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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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Data Fields | |
| struct ua_querydataset * | query_data_sets |
| The array of QueryDataSets. | |
| int32_t | num_query_data_sets |
| Number of elements in ua_querynextresponse::query_data_sets. | |
| struct ua_bytestring | revised_continuation_point |
| Server-defined opaque value that represents the continuation point. More... | |
Related Functions | |
| void | ua_querynextresponse_init (struct ua_querynextresponse *t) |
| Initialize an ua_querynextresponse struct with a valid value. More... | |
| void | ua_querynextresponse_clear (struct ua_querynextresponse *t) |
| Clear all resources alloctated in an ua_querynextresponse struct. More... | |
| int | ua_querynextresponse_compare (const struct ua_querynextresponse *a, const struct ua_querynextresponse *b) |
| Compare two ua_querynextresponse structs. More... | |
| int | ua_querynextresponse_copy (struct ua_querynextresponse *dst, const struct ua_querynextresponse *src) |
| Create a copy of a ua_querynextresponse struct. More... | |
| static int | ua_querynextresponse_resize_query_data_sets_array (struct ua_querynextresponse *val, int32_t new_len) |
| Resize the query_data_sets array of a ua_querynextresponse struct. More... | |
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Clear all resources alloctated in an ua_querynextresponse struct.
Frees allocated memory like arrays and resets numeric values. The ua_querynextresponse struct itself is not freed and must be freed by the caller if required. This function always succeeds for a valid ua_querynextresponse struct, that was validly decoded or initilized by ua_querynextresponse_init.
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Compare two ua_querynextresponse structs.
Compares the content of the ua_querynextresponse struct a to the content of the ua_querynextresponse 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_querynextresponse 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_querynextresponse struct.
Copy all fields from struct ua_querynextresponse 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_querynextresponse 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_querynextresponse struct can also be passed to ua_querynextresponse_clear. This function will always succeed as long as an ua_querynextresponse struct is passed to it.
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Resize the query_data_sets array of a ua_querynextresponse 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 query_data_sets array in number of members. |
| revised_continuation_point |
Server-defined opaque value that represents the continuation point.
It is used only if the information to be returned is too large to be contained in a single response. If not used or if ua_QueryNextRequest::release_continuation_point is set, the value of this parameter is null.