ua_monitoreditem Struct Reference

Structure to represent a monitoreditem in the server. More...

#include <monitoreditem.h>

Public Member Functions
int	ua_monitoreditem_new_value (struct ua_monitoreditem *item, struct ua_datavalue *value)
	Add a new value to a monitoreditem. More...
struct uasession_session *	ua_monitoreditem_get_session (struct ua_monitoreditem *item)
	Get the session belonging to a monitoreditem. More...

Data Fields
struct ua_nodeid	nodeid
	nodeid of the item to monitor
uint32_t	sampling_interval
	sampling interval can be adjusted by provider in add_item or modify_item
uint32_t	user_data [2]
	user data can be used by provider
uint32_t	attributeid
	attributeid to monitor
struct ua_indexrange *	range
	array of requested indexranges for this item
unsigned int	num_ranges
	number of entries in the range array
uint32_t	timeout_hint
	timeout in ms an add/modify/remove may take, 0 indicates no timeout
enum ua_timestampstoreturn	ts
	timestamps to return for the monitoreditem
ua_statuscode	operation_result
	async result of the add/modify/remove operation
uint32_t	id
	server assigned id of the monitored item
bool	discard_oldest
bool	initial_value
uint32_t	client_handle
enum ua_monitoringmode	monitoring_mode
enum ua_datachangetrigger	datachangetrigger
struct ua_datavalue	last_value
struct ua_subscription *	subscription
struct util_ringqueue	value_queue

Detailed Description

Structure to represent a monitoreditem in the server.

Member Function Documentation

struct uasession_session * ua_monitoreditem_get_session

(

struct ua_monitoreditem *

item

)

Get the session belonging to a monitoreditem.

Parameters

item

Returns

int ua_monitoreditem_new_value	(	struct ua_monitoreditem *	item,
		struct ua_datavalue *	value
	)

Add a new value to a monitoreditem.

Add a newly sampled value to the monitoreditem, the functions checks if the value changed and enqueues it if necessary.

In case of success the function takes ownership of the value and finally clears it and calls ipc_free on the pointer. In case of failure the caller is responsible for cleaning the value up.

Parameters

item	Monitoreditem to add a new value to.
value	The new value.

Returns

Zero on success or errorcode on failure.

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The documentation for this struct was generated from the following files:

• C:/work/embeddedstack/src/uaserver/monitoreditem/monitoreditem.h
• C:/work/embeddedstack/src/uaserver/monitoreditem/monitoreditem.c