client = sender_get_client (this, sender, TRUE);
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pinos_log_debug ("protocol-dbus %p: create client-node: %s", impl, sender);
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props = pinos_properties_from_variant (arg_properties);
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node = pinos_client_node_new (this->core,
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arg_name,
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props);
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object = find_object (impl, node->node);
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if (object == NULL)
|
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goto object_failed;
|
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|
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if ((res = pinos_client_node_get_ctrl_socket (node, &ctrl_fd)) < 0)
|
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goto no_socket;
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|
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if ((res = pinos_client_node_get_data_socket (node, &data_fd)) < 0)
|
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goto no_socket;
|
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|
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pinos_client_add_resource (client,
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this->core->registry.uri.client_node,
|
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node,
|
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(PinosDestroy) pinos_client_node_destroy);
|
||||
|
||||
|
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|
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object_path = object->object_path;
|
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pinos_log_debug ("protocol-dbus %p: add client-node %p, %s", impl, node, object_path);
|
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|
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fdlist = g_unix_fd_list_new ();
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ctrl_idx = g_unix_fd_list_append (fdlist, ctrl_fd, &error);
|
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data_idx = g_unix_fd_list_append (fdlist, data_fd, &error);
|
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|
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g_dbus_method_invocation_return_value_with_unix_fd_list (invocation,
|
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g_variant_new ("(ohh)", object_path, ctrl_idx, data_idx), fdlist);
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g_object_unref (fdlist);
|
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|
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return TRUE;
|
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|
||||
object_failed:
|
||||
{
|
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pinos_log_debug ("protocol-dbus %p: could not create object", impl);
|
||||
goto exit_error;
|
||||
}
|
||||
no_socket:
|
||||
{
|
||||
pinos_log_debug ("protocol-dbus %p: could not create socket: %s", impl, strerror (errno));
|
||||
pinos_client_node_destroy (node);
|
||||
goto exit_error;
|
||||
}
|
||||
exit_error:
|
||||
{
|
||||
g_dbus_method_invocation_return_gerror (invocation, error);
|
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g_clear_error (&error);
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
bus_acquired_handler (GDBusConnection *connection,
|
||||
const char *name,
|
||||
gpointer user_data)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl = user_data;
|
||||
GDBusObjectManagerServer *manager = impl->server_manager;
|
||||
|
||||
impl->connection = connection;
|
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g_dbus_object_manager_server_set_connection (manager, connection);
|
||||
}
|
||||
|
||||
static void
|
||||
name_acquired_handler (GDBusConnection *connection,
|
||||
const char *name,
|
||||
gpointer user_data)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
name_lost_handler (GDBusConnection *connection,
|
||||
const char *name,
|
||||
gpointer user_data)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl = user_data;
|
||||
GDBusObjectManagerServer *manager = impl->server_manager;
|
||||
|
||||
g_dbus_object_manager_server_set_connection (manager, connection);
|
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impl->connection = connection;
|
||||
}
|
||||
|
||||
static bool
|
||||
handle_node_remove (PinosNode1 *interface,
|
||||
GDBusMethodInvocation *invocation,
|
||||
gpointer user_data)
|
||||
{
|
||||
PinosNode *this = user_data;
|
||||
|
||||
pinos_log_debug ("node %p: remove", this);
|
||||
|
||||
g_dbus_method_invocation_return_value (invocation,
|
||||
g_variant_new ("()"));
|
||||
return true;
|
||||
}
|
||||
|
||||
static void
|
||||
on_global_added (PinosListener *listener,
|
||||
PinosCore *core,
|
||||
PinosGlobal *global)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl = SPA_CONTAINER_OF (listener, PinosProtocolDBusImpl, global_added);
|
||||
PinosProtocolDBus *this = &impl->this;
|
||||
PinosObjectSkeleton *skel;
|
||||
|
||||
if (global->type == this->core->registry.uri.node) {
|
||||
PinosNode1 *iface;
|
||||
PinosNode *node = global->object;
|
||||
PinosProperties *props = node->properties;
|
||||
|
||||
skel = pinos_object_skeleton_new (PINOS_DBUS_OBJECT_NODE);
|
||||
|
||||
iface = pinos_node1_skeleton_new ();
|
||||
g_signal_connect (iface, "handle-remove",
|
||||
(GCallback) handle_node_remove,
|
||||
node);
|
||||
pinos_node1_set_state (iface, node->state);
|
||||
pinos_node1_set_owner (iface, "/");
|
||||
pinos_node1_set_name (iface, node->name);
|
||||
pinos_node1_set_properties (iface, props ? pinos_properties_to_variant (props) : NULL);
|
||||
pinos_object_skeleton_set_node1 (skel, iface);
|
||||
|
||||
object_new (sizeof (PinosProtocolDBusNode),
|
||||
impl,
|
||||
node,
|
||||
iface,
|
||||
skel,
|
||||
true,
|
||||
NULL);
|
||||
}
|
||||
else if (global->type == impl->uri.protocol_dbus) {
|
||||
PinosProtocolDBus *proto = global->object;
|
||||
PinosProtocolDBusServer *server;
|
||||
PinosDaemon1 *iface;
|
||||
|
||||
iface = pinos_daemon1_skeleton_new ();
|
||||
g_signal_connect (iface, "handle-create-node", (GCallback) handle_create_node, proto);
|
||||
g_signal_connect (iface, "handle-create-client-node", (GCallback) handle_create_client_node, proto);
|
||||
|
||||
skel = pinos_object_skeleton_new (PINOS_DBUS_OBJECT_SERVER);
|
||||
|
||||
pinos_daemon1_set_user_name (iface, g_get_user_name ());
|
||||
pinos_daemon1_set_host_name (iface, g_get_host_name ());
|
||||
pinos_daemon1_set_version (iface, PACKAGE_VERSION);
|
||||
pinos_daemon1_set_name (iface, PACKAGE_NAME);
|
||||
pinos_daemon1_set_cookie (iface, g_random_int());
|
||||
pinos_daemon1_set_properties (iface, proto->properties ?
|
||||
pinos_properties_to_variant (proto->properties):
|
||||
NULL);
|
||||
pinos_object_skeleton_set_daemon1 (skel, iface);
|
||||
|
||||
server = object_new (sizeof (PinosProtocolDBusServer),
|
||||
impl,
|
||||
proto,
|
||||
iface,
|
||||
skel,
|
||||
true,
|
||||
NULL);
|
||||
server->id = g_bus_own_name (G_BUS_TYPE_SESSION,
|
||||
PINOS_DBUS_SERVICE,
|
||||
G_BUS_NAME_OWNER_FLAGS_REPLACE,
|
||||
bus_acquired_handler,
|
||||
name_acquired_handler,
|
||||
name_lost_handler,
|
||||
proto,
|
||||
NULL);
|
||||
} else if (global->type == this->core->registry.uri.link) {
|
||||
PinosLink1 *iface;
|
||||
PinosLink *link = global->object;
|
||||
PinosProtocolDBusObject *obj;
|
||||
|
||||
skel = pinos_object_skeleton_new (PINOS_DBUS_OBJECT_LINK);
|
||||
|
||||
iface = pinos_link1_skeleton_new ();
|
||||
|
||||
obj = link->output ? find_object (impl, link->output->node) : NULL;
|
||||
if (obj) {
|
||||
pinos_link1_set_output_node (iface, obj->object_path);
|
||||
pinos_link1_set_output_port (iface, link->output->port_id);
|
||||
} else {
|
||||
pinos_link1_set_output_node (iface, "/");
|
||||
pinos_link1_set_output_port (iface, SPA_ID_INVALID);
|
||||
}
|
||||
obj = link->input ? find_object (impl, link->input->node) : NULL;
|
||||
if (obj) {
|
||||
pinos_link1_set_input_node (iface, obj->object_path);
|
||||
pinos_link1_set_input_port (iface, link->input->port_id);
|
||||
} else {
|
||||
pinos_link1_set_output_node (iface, "/");
|
||||
pinos_link1_set_output_port (iface, SPA_ID_INVALID);
|
||||
}
|
||||
pinos_object_skeleton_set_link1 (skel, iface);
|
||||
|
||||
object_new (sizeof (PinosProtocolDBusObject),
|
||||
impl,
|
||||
link,
|
||||
iface,
|
||||
skel,
|
||||
true,
|
||||
NULL);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
on_global_removed (PinosListener *listener,
|
||||
PinosCore *core,
|
||||
PinosGlobal *global)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl = SPA_CONTAINER_OF (listener, PinosProtocolDBusImpl, global_removed);
|
||||
PinosProtocolDBusObject *object;
|
||||
|
||||
if ((object = find_object (impl, global->object)))
|
||||
object_destroy (object);
|
||||
}
|
||||
|
||||
static PinosProtocolDBus *
|
||||
pinos_protocol_dbus_new (PinosCore *core,
|
||||
PinosProperties *properties)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl;
|
||||
PinosProtocolDBus *this;
|
||||
|
||||
impl = calloc (1, sizeof (PinosProtocolDBusImpl));
|
||||
this = &impl->this;
|
||||
pinos_log_debug ("protocol-dbus %p: new", impl);
|
||||
|
||||
this->core = core;
|
||||
this->properties = properties;
|
||||
|
||||
spa_list_init (&impl->client_list);
|
||||
spa_list_init (&impl->object_list);
|
||||
|
||||
pinos_signal_init (&this->destroy_signal);
|
||||
|
||||
pinos_signal_add (&core->global_added, &impl->global_added, on_global_added);
|
||||
pinos_signal_add (&core->global_removed, &impl->global_removed, on_global_removed);
|
||||
pinos_signal_add (&core->node_state_changed, &impl->node_state_changed, on_node_state_changed);
|
||||
|
||||
impl->server_manager = g_dbus_object_manager_server_new (PINOS_DBUS_OBJECT_PREFIX);
|
||||
|
||||
impl->uri.protocol_dbus = spa_id_map_get_id (core->registry.map, PINOS_PROTOCOL_DBUS_URI);
|
||||
|
||||
this->global = pinos_core_add_global (core,
|
||||
impl->uri.protocol_dbus,
|
||||
this);
|
||||
return this;
|
||||
}
|
||||
|
||||
#if 0
|
||||
static void
|
||||
pinos_protocol_dbus_destroy (PinosProtocolDBus *proto)
|
||||
{
|
||||
PinosProtocolDBusImpl *impl = SPA_CONTAINER_OF (proto, PinosProtocolDBusImpl, this);
|
||||
PinosProtocolDBusObject *object, *tmp;
|
||||
|
||||
pinos_log_debug ("protocol-dbus %p: destroy", impl);
|
||||
|
||||
pinos_signal_emit (&proto->destroy_signal, proto);
|
||||
|
||||
pinos_global_destroy (proto->global);
|
||||
|
||||
spa_list_for_each_safe (object, tmp, &impl->object_list, link)
|
||||
object_destroy (object);
|
||||
|
||||
#if 0
|
||||
if (impl->id != 0)
|
||||
g_bus_unown_name (impl->id);
|
||||
#endif
|
||||
|
||||
pinos_signal_remove (&impl->global_added);
|
||||
pinos_signal_remove (&impl->global_removed);
|
||||
pinos_signal_remove (&impl->node_state_changed);
|
||||
|
||||
g_clear_object (&impl->server_manager);
|
||||
|
||||
free (impl);
|
||||
}
|
||||
#endif
|
||||
|
||||
G_MODULE_EXPORT bool
|
||||
pinos__module_init (PinosModule * module, const char * args)
|
||||
{
|
||||
pinos_protocol_dbus_new (module->core, NULL);
|
||||
return TRUE;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue