Implement self-describing chunked protocol ([201][UINT16][data], [202] end) for AsyncSegment mode, enabling true zero-copy, pipeline-parallel serialization/deserialization of large arguments in SignalR.
- AsyncPipeWriterOutput now reserves a 3-byte header per chunk and supports two backpressure modes.
- AcBinaryHubProtocol routes streamable arguments through WriteMessageChunked, with chunk accumulation and background deserialization on the receiver.
- Logging now uses ILogger; documentation and wire format details updated.
- Consumer code updated to use new mode and diagnostics.
- Improves throughput, memory usage, and maintainability for large payloads.
Refactored binary protocol to support three explicit serialization/transport strategies via BinaryProtocolMode: Bytes (byte[]), Segment (zerocopy PipeWriter), and AsyncSegment (async PipeWriter with pipeline parallelism). Updated AcBinaryHubProtocol and AyCodeBinaryHubProtocol to select serialization/deserialization paths based on mode. Improved documentation and XML comments to describe each mode's behavior and performance. DI registration now explicitly selects AsyncSegment mode for AyCodeBinaryHubProtocol. Default remains Bytes mode. These changes clarify protocol mechanics and enable better performance tuning.
Implements segment-level streaming for SignalR binary protocol via new AsyncPipeWriterOutput and PipeReaderBinaryInput types, enabling chunked serialization/deserialization directly over PipeWriter/PipeReader. Adds BinaryProtocolMode enum to select between standard and streaming modes. Updates protocol classes and documentation. Lays groundwork for future async streaming support.
Loretta