modules: handle factory destroy

Listen for factory destroy and clean up the module.

See #565

src/modules/module-client-device.c

@@ -56,7 +56,8 @@ struct pw_proxy *pw_core_spa_device_export(struct pw_core *core,
 struct pw_protocol *pw_protocol_native_ext_client_device_init(struct pw_context *context);
 
 struct factory_data {
-	struct pw_impl_factory *this;
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
@@ -72,7 +73,7 @@ static void *create_object(void *_data,
 			   uint32_t new_id)
 {
 	struct factory_data *data = _data;
-	struct pw_impl_factory *this = data->this;
+	struct pw_impl_factory *factory = data->factory;
 	void *result;
 	struct pw_resource *device_resource;
 	struct pw_impl_client *client;
@@ -98,7 +99,7 @@ static void *create_object(void *_data,
 	}
 
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_global_get_id(pw_impl_factory_get_global(this)));
+			pw_global_get_id(pw_impl_factory_get_global(factory)));
 	pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
 			pw_global_get_id(pw_impl_client_get_global(client)));
 
@@ -134,22 +135,35 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
-
 	spa_hook_remove(&d->module_listener);
-
 	spa_list_remove(&d->export_spadevice.link);
-
+	d->module = NULL;
-	pw_impl_factory_destroy(d->this);
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -190,7 +204,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_log_debug("module %p: new", module);
@@ -206,12 +220,13 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 
 	pw_protocol_native_ext_client_device_init(context);
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
 
 	return 0;
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/module-client-node.c

@@ -59,7 +59,8 @@ struct pw_protocol *pw_protocol_native_ext_client_node_init(struct pw_context *c
 struct pw_protocol *pw_protocol_native_ext_client_node0_init(struct pw_context *context);
 
 struct factory_data {
-	struct pw_impl_factory *this;
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
@@ -121,23 +122,38 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
 
 	spa_hook_remove(&d->module_listener);
-
 	spa_list_remove(&d->export_node.link);
 	spa_list_remove(&d->export_spanode.link);
 
-	pw_impl_factory_destroy(d->this);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -177,7 +193,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_log_debug("module %p: new", module);
@@ -199,6 +215,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 	pw_protocol_native_ext_client_node_init(context);
 	pw_protocol_native_ext_client_node0_init(context);
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
@@ -207,6 +224,6 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 error_remove:
 	spa_list_remove(&data->export_node.link);
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/module-link-factory.c

@@ -56,14 +56,16 @@ static const struct spa_dict_item module_props[] = {
 };
 
 struct factory_data {
-	struct pw_impl_module *module;
 	struct pw_context *context;
-	struct pw_impl_factory *this;
+
+	struct pw_impl_module *module;
+	struct spa_hook module_listener;
+
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 
 	struct spa_list link_list;
 
-	struct spa_hook module_listener;
-
 	struct pw_work_queue *work;
 };
 
@@ -407,7 +409,7 @@ static void *create_object(void *_data,
 	linger = pw_properties_get_bool(properties, PW_KEY_OBJECT_LINGER, false);
 
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_impl_factory_get_info(d->this)->id);
+			pw_impl_factory_get_info(d->factory)->id);
 
 	client = resource ? pw_resource_get_client(resource) : NULL;
 	if (client && !linger)
@@ -467,24 +469,40 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
-static void module_destroy(void *data)
+static void factory_destroy(void *data)
 {
 	struct factory_data *d = data;
 	struct link_data *ld, *t;
 
-	spa_hook_remove(&d->module_listener);
+	spa_hook_remove(&d->factory_listener);
 
 	spa_list_for_each_safe(ld, t, &d->link_list, l)
 		pw_impl_link_destroy(ld->link);
 
-	pw_impl_factory_destroy(d->this);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
+static void module_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->module_listener);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -525,7 +543,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 	data->context = context;
 	data->work = pw_context_get_work_queue(context);
@@ -540,6 +558,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 
 	pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	return 0;

src/modules/module-session-manager/client-endpoint/client-endpoint.c

@@ -38,9 +38,11 @@
 #define NAME "client-endpoint"
 
 struct factory_data {
-	struct pw_impl_factory *factory;
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
+
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 };
 
 static struct endpoint_stream *find_stream(struct client_endpoint *this, uint32_t id)
@@ -219,12 +221,27 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
-
 	spa_hook_remove(&d->module_listener);
-	pw_impl_factory_destroy(d->factory);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
@@ -271,6 +288,7 @@ int client_endpoint_factory_init(struct pw_impl_module *module)
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 

src/modules/module-session-manager/client-session/client-session.c

@@ -38,9 +38,11 @@
 #define NAME "client-session"
 
 struct factory_data {
-	struct pw_impl_factory *factory;
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
+
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 };
 
 static struct endpoint_link *find_link(struct client_session *this, uint32_t id)
@@ -218,12 +220,27 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
-
 	spa_hook_remove(&d->module_listener);
-	pw_impl_factory_destroy(d->factory);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
@@ -270,6 +287,7 @@ int client_session_factory_init(struct pw_impl_module *module)
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 

src/modules/module-session-manager/endpoint-link.c

@@ -78,7 +78,8 @@ struct resource_data
 
 struct factory_data
 {
-	struct pw_impl_factory *this;
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
 
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
@@ -472,7 +473,7 @@ static void *create_object(void *data,
 	pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
 			pw_impl_client_get_info(client)->id);
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_impl_factory_get_info(d->this)->id);
+			pw_impl_factory_get_info(d->factory)->id);
 
 	result = link_new(pw_impl_client_get_context(client), impl_resource, properties);
 	if (result == NULL) {
@@ -502,20 +503,37 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
 
 	spa_hook_remove(&d->module_listener);
 	spa_list_remove(&d->export.link);
-	pw_impl_factory_destroy(d->this);
+	d->module = NULL;
+
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -552,7 +570,7 @@ int endpoint_link_factory_init(struct pw_impl_module *module)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
@@ -562,10 +580,11 @@ int endpoint_link_factory_init(struct pw_impl_module *module)
 	if ((res = pw_context_register_export_type(context, &data->export)) < 0)
 		goto error;
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	return 0;
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/module-session-manager/endpoint-stream.c

@@ -78,11 +78,12 @@ struct resource_data
 
 struct factory_data
 {
-	struct pw_impl_factory *this;
-
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
 
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
 	struct pw_export_type export;
 };
 
@@ -463,7 +464,7 @@ static void *create_object(void *data,
 	pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
 			pw_impl_client_get_info(client)->id);
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_impl_factory_get_info(d->this)->id);
+			pw_impl_factory_get_info(d->factory)->id);
 
 	result = stream_new(pw_impl_client_get_context(client), impl_resource, properties);
 	if (result == NULL) {
@@ -493,20 +494,37 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
 
 	spa_hook_remove(&d->module_listener);
 	spa_list_remove(&d->export.link);
-	pw_impl_factory_destroy(d->this);
+	d->module = NULL;
+
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -543,7 +561,7 @@ int endpoint_stream_factory_init(struct pw_impl_module *module)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
@@ -553,10 +571,11 @@ int endpoint_stream_factory_init(struct pw_impl_module *module)
 	if ((res = pw_context_register_export_type(context, &data->export)) < 0)
 		goto error;
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	return 0;
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/module-session-manager/endpoint.c

@@ -78,11 +78,12 @@ struct resource_data
 
 struct factory_data
 {
-	struct pw_impl_factory *this;
-
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
 
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
 	struct pw_export_type export;
 };
 
@@ -472,7 +473,7 @@ static void *create_object(void *data,
 	pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
 			pw_impl_client_get_info(client)->id);
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_impl_factory_get_info(d->this)->id);
+			pw_impl_factory_get_info(d->factory)->id);
 
 	result = endpoint_new(pw_impl_client_get_context(client), impl_resource, properties);
 	if (result == NULL) {
@@ -502,20 +503,37 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
 
 	spa_hook_remove(&d->module_listener);
 	spa_list_remove(&d->export.link);
-	pw_impl_factory_destroy(d->this);
+
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -552,7 +570,7 @@ int endpoint_factory_init(struct pw_impl_module *module)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
@@ -562,10 +580,11 @@ int endpoint_factory_init(struct pw_impl_module *module)
 	if ((res = pw_context_register_export_type(context, &data->export)) < 0)
 		goto error;
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	return 0;
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/module-session-manager/session.c

@@ -78,11 +78,12 @@ struct resource_data
 
 struct factory_data
 {
-	struct pw_impl_factory *this;
-
 	struct pw_impl_module *module;
 	struct spa_hook module_listener;
 
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
 	struct pw_export_type export;
 };
 
@@ -461,7 +462,7 @@ static void *create_object(void *data,
 	pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
 			pw_impl_client_get_info(client)->id);
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_impl_factory_get_info(d->this)->id);
+			pw_impl_factory_get_info(d->factory)->id);
 
 	result = session_new(pw_impl_client_get_context(client), impl_resource, properties);
 	if (result == NULL) {
@@ -491,20 +492,36 @@ static const struct pw_impl_factory_implementation impl_factory = {
 	.create_object = create_object,
 };
 
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->factory_listener);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
 static void module_destroy(void *data)
 {
 	struct factory_data *d = data;
 
 	spa_hook_remove(&d->module_listener);
 	spa_list_remove(&d->export.link);
-	pw_impl_factory_destroy(d->this);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -541,7 +558,7 @@ int session_factory_init(struct pw_impl_module *module)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 
 	pw_impl_factory_set_implementation(factory, &impl_factory, data);
@@ -551,10 +568,11 @@ int session_factory_init(struct pw_impl_module *module)
 	if ((res = pw_context_register_export_type(context, &data->export)) < 0)
 		goto error;
 
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
 	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
 
 	return 0;
 error:
-	pw_impl_factory_destroy(data->this);
+	pw_impl_factory_destroy(data->factory);
 	return res;
 }

src/modules/spa/module-device-factory.c

@@ -51,12 +51,13 @@ static const struct spa_dict_item module_props[] = {
 
 struct factory_data {
 	struct pw_context *context;
-	struct pw_impl_module *module;
-	struct pw_impl_factory *this;
 
-	struct spa_hook factory_listener;
+	struct pw_impl_module *module;
 	struct spa_hook module_listener;
 
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
 	struct spa_list device_list;
 };
 
@@ -120,7 +121,7 @@ static void *create_object(void *_data,
 		goto error_properties;
 
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_global_get_id(pw_impl_factory_get_global(data->this)));
+			pw_global_get_id(pw_impl_factory_get_global(data->factory)));
 
 	client = resource ? pw_resource_get_client(resource) : NULL;
 
@@ -190,16 +191,19 @@ static const struct pw_impl_factory_implementation factory_impl = {
 	.create_object = create_object,
 };
 
-static void factory_destroy(void *_data)
+static void factory_destroy(void *data)
 {
-	struct factory_data *data = _data;
+	struct factory_data *d = data;
 	struct device_data *nd;
 
-	spa_hook_remove(&data->factory_listener);
+	spa_hook_remove(&d->factory_listener);
-	spa_hook_remove(&data->module_listener);
 
-	spa_list_consume(nd, &data->device_list, link)
+	spa_list_consume(nd, &d->device_list, link)
 		pw_impl_device_destroy(nd->device);
+
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
 }
 
 static const struct pw_impl_factory_events factory_events = {
@@ -207,17 +211,21 @@ static const struct pw_impl_factory_events factory_events = {
 	.destroy = factory_destroy,
 };
 
-static void module_destroy(void *_data)
+static void module_destroy(void *data)
 {
-	struct factory_data *data = _data;
+	struct factory_data *d = data;
-	pw_impl_factory_destroy(data->this);
+
+	spa_hook_remove(&d->module_listener);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -256,7 +264,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->module = module;
 	data->context = context;
 	spa_list_init(&data->device_list);

src/modules/spa/module-node-factory.c

@@ -51,12 +51,13 @@ static const struct spa_dict_item module_props[] = {
 
 struct factory_data {
 	struct pw_context *context;
-	struct pw_impl_factory *this;
-	struct pw_impl_module *module;
 
-	struct spa_hook factory_listener;
+	struct pw_impl_module *module;
 	struct spa_hook module_listener;
 
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
 	struct spa_list node_list;
 };
 
@@ -121,7 +122,7 @@ static void *create_object(void *_data,
 		goto error_properties;
 
 	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
-			pw_global_get_id(pw_impl_factory_get_global(data->this)));
+			pw_global_get_id(pw_impl_factory_get_global(data->factory)));
 
 	linger = pw_properties_get_bool(properties, PW_KEY_OBJECT_LINGER, false);
 
@@ -187,15 +188,17 @@ static const struct pw_impl_factory_implementation factory_impl = {
 	.create_object = create_object,
 };
 
-static void factory_destroy(void *_data)
+static void factory_destroy(void *data)
 {
-	struct factory_data *data = _data;
+	struct factory_data *d = data;
 	struct node_data *nd;
 
-	spa_hook_remove(&data->factory_listener);
+	spa_hook_remove(&d->factory_listener);
-	spa_list_consume(nd, &data->node_list, link)
+	spa_list_consume(nd, &d->node_list, link)
 		pw_impl_node_destroy(nd->node);
-	data->this = NULL;
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
 }
 
 static const struct pw_impl_factory_events factory_events = {
@@ -203,19 +206,20 @@ static const struct pw_impl_factory_events factory_events = {
 	.destroy = factory_destroy,
 };
 
-static void module_destroy(void *_data)
+static void module_destroy(void *data)
 {
-	struct factory_data *data = _data;
+	struct factory_data *d = data;
-	spa_hook_remove(&data->module_listener);
+	spa_hook_remove(&d->module_listener);
-	if (data->this)
+	d->module = NULL;
-		pw_impl_factory_destroy(data->this);
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
 }
 
 static void module_registered(void *data)
 {
 	struct factory_data *d = data;
 	struct pw_impl_module *module = d->module;
-	struct pw_impl_factory *factory = d->this;
+	struct pw_impl_factory *factory = d->factory;
 	struct spa_dict_item items[1];
 	char id[16];
 	int res;
@@ -254,7 +258,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
 		return -errno;
 
 	data = pw_impl_factory_get_user_data(factory);
-	data->this = factory;
+	data->factory = factory;
 	data->context = context;
 	data->module = module;
 	spa_list_init(&data->node_list);

src/pipewire/impl-module.c

@@ -320,7 +320,7 @@ void pw_impl_module_destroy(struct pw_impl_module *module)
 {
 	struct impl *impl = SPA_CONTAINER_OF(module, struct impl, this);
 
-	pw_log_debug("%p: destroy", module);
+	pw_log_debug("%p: destroy %s", module, module->info.name);
 	pw_impl_module_emit_destroy(module);
 
 	spa_list_remove(&module->link);