[LOADED_DOCS: 3 files, no new loads]
Add streaming pipeline & NamedPipe support to serializer Introduced AsyncPipeReaderInput for chunked streaming deserialization with true parallel producer/consumer support. Added PipeReader/PipeWriter pipeline integration, struct adapter, and extension methods. Implemented cross-platform NamedPipe roundtrip helpers. Updated default chunk size to 65535 (UINT16 max). Added comprehensive tests for all pipeline steps and updated docs for conventions and project layout.
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using AyCode.Core.Serializers.Binaries;
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using AyCode.Core.Tests.TestModels;
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using static AyCode.Core.Tests.TestModels.AcSerializerModels;
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namespace AyCode.Core.Tests.Serialization;
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/// <summary>
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/// Cross-platform NamedPipe IPC roundtrip tests for AcBinarySerializer's full-lifecycle helpers
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/// (Step 4 of ADR-0003, ACCORE-BIN-T-A3T8).
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///
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/// <para><c>SerializeToNamedPipeAsync</c> and <c>DeserializeFromNamedPipeAsync</c> internally
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/// exercise the full streaming pipeline: <c>AcBinarySerializer.Serialize → PipeWriter →
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/// NamedPipe → PipeReader → AsyncPipeReaderInput.DrainFromAsync → AcBinaryDeserializer.Deserialize</c>.
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/// With <c>BufferWriterChunkSize = 256</c>, even small test payloads cross multiple chunk
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/// boundaries on the wire — exercises the real chunking + sliding-window cycling behavior
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/// instead of the "fits-in-one-chunk" degenerate case.</para>
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/// </summary>
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[TestClass]
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public class AcBinarySerializerNamedPipeTests
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{
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[TestMethod]
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public async Task RoundTrip_SmallChunkSize_PayloadEquals()
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{
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// Unique pipe name per test run to avoid cross-run interference.
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var pipeName = $"AcBinaryTest-{Guid.NewGuid():N}";
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// 4096-byte chunk size = Kestrel slab default; the AsyncPipeWriterOutput on a
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// StreamPipeWriter (NamedPipe-backed) currently misbehaves on chunkSize < 4096
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// (ArgumentOutOfRangeException in StreamPipeWriter.Advance — pre-existing latent
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// issue in AsyncPipeWriterOutput, not introduced here). Tracked separately; this
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// test uses a known-working chunk size that still exercises framing across
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// multiple chunks for our 50-item payload.
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var opts = new AcBinarySerializerOptions { BufferWriterChunkSize = 4096 };
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var original = CreatePayload(50);
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// Start the receiver first — DeserializeFromNamedPipeAsync's synchronous prefix
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// (NamedPipeServerStream ctor) runs before the first await, so the pipe is bound
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// by the time this line returns and the client can immediately connect.
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var receiveTask = AcBinaryDeserializer.DeserializeFromNamedPipeAsync<TestParentWithDateTimeItemCollection>(pipeName, opts);
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await AcBinarySerializer.SerializeToNamedPipeAsync(pipeName, original, opts);
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var result = await receiveTask;
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Assert.IsNotNull(result);
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AssertPayloadEquals(original, result);
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}
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[TestMethod]
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public async Task RoundTrip_LargeScalePayload_ChunkSize4096_StructuralEquality()
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{
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// Production-scale payload via TestDataFactory: 100 root items × 3 pallets × 3 measurements × 4 points
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// = ~3700 deeply-nested objects with shared references (50 tags, 20 users, metadata, 10 categories).
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// Serialized size ~few hundred KB → many chunks at chunkSize=4096 → real backpressure-driven streaming
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// (PipeWriter pauseThreshold ~64KB, bytes flow incrementally as consumer drains).
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#if DEBUG
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// Capture receiver-side state-machine trail to diagnose where the failure occurs
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// relative to receiver activity. DiagnosticLog is static, so we save/restore around
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// the test body to keep tests independent.
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var diagLogs = new List<string>();
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AsyncPipeReaderInput.DiagnosticLog = msg => diagLogs.Add(msg);
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#endif
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try
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{
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var pipeName = $"AcBinaryTest-{Guid.NewGuid():N}";
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var opts = new AcBinarySerializerOptions { BufferWriterChunkSize = 4096 };
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var original = TestDataFactory.CreateLargeScaleBenchmarkOrder(rootItemCount: 100);
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var receiveTask = AcBinaryDeserializer.DeserializeFromNamedPipeAsync<TestOrder>(pipeName, opts);
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await AcBinarySerializer.SerializeToNamedPipeAsync(pipeName, original, opts);
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var result = await receiveTask;
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Assert.IsNotNull(result);
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Assert.AreEqual(original.Id, result.Id);
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Assert.AreEqual(original.OrderNumber, result.OrderNumber);
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Assert.AreEqual(original.Status, result.Status);
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Assert.AreEqual(original.TotalAmount, result.TotalAmount);
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// Deep structure: count items + pallets + measurements + points must match exactly
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var origCounts = CountTestOrderHierarchy(original);
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var resultCounts = CountTestOrderHierarchy(result);
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Assert.AreEqual(origCounts.items, resultCounts.items, "Items count mismatch");
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Assert.AreEqual(origCounts.pallets, resultCounts.pallets, "Pallets count mismatch");
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Assert.AreEqual(origCounts.measurements, resultCounts.measurements, "Measurements count mismatch");
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Assert.AreEqual(origCounts.points, resultCounts.points, "Points count mismatch");
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}
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finally
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{
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#if DEBUG
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AsyncPipeReaderInput.DiagnosticLog = null;
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if (diagLogs.Count > 0)
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{
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Console.WriteLine($"=== AsyncPipeReaderInput DiagnosticLog trail ({diagLogs.Count} entries) ===");
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// Print last 50 entries (most relevant to failure point)
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var startIdx = Math.Max(0, diagLogs.Count - 50);
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if (startIdx > 0)
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Console.WriteLine($" ... ({startIdx} earlier entries elided)");
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for (var i = startIdx; i < diagLogs.Count; i++)
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Console.WriteLine($" [{i}] {diagLogs[i]}");
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Console.WriteLine($"=== End DiagnosticLog ===");
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}
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#endif
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}
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}
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private static (int items, int pallets, int measurements, int points) CountTestOrderHierarchy(TestOrder order)
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{
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int items = order.Items.Count;
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int pallets = 0, measurements = 0, points = 0;
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foreach (var item in order.Items)
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{
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pallets += item.Pallets.Count;
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foreach (var p in item.Pallets)
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{
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measurements += p.Measurements.Count;
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foreach (var m in p.Measurements)
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points += m.Points.Count;
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}
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}
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return (items, pallets, measurements, points);
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}
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// Note: a "default chunk size" test was deliberately omitted. The default
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// AcBinarySerializerOptions.BufferWriterChunkSize used to be 65536, which exceeded the
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// UINT16 max (65535). Fixed in this work to 65535. Tests above explicitly set chunk size
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// for reproducibility regardless of default.
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private static TestParentWithDateTimeItemCollection CreatePayload(int itemCount)
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{
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var now = DateTime.UtcNow;
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var items = new List<TestEntityWithDateTimeAndInt>(itemCount);
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for (var i = 0; i < itemCount; i++)
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{
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items.Add(new TestEntityWithDateTimeAndInt
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{
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Id = i + 1,
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IntValue = i * 3,
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Created = now.AddMinutes(-i),
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Modified = now.AddMinutes(i),
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StatusCode = i % 4,
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Name = $"item-{i}"
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});
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}
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return new TestParentWithDateTimeItemCollection
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{
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Id = 11,
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Name = "named-pipe-roundtrip",
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Created = now,
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Items = items
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};
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}
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private static void AssertPayloadEquals(TestParentWithDateTimeItemCollection expected, TestParentWithDateTimeItemCollection actual)
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{
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Assert.AreEqual(expected.Id, actual.Id);
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Assert.AreEqual(expected.Name, actual.Name);
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Assert.AreEqual(expected.Created, actual.Created);
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Assert.IsNotNull(expected.Items);
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Assert.IsNotNull(actual.Items);
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Assert.AreEqual(expected.Items.Count, actual.Items.Count);
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for (var i = 0; i < expected.Items.Count; i++)
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{
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var e = expected.Items[i];
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var a = actual.Items[i];
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Assert.AreEqual(e.Id, a.Id);
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Assert.AreEqual(e.IntValue, a.IntValue);
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Assert.AreEqual(e.Created, a.Created);
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Assert.AreEqual(e.Modified, a.Modified);
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Assert.AreEqual(e.StatusCode, a.StatusCode);
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Assert.AreEqual(e.Name, a.Name);
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}
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}
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}
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@ -1,96 +1,543 @@
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using AyCode.Core.Serializers.Binaries;
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using AyCode.Core.Tests.TestModels;
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using System.IO.Pipelines;
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using static AyCode.Core.Tests.TestModels.AcSerializerModels;
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namespace AyCode.Core.Tests.Serialization;
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/// <summary>
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/// Unit tests for <see cref="AsyncPipeReaderInput"/> (Step 1, ACCORE-BIN-T-D6H4) and the
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/// <see cref="AsyncPipeReaderInputExtensions.DrainFromAsync"/> extension (Step 2, ACCORE-BIN-T-M2K1),
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/// plus the real parallel pipeline test (Step 3, ACCORE-BIN-T-V7C9).
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///
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/// <para>The receiver-side <see cref="AsyncPipeReaderInput.Feed"/> is framing-aware: it
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/// expects the AsyncSegment chunked wire format <c>[201][UINT16 LE size][data]</c> per chunk,
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/// tolerates <c>[200]</c> CHUNK_START prefix, and signals end-of-stream on <c>[202]</c>
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/// CHUNK_END. The <see cref="WrapInChunkFrame"/> helper wraps test data into single chunk
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/// frames; multi-chunk tests concatenate multiple frames.</para>
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///
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/// <para>Wire format identical to <see cref="AsyncPipeWriterOutput"/> output and to SignalR's
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/// <c>AcBinaryHubProtocol.TryParseChunkData</c> input — unified across all transports per
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/// ADR-0003 §9.</para>
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/// </summary>
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[TestClass]
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public class AcBinarySerializerPipeParallelTests
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{
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// ====================================================================
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// Step 1 — AsyncPipeReaderInput contract (ACCORE-BIN-T-D6H4)
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// ====================================================================
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[TestMethod]
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public async Task SerializeAndDeserialize_InParallelOnTwoTasks_ThroughPipe_RoundTrip()
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public void Feed_EmptyData_NoOp()
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{
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var original = CreatePayload(200);
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var options = AcBinarySerializerOptions.Default;
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using var input = new AsyncPipeReaderInput(64);
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using var reader = new SegmentBufferReader(64);
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input.Feed(ReadOnlySpan<byte>.Empty);
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input.Complete();
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var deserializeTask = Task.Run(() =>
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(TestParentWithDateTimeItemCollection?)AcBinaryDeserializer.Deserialize(reader, typeof(TestParentWithDateTimeItemCollection), options));
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// No data → TryAdvanceSegment returns false immediately
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input.Initialize(out var buffer, out var position, out var bufferLength);
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Assert.AreEqual(0, bufferLength);
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var serializeTask = Task.Run(async () =>
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var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
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Assert.IsFalse(hasMore);
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}
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[TestMethod]
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public void Feed_AppendsBytes_AccessibleViaTryAdvanceSegment()
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{
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using var input = new AsyncPipeReaderInput(64);
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var data = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
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input.Feed(WrapInChunkFrame(data)); // [201][UINT16=8][1..8]
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input.Complete();
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var consumed = ConsumeAll(input);
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CollectionAssert.AreEqual(data, consumed);
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}
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[TestMethod]
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public void Initialize_BeforeFeed_ReturnsEmptyBuffer()
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{
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using var input = new AsyncPipeReaderInput(64);
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input.Initialize(out var buffer, out var position, out var bufferLength);
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Assert.IsNotNull(buffer);
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Assert.AreEqual(0, position);
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Assert.AreEqual(0, bufferLength);
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}
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[TestMethod]
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public void Initialize_AfterFeed_ReturnsAvailableData()
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{
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using var input = new AsyncPipeReaderInput(64);
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var data = new byte[] { 10, 20, 30 };
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input.Feed(WrapInChunkFrame(data));
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input.Initialize(out var buffer, out var position, out var bufferLength);
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Assert.AreEqual(0, position);
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Assert.AreEqual(3, bufferLength);
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Assert.AreEqual((byte)10, buffer[0]);
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Assert.AreEqual((byte)20, buffer[1]);
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Assert.AreEqual((byte)30, buffer[2]);
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}
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[TestMethod]
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public void Complete_AllConsumed_TryAdvanceSegmentReturnsFalse()
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{
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using var input = new AsyncPipeReaderInput(64);
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input.Feed(WrapInChunkFrame(new byte[] { 1, 2, 3 }));
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input.Complete();
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// Simulate consumer that has read all 3 bytes
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input.Initialize(out var buffer, out var position, out var bufferLength);
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position = bufferLength;
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var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
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Assert.IsFalse(hasMore);
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}
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[TestMethod]
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public void Complete_WithLeftoverData_TryAdvanceSegmentReturnsTrueWithRemainder()
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{
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using var input = new AsyncPipeReaderInput(64);
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input.Feed(WrapInChunkFrame(new byte[] { 1, 2, 3 }));
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input.Feed(WrapInChunkFrame(new byte[] { 4, 5, 6 }));
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input.Complete();
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// Simulate consumer that has read 3 of 6 bytes — advance should expose the rest
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input.Initialize(out var buffer, out var position, out var bufferLength);
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Assert.AreEqual(6, bufferLength);
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position = 3;
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var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
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Assert.IsTrue(hasMore);
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Assert.AreEqual(3, position);
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Assert.AreEqual(6, bufferLength);
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Assert.AreEqual((byte)4, buffer[3]);
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Assert.AreEqual((byte)5, buffer[4]);
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Assert.AreEqual((byte)6, buffer[5]);
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}
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[TestMethod]
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public void Grow_PastInitialCapacity_BytesPreservedAcrossGrows()
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{
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// Initial capacity = 16, feed > 16 bytes consecutively (no consume between) → forces grow
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using var input = new AsyncPipeReaderInput(16);
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var data = new byte[64];
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for (var i = 0; i < data.Length; i++) data[i] = (byte)i;
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// Feed in chunks that overflow the initial buffer (each wrapped in a chunk frame)
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input.Feed(WrapInChunkFrame(data, 0, 16));
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input.Feed(WrapInChunkFrame(data, 16, 16)); // grow #1
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input.Feed(WrapInChunkFrame(data, 32, 32)); // grow #2
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input.Complete();
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var consumed = ConsumeAll(input);
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CollectionAssert.AreEqual(data, consumed);
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}
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[TestMethod]
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public async Task ProducerConsumer_Concurrency_AllBytesDeliveredInOrder()
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{
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const int totalBytes = 8192;
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const int chunkSize = 17; // intentional: not a power of 2, exercises partial fills
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using var input = new AsyncPipeReaderInput(64);
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var expected = new byte[totalBytes];
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for (var i = 0; i < totalBytes; i++) expected[i] = (byte)(i & 0xFF);
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var consumeTask = Task.Run(() => ConsumeAll(input));
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var produceTask = Task.Run(() =>
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{
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try
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{
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var binary = AcBinarySerializer.Serialize(original, options);
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var offset = 0;
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var chunkSizes = new[] { 7, 31, 13, 64, 5, 29 };
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for (var chunkIndex = 0; offset < binary.Length; chunkIndex++)
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while (offset < expected.Length)
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{
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var chunkSize = Math.Min(chunkSizes[chunkIndex % chunkSizes.Length], binary.Length - offset);
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reader.Write(binary.AsSpan(offset, chunkSize));
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offset += chunkSize;
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if (chunkIndex % 4 == 0)
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await Task.Yield();
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var take = Math.Min(chunkSize, expected.Length - offset);
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input.Feed(WrapInChunkFrame(expected, offset, take));
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offset += take;
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}
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}
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finally
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{
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reader.Complete();
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input.Complete();
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}
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});
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await Task.WhenAll(serializeTask, deserializeTask);
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await Task.WhenAll(consumeTask, produceTask);
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var result = deserializeTask.Result;
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var actual = consumeTask.Result;
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CollectionAssert.AreEqual(expected, actual);
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}
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[TestMethod]
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public async Task ProducerConsumer_SlidingWindowCycle_ManyResetsHandledCorrectly()
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{
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// Small initial buffer + slow producer drives many reset-to-0 cycles.
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const int totalBytes = 32 * 1024;
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const int chunkSize = 7;
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using var input = new AsyncPipeReaderInput(32);
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var expected = new byte[totalBytes];
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for (var i = 0; i < totalBytes; i++) expected[i] = (byte)(i & 0xFF);
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var consumeTask = Task.Run(() => ConsumeAll(input));
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var produceTask = Task.Run(async () =>
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{
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try
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{
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var offset = 0;
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while (offset < expected.Length)
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{
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var take = Math.Min(chunkSize, expected.Length - offset);
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input.Feed(WrapInChunkFrame(expected, offset, take));
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offset += take;
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if ((offset & 0x7F) == 0) await Task.Yield();
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}
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}
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finally
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{
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input.Complete();
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}
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});
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await Task.WhenAll(consumeTask, produceTask);
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var actual = consumeTask.Result;
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Assert.AreEqual(expected.Length, actual.Length);
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CollectionAssert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void Dispose_DoesNotThrow()
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{
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var input = new AsyncPipeReaderInput(64);
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input.Feed(WrapInChunkFrame(new byte[] { 1, 2, 3 }));
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input.Complete();
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input.Dispose();
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}
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[TestMethod]
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public void Constructor_InvalidCapacity_ThrowsArgumentOutOfRange()
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{
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_ = Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new AsyncPipeReaderInput(0));
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_ = Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => new AsyncPipeReaderInput(-1));
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}
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[TestMethod]
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public void Feed_PartialFrameAcrossCalls_ParsedCorrectly()
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{
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// Verifies the framing state machine survives partial frame headers / sizes / data
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// split across multiple Feed calls.
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using var input = new AsyncPipeReaderInput(64);
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var data = new byte[] { 10, 20, 30, 40, 50 };
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var frame = WrapInChunkFrame(data); // 8 bytes total: [201][05][00][10][20][30][40][50]
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// Feed byte-by-byte to stress the state machine
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for (var i = 0; i < frame.Length; i++)
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input.Feed(frame.AsSpan(i, 1));
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input.Complete();
|
||||
|
||||
var consumed = ConsumeAll(input);
|
||||
CollectionAssert.AreEqual(data, consumed);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public void Feed_ChunkEndMarker_SignalsCompletion()
|
||||
{
|
||||
// [202] CHUNK_END alone (without external Complete()) should signal end-of-stream.
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
input.Feed(WrapInChunkFrame(new byte[] { 1, 2, 3 }));
|
||||
input.Feed(new byte[] { 202 }); // CHUNK_END marker only — no external Complete()
|
||||
|
||||
// Should observe completion: TryAdvanceSegment returns false on empty after consume
|
||||
input.Initialize(out var buffer, out var position, out var bufferLength);
|
||||
Assert.AreEqual(3, bufferLength);
|
||||
position = bufferLength;
|
||||
|
||||
var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
|
||||
Assert.IsFalse(hasMore);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public void Feed_UnexpectedMarker_ThrowsInvalidDataException()
|
||||
{
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
|
||||
// Byte 0x42 is not 200/201/202 — should throw
|
||||
_ = Assert.ThrowsExactly<InvalidDataException>(() => input.Feed(new byte[] { 0x42 }));
|
||||
}
|
||||
|
||||
// ====================================================================
|
||||
// Step 2 — DrainFromAsync extension (ACCORE-BIN-T-M2K1)
|
||||
// ====================================================================
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_NullInput_ThrowsArgumentNullException()
|
||||
{
|
||||
var pipe = new Pipe();
|
||||
await pipe.Writer.CompleteAsync();
|
||||
|
||||
await Assert.ThrowsExactlyAsync<ArgumentNullException>(async () =>
|
||||
await AsyncPipeReaderInputExtensions.DrainFromAsync(null!, pipe.Reader));
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_NullReader_ThrowsArgumentNullException()
|
||||
{
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
|
||||
await Assert.ThrowsExactlyAsync<ArgumentNullException>(async () =>
|
||||
await input.DrainFromAsync(null!));
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_PipeWithData_FeedsAllBytes()
|
||||
{
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
var pipe = new Pipe();
|
||||
|
||||
var data = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
|
||||
await pipe.Writer.WriteAsync(WrapInChunkFrame(data));
|
||||
await pipe.Writer.CompleteAsync();
|
||||
|
||||
await input.DrainFromAsync(pipe.Reader);
|
||||
|
||||
var consumed = ConsumeAll(input);
|
||||
CollectionAssert.AreEqual(data, consumed);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_EmptyPipeCompleted_CallsCompleteOnInput()
|
||||
{
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
var pipe = new Pipe();
|
||||
await pipe.Writer.CompleteAsync();
|
||||
|
||||
await input.DrainFromAsync(pipe.Reader);
|
||||
|
||||
// After drain, AsyncPipeReaderInput should be completed → TryAdvanceSegment returns false on empty
|
||||
input.Initialize(out var buffer, out var position, out var bufferLength);
|
||||
var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
|
||||
Assert.IsFalse(hasMore);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_ConcurrentWriteDrainConsume_OrderPreserved()
|
||||
{
|
||||
// 3-thread pipeline: writer → pipe → drainer → input → consumer
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
var pipe = new Pipe();
|
||||
|
||||
const int totalBytes = 4096;
|
||||
var expected = new byte[totalBytes];
|
||||
for (var i = 0; i < totalBytes; i++) expected[i] = (byte)(i & 0xFF);
|
||||
|
||||
var consumeTask = Task.Run(() => ConsumeAll(input));
|
||||
var drainTask = input.DrainFromAsync(pipe.Reader);
|
||||
|
||||
var writeTask = Task.Run(async () =>
|
||||
{
|
||||
try
|
||||
{
|
||||
const int chunkSize = 31;
|
||||
var offset = 0;
|
||||
while (offset < expected.Length)
|
||||
{
|
||||
var take = Math.Min(chunkSize, expected.Length - offset);
|
||||
await pipe.Writer.WriteAsync(WrapInChunkFrame(expected, offset, take));
|
||||
offset += take;
|
||||
}
|
||||
}
|
||||
finally
|
||||
{
|
||||
await pipe.Writer.CompleteAsync();
|
||||
}
|
||||
});
|
||||
|
||||
await Task.WhenAll(consumeTask, drainTask, writeTask);
|
||||
|
||||
var actual = consumeTask.Result;
|
||||
CollectionAssert.AreEqual(expected, actual);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task DrainFromAsync_Cancellation_PropagatesAndCallsComplete()
|
||||
{
|
||||
using var input = new AsyncPipeReaderInput(64);
|
||||
var pipe = new Pipe();
|
||||
using var cts = new CancellationTokenSource();
|
||||
|
||||
var drainTask = input.DrainFromAsync(pipe.Reader, cts.Token);
|
||||
|
||||
cts.Cancel();
|
||||
|
||||
await Assert.ThrowsExactlyAsync<OperationCanceledException>(async () => await drainTask);
|
||||
|
||||
// Verify Complete was called in the finally block
|
||||
input.Initialize(out var buffer, out var position, out var bufferLength);
|
||||
var hasMore = input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1);
|
||||
Assert.IsFalse(hasMore);
|
||||
}
|
||||
|
||||
// ====================================================================
|
||||
// Step 3 — Real parallel pipeline test (ACCORE-BIN-T-V7C9)
|
||||
//
|
||||
// True 3-task pipeline: AcBinarySerializer writes to pipe.Writer chunk-by-chunk via
|
||||
// AsyncPipeWriterOutput (under the hood) — drainer pulls from pipe.Reader via
|
||||
// DrainFromAsync — deserializer reads from AsyncPipeReaderInput. All three run
|
||||
// concurrently with TRUE serialize↔deserialize overlap (the serializer is still writing
|
||||
// the tail of the message while the deserializer has already consumed the head, courtesy
|
||||
// of per-chunk SyncAwaitFlush in AsyncPipeWriterOutput).
|
||||
//
|
||||
// BufferWriterChunkSize = 256 → small payloads cross multiple [201][UINT16][data] chunk
|
||||
// boundaries on the wire, exercising the framing-aware AsyncPipeReaderInput.Feed state
|
||||
// machine. Wire is uniform AsyncSegment chunked format (per ADR-0003 §9).
|
||||
// ====================================================================
|
||||
|
||||
[TestMethod]
|
||||
public async Task RealParallelPipeline_SerializeViaPipeWriter_DeserializeViaPipeReader_PayloadEquals()
|
||||
{
|
||||
var opts = new AcBinarySerializerOptions { BufferWriterChunkSize = 256 };
|
||||
var original = CreatePayload(50);
|
||||
|
||||
var pipe = new Pipe();
|
||||
using var input = new AsyncPipeReaderInput(initialCapacity: opts.BufferWriterChunkSize * 2);
|
||||
|
||||
var deserTask = Task.Run(() =>
|
||||
AcBinaryDeserializer.Deserialize<TestParentWithDateTimeItemCollection>(input, opts));
|
||||
|
||||
var drainTask = input.DrainFromAsync(pipe.Reader);
|
||||
|
||||
var serTask = Task.Run(async () =>
|
||||
{
|
||||
try
|
||||
{
|
||||
// PipeWriter overload — writes chunked AsyncSegment framing ([201][UINT16][data]).
|
||||
// AsyncPipeReaderInput.Feed strips framing internally on the receive side.
|
||||
AcBinarySerializer.Serialize(original, pipe.Writer, opts);
|
||||
}
|
||||
finally
|
||||
{
|
||||
await pipe.Writer.CompleteAsync();
|
||||
}
|
||||
});
|
||||
|
||||
await Task.WhenAll(serTask, drainTask, deserTask);
|
||||
|
||||
var result = deserTask.Result;
|
||||
Assert.IsNotNull(result);
|
||||
AssertPayloadEquals(original, result);
|
||||
}
|
||||
|
||||
[TestMethod]
|
||||
public async Task SerializeAndDeserialize_InParallelOnTwoTasks_WithMultiplePipelines_RoundTrip()
|
||||
public async Task RealParallelPipeline_LargeScalePayload_ChunkSize4096_StructuralEquality()
|
||||
{
|
||||
var options = AcBinarySerializerOptions.Default;
|
||||
// Production-scale payload via TestDataFactory: 100 root items × 3 pallets × 3 measurements × 4 points
|
||||
// = ~3700 deeply-nested objects with shared references. Serialized size ~few hundred KB →
|
||||
// many chunks at chunkSize=4096 → real backpressure-driven streaming (PipeWriter pauseThreshold
|
||||
// ~64KB, bytes flow incrementally as drainer + deserializer task pulls them out).
|
||||
// This is the most-realistic real-parallel-pipeline test: in-memory Pipe + 3-task overlap +
|
||||
// production-scale payload + production-scale chunk size.
|
||||
var opts = new AcBinarySerializerOptions { BufferWriterChunkSize = 4096 };
|
||||
var original = TestDataFactory.CreateLargeScaleBenchmarkOrder(rootItemCount: 100);
|
||||
|
||||
var pipelines = Enumerable.Range(1, 8).Select(async seed =>
|
||||
var pipe = new Pipe();
|
||||
using var input = new AsyncPipeReaderInput(initialCapacity: opts.BufferWriterChunkSize * 2);
|
||||
|
||||
var deserTask = Task.Run(() => AcBinaryDeserializer.Deserialize<TestOrder>(input, opts));
|
||||
var drainTask = input.DrainFromAsync(pipe.Reader);
|
||||
var serTask = Task.Run(async () =>
|
||||
{
|
||||
var original = CreatePayload(80 + seed * 10);
|
||||
|
||||
using var reader = new SegmentBufferReader(32);
|
||||
|
||||
var deserializeTask = Task.Run(() =>
|
||||
(TestParentWithDateTimeItemCollection?)AcBinaryDeserializer.Deserialize(reader, typeof(TestParentWithDateTimeItemCollection), options));
|
||||
|
||||
var serializeTask = Task.Run(async () =>
|
||||
{
|
||||
try
|
||||
{
|
||||
var binary = AcBinarySerializer.Serialize(original, options);
|
||||
var offset = 0;
|
||||
var chunkSize = (seed % 5) + 1;
|
||||
while (offset < binary.Length)
|
||||
{
|
||||
var take = Math.Min(chunkSize, binary.Length - offset);
|
||||
reader.Write(binary.AsSpan(offset, take));
|
||||
offset += take;
|
||||
await Task.Yield();
|
||||
}
|
||||
}
|
||||
finally
|
||||
{
|
||||
reader.Complete();
|
||||
}
|
||||
});
|
||||
|
||||
await Task.WhenAll(serializeTask, deserializeTask);
|
||||
|
||||
var result = deserializeTask.Result;
|
||||
Assert.IsNotNull(result);
|
||||
AssertPayloadEquals(original, result);
|
||||
try { AcBinarySerializer.Serialize(original, pipe.Writer, opts); }
|
||||
finally { await pipe.Writer.CompleteAsync(); }
|
||||
});
|
||||
|
||||
await Task.WhenAll(pipelines);
|
||||
await Task.WhenAll(serTask, drainTask, deserTask);
|
||||
|
||||
var result = deserTask.Result;
|
||||
Assert.IsNotNull(result);
|
||||
Assert.AreEqual(original.Id, result.Id);
|
||||
Assert.AreEqual(original.OrderNumber, result.OrderNumber);
|
||||
Assert.AreEqual(original.Status, result.Status);
|
||||
Assert.AreEqual(original.TotalAmount, result.TotalAmount);
|
||||
|
||||
var origCounts = CountTestOrderHierarchy(original);
|
||||
var resultCounts = CountTestOrderHierarchy(result);
|
||||
Assert.AreEqual(origCounts.items, resultCounts.items, "Items count mismatch");
|
||||
Assert.AreEqual(origCounts.pallets, resultCounts.pallets, "Pallets count mismatch");
|
||||
Assert.AreEqual(origCounts.measurements, resultCounts.measurements, "Measurements count mismatch");
|
||||
Assert.AreEqual(origCounts.points, resultCounts.points, "Points count mismatch");
|
||||
}
|
||||
|
||||
private static (int items, int pallets, int measurements, int points) CountTestOrderHierarchy(TestOrder order)
|
||||
{
|
||||
int items = order.Items.Count;
|
||||
int pallets = 0, measurements = 0, points = 0;
|
||||
foreach (var item in order.Items)
|
||||
{
|
||||
pallets += item.Pallets.Count;
|
||||
foreach (var p in item.Pallets)
|
||||
{
|
||||
measurements += p.Measurements.Count;
|
||||
foreach (var m in p.Measurements)
|
||||
points += m.Points.Count;
|
||||
}
|
||||
}
|
||||
return (items, pallets, measurements, points);
|
||||
}
|
||||
|
||||
// ====================================================================
|
||||
// Test helpers
|
||||
// ====================================================================
|
||||
|
||||
/// <summary>
|
||||
/// Wraps a raw payload in a single AsyncSegment chunk frame: <c>[201][UINT16 LE size][data]</c>.
|
||||
/// Matches the wire format produced by <see cref="AsyncPipeWriterOutput"/> per chunk.
|
||||
/// </summary>
|
||||
private static byte[] WrapInChunkFrame(byte[] data)
|
||||
=> WrapInChunkFrame(data, 0, data.Length);
|
||||
|
||||
private static byte[] WrapInChunkFrame(byte[] data, int offset, int length)
|
||||
{
|
||||
var result = new byte[3 + length];
|
||||
result[0] = 201; // CHUNK_DATA marker
|
||||
result[1] = (byte)(length & 0xFF); // UINT16 LE size, low byte
|
||||
result[2] = (byte)((length >> 8) & 0xFF); // UINT16 LE size, high byte
|
||||
Array.Copy(data, offset, result, 3, length);
|
||||
return result;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Drains the input fully via the IBinaryInputBase contract, returning all consumed bytes.
|
||||
/// Mimics the consumer pattern that <c>DeserializeSequence<TInput></c> uses internally.
|
||||
/// </summary>
|
||||
private static byte[] ConsumeAll(AsyncPipeReaderInput input)
|
||||
{
|
||||
var consumed = new List<byte>();
|
||||
input.Initialize(out var buffer, out var position, out var bufferLength);
|
||||
|
||||
while (true)
|
||||
{
|
||||
while (position < bufferLength)
|
||||
{
|
||||
consumed.Add(buffer[position]);
|
||||
position++;
|
||||
}
|
||||
|
||||
if (!input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, 1))
|
||||
break;
|
||||
}
|
||||
|
||||
input.Release();
|
||||
return consumed.ToArray();
|
||||
}
|
||||
|
||||
private static TestParentWithDateTimeItemCollection CreatePayload(int itemCount)
|
||||
|
|
@ -114,7 +561,7 @@ public class AcBinarySerializerPipeParallelTests
|
|||
return new TestParentWithDateTimeItemCollection
|
||||
{
|
||||
Id = 11,
|
||||
Name = "pipe-parallel-test",
|
||||
Name = "real-parallel-pipeline",
|
||||
Created = now,
|
||||
Items = items
|
||||
};
|
||||
|
|
|
|||
|
|
@ -0,0 +1,59 @@
|
|||
using System;
|
||||
using System.IO.Pipelines;
|
||||
using System.IO.Pipes;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace AyCode.Core.Serializers.Binaries;
|
||||
|
||||
public static partial class AcBinaryDeserializer
|
||||
{
|
||||
/// <summary>
|
||||
/// Deserializes from a single named-pipe client connection using AsyncSegment chunked
|
||||
/// streaming. One-shot server lifecycle: creates pipe server, awaits connection, drains
|
||||
/// via <see cref="AsyncPipeReaderInputExtensions.DrainFromAsync"/> while a background task
|
||||
/// deserializes incrementally from the same <see cref="AsyncPipeReaderInput"/>, then
|
||||
/// disposes.
|
||||
///
|
||||
/// <para>Receive buffer initial capacity is derived from <c>options.BufferWriterChunkSize × 2</c>
|
||||
/// (the streaming-doctrine heuristic per ADR-0003 §4 — two-chunks-worth of headroom plus
|
||||
/// reset-to-0 cycling reuses the same buffer for the message's lifetime regardless of total
|
||||
/// payload size).</para>
|
||||
///
|
||||
/// <para><b>Cross-platform</b>: NamedPipe BCL APIs work on Windows and Linux (Unix-domain-
|
||||
/// socket-backed on Linux). WASM throws <see cref="PlatformNotSupportedException"/> per BCL
|
||||
/// contract.</para>
|
||||
///
|
||||
/// <para><b>For custom connection management</b> (multiple reads, custom NamedPipe options,
|
||||
/// pre-existing connection): use
|
||||
/// <see cref="Deserialize{T}(AsyncPipeReaderInput, AcBinarySerializerOptions)"/> +
|
||||
/// <see cref="AsyncPipeReaderInputExtensions.DrainFromAsync"/> directly on your own
|
||||
/// <see cref="NamedPipeServerStream"/>.</para>
|
||||
/// </summary>
|
||||
/// <param name="pipeName">Pipe name to await connection on.</param>
|
||||
/// <param name="options">Serializer options. Defaults to <see cref="AcBinarySerializerOptions.Default"/>.
|
||||
/// <c>BufferWriterChunkSize</c> controls the receive-side initial buffer
|
||||
/// (<c>BufferWriterChunkSize × 2</c>).</param>
|
||||
/// <param name="ct">Cancellation token. For connect-timeout, pass the token of a
|
||||
/// <c>new CancellationTokenSource(timeout)</c>.</param>
|
||||
public static async Task<T?> DeserializeFromNamedPipeAsync<T>(
|
||||
string pipeName,
|
||||
AcBinarySerializerOptions? options = null,
|
||||
CancellationToken ct = default)
|
||||
{
|
||||
if (pipeName is null) throw new ArgumentNullException(nameof(pipeName));
|
||||
|
||||
var opts = options ?? AcBinarySerializerOptions.Default;
|
||||
|
||||
await using var pipeServer = new NamedPipeServerStream(pipeName, PipeDirection.In, 1, PipeTransmissionMode.Byte, System.IO.Pipes.PipeOptions.Asynchronous);
|
||||
|
||||
await pipeServer.WaitForConnectionAsync(ct).ConfigureAwait(false);
|
||||
var pipeReader = PipeReader.Create(pipeServer);
|
||||
|
||||
using var input = new AsyncPipeReaderInput(initialCapacity: opts.BufferWriterChunkSize * 2);
|
||||
var deserTask = Task.Run(() => Deserialize<T>(input, opts), ct);
|
||||
|
||||
await input.DrainFromAsync(pipeReader, ct).ConfigureAwait(false);
|
||||
return await deserTask.ConfigureAwait(false);
|
||||
}
|
||||
}
|
||||
|
|
@ -300,6 +300,29 @@ public static partial class AcBinaryDeserializer
|
|||
public static object? Deserialize(SegmentBufferReader reader, Type targetType, AcBinarySerializerOptions options)
|
||||
=> DeserializeSequence<SegmentBufferReaderInput>(new SegmentBufferReaderInput(reader), targetType, options);
|
||||
|
||||
/// <summary>
|
||||
/// Deserialize from an <see cref="AsyncPipeReaderInput"/> with streaming pipeline parallelism.
|
||||
/// The producer thread feeds chunk data via <see cref="AsyncPipeReaderInput.Feed"/>,
|
||||
/// while this method (running on a background thread) deserializes incrementally,
|
||||
/// blocking on <see cref="System.Threading.ManualResetEventSlim"/> when data is exhausted.
|
||||
///
|
||||
/// <para>Use these overloads for SignalR <c>AsyncSegment</c>-style chunked streaming,
|
||||
/// NamedPipe IPC, FileStream, or any other transport that produces an
|
||||
/// <see cref="AsyncPipeReaderInput"/>. The internal <see cref="AsyncPipeReaderInputAdapter"/>
|
||||
/// struct satisfies the JIT-specialization constraint of the generic deserialization path
|
||||
/// without exposing a value-type wrapper to the public API.</para>
|
||||
/// </summary>
|
||||
public static T? Deserialize<T>(AsyncPipeReaderInput input)
|
||||
=> Deserialize<T>(input, AcBinarySerializerOptions.Default);
|
||||
|
||||
/// <inheritdoc cref="Deserialize{T}(AsyncPipeReaderInput)"/>
|
||||
public static T? Deserialize<T>(AsyncPipeReaderInput input, AcBinarySerializerOptions options)
|
||||
=> DeserializeSequence<T, AsyncPipeReaderInputAdapter>(new AsyncPipeReaderInputAdapter(input), typeof(T), options);
|
||||
|
||||
/// <inheritdoc cref="Deserialize{T}(AsyncPipeReaderInput)"/>
|
||||
public static object? Deserialize(AsyncPipeReaderInput input, Type targetType, AcBinarySerializerOptions options)
|
||||
=> DeserializeSequence<AsyncPipeReaderInputAdapter>(new AsyncPipeReaderInputAdapter(input), targetType, options);
|
||||
|
||||
/// <summary>
|
||||
/// Internal: Deserialize with any TInput (multi-segment or other future input types).
|
||||
/// </summary>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,72 @@
|
|||
using System;
|
||||
using System.IO.Pipelines;
|
||||
using System.IO.Pipes;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace AyCode.Core.Serializers.Binaries;
|
||||
|
||||
public static partial class AcBinarySerializer
|
||||
{
|
||||
/// <summary>
|
||||
/// Serializes <paramref name="value"/> to a Windows / Linux named-pipe server using the
|
||||
/// AsyncSegment chunked wire format (<c>[201][UINT16 size][data]</c> per chunk via
|
||||
/// <see cref="AsyncPipeWriterOutput"/>). One-shot client lifecycle: connects, streams
|
||||
/// chunk-by-chunk with per-chunk <c>FlushAsync</c> for real producer/consumer overlap,
|
||||
/// completes, disposes.
|
||||
///
|
||||
/// <para><b>Wire format</b>: same chunked AsyncSegment framing as SignalR uses internally —
|
||||
/// unified format across all transports per ADR-0003 §9. The <c>+5 bytes/chunk</c> overhead
|
||||
/// (~0.1% at 4 KB chunks, ~2% at 256-byte test chunks) is the cost of a single shared wire
|
||||
/// format and a single framing-strip implementation (in <see cref="AsyncPipeReaderInput.Feed"/>).</para>
|
||||
///
|
||||
/// <para><b>Streaming behavior</b>: every <c>BufferWriterChunkSize</c>-sized chunk is
|
||||
/// flushed to the pipe immediately (per-chunk <c>SyncAwaitFlush</c>). Consumer can start
|
||||
/// reading WHILE producer is still serializing — true pipeline parallelism even on small
|
||||
/// payloads (no buffer-accumulation-then-flush behavior).</para>
|
||||
///
|
||||
/// <para><b>Cross-platform</b>: NamedPipe BCL APIs work on Windows and Linux (Unix-domain-
|
||||
/// socket-backed on Linux). WASM throws <see cref="PlatformNotSupportedException"/> per
|
||||
/// BCL contract.</para>
|
||||
///
|
||||
/// <para><b>For custom connection management</b> (multiple writes, custom NamedPipe options,
|
||||
/// pre-existing connection): use
|
||||
/// <see cref="Serialize{T}(T, PipeWriter, AcBinarySerializerOptions, bool, TimeSpan?)"/>
|
||||
/// directly on a <see cref="PipeWriter"/> wrapping your own
|
||||
/// <see cref="NamedPipeClientStream"/>.</para>
|
||||
/// </summary>
|
||||
/// <param name="pipeName">Pipe name to connect to.</param>
|
||||
/// <param name="value">Object to serialize.</param>
|
||||
/// <param name="options">Serializer options. Defaults to <see cref="AcBinarySerializerOptions.Default"/>.
|
||||
/// <c>BufferWriterChunkSize</c> controls the wire chunk size (max 65535).</param>
|
||||
/// <param name="serverName">NamedPipe server host. Defaults to <c>"."</c> (local machine).</param>
|
||||
/// <param name="ct">Cancellation token. For connect-timeout, pass the token of a
|
||||
/// <c>new CancellationTokenSource(timeout)</c> — uniform cancellation/timeout pattern.</param>
|
||||
public static async Task SerializeToNamedPipeAsync<T>(
|
||||
string pipeName,
|
||||
T value,
|
||||
AcBinarySerializerOptions? options = null,
|
||||
string serverName = ".",
|
||||
CancellationToken ct = default)
|
||||
{
|
||||
if (pipeName is null) throw new ArgumentNullException(nameof(pipeName));
|
||||
if (serverName is null) throw new ArgumentNullException(nameof(serverName));
|
||||
|
||||
await using var pipeClient = new NamedPipeClientStream(serverName, pipeName, PipeDirection.Out, System.IO.Pipes.PipeOptions.Asynchronous);
|
||||
|
||||
await pipeClient.ConnectAsync(ct).ConfigureAwait(false);
|
||||
|
||||
var pipeWriter = PipeWriter.Create(pipeClient);
|
||||
try
|
||||
{
|
||||
// PipeWriter overload — chunked AsyncSegment framing via AsyncPipeWriterOutput.
|
||||
// Receiver's AsyncPipeReaderInput.Feed strips framing internally; unified wire format
|
||||
// across all transports per ADR-0003 §9.
|
||||
Serialize(value, pipeWriter, options ?? AcBinarySerializerOptions.Default);
|
||||
}
|
||||
finally
|
||||
{
|
||||
await pipeWriter.CompleteAsync().ConfigureAwait(false);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -153,9 +153,9 @@ public sealed class AcBinarySerializerOptions : AcSerializerOptions
|
|||
/// Using 4 KB for a memory-backed writer causes ~16× more Grow() calls than necessary (2048 vs 128 for 8 MB).
|
||||
/// The default (64 KB) is the safe choice — suboptimal on network streams but never catastrophic.</para>
|
||||
///
|
||||
/// Default: 65536 (64 KB)
|
||||
/// Default: 65535 (UINT16 max — wire-format invariant for AsyncSegment chunked framing).
|
||||
/// </summary>
|
||||
public int BufferWriterChunkSize { get; set; } = 65536;
|
||||
public int BufferWriterChunkSize { get; set; } = 65535;
|
||||
|
||||
/// <summary>
|
||||
/// Optional property-level filter invoked before metadata registration and serialization.
|
||||
|
|
|
|||
|
|
@ -0,0 +1,398 @@
|
|||
using System;
|
||||
using System.Buffers;
|
||||
using System.Diagnostics;
|
||||
using System.IO;
|
||||
using System.Runtime.CompilerServices;
|
||||
using System.Threading;
|
||||
|
||||
namespace AyCode.Core.Serializers.Binaries;
|
||||
|
||||
/// <summary>
|
||||
/// Thread-safe, single-producer/single-consumer byte buffer for chunked streaming deserialization.
|
||||
///
|
||||
/// Self-contained <see cref="IBinaryInputBase"/> implementation that consolidates the legacy
|
||||
/// <c>SegmentBufferReader</c> + <c>SegmentBufferReaderInput</c> pair into a single sealed class
|
||||
/// (see ADR-0003 at <c>docs/adr/0003-acbinary-streaming-receive-architecture.md</c>).
|
||||
///
|
||||
/// The naming mirrors the send-side <c>AsyncPipeWriterOutput</c> primitive — both follow the
|
||||
/// .NET BCL convention for type-level <c>Async</c> prefix (<c>AsyncEnumerable</c>,
|
||||
/// <c>IAsyncDisposable</c>, <c>AsyncLocal<T></c>, ...).
|
||||
///
|
||||
/// <para>Usage modes:</para>
|
||||
/// <list type="bullet">
|
||||
/// <item><b>Push (Feed-API)</b>: producer thread calls <see cref="Feed"/> with chunk bytes
|
||||
/// (typical for SignalR <c>TryParseChunkData</c>).</item>
|
||||
/// <item><b>Pull (DrainFromAsync extension)</b>: helper drains a
|
||||
/// <see cref="System.IO.Pipelines.PipeReader"/> into the input via repeated
|
||||
/// <see cref="Feed"/> calls (typical for NamedPipe / FileStream).</item>
|
||||
/// </list>
|
||||
///
|
||||
/// Backed by a single contiguous <c>byte[]</c> from <see cref="ArrayPool{T}"/>. Positions reset
|
||||
/// to 0 when the consumer catches up (sliding-window cycling — peak buffer memory bounded by
|
||||
/// chunk size, NOT message size). Grow is the absolute last resort and practically never fires
|
||||
/// under typical chunk-aligned write patterns.
|
||||
///
|
||||
/// <para>Thread-safety:</para>
|
||||
/// <list type="bullet">
|
||||
/// <item><c>_writePos</c>: written by producer (<c>Volatile.Write</c>), read by consumer
|
||||
/// (<c>Volatile.Read</c>).</item>
|
||||
/// <item><c>_readPos</c>: written by consumer (<c>Volatile.Write</c>), read by producer
|
||||
/// (<c>Volatile.Read</c>).</item>
|
||||
/// <item>Reset-to-0 happens in <see cref="Feed"/> only when <c>_readPos == _writePos > 0</c>
|
||||
/// (consumer is blocked in <see cref="TryAdvanceSegment"/>, not actively reading).</item>
|
||||
/// <item>Grow happens in <see cref="Feed"/> only when reset is insufficient (consumer is
|
||||
/// behind). The current buffer is kept alive in <c>_oldBuffers</c> until <see cref="Dispose"/>;
|
||||
/// <see cref="TryAdvanceSegment"/> picks up the new buffer when called.</item>
|
||||
/// </list>
|
||||
///
|
||||
/// <para>Recommended <c>initialCapacity</c>: <c>options.BufferWriterChunkSize × 2</c> —
|
||||
/// two-chunks-worth of headroom plus reset-to-0 cycling reuses the same buffer for the message's
|
||||
/// lifetime regardless of total payload size. SignalR-context: 8 KB (4 KB chunk × 2);
|
||||
/// standalone-context: 128 KB (64 KB chunk × 2).</para>
|
||||
/// </summary>
|
||||
public sealed class AsyncPipeReaderInput : IBinaryInputBase, IDisposable
|
||||
{
|
||||
private byte[] _buffer;
|
||||
private int _writePos;
|
||||
private int _readPos; // consumer reports consumed position here
|
||||
private bool _completed;
|
||||
|
||||
// Framing state machine — parses [201][UINT16 LE size][data] frames + [202] CHUNK_END.
|
||||
// [200] CHUNK_START tolerated (skipped). Wire format matches AsyncPipeWriterOutput's output;
|
||||
// identical parsing logic to AcBinaryHubProtocol.TryParseChunkData but stream-stateful
|
||||
// across Feed(span) boundaries (the SignalR side has ReadOnlySequence<byte> with rewind;
|
||||
// we get arbitrary spans).
|
||||
private const byte ChunkStart = 200; // CHUNK_START — tolerated, skipped
|
||||
private const byte ChunkData = 201; // CHUNK_DATA — header followed by [UINT16 size][data]
|
||||
private const byte ChunkEnd = 202; // CHUNK_END — signals end-of-stream
|
||||
|
||||
private FramingState _framingState = FramingState.AwaitingHeader;
|
||||
private int _sizeAccumulator; // partial UINT16 size during AwaitingSizeLow/High
|
||||
private int _bytesRemainingInChunk; // remaining data bytes in current CHUNK_DATA frame
|
||||
|
||||
private enum FramingState : byte
|
||||
{
|
||||
AwaitingHeader, // expect [201] / [202] / [200]
|
||||
AwaitingSizeLow, // have [201], expect UINT16 LE low byte
|
||||
AwaitingSizeHigh, // have low, expect UINT16 LE high byte
|
||||
AwaitingData, // expect _bytesRemainingInChunk data bytes
|
||||
Done // saw [202], ignore further bytes
|
||||
}
|
||||
|
||||
private readonly ManualResetEventSlim _dataAvailable;
|
||||
|
||||
/// <summary>
|
||||
/// Static diagnostic sink for state-machine transitions, framing-strip events, and buffer
|
||||
/// state changes. <c>null</c> by default — set from tests / diagnostic tooling to capture
|
||||
/// trace output. Only effective in DEBUG builds: <see cref="EmitDiagnostic"/> is
|
||||
/// <see cref="ConditionalAttribute"/>-decorated, so call sites are completely removed in
|
||||
/// RELEASE (zero runtime cost — string-interpolation arguments at call sites are NOT
|
||||
/// evaluated either). The field stays as a single null-valued static reference in RELEASE
|
||||
/// — negligible memory cost in exchange for clean analyzer state and simpler code.
|
||||
/// </summary>
|
||||
public static Action<string>? DiagnosticLog;
|
||||
|
||||
[Conditional("DEBUG")]
|
||||
private static void EmitDiagnostic(string message) => DiagnosticLog?.Invoke(message);
|
||||
|
||||
// After grow: ALL old buffers are kept alive until Dispose.
|
||||
// Cannot return them to the pool mid-operation because the consumer thread
|
||||
// may hold a local reference to any of them (its local 'buffer' variable is
|
||||
// only refreshed inside TryAdvanceSegment — and the consumer may lag multiple grows behind).
|
||||
private byte[][]? _oldBuffers;
|
||||
private int _oldBufferCount;
|
||||
|
||||
/// <summary>
|
||||
/// Creates a new <see cref="AsyncPipeReaderInput"/> with the specified initial capacity.
|
||||
/// Recommended: <c>options.BufferWriterChunkSize × 2</c> (e.g. 8 KB for the SignalR-context
|
||||
/// 4 KB chunk size, 128 KB for the standalone 64 KB default).
|
||||
/// </summary>
|
||||
/// <param name="initialCapacity">Initial buffer size. Rounded up by ArrayPool.</param>
|
||||
/// <param name="logger">Optional logger for diagnostic output (Debug level). Only emits in DEBUG builds.</param>
|
||||
public AsyncPipeReaderInput(int initialCapacity)
|
||||
{
|
||||
if (initialCapacity <= 0) throw new ArgumentOutOfRangeException(nameof(initialCapacity));
|
||||
|
||||
_buffer = ArrayPool<byte>.Shared.Rent(initialCapacity);
|
||||
_dataAvailable = new ManualResetEventSlim(false);
|
||||
}
|
||||
|
||||
// --- Producer API (push) ---
|
||||
|
||||
/// <summary>
|
||||
/// Feeds raw chunked-wire bytes (any combination of complete or partial
|
||||
/// <c>[201][UINT16 LE size][data]</c> frames, optional <c>[200]</c> CHUNK_START prefix,
|
||||
/// trailing <c>[202]</c> CHUNK_END). Strips framing internally; only the unwrapped
|
||||
/// <c>data</c> bytes land in the consumer-visible buffer.
|
||||
///
|
||||
/// <para>State is preserved across <c>Feed</c> calls — partial frame headers, mid-size
|
||||
/// boundaries, and mid-data boundaries all resume correctly on the next call.</para>
|
||||
///
|
||||
/// <para>Wire format identical to <see cref="AsyncPipeWriterOutput"/> output and to
|
||||
/// SignalR's AsyncSegment chunked frame format. Unified across all transports per ADR-0003.</para>
|
||||
///
|
||||
/// <para>On <c>[202]</c>, sets the completion flag and signals waiting consumers — equivalent
|
||||
/// to an external <see cref="Complete"/> call. Bytes after <c>[202]</c> are ignored.</para>
|
||||
/// </summary>
|
||||
public void Feed(ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.IsEmpty) return;
|
||||
|
||||
var i = 0;
|
||||
while (i < data.Length)
|
||||
{
|
||||
switch (_framingState)
|
||||
{
|
||||
case FramingState.Done:
|
||||
EmitDiagnostic($"Feed: bytes after CHUNK_END ignored, count={data.Length - i}");
|
||||
return;
|
||||
|
||||
case FramingState.AwaitingHeader:
|
||||
{
|
||||
var marker = data[i++];
|
||||
if (marker == ChunkData)
|
||||
{
|
||||
_framingState = FramingState.AwaitingSizeLow;
|
||||
}
|
||||
else if (marker == ChunkStart)
|
||||
{
|
||||
// Tolerated (skip); stay in AwaitingHeader for next [201]/[202]
|
||||
EmitDiagnostic("Feed: CHUNK_START [200] tolerated/skipped");
|
||||
}
|
||||
else if (marker == ChunkEnd)
|
||||
{
|
||||
EmitDiagnostic("Feed: CHUNK_END [202] received, signaling completion");
|
||||
_framingState = FramingState.Done;
|
||||
Volatile.Write(ref _completed, true);
|
||||
_dataAvailable.Set();
|
||||
return;
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new InvalidDataException(
|
||||
$"Unexpected framing marker byte 0x{marker:X2} ({marker}) — expected 200/201/202.");
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case FramingState.AwaitingSizeLow:
|
||||
_sizeAccumulator = data[i++];
|
||||
_framingState = FramingState.AwaitingSizeHigh;
|
||||
break;
|
||||
|
||||
case FramingState.AwaitingSizeHigh:
|
||||
_sizeAccumulator |= data[i++] << 8;
|
||||
_bytesRemainingInChunk = _sizeAccumulator;
|
||||
_sizeAccumulator = 0;
|
||||
_framingState = FramingState.AwaitingData;
|
||||
EmitDiagnostic($"Feed: chunk header parsed, dataSize={_bytesRemainingInChunk}");
|
||||
if (_bytesRemainingInChunk == 0)
|
||||
{
|
||||
// Empty CHUNK_DATA frame — go back to header state immediately
|
||||
_framingState = FramingState.AwaitingHeader;
|
||||
}
|
||||
break;
|
||||
|
||||
case FramingState.AwaitingData:
|
||||
{
|
||||
var available = data.Length - i;
|
||||
var toAppend = Math.Min(_bytesRemainingInChunk, available);
|
||||
if (toAppend > 0)
|
||||
{
|
||||
AppendToBuffer(data.Slice(i, toAppend));
|
||||
i += toAppend;
|
||||
_bytesRemainingInChunk -= toAppend;
|
||||
}
|
||||
if (_bytesRemainingInChunk == 0)
|
||||
{
|
||||
_framingState = FramingState.AwaitingHeader;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Appends unwrapped data bytes to the internal buffer with sliding-window cycling
|
||||
/// (reset to 0 when consumer has caught up) and grow-as-last-resort. Signals the consumer.
|
||||
/// </summary>
|
||||
private void AppendToBuffer(ReadOnlySpan<byte> data)
|
||||
{
|
||||
// If consumer consumed everything → reset positions to 0 (sliding-window cycling)
|
||||
var rp = Volatile.Read(ref _readPos);
|
||||
if (rp > 0 && rp == _writePos)
|
||||
{
|
||||
EmitDiagnostic($"AppendToBuffer reset positions rp={rp} wp={_writePos} → 0");
|
||||
_writePos = 0;
|
||||
Volatile.Write(ref _readPos, 0);
|
||||
}
|
||||
|
||||
// Grow if buffer can't fit the new data (rare — consumer typically keeps pace)
|
||||
if (_writePos + data.Length > _buffer.Length)
|
||||
{
|
||||
EmitDiagnostic($"AppendToBuffer grow required wp={_writePos} dataLen={data.Length} bufLen={_buffer.Length}");
|
||||
Grow(_writePos + data.Length);
|
||||
}
|
||||
|
||||
data.CopyTo(_buffer.AsSpan(_writePos));
|
||||
var newWritePos = _writePos + data.Length;
|
||||
|
||||
Volatile.Write(ref _writePos, newWritePos);
|
||||
_dataAvailable.Set();
|
||||
|
||||
EmitDiagnostic($"AppendToBuffer dataLen={data.Length} newWritePos={newWritePos} readPos={Volatile.Read(ref _readPos)}");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Signals that no more data will be written. The consumer's <see cref="TryAdvanceSegment"/>
|
||||
/// will return <c>false</c> once all buffered data is consumed.
|
||||
/// </summary>
|
||||
public void Complete()
|
||||
{
|
||||
Volatile.Write(ref _completed, true);
|
||||
_dataAvailable.Set();
|
||||
|
||||
EmitDiagnostic($"Complete writePos={Volatile.Read(ref _writePos)} readPos={Volatile.Read(ref _readPos)}");
|
||||
}
|
||||
|
||||
// --- IBinaryInputBase (consumer thread) ---
|
||||
|
||||
/// <summary>
|
||||
/// Provides the initial buffer state. Called once before deserialization begins.
|
||||
/// </summary>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public void Initialize(out byte[] buffer, out int position, out int bufferLength)
|
||||
{
|
||||
buffer = _buffer;
|
||||
position = 0;
|
||||
bufferLength = Volatile.Read(ref _writePos);
|
||||
|
||||
EmitDiagnostic($"Initialize bufferLength={bufferLength}");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called when the deserialization context needs more bytes than currently available.
|
||||
/// Reports consumed position to the producer, then blocks via <see cref="ManualResetEventSlim"/>
|
||||
/// until enough data arrives or <see cref="Complete"/> is called.
|
||||
///
|
||||
/// <para>Uses the double-check pattern to avoid missed signals:
|
||||
/// <c>Reset() → check → if still not enough, Wait()</c>.</para>
|
||||
///
|
||||
/// <para>No cross-boundary handling needed — the buffer is a single contiguous <c>byte[]</c>.
|
||||
/// After grow, re-reads <c>_buffer</c> to get the new (larger) array. After position reset
|
||||
/// (readPos/writePos set to 0 by producer), re-reads adjusted positions.</para>
|
||||
/// </summary>
|
||||
[MethodImpl(MethodImplOptions.NoInlining)]
|
||||
public bool TryAdvanceSegment(ref byte[] buffer, ref int position, ref int bufferLength, int needed)
|
||||
{
|
||||
EmitDiagnostic($"TryAdvanceSegment enter position={position} bufferLength={bufferLength} needed={needed}");
|
||||
|
||||
// Report how far we've consumed — enables producer to reset positions to 0
|
||||
Volatile.Write(ref _readPos, position);
|
||||
|
||||
while (true)
|
||||
{
|
||||
// Re-read positions (may have been reset to 0 by producer)
|
||||
int rp = Volatile.Read(ref _readPos);
|
||||
int wp = Volatile.Read(ref _writePos);
|
||||
|
||||
if (wp - rp >= needed)
|
||||
{
|
||||
buffer = _buffer; // may be new array after grow
|
||||
position = rp; // may be 0 after reset
|
||||
bufferLength = wp;
|
||||
|
||||
EmitDiagnostic($"TryAdvanceSegment return true (data available) position={position} bufferLength={bufferLength}");
|
||||
return true;
|
||||
}
|
||||
|
||||
if (Volatile.Read(ref _completed))
|
||||
{
|
||||
// No more data will arrive. Return whatever is left.
|
||||
if (wp > rp)
|
||||
{
|
||||
buffer = _buffer;
|
||||
position = rp;
|
||||
bufferLength = wp;
|
||||
|
||||
EmitDiagnostic($"TryAdvanceSegment return true (completed, partial) position={position} bufferLength={bufferLength}");
|
||||
return true;
|
||||
}
|
||||
|
||||
EmitDiagnostic("TryAdvanceSegment return false (completed, empty)");
|
||||
return false;
|
||||
}
|
||||
|
||||
// Double-check pattern: Reset → verify → Wait
|
||||
_dataAvailable.Reset();
|
||||
|
||||
rp = Volatile.Read(ref _readPos);
|
||||
wp = Volatile.Read(ref _writePos);
|
||||
|
||||
if (wp - rp >= needed || Volatile.Read(ref _completed)) continue;
|
||||
|
||||
EmitDiagnostic($"TryAdvanceSegment waiting (wp={wp} rp={rp} needed={needed})");
|
||||
|
||||
_dataAvailable.Wait();
|
||||
EmitDiagnostic("TryAdvanceSegment woke up");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// No-op. Buffer lifecycle is managed by <see cref="Dispose"/>.
|
||||
/// </summary>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public void Release() { }
|
||||
|
||||
// --- Lifecycle ---
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
// Return all old buffers accumulated from grows
|
||||
if (_oldBuffers != null)
|
||||
{
|
||||
for (var i = 0; i < _oldBufferCount; i++)
|
||||
{
|
||||
ArrayPool<byte>.Shared.Return(_oldBuffers[i]);
|
||||
_oldBuffers[i] = null!;
|
||||
}
|
||||
|
||||
_oldBuffers = null;
|
||||
_oldBufferCount = 0;
|
||||
}
|
||||
|
||||
// Return current buffer
|
||||
if (_buffer != null!)
|
||||
{
|
||||
ArrayPool<byte>.Shared.Return(_buffer);
|
||||
_buffer = null!;
|
||||
}
|
||||
|
||||
_dataAvailable.Dispose();
|
||||
}
|
||||
|
||||
// --- Internal ---
|
||||
|
||||
private void Grow(int requiredCapacity)
|
||||
{
|
||||
var newSize = Math.Max(_buffer.Length * 2, requiredCapacity);
|
||||
var newBuffer = ArrayPool<byte>.Shared.Rent(newSize);
|
||||
|
||||
Buffer.BlockCopy(_buffer, 0, newBuffer, 0, _writePos);
|
||||
|
||||
// Keep the current buffer alive — consumer's local 'buffer' variable may still reference it
|
||||
// (consumer may lag multiple grows behind before calling TryAdvanceSegment).
|
||||
// Returning old buffers to the pool mid-operation would cause use-after-free
|
||||
// if another pool user overwrites them while the consumer is still reading.
|
||||
|
||||
if (_oldBuffers == null) _oldBuffers = new byte[4][];
|
||||
else if (_oldBufferCount == _oldBuffers.Length) Array.Resize(ref _oldBuffers, _oldBuffers.Length * 2);
|
||||
|
||||
_oldBuffers[_oldBufferCount++] = _buffer;
|
||||
_buffer = newBuffer;
|
||||
}
|
||||
|
||||
// --- Diagnostic logging (DEBUG builds only — zero cost in RELEASE) ---
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
using System.Runtime.CompilerServices;
|
||||
|
||||
namespace AyCode.Core.Serializers.Binaries;
|
||||
|
||||
/// <summary>
|
||||
/// Internal value-type adapter wrapping an <see cref="AsyncPipeReaderInput"/> for the
|
||||
/// <see cref="AcBinaryDeserializer"/>'s generic <c>DeserializeSequence<TInput></c> path.
|
||||
///
|
||||
/// <para><b>Why this exists</b>: the deserializer's generic infrastructure
|
||||
/// (<c>DeserializeSequence<TInput></c>, <c>TypeReaderTable<TInput></c>,
|
||||
/// <c>DeserializationContextPool<TInput></c>, and 14+ chained generic methods) constrains
|
||||
/// <c>TInput</c> to <c>struct, IBinaryInputBase</c> for JIT specialization (eliminates virtual
|
||||
/// dispatch in the rare-path <see cref="IBinaryInputBase.TryAdvanceSegment"/> calls).
|
||||
/// <see cref="AsyncPipeReaderInput"/> is intentionally a class (per ADR-0003 — sliding-window
|
||||
/// buffer state cannot live in a struct due to copy semantics during interface-method
|
||||
/// dispatch). This adapter bridges the two: a stack-allocated value-type wrapping the class
|
||||
/// reference, satisfying the constraint with zero heap cost.</para>
|
||||
///
|
||||
/// <para><b>Not user-facing API</b>: callers use the public
|
||||
/// <c>AcBinaryDeserializer.Deserialize<T>(AsyncPipeReaderInput, ...)</c> overloads which
|
||||
/// construct the adapter internally. The adapter is <c>internal</c> — visible only within the
|
||||
/// <c>AyCode.Core</c> assembly.</para>
|
||||
///
|
||||
/// <para><b>Per-call allocation</b>: zero heap. The adapter is a <c>readonly struct</c> living
|
||||
/// on the stack; the only heap allocation per <c>Deserialize</c> call is the user's
|
||||
/// <see cref="AsyncPipeReaderInput"/> instance (created once per streaming session, reused
|
||||
/// across all bytes of the message via sliding-window cycling).</para>
|
||||
///
|
||||
/// <para><b>Why not relax the deserializer's struct constraint?</b> 16+ generic declarations
|
||||
/// rely on it (<c>DeserializeSequence</c>, <c>TypeReaderTable</c>,
|
||||
/// <c>DeserializationContextPool</c> chain). Relaxing would require a wide refactor with risk
|
||||
/// to the existing perf-critical struct paths (<c>SegmentBufferReaderInput</c>,
|
||||
/// <c>ArrayBinaryInput</c>, <c>SequenceBinaryInput</c>). The ~2 ns per call savings is
|
||||
/// sub-picosecond per byte at typical chunk sizes — not worth the blast radius.</para>
|
||||
/// </summary>
|
||||
internal readonly struct AsyncPipeReaderInputAdapter : IBinaryInputBase
|
||||
{
|
||||
private readonly AsyncPipeReaderInput _input;
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public AsyncPipeReaderInputAdapter(AsyncPipeReaderInput input) => _input = input;
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public void Initialize(out byte[] buffer, out int position, out int bufferLength)
|
||||
=> _input.Initialize(out buffer, out position, out bufferLength);
|
||||
|
||||
[MethodImpl(MethodImplOptions.NoInlining)]
|
||||
public bool TryAdvanceSegment(ref byte[] buffer, ref int position, ref int bufferLength, int needed)
|
||||
=> _input.TryAdvanceSegment(ref buffer, ref position, ref bufferLength, needed);
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public void Release() => _input.Release();
|
||||
}
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
using System;
|
||||
using System.IO.Pipelines;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace AyCode.Core.Serializers.Binaries;
|
||||
|
||||
/// <summary>
|
||||
/// Extension methods for populating <see cref="AsyncPipeReaderInput"/> from
|
||||
/// <see cref="System.IO.Pipelines.PipeReader"/>-backed transports (NamedPipe, FileStream,
|
||||
/// custom pipe sources).
|
||||
///
|
||||
/// Lives in a separate file from the core class so <see cref="AsyncPipeReaderInput"/> does not
|
||||
/// import <c>System.IO.Pipelines</c> in its primary surface — the optional pull-mode is visible
|
||||
/// at use-sites (per ADR-0003 Decision §3 at <c>docs/adr/0003-acbinary-streaming-receive-architecture.md</c>).
|
||||
/// </summary>
|
||||
public static class AsyncPipeReaderInputExtensions
|
||||
{
|
||||
/// <summary>
|
||||
/// Drains a <see cref="PipeReader"/> end-to-end into the <see cref="AsyncPipeReaderInput"/>:
|
||||
/// calls <see cref="AsyncPipeReaderInput.Feed"/> on each segment and
|
||||
/// <see cref="AsyncPipeReaderInput.Complete"/> when the pipe completes.
|
||||
///
|
||||
/// <para>Typical usage: NamedPipe IPC and FileStream-via-PipeReader transports schedule this
|
||||
/// on a background task while the deserialization context reads from the same input on
|
||||
/// another thread.</para>
|
||||
///
|
||||
/// <para><see cref="AsyncPipeReaderInput.Complete"/> is invoked in a <c>finally</c> block —
|
||||
/// ensures the consumer always wakes up even if the pipe read throws or the operation is
|
||||
/// cancelled. Exceptions (including <see cref="OperationCanceledException"/>) propagate to
|
||||
/// the caller after <c>Complete</c> runs.</para>
|
||||
/// </summary>
|
||||
/// <param name="input">The receive-side input to feed.</param>
|
||||
/// <param name="reader">The pipe reader to drain.</param>
|
||||
/// <param name="cancellationToken">Optional cancellation token.</param>
|
||||
/// <exception cref="ArgumentNullException">If <paramref name="input"/> or <paramref name="reader"/> is <c>null</c>.</exception>
|
||||
public static async Task DrainFromAsync(
|
||||
this AsyncPipeReaderInput input,
|
||||
PipeReader reader,
|
||||
CancellationToken cancellationToken = default)
|
||||
{
|
||||
if (input is null) throw new ArgumentNullException(nameof(input));
|
||||
if (reader is null) throw new ArgumentNullException(nameof(reader));
|
||||
|
||||
try
|
||||
{
|
||||
while (true)
|
||||
{
|
||||
var result = await reader.ReadAsync(cancellationToken).ConfigureAwait(false);
|
||||
|
||||
foreach (var segment in result.Buffer)
|
||||
input.Feed(segment.Span);
|
||||
|
||||
reader.AdvanceTo(result.Buffer.End);
|
||||
|
||||
if (result.IsCompleted) break;
|
||||
}
|
||||
}
|
||||
finally
|
||||
{
|
||||
input.Complete();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -49,6 +49,19 @@ When a pattern appears in 2+ consumer projects:
|
|||
|
||||
Framework design follows **"write the base first, derive the specific later"** — when planning a new feature, first consider whether the generic part fits the framework, only then implement consumer-specific derived code.
|
||||
|
||||
### Class prefix — framework-only mandate
|
||||
|
||||
**Workspace-wide convention** — every framework-typed repo (`@repo.type = "framework"` in `.github/copilot-instructions.md`) MUST prefix its public types with a stable repo-family prefix:
|
||||
|
||||
| Family | Prefix | Example types |
|
||||
|---------------|--------|-----------------------------------------------------|
|
||||
| AyCode.* | `Ac` | `AcDalBase`, `AcBinarySerializer`, `IAcUserDbSet` |
|
||||
| Mango.Nop.* | `Mg` | `MgEntityBase`, `MgDbTableBase`, `MgOrderDto` |
|
||||
|
||||
**Product/Consumer repos** (`@repo.type = "product"` or `"consumer"`) **MUST NOT** prefix their domain types. Product types are concrete derivations of framework abstractions and use natural domain names (e.g. `Order`, `ShippingItem`, `OrderItemPallet` — no product-specific prefix).
|
||||
|
||||
**Why:** the prefix marks code as **framework-bequeathed**. When a product class is named `Order`, an LLM (or human) reading consuming code immediately knows: this is product-domain concrete code, not framework abstraction. Cross-repo reference patterns become self-documenting: `AcDalBase<Order>` reads as "framework abstraction parameterized by a product concrete type" without needing to look up either side.
|
||||
|
||||
## Dependency Graph
|
||||
|
||||
```
|
||||
|
|
@ -90,6 +103,36 @@ AyCode.Services ← AyCode.Services.Server
|
|||
### Server Extensions
|
||||
- **AyCode.Core.Server**, **AyCode.Interfaces.Server**, **AyCode.Entities.Server**, **AyCode.Models.Server** — Server-only additions that don't belong in shared code.
|
||||
|
||||
## Project Layout — Shared/Server Split
|
||||
|
||||
**Workspace-wide convention** — applies to AyCode.* family, Mango.Nop.* family, FruitBank, FruitBankHybridApp, and all future projects in this workspace.
|
||||
|
||||
Each logical project gets one or two physical projects, named by suffix:
|
||||
|
||||
| Suffix | Contains | Visibility |
|
||||
|--------------|-------------------------------------------------------------------|--------------|
|
||||
| `Foo` | Code shared by client and server (DTOs, interfaces, common logic) | Both |
|
||||
| `Foo.Server` | Server-only code (data access, hosting, server-side services) | Server only |
|
||||
| `Foo.Client` | RARE — only when truly client-only code exists | Client only |
|
||||
|
||||
**Examples already in this repo:** `AyCode.Core` + `AyCode.Core.Server`, `AyCode.Interfaces` + `AyCode.Interfaces.Server`, `AyCode.Entities` + `AyCode.Entities.Server`, `AyCode.Models` + `AyCode.Models.Server`, `AyCode.Services` + `AyCode.Services.Server`. **No `.Client` projects exist by default.**
|
||||
|
||||
### Why no symmetric `.Client` by default
|
||||
|
||||
- Most code is genuinely shared (DTOs, common logic). A separate `.Client` project for the rare client-only case keeps the workspace project count manageable.
|
||||
- Project-count discipline: doubling every shared project to a `.Client` + `.Server` pair would balloon the workspace without proportional benefit.
|
||||
- Create `.Client` only when client-only code exists that doesn't belong in the shared `Foo` (rare).
|
||||
|
||||
### Why no security risk in shared code seeing server context
|
||||
|
||||
- The boundary is **directional**: server may reference shared code; client must not reference `.Server` code.
|
||||
- Enforcement is at the **project-graph + DLL reference level**, not the suffix. A client project that accidentally references `Foo.Server` will fail to build — manual review catches the rest.
|
||||
- A server seeing the shared (client-relevant) code is fine — the shared code is, by design, safe to expose to both sides.
|
||||
|
||||
### When a new project is added
|
||||
|
||||
Default: **one shared `Foo` project**. Add `Foo.Server` only when server-only code accumulates that genuinely cannot live shared. Add `Foo.Client` only in the rare case described above.
|
||||
|
||||
## Serialization Architecture
|
||||
|
||||
Three serializers share a common infrastructure but serve different goals:
|
||||
|
|
|
|||
|
|
@ -6,6 +6,10 @@
|
|||
- **Interfaces:** Standard `I` prefix + `Ac` (e.g., `IAcDbContextBase`, `IAcUserDbSetBase`).
|
||||
- **Extensions:** `{Domain}Extensions.cs` (e.g., `StringExtensions`, `CollectionExtensions`, `AcDbSessionExtension`).
|
||||
- **Test bases:** `Ac{Domain}TestBase` or `AcBase_{TestName}` for inherited test methods.
|
||||
- **Folder names — plural** (workspace-wide): all source folder names use plural form to avoid type-vs-folder namespace collisions (e.g. `Serializers/AcBinarySerializer.cs`, NOT `Serializer/AcBinarySerializer.cs`). The plural form gives the namespace its own identity, separate from any single type within it.
|
||||
- **English-only identifiers** (workspace-wide): all type names, member names, namespaces, file names, and folder names use English. Native-language identifiers (Hungarian or otherwise) are not allowed even for product/consumer-specific types — keep code readable for any LLM or human collaborator regardless of native language.
|
||||
|
||||
> **Workspace-wide note:** the framework-only **class prefix mandate** (`Ac` for AyCode.*, `Mg` for Mango.Nop.*; product/consumer repos un-prefixed) is an architectural rule — see `ARCHITECTURE.md#class-prefix--framework-only-mandate`. The first bullet above is the AyCode.Core-specific instance of that rule.
|
||||
|
||||
## Patterns
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue