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ecc-testing-fixes
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10 Commits

Author SHA1 Message Date
Marc Schier 889572472f Convert DataValue from class to readonly struct for further GC relief (#3796) 
Convert `DataValue` from a mutable reference type (`class`) to a `readonly struct` to eliminate per-allocation GC pressure on every attribute read, subscription publish, and history sample.

### Key API changes (user-visible)

| Before | After | Pattern |
|---|---|---|
| `class DataValue` | `readonly struct DataValue : INullable` | Foundation |
| `Equals(DataValue?)` / `operator ==(DataValue?, DataValue?)` | `Equals(DataValue)` / `operator ==(DataValue, DataValue)` | Value semantics |
| `IEncoder.WriteDataValue(string?, DataValue?)` | `IEncoder.WriteDataValue(string?, DataValue)` | Non-nullable wire API |
| `IDecoder.ReadDataValue(...) -> DataValue?` | `IDecoder.ReadDataValue(...) -> DataValue` | Same |
| `IDataChangeMonitoredItemQueue.PeekLast/Oldest()` | `TryPeekLastValue/Oldest(out DataValue)` | TryGet pattern |
| `IAggregateCalculator.GetProcessedValue(bool)` | `TryGetProcessedValue(bool, out DataValue)` | Same |
| `IUaPubSubDataStore.ReadPublishedDataItem(...)` | `TryReadPublishedDataItem(NodeId, uint, out DataValue)` | Same |
| `Dictionary<uint, DataValue?>` (NodeCacheContext) | `Dictionary<uint, DataValue>` | Default + IsNull |
| `IHistoryDataSource.FirstRaw/NextRaw` | `TryFirstRaw/TryNextRaw(out DataValue)` | TryGet pattern |
| `NodeState.ReadAttribute(... DataValue)` | `NodeState.ReadAttribute(... ref DataValue)` | Sync mutation via ref |
| `NodeState.ReadAttributeAsync(... DataValue)` | `NodeState.ReadAttributeAsync(...) -> ValueTask<(ServiceResult, DataValue)>` | Async return tuple |
| `obj as DataValue` (heterogeneous Dictionary<string, object>) | `obj is DataValue dv ? dv : default(DataValue)` | Safe struct cast |
| `Assert.That(dv, Is.Not.Null)` (tests) | `Assert.That(dv.IsNull, Is.False)` | Struct test pattern |
| `[Obsolete] Value` setter, all property setters | Removed; use ctor or `With*()` | Immutability |
| `[DataContract]` + `[DataMember]` | Removed; surrogate via `SerializableDataValue` + `DataValueSurrogateProvider` | Serialization |

### Wire format

Wire format is **byte-identical** to the previous class-based implementation across binary / JSON / XML encoders. Default DataValue (`.IsNull == true`) is treated as the equivalent of the old null reference (writes JSON `null`, binary `byte 0`, XML omitted element).

### Why TryGet pattern (instead of leaving `DataValue?`)

For methods that previously returned `DataValue?` to signal "no value available" (queue peek, aggregate result, data store lookup, history navigation), the conversion to `bool TryGet(out DataValue)` matches BCL conventions (`Dictionary.TryGetValue`, `Queue.TryPeek`, `Int32.TryParse`) and gives the caller an explicit "may be absent" affordance without `Nullable<DataValue>` overhead.

### Breaking changes summary

- `DataValue` is now a `readonly struct` - boxing/unboxing semantics change for callers using `object`-typed APIs.
- `IEncoder.WriteDataValue` / `IDecoder.ReadDataValue` / `ReadDataValueArray` interface signatures lose the `Nullable` wrapper.
- `IDataChangeMonitoredItemQueue.PeekLastValue` / `PeekOldestValue` -> `TryPeekLastValue` / `TryPeekOldestValue` (out parameter).
- `IAggregateCalculator.GetProcessedValue` -> `TryGetProcessedValue` (out parameter).
- `IUaPubSubDataStore.ReadPublishedDataItem` -> `TryReadPublishedDataItem` (out parameter).
- `NodeState.ReadAttribute` takes `ref DataValue`; `ReadAttributeAsync` returns `ValueTask<(ServiceResult, DataValue)>`.
- `DataValue` property setters removed (use constructor + `With*` mutators).
 2026-05-23 11:38:49 +02:00
Marc Schier 70b4498db8 Certificate manager and ref counted certificate type (#3688) 
* New certificate and secrete abstraction with certificate infrastructure and certificate/secret stores. 
* leak testing for certificate resources to validate new ref counting in every test assembly
* Migration guide updated and documentation added for all
* Remove IDisposable from Nodestate and UserIdentity.
* UserCertificateTokenHandler now just points into certificate registry/stores, no dispose required
* Fix CA2000 warnings and cleanup of other diagnostics, increase warning levels in .editorconfig
 2026-05-12 07:56:38 +02:00
Marc Schier 6c8c1a6d29 Enable dispose analyzers CA2000 and CA2213 and fix all issues (#3670) 2026-04-17 13:39:34 +02:00
Marc Schier fd41681f4b Add support to publish OPC UA applications as Native AOT (#3633) 
* make most ptojects aot compatible
* Remove newtonsoft
* Migrate all projects from Mono.Options to System.CommandLine 2.0.5
* Fix array clone
* Replace serializers for storage using new attribute driven  type geberator
* Add new AOT integration tests covering all functional areas
* Documentation updates
 2026-04-13 20:52:29 +02:00
Marc Schier 03777ecb09 New Json decoder/encoders, array/matrix abstractions, ByteString, and more. (#3619) 
- **Collections overhaul** — new/rewritten collection types (`ArrayOf`, `Collections` commits)
- **`Variant` builder/accessor** — new APIs for constructing and accessing Variants
- **`NodeId` operators made explicit** — breaking change for implicit conversions
- **Version bumped to 1.6** with preview build support
- **NumericRange** uses Variant
- **object** type accessors and general usage removed.

### 🏗️ Infrastructure
- Build config updated; `.NET 10` targeting
- InternalsVisibleTo moved to `.csproj`
- Pipeline/CI adjustments
 2026-03-18 12:23:30 +01:00
Marc Schier f66ceffd75 Immutable built in types and code generation (#3534) 
Generate stack and application code using source generators
Change built in types to readonly structs
  Update localized text implementation to use JSON text serializer
  Status code with symbolic names
  Immutable node ids
  No boxing for all built in types <= 8 bytes in Variant.
Split user identity token and token handling via token handler
Add migration guide for breaking changes
 2026-02-12 16:27:07 +01:00
Marc Schier 2960388560 Update headers and license files (#3388) 
Update license headers to copy right year 2025, replace RCL/GPL headers with MIT, replace the nuget license with MIT (via license expression).
 2025-12-04 19:44:40 +01:00
Marc Schier 8e7a73c7df Introduce telemetry context and proper use of ILogger (#3213) 2025-09-25 20:25:31 +02:00
Marc Schier 9830e5d53e Enable roslynizer and fix all analyzer issues (#3157) 
* Fix warnings and suggestions
* Enable roslynator
 2025-08-16 04:10:24 -07:00
Martin Regen 7a04a4b396 Add UA Fuzzer solution for afl-fuzz and libfuzzer (#2603) 
- Add a solution to provide fuzzer support for afl-fuzz and libfuzzer.
- Add fuzz targets for Binary, Json and Xml encoder and decoder fuzzing. For afl-fuzz and libfuzzer.
- Fix issues in encoders and decoders when unexpected exceptions are returned. The expectation is to return only ServiceResultException with BadDecodingError, BadEncodingError or BadEncodingLimitsExceeded.
- Add a tool to create Testcases. 
- Add a tool to playback crashes and timeouts.
- Solution is extensible with common files to discover new fuzz targets by reflection. New fuzz projects can share many files with the first project.
- Breaking change: Fix how BinaryDecoder is used: Previously, calling close on the BinaryDecoder implicitly disposed the stream. Change behavior so that `using` pattern can be applied across the board.
 2024-05-02 22:29:29 +02:00