Imported Upstream version 1.26
[platform/upstream/connman.git] / gdbus / watch.c
index 2661928..0d0054c 100644 (file)
@@ -119,13 +119,7 @@ static struct filter_data *filter_data_find_match(DBusConnection *connection,
        return NULL;
 }
 
-static struct filter_data *filter_data_find(DBusConnection *connection,
-                                                       const char *name,
-                                                       const char *owner,
-                                                       const char *path,
-                                                       const char *interface,
-                                                       const char *member,
-                                                       const char *argument)
+static struct filter_data *filter_data_find(DBusConnection *connection)
 {
        GSList *current;
 
@@ -136,30 +130,6 @@ static struct filter_data *filter_data_find(DBusConnection *connection,
                if (connection != data->connection)
                        continue;
 
-               if (name && data->name &&
-                               g_str_equal(name, data->name) == FALSE)
-                       continue;
-
-               if (owner && data->owner &&
-                               g_str_equal(owner, data->owner) == FALSE)
-                       continue;
-
-               if (path && data->path &&
-                               g_str_equal(path, data->path) == FALSE)
-                       continue;
-
-               if (interface && data->interface &&
-                               g_str_equal(interface, data->interface) == FALSE)
-                       continue;
-
-               if (member && data->member &&
-                               g_str_equal(member, data->member) == FALSE)
-                       continue;
-
-               if (argument && data->argument &&
-                               g_str_equal(argument, data->argument) == FALSE)
-                       continue;
-
                return data;
        }
 
@@ -245,7 +215,7 @@ static struct filter_data *filter_data_get(DBusConnection *connection,
        struct filter_data *data;
        const char *name = NULL, *owner = NULL;
 
-       if (filter_data_find(connection, NULL, NULL, NULL, NULL, NULL, NULL) == NULL) {
+       if (filter_data_find(connection) == NULL) {
                if (!dbus_connection_add_filter(connection,
                                        message_filter, NULL, NULL)) {
                        error("dbus_connection_add_filter() failed");
@@ -270,8 +240,8 @@ proceed:
        data = g_new0(struct filter_data, 1);
 
        data->connection = dbus_connection_ref(connection);
-       data->name = name ? g_strdup(name) : NULL;
-       data->owner = owner ? g_strdup(owner) : NULL;
+       data->name = g_strdup(name);
+       data->owner = g_strdup(owner);
        data->path = g_strdup(path);
        data->interface = g_strdup(interface);
        data->member = g_strdup(member);
@@ -311,6 +281,11 @@ static void filter_data_free(struct filter_data *data)
 {
        GSList *l;
 
+       /* Remove filter if there are no listeners left for the connection */
+       if (filter_data_find(data->connection) == NULL)
+               dbus_connection_remove_filter(data->connection, message_filter,
+                                                                       NULL);
+
        for (l = data->callbacks; l != NULL; l = l->next)
                g_free(l->data);
 
@@ -387,11 +362,10 @@ static void service_data_free(struct service_data *data)
        callback->data = NULL;
 }
 
+/* Returns TRUE if data is freed */
 static gboolean filter_data_remove_callback(struct filter_data *data,
                                                struct filter_callback *cb)
 {
-       DBusConnection *connection;
-
        data->callbacks = g_slist_remove(data->callbacks, cb);
        data->processed = g_slist_remove(data->processed, cb);
 
@@ -410,22 +384,13 @@ static gboolean filter_data_remove_callback(struct filter_data *data,
        /* Don't remove the filter if other callbacks exist or data is lock
         * processing callbacks */
        if (data->callbacks || data->lock)
-               return TRUE;
+               return FALSE;
 
        if (data->registered && !remove_match(data))
                return FALSE;
 
-       connection = dbus_connection_ref(data->connection);
        listeners = g_slist_remove(listeners, data);
-
-       /* Remove filter if there are no listeners left for the connection */
-       if (filter_data_find(connection, NULL, NULL, NULL, NULL, NULL,
-                                                               NULL) == NULL)
-               dbus_connection_remove_filter(connection, message_filter,
-                                               NULL);
-
        filter_data_free(data);
-       dbus_connection_unref(connection);
 
        return TRUE;
 }
@@ -441,7 +406,9 @@ static DBusHandlerResult signal_filter(DBusConnection *connection,
 
                if (cb->signal_func && !cb->signal_func(connection, message,
                                                        cb->user_data)) {
-                       filter_data_remove_callback(data, cb);
+                       if (filter_data_remove_callback(data, cb))
+                               break;
+
                        continue;
                }
 
@@ -525,7 +492,9 @@ static DBusHandlerResult service_filter(DBusConnection *connection,
                /* Only auto remove if it is a bus name watch */
                if (data->argument[0] == ':' &&
                                (cb->conn_func == NULL || cb->disc_func == NULL)) {
-                       filter_data_remove_callback(data, cb);
+                       if (filter_data_remove_callback(data, cb))
+                               break;
+
                        continue;
                }
 
@@ -555,6 +524,8 @@ static DBusHandlerResult message_filter(DBusConnection *connection,
        dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg, DBUS_TYPE_INVALID);
 
        /* Sender is always the owner */
+       if (sender == NULL)
+               return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 
        for (current = listeners; current != NULL; current = current->next) {
                data = current->data;
@@ -594,6 +565,9 @@ static DBusHandlerResult message_filter(DBusConnection *connection,
                                                                current);
        }
 
+       if (delete_listener == NULL)
+               return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
        for (current = delete_listener; current != NULL;
                                        current = delete_listener->next) {
                GSList *l = current->data;
@@ -605,19 +579,13 @@ static DBusHandlerResult message_filter(DBusConnection *connection,
                        continue;
 
                remove_match(data);
-               listeners = g_slist_remove_link(listeners, l);
+               listeners = g_slist_delete_link(listeners, l);
 
                filter_data_free(data);
        }
 
        g_slist_free(delete_listener);
 
-       /* Remove filter if there are no listeners left for the connection */
-       if (filter_data_find(connection, NULL, NULL, NULL, NULL, NULL,
-                                                               NULL) == NULL)
-               dbus_connection_remove_filter(connection, message_filter,
-                                               NULL);
-
        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
 
@@ -625,12 +593,15 @@ static gboolean update_service(void *user_data)
 {
        struct service_data *data = user_data;
        struct filter_callback *cb = data->callback;
+       DBusConnection *conn;
+
+       conn = dbus_connection_ref(data->conn);
+       service_data_free(data);
 
-       update_name_cache(data->name, data->owner);
        if (cb->conn_func)
-               cb->conn_func(data->conn, cb->user_data);
+               cb->conn_func(conn, cb->user_data);
 
-       service_data_free(data);
+       dbus_connection_unref(conn);
 
        return FALSE;
 }
@@ -732,7 +703,8 @@ guint g_dbus_add_service_watch(DBusConnection *connection, const char *name,
        if (name == NULL)
                return 0;
 
-       data = filter_data_get(connection, service_filter, NULL, NULL,
+       data = filter_data_get(connection, service_filter,
+                               DBUS_SERVICE_DBUS, DBUS_PATH_DBUS,
                                DBUS_INTERFACE_DBUS, "NameOwnerChanged",
                                name);
        if (data == NULL)
@@ -784,6 +756,34 @@ guint g_dbus_add_signal_watch(DBusConnection *connection,
        return cb->id;
 }
 
+guint g_dbus_add_properties_watch(DBusConnection *connection,
+                               const char *sender, const char *path,
+                               const char *interface,
+                               GDBusSignalFunction function, void *user_data,
+                               GDBusDestroyFunction destroy)
+{
+       struct filter_data *data;
+       struct filter_callback *cb;
+
+       data = filter_data_get(connection, signal_filter, sender, path,
+                               DBUS_INTERFACE_PROPERTIES, "PropertiesChanged",
+                               interface);
+       if (data == NULL)
+               return 0;
+
+       cb = filter_data_add_callback(data, NULL, NULL, function, destroy,
+                                       user_data);
+       if (cb == NULL)
+               return 0;
+
+       if (data->name != NULL && data->name_watch == 0)
+               data->name_watch = g_dbus_add_service_watch(connection,
+                                                       data->name, NULL,
+                                                       NULL, NULL, NULL);
+
+       return cb->id;
+}
+
 gboolean g_dbus_remove_watch(DBusConnection *connection, guint id)
 {
        struct filter_data *data;
@@ -810,11 +810,8 @@ void g_dbus_remove_all_watches(DBusConnection *connection)
 {
        struct filter_data *data;
 
-       while ((data = filter_data_find(connection, NULL, NULL, NULL, NULL,
-                                       NULL, NULL))) {
+       while ((data = filter_data_find(connection))) {
                listeners = g_slist_remove(listeners, data);
                filter_data_call_and_free(data);
        }
-
-       dbus_connection_remove_filter(connection, message_filter, NULL);
 }