static DBusMessage *try_acquire(DBusConnection *conn, DBusMessage *msg, void *data) { struct media_transport *transport = data; struct media_owner *owner; struct media_request *req; guint id; if (transport->owner != NULL) return btd_error_not_authorized(msg); if (transport->state >= TRANSPORT_STATE_REQUESTING) return btd_error_not_authorized(msg); if (transport->state != TRANSPORT_STATE_PENDING) return btd_error_not_available(msg); owner = media_owner_create(msg); id = transport->resume(transport, owner); if (id == 0) { media_owner_free(owner); return btd_error_not_authorized(msg); } req = media_request_create(msg, id); media_owner_add(owner, req); media_transport_set_owner(transport, owner); return NULL; }
static void media_transport_remove_owner(struct media_transport *transport) { struct media_owner *owner = transport->owner; DBG("Transport %s Owner %s", transport->path, owner->name); /* Reply if owner has a pending request */ if (owner->pending) media_request_reply(owner->pending, EIO); transport->owner = NULL; if (owner->watch) g_dbus_remove_watch(btd_get_dbus_connection(), owner->watch); media_owner_free(owner); if (state_in_use(transport->state)) transport->suspend(transport, NULL); }
static void media_transport_remove(struct media_transport *transport, struct media_owner *owner) { DBG("Transport %s Owner %s", transport->path, owner->name); media_transport_release(transport, owner->accesstype); /* Reply if owner has a pending request */ if (owner->pending) media_request_reply(owner->pending, transport->conn, EIO); transport->owners = g_slist_remove(transport->owners, owner); if (owner->watch) g_dbus_remove_watch(transport->conn, owner->watch); media_owner_free(owner); /* Suspend if there is no longer any owner */ if (transport->owners == NULL && transport->in_use) transport->suspend(transport, NULL); }
static DBusMessage *acquire(DBusConnection *conn, DBusMessage *msg, void *data) { struct media_transport *transport = data; struct media_owner *owner; struct media_request *req; const char *accesstype, *sender; guint id; if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &accesstype, DBUS_TYPE_INVALID)) return NULL; sender = dbus_message_get_sender(msg); owner = media_transport_find_owner(transport, sender); if (owner != NULL) return btd_error_not_authorized(msg); if (media_transport_acquire(transport, accesstype) == FALSE) return btd_error_not_authorized(msg); owner = media_owner_create(conn, msg, accesstype); id = transport->resume(transport, owner); if (id == 0) { media_transport_release(transport, accesstype); media_owner_free(owner); return btd_error_not_authorized(msg); } req = media_request_create(msg, id); media_owner_add(owner, req); media_transport_add(transport, owner); return NULL; }