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				https://gitlab.freedesktop.org/pipewire/pipewire.git
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	link: improve introspection
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					 8 changed files with 64 additions and 32 deletions
				
			
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			@ -292,7 +292,8 @@ static void core_marshal_info(void *object, struct pw_core_info *info)
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			    SPA_POD_TYPE_STRING, info->host_name,
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			    SPA_POD_TYPE_STRING, info->version,
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			    SPA_POD_TYPE_STRING, info->name,
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			    SPA_POD_TYPE_INT, info->cookie, SPA_POD_TYPE_INT, n_items, 0);
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			    SPA_POD_TYPE_INT, info->cookie,
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			    SPA_POD_TYPE_INT, n_items, 0);
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	for (i = 0; i < n_items; i++) {
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		spa_pod_builder_add(b,
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			@ -779,16 +780,28 @@ static void link_marshal_info(void *object, struct pw_link_info *info)
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	struct pw_resource *resource = object;
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	struct spa_pod_builder *b;
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	struct spa_pod_frame f;
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	uint32_t i, n_items;
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	b = pw_protocol_native_begin_resource(resource, PW_LINK_PROXY_EVENT_INFO);
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	spa_pod_builder_struct(b, &f,
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	n_items = info->props ? info->props->n_items : 0;
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	spa_pod_builder_add(b,
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			    SPA_POD_TYPE_STRUCT, &f,
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			    SPA_POD_TYPE_LONG, info->change_mask,
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			    SPA_POD_TYPE_INT, info->output_node_id,
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			    SPA_POD_TYPE_INT, info->output_port_id,
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			    SPA_POD_TYPE_INT, info->input_node_id,
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			    SPA_POD_TYPE_INT, info->input_port_id,
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			       SPA_POD_TYPE_POD, info->format);
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			    SPA_POD_TYPE_POD, info->format,
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			    SPA_POD_TYPE_INT, n_items, 0);
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	for (i = 0; i < n_items; i++) {
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		spa_pod_builder_add(b,
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				    SPA_POD_TYPE_STRING, info->props->items[i].key,
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				    SPA_POD_TYPE_STRING, info->props->items[i].value, 0);
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	}
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	spa_pod_builder_add(b, -SPA_POD_TYPE_STRUCT, &f, 0);
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	pw_protocol_native_end_resource(resource, b);
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}
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			@ -797,7 +810,9 @@ static bool link_demarshal_info(void *object, void *data, size_t size)
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{
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	struct pw_proxy *proxy = object;
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	struct spa_pod_iter it;
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	struct spa_dict props;
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	struct pw_link_info info = { 0, };
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	int i;
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	if (!spa_pod_iter_struct(&it, data, size) ||
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	    !spa_pod_iter_get(&it,
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			@ -806,9 +821,18 @@ static bool link_demarshal_info(void *object, void *data, size_t size)
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			      SPA_POD_TYPE_INT, &info.output_port_id,
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			      SPA_POD_TYPE_INT, &info.input_node_id,
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			      SPA_POD_TYPE_INT, &info.input_port_id,
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			      -SPA_POD_TYPE_OBJECT, &info.format, 0))
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			      -SPA_POD_TYPE_OBJECT, &info.format,
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			      SPA_POD_TYPE_INT, &props.n_items, 0))
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		return false;
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	info.props = &props;
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	props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
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	for (i = 0; i < props.n_items; i++) {
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		if (!spa_pod_iter_get(&it,
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				      SPA_POD_TYPE_STRING, &props.items[i].key,
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				      SPA_POD_TYPE_STRING, &props.items[i].value, 0))
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			return false;
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	}
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	pw_proxy_notify(proxy, struct pw_link_proxy_events, info, &info);
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	return true;
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}
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			@ -245,7 +245,7 @@ void pw_client_update_properties(struct pw_client *client, const struct spa_dict
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					  dict->items[i].key, dict->items[i].value);
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	}
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	client->info.change_mask |= 1 << 0;
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	client->info.change_mask |= PW_CLIENT_CHANGE_MASK_PROPS;
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	client->info.props = client->properties ? &client->properties->dict : NULL;
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	spa_hook_list_call(&client->listener_list, struct pw_client_events, info_changed, &client->info);
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			@ -127,29 +127,29 @@ struct pw_core_info *pw_core_info_update(struct pw_core_info *info,
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	}
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	info->change_mask = update->change_mask;
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	if (update->change_mask & (1 << 0)) {
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	if (update->change_mask & PW_CORE_CHANGE_MASK_USER_NAME) {
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		if (info->user_name)
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			free((void *) info->user_name);
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		info->user_name = update->user_name ? strdup(update->user_name) : NULL;
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	}
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	if (update->change_mask & (1 << 1)) {
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	if (update->change_mask & PW_CORE_CHANGE_MASK_HOST_NAME) {
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		if (info->host_name)
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			free((void *) info->host_name);
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		info->host_name = update->host_name ? strdup(update->host_name) : NULL;
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	}
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	if (update->change_mask & (1 << 2)) {
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	if (update->change_mask & PW_CORE_CHANGE_MASK_VERSION) {
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		if (info->version)
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			free((void *) info->version);
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		info->version = update->version ? strdup(update->version) : NULL;
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	}
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	if (update->change_mask & (1 << 3)) {
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	if (update->change_mask & PW_CORE_CHANGE_MASK_NAME) {
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		if (info->name)
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			free((void *) info->name);
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		info->name = update->name ? strdup(update->name) : NULL;
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	}
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	if (update->change_mask & (1 << 4))
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	if (update->change_mask & PW_CORE_CHANGE_MASK_COOKIE)
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		info->cookie = update->cookie;
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	if (update->change_mask & (1 << 5)) {
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	if (update->change_mask & PW_CORE_CHANGE_MASK_PROPS) {
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		if (info->props)
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			pw_spa_dict_destroy(info->props);
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		info->props = pw_spa_dict_copy(update->props);
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			@ -283,22 +283,22 @@ struct pw_module_info *pw_module_info_update(struct pw_module_info *info,
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	}
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	info->change_mask = update->change_mask;
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	if (update->change_mask & (1 << 0)) {
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	if (update->change_mask & PW_MODULE_CHANGE_MASK_NAME) {
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		if (info->name)
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			free((void *) info->name);
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		info->name = update->name ? strdup(update->name) : NULL;
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	}
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	if (update->change_mask & (1 << 1)) {
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	if (update->change_mask & PW_MODULE_CHANGE_MASK_FILENAME) {
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		if (info->filename)
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			free((void *) info->filename);
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		info->filename = update->filename ? strdup(update->filename) : NULL;
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	}
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	if (update->change_mask & (1 << 2)) {
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	if (update->change_mask & PW_MODULE_CHANGE_MASK_ARGS) {
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		if (info->args)
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			free((void *) info->args);
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		info->args = update->args ? strdup(update->args) : NULL;
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	}
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	if (update->change_mask & (1 << 3)) {
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	if (update->change_mask & PW_MODULE_CHANGE_MASK_PROPS) {
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		if (info->props)
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			pw_spa_dict_destroy(info->props);
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		info->props = pw_spa_dict_copy(update->props);
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			@ -333,7 +333,7 @@ struct pw_client_info *pw_client_info_update(struct pw_client_info *info,
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	}
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	info->change_mask = update->change_mask;
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	if (update->change_mask & (1 << 0)) {
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	if (update->change_mask & PW_CLIENT_CHANGE_MASK_PROPS) {
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		if (info->props)
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			pw_spa_dict_destroy(info->props);
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		info->props = pw_spa_dict_copy(update->props);
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			@ -361,15 +361,15 @@ struct pw_link_info *pw_link_info_update(struct pw_link_info *info,
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	}
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	info->change_mask = update->change_mask;
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	if (update->change_mask & (1 << 0))
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	if (update->change_mask & PW_LINK_CHANGE_MASK_OUTPUT) {
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		info->output_node_id = update->output_node_id;
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	if (update->change_mask & (1 << 1))
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		info->output_port_id = update->output_port_id;
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	if (update->change_mask & (1 << 2))
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	}
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	if (update->change_mask & PW_LINK_CHANGE_MASK_INPUT) {
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		info->input_node_id = update->input_node_id;
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	if (update->change_mask & (1 << 3))
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		info->input_port_id = update->input_port_id;
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	if (update->change_mask & (1 << 4)) {
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	}
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	if (update->change_mask & PW_LINK_CHANGE_MASK_FORMAT) {
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		if (info->format)
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			free(info->format);
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		info->format = spa_format_copy(update->format);
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			@ -100,6 +100,10 @@ void pw_core_info_free(struct pw_core_info *info);
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/** The module information. Extra information can be added in later versions \memberof pw_introspect */
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struct pw_module_info {
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#define PW_MODULE_CHANGE_MASK_NAME	(1 << 0)
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#define PW_MODULE_CHANGE_MASK_FILENAME	(1 << 1)
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#define PW_MODULE_CHANGE_MASK_ARGS	(1 << 2)
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#define PW_MODULE_CHANGE_MASK_PROPS	(1 << 3)
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	uint64_t change_mask;	/**< bitfield of changed fields since last call */
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	const char *name;	/**< name of the module */
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	const char *filename;	/**< filename of the module */
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			@ -1120,6 +1120,7 @@ struct pw_link *pw_link_new(struct pw_core *core,
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	this->info.input_node_id = input_node->global->id;
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	this->info.input_port_id = input->port_id;
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	this->info.format = NULL;
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	this->info.props = this->properties ? &this->properties->dict : NULL;
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	spa_graph_port_init(&this->rt.out_port,
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			    PW_DIRECTION_OUTPUT,
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			@ -315,6 +315,7 @@ struct pw_node *pw_node_new(struct pw_core *core,
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	spa_hook_list_init(&this->listener_list);
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	this->info.state = PW_NODE_STATE_CREATING;
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	this->info.props = &this->properties->dict;
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	spa_list_init(&this->input_ports);
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	pw_map_init(&this->input_port_map, 64, 64);
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			@ -268,13 +268,13 @@ bool pw_port_add(struct pw_port *port, struct pw_node *node)
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		spa_list_insert(&node->input_ports, &port->link);
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		pw_map_insert_at(&node->input_port_map, port_id, port);
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		node->info.n_input_ports++;
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		node->info.change_mask |= 1 << 1;
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		node->info.change_mask |= PW_NODE_CHANGE_MASK_INPUT_PORTS;
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	}
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	else {
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		spa_list_insert(&node->output_ports, &port->link);
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		pw_map_insert_at(&node->output_port_map, port_id, port);
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		node->info.n_output_ports++;
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		node->info.change_mask |= 1 << 3;
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		node->info.change_mask |= PW_NODE_CHANGE_MASK_OUTPUT_PORTS;
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	}
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	spa_node_port_set_io(node->node, port->direction, port_id, &port->io);
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			@ -56,10 +56,12 @@ static void print_properties(struct spa_dict *props, char mark)
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{
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	struct spa_dict_item *item;
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	if (props == NULL)
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		return;
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	printf("%c\tproperties:\n", mark);
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	if (props == NULL || props->n_items == 0) {
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		printf("\t\tnone\n");
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		return;
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	}
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	spa_dict_for_each(item, props) {
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		printf("%c\t\t%s = \"%s\"\n", mark, item->key, item->value);
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	}
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			@ -238,7 +240,7 @@ static void link_event_info(void *object, struct pw_link_info *info)
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		if (info->format)
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			spa_debug_format(info->format);
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		else
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			printf("\t  none\n");
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			printf("\t\tnone\n");
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		print_properties(info->props, MARK_CHANGE(3));
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	}
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}
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