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High Performance OPC UA Server SDK
1.2.0.193
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High Performance OPC UA Server SDK
1.2.0.193
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The attributes for a variable node. More...
#include <variableattributes.h>
Data Fields | |
| uint32_t | specified_attributes |
| struct ua_localizedtext | display_name |
| struct ua_localizedtext | description |
| uint32_t | write_mask |
| uint32_t | user_write_mask |
| struct ua_variant | value |
| struct ua_nodeid | data_type |
| int32_t | value_rank |
| uint32_t * | array_dimensions |
| int32_t | num_array_dimensions |
| uint8_t | access_level |
| uint8_t | user_access_level |
| double | minimum_sampling_interval |
| bool | historizing |
Related Functions | |
| void | ua_variableattributes_init (struct ua_variableattributes *t) |
| Initialize an ua_variableattributes struct with a valid value. More... | |
| void | ua_variableattributes_clear (struct ua_variableattributes *t) |
| Clear all resources alloctated in an ua_variableattributes struct. More... | |
| int | ua_variableattributes_compare (const struct ua_variableattributes *a, const struct ua_variableattributes *b) |
| Compare two ua_variableattributes structs. More... | |
| int | ua_variableattributes_copy (struct ua_variableattributes *dst, const struct ua_variableattributes *src) |
| Create a copy of a ua_variableattributes struct. More... | |
| static int | ua_variableattributes_resize_array_dimensions_array (struct ua_variableattributes *val, int32_t new_len) |
| Resize the array_dimensions array of a ua_variableattributes struct. More... | |
The attributes for a variable node.
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Clear all resources alloctated in an ua_variableattributes struct.
Frees allocated memory like arrays and resets numeric values. The ua_variableattributes struct itself is not freed and must be freed by the caller if required. This function always succeeds for a valid ua_variableattributes struct, that was validly decoded, initilized by ua_variableattributes_init or created with ua_variableattributes_copy.
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Compare two ua_variableattributes structs.
Compares the content of the ua_variableattributes struct a to the content of the ua_variableattributes struct b. If a is smaller than b, an integer less than zero is returned, if a is bigger than b, an integer greater than zero is returned. If both structs are equal zero is returned.
This function creates a total order on ua_variableattributes structs, so it is well suited to not only determine equality, but also sort multiple instances of this struct.
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Create a copy of a ua_variableattributes struct.
Copy all fields from struct ua_variableattributes src to dst. Creates a deep copy so all content is recusively copied and both src and dst can be used and must be freed separately.
dst is not cleared before the copy operation, so it must not have any allocated data. It may or may not be initilized by the caller before copy.
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Initialize an ua_variableattributes struct with a valid value.
After initialization the fields of the struct are set to valid and consistent values and can safley be accessed. An initialized ua_variableattributes struct can also be passed to ua_variableattributes_compare, ua_variableattributes_copy and ua_variableattributes_clear. This function will always succeed as long as an ua_variableattributes struct is passed to it.
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Resize the array_dimensions array of a ua_variableattributes struct.
Depending on new_len and the current size of the array, the array will be created, increased, decreased or deleted. In case array members are removed these are cleared properly, new array members are initialized with zero.
| new_len | New length of the array_dimensions array in number of members. |