Access for nodeclass variable specific attributes. More...

Functions
int	ua_variable_set_datatype (ua_node_t node, struct ua_nodeid *datatype)
	Set the datatype attribute of a variable node. More...

int	ua_variable_set_builtindatatype (ua_node_t node, enum ua_variant_type type)
	Set the datatype attribute of a variable node to a builtin variant type. More...

int	ua_variable_get_datatype (ua_node_t node, struct ua_nodeid *datatype)
	Get the datatype attribute of a variable node. More...

int	ua_variable_set_access_level (ua_node_t node, uint8_t accesslevel)
	Set the accesslevel attribute of a variable node. More...

uint8_t	ua_variable_get_access_level (ua_node_t node)
	Get the accesslevel attribute of a variable node. More...

int	ua_variable_set_user_access_level (ua_node_t node, uint8_t accesslevel)

uint8_t	ua_variable_get_user_access_level (ua_node_t node)

int	ua_variable_set_historizing (ua_node_t node, bool historizing)
	Set the historizing attribute of a variable node. More...

bool	ua_variable_get_historizing (ua_node_t node)
	Get the historizing attribute of a variable node. More...

int	ua_variable_set_valuerank (ua_node_t node, int32_t valuerank)
	Set the valuerank attribute of a variable node. More...

int32_t	ua_variable_get_valuerank (ua_node_t node)
	Get the valuerank attribute of a variable node. More...

int	ua_variable_set_arraydimensions (ua_node_t node, int32_t num_dimensions, uint32_t *dimensions)

int	ua_variable_get_arraydimensions (ua_node_t node, int32_t num_dimensions, uint32_t dimensions)

int	ua_variable_set_minimum_sampling_interval (ua_node_t node, uint32_t minimum_sampling_interval)
	Set the minimum samplinginterval attribute of a variable node. More...

uint32_t	ua_variable_get_minimum_sampling_interval (ua_node_t node)
	Get the minimum samplinginterval attribute of a variable node. More...

double	ua_variable_get_minimum_sampling_interval_dbl (ua_node_t node)
	Get the minimum samplinginterval attribute of a variable node as double. More...

int	ua_variable_set_store_index (ua_node_t node, uint8_t storeindex)
	Set the store index of a variable node. More...

int	ua_variable_get_store_index (ua_node_t node, uint8_t *storeindex)
	Get the store index of a variable node. More...

int	ua_variable_set_value_index (ua_node_t node, unsigned int valueindex)
	Set the valueindex of a variable node. More...

int	ua_variable_get_value_index (ua_node_t node, unsigned int *valueindex)
	Get the valueindex of a variable node. More...

int	ua_variable_set_attributes (ua_node_t node, struct ua_nodeid *datatype_id, int32_t valuerank, uint8_t access_level, bool historizing)
	Set the mandatory attributes of a variable node. More...

int	ua_variable_copy (ua_node_t dst, ua_node_t src)
	Copy the attributes from the variable node `src` to `dst`. More...

int	ua_variable_get_access_level_store_value_index (ua_node_t node, uint8_t accesslevel, uint8_t storeindex, unsigned int *valueindex)
	Combines the functionality of ua_variable_get_access_level, ua_variable_get_store_index and ua_variable_get_value_index. More...

Detailed Description

Access for nodeclass variable specific attributes.

Function Documentation

int ua_variable_copy	(	ua_node_t	dst,
		ua_node_t	src
	)

Copy the attributes from the variable node src to dst.

If the value is readonly the valueindex and storeindex are copied, so the src and dst nodes point to the same value. The arraydimension are also not copied as these are not completely implemented yet.

uint8_t ua_variable_get_access_level ( ua_node_t node )

Get the accesslevel attribute of a variable node.

Parameters

node	Handle of node to get the accesslevel.

Returns: Accesslevel of the node.

See also: ua_accesslevel

int ua_variable_get_access_level_store_value_index	(	ua_node_t	node,
		uint8_t *	accesslevel,
		uint8_t *	storeindex,
		unsigned int *	valueindex
	)

Combines the functionality of ua_variable_get_access_level, ua_variable_get_store_index and ua_variable_get_value_index.

This information is often needed at once and it is much more efficient to get it at once, so this function is a pure performance optimization.

Parameters

node	Node of class variable to get the attributes.
accesslevel	Pointer to value where the access level is written to.
storeindex	Pointer to value where the store index is written to.
valueindex	Pointer to value where the value index is written to.

Returns: Zero on success or errorcode on failure.

int ua_variable_get_datatype	(	ua_node_t	node,
		struct ua_nodeid *	datatype
	)

Get the datatype attribute of a variable node.

Parameters

node	Handle of node to get datatype.
datatype	Nodeid representing the datatype of the node.

Returns: Zero on success or errorcode on failure

bool ua_variable_get_historizing ( ua_node_t node )

Get the historizing attribute of a variable node.

Parameters

node	Handle of node to get the historizing attribute.

Returns: True if historizing is enabled for the node, false otherwise.

uint32_t ua_variable_get_minimum_sampling_interval ( ua_node_t node )

Get the minimum samplinginterval attribute of a variable node.

Parameters

node	Handle of node to get the the attribute.

Returns: Minimum samplinginterval

double ua_variable_get_minimum_sampling_interval_dbl ( ua_node_t node )

Get the minimum samplinginterval attribute of a variable node as double.

Parameters

node	Handle of node to get the the attribute.

Returns: Minimum samplinginterval

int ua_variable_get_store_index	(	ua_node_t	node,
		uint8_t *	storeindex
	)

Get the store index of a variable node.

Parameters

node	Handle of node to get store index.
storeindex	Pointer to value where the store index is written to.

Returns: Zero on success or errorcode on failure

int ua_variable_get_value_index	(	ua_node_t	node,
		unsigned int *	valueindex
	)

Get the valueindex of a variable node.

Parameters

node	Handle of node to get valueindex.
valueindex	Pointer to value where the valueindex is written to.

Returns: Zero on success or errorcode on failure

int32_t ua_variable_get_valuerank ( ua_node_t node )

Get the valuerank attribute of a variable node.

Parameters

node	Handle of node to get the valuerank

Returns: Valuerank of the node.

See also: ua_valuerank

int ua_variable_set_access_level	(	ua_node_t	node,
		uint8_t	accesslevel
	)

Set the accesslevel attribute of a variable node.

Parameters

node	Handle of node to set accesslevel.
accesslevel	Accesslevel to set. Multiple accesslevels can be combined with the bitwise OR operator.

Returns: Zero on success or errorcode on failure

See also: ua_accesslevel

int ua_variable_set_attributes	(	ua_node_t	node,
		struct ua_nodeid *	datatype_id,
		int32_t	valuerank,
		uint8_t	access_level,
		bool	historizing
	)

Set the mandatory attributes of a variable node.

Parameters

node	Node of class variable to set the attributes.
datatype_id	Nodeid of the datatype of the variable node.
valuerank	Valuerank of the variable node.
access_level	Accesslevel of the variable node.
historizing	True if the variable supports history access.

Returns: 0 on success or errorcode on failure.

int ua_variable_set_builtindatatype	(	ua_node_t	node,
		enum ua_variant_type	type
	)

Set the datatype attribute of a variable node to a builtin variant type.

Parameters

node	Handle of node to set the datatype.
type	Variant type to set as datatype.

Returns: Zero on success or errorcode on failure

int ua_variable_set_datatype	(	ua_node_t	node,
		struct ua_nodeid *	datatype
	)

Set the datatype attribute of a variable node.

Parameters

node	Handle of node to set the datatype.
datatype	Nodeid to set as datatype. The node must exist in the server addressspace.

Returns: Zero on success or errorcode on failure

int ua_variable_set_historizing	(	ua_node_t	node,
		bool	historizing
	)

Set the historizing attribute of a variable node.

Parameters

node	Handle of node to set historizing attribute.
historizing	True if historizing is enabled for the node, false otherwise.

Returns: Zero on success or errorcode on failure

int ua_variable_set_minimum_sampling_interval	(	ua_node_t	node,
		uint32_t	minimum_sampling_interval
	)

Set the minimum samplinginterval attribute of a variable node.

Parameters

node	Handle of node to set the the attribute.
minimum_sampling_interval	Minimum samplinginterval to set.

Returns: Zero on success or errorcode on failure

int ua_variable_set_store_index	(	ua_node_t	node,
		uint8_t	storeindex
	)

Set the store index of a variable node.

The storeindex may only be set values for which a store was registered with ua_globalstore_register_store.

Parameters

node	Handle of node to set store index.
storeindex	Store index to set.

Returns: Zero on success or errorcode on failure

int ua_variable_set_value_index	(	ua_node_t	node,
		unsigned int	valueindex
	)

Set the valueindex of a variable node.

The valueindex may be used in combination with a valuestore or freely by the user for an arbitrary index

Parameters

node	Handle of node to set valueindex.
valueindex	Value for the valueindex.

Returns: Zero on success or errorcode on failure

int ua_variable_set_valuerank	(	ua_node_t	node,
		int32_t	valuerank
	)

Set the valuerank attribute of a variable node.

Parameters

node	Handle of node to set the valuerank
valuerank	Valuerank to set.

Returns: Zero on success or errorcode on failure

See also: ua_valuerank

Functions

Detailed Description

Function Documentation