The metadata is used to store key/type/value pairs per object id. More...

Data Structures
struct	pw_impl_metadata_events
	Metadata events, listen to them with pw_impl_metadata_add_listener. More...

Functions
struct pw_impl_metadata *	pw_context_create_metadata (struct pw_context context, const char name, struct pw_properties *properties, size_t user_data_size)

const struct pw_properties *	pw_impl_metadata_get_properties (struct pw_impl_metadata *metadata)
	Get the metadata properties. More...

int	pw_impl_metadata_register (struct pw_impl_metadata metadata, struct pw_properties properties)

void	pw_impl_metadata_destroy (struct pw_impl_metadata *metadata)

void *	pw_impl_metadata_get_user_data (struct pw_impl_metadata *metadata)

int	pw_impl_metadata_set_implementation (struct pw_impl_metadata metadata, struct pw_metadata impl)

struct pw_metadata *	pw_impl_metadata_get_implementation (struct pw_impl_metadata *metadata)

struct pw_global *	pw_impl_metadata_get_global (struct pw_impl_metadata *metadata)
	Get the global of this metadata. More...

void	pw_impl_metadata_add_listener (struct pw_impl_metadata metadata, struct spa_hook listener, const struct pw_impl_metadata_events events, void data)
	Add an event listener. More...

int	pw_impl_metadata_set_property (struct pw_impl_metadata metadata, uint32_t subject, const char key, const char type, const char value)
	Set a property. More...

int	pw_impl_metadata_set_propertyf (struct pw_impl_metadata metadata, uint32_t subject, const char key, const char type, const char fmt,...) 1(5

Detailed Description

The metadata is used to store key/type/value pairs per object id.

Function Documentation

◆ pw_context_create_metadata()

struct pw_impl_metadata* pw_context_create_metadata	(	struct pw_context *	context,
		const char *	name,
		struct pw_properties *	properties,
		size_t	user_data_size
	)

References name, pw_impl_metadata_set_implementation(), pw_properties_new(), pw_properties_set(), spa_hook_list_init(), and impl::this.

Referenced by pw_settings_init(), and sm_media_session_export_metadata().

◆ pw_impl_metadata_add_listener()

void pw_impl_metadata_add_listener	(	struct pw_impl_metadata *	metadata,
		struct spa_hook *	listener,
		const struct pw_impl_metadata_events *	events,
		void *	data
	)

Add an event listener.

References spa_hook_list_append().

◆ pw_impl_metadata_destroy()

void pw_impl_metadata_destroy ( struct pw_impl_metadata * metadata )

References NAME, pw_global_destroy(), pw_log_debug, SPA_CONTAINER_OF, spa_hook_remove(), and spa_list_remove().

Referenced by pw_context_destroy(), and pw_settings_clean().

◆ pw_impl_metadata_get_global()

struct pw_global* pw_impl_metadata_get_global ( struct pw_impl_metadata * metadata )

Get the global of this metadata.

◆ pw_impl_metadata_get_implementation()

struct pw_metadata* pw_impl_metadata_get_implementation ( struct pw_impl_metadata * metadata )

References metadata::metadata.

Referenced by sm_media_session_export_metadata().

◆ pw_impl_metadata_get_properties()

const struct pw_properties* pw_impl_metadata_get_properties ( struct pw_impl_metadata * metadata )

Get the metadata properties.

◆ pw_impl_metadata_get_user_data()

void* pw_impl_metadata_get_user_data ( struct pw_impl_metadata * metadata )

◆ pw_impl_metadata_register()

int pw_impl_metadata_register	(	struct pw_impl_metadata *	metadata,
		struct pw_properties *	properties
	)

References pw_global_new(), and PW_KEY_MODULE_ID.

◆ pw_impl_metadata_set_implementation()

int pw_impl_metadata_set_implementation	(	struct pw_impl_metadata *	metadata,
		struct pw_metadata *	impl
	)

References impl::def, metadata::iface, metadata::metadata, SPA_CONTAINER_OF, and spa_hook_remove().

Referenced by pw_context_create_metadata().

◆ pw_impl_metadata_set_property()

int pw_impl_metadata_set_property	(	struct pw_impl_metadata *	metadata,
		uint32_t	subject,
		const char *	key,
		const char *	type,
		const char *	value
	)

Set a property.