mixer: remove nodes we created

src/modules/module-mixer.c

@@ -42,6 +42,13 @@ struct impl {
 
 	void *hnd;
 	const struct spa_handle_factory *factory;
+
+	struct spa_list node_list;
+};
+
+struct node_data {
+	struct spa_list link;
+	struct pw_node *node;
 };
 
 static const struct spa_handle_factory *find_factory(struct impl *impl)
@@ -97,6 +104,7 @@ static struct pw_node *make_node(struct impl *impl)
 	struct pw_node *node;
 	const struct spa_support *support;
 	uint32_t n_support;
+	struct node_data *nd;
 
 	support = pw_core_get_support(impl->core, &n_support);
 
@@ -114,7 +122,12 @@ static struct pw_node *make_node(struct impl *impl)
 	spa_node = iface;
 
 	node = pw_spa_node_new(impl->core, NULL, pw_module_get_global(impl->module),
-			       "audiomixer", PW_SPA_NODE_FLAG_ACTIVATE, spa_node, handle, NULL, 0);
+			       "audiomixer", PW_SPA_NODE_FLAG_ACTIVATE, spa_node, handle, NULL,
+			       sizeof(struct node_data));
+
+	nd = pw_spa_node_get_user_data(node);
+	nd->node = node;
+	spa_list_append(&impl->node_list, &nd->link);
 
 	return node;
 
@@ -169,9 +182,13 @@ static bool on_global(void *data, struct pw_global *global)
 static void module_destroy(void *data)
 {
 	struct impl *impl = data;
+	struct node_data *nd, *t;
 
 	spa_hook_remove(&impl->module_listener);
 
+	spa_list_for_each_safe(nd, t, &impl->node_list, link)
+		pw_node_destroy(nd->node);
+
 	if (impl->properties)
 		pw_properties_free(impl->properties);
 
@@ -198,6 +215,8 @@ static bool module_init(struct pw_module *module, struct pw_properties *properti
 
 	impl->factory = find_factory(impl);
 
+	spa_list_init(&impl->node_list);
+
 	pw_core_for_each_global(core, on_global, impl);
 
 	pw_module_add_listener(module, &impl->module_listener, &module_events, impl);

src/modules/spa/spa-node.c

@@ -50,6 +50,8 @@ struct impl {
 	char *factory_name;
 
 	struct spa_hook node_listener;
+
+	void *user_data;
 };
 
 static void pw_spa_node_destroy(void *data)
@@ -130,6 +132,9 @@ pw_spa_node_new(struct pw_core *core,
 	impl->flags = flags;
 	impl->async_init = flags & PW_SPA_NODE_FLAG_ASYNC;
 
+	if (user_data_size > 0)
+                impl->user_data = SPA_MEMBER(impl, sizeof(struct impl), void);
+
 	pw_node_add_listener(this, &impl->node_listener, &node_events, impl);
 	pw_node_set_implementation(this, impl->node);
 
@@ -139,6 +144,12 @@ pw_spa_node_new(struct pw_core *core,
 	return this;
 }
 
+void *pw_spa_node_get_user_data(struct pw_node *node)
+{
+	struct impl *impl = node->user_data;
+	return impl->user_data;
+}
+
 static int
 setup_props(struct pw_core *core, struct spa_node *spa_node, struct pw_properties *pw_props)
 {

src/modules/spa/spa-node.h

@@ -57,6 +57,8 @@ pw_spa_node_load(struct pw_core *core,
 		 struct pw_properties *properties,
 		 size_t user_data_size);
 
+void *pw_spa_node_get_user_data(struct pw_node *node);
+
 #ifdef __cplusplus
 }
 #endif