Refactored AcBinaryHubProtocol and AyCodeBinaryHubProtocol to remove the VarUInt length prefix for raw byte[] arguments. Now, the protocol writes a tag (0x44) followed directly by the raw bytes, with argLength implying the payload size. Updated read logic to match: on detecting the tag, the code skips it and returns the remaining bytes as the payload. Updated documentation to clarify the new fast-path, protocol roles, and AcBinary detection. Set BufferWriterChunkSize to 4096 for SignalR in the base protocol for better alignment with Kestrel. Marked the related issue as resolved.
- Rewrote SequenceBinaryInput for lazy TryGet iteration (no segment array allocation), zero-copy access to segment backing arrays, and efficient cross-boundary reads using a reusable ArrayPool scratch buffer.
- Added Release() to IBinaryInputBase; now always called after deserialization to return scratch buffer.
- BufferWriterChunkSize is now mutable; set to 4096 for SignalR protocol for better pipe alignment.
- Added and updated documentation: detailed input buffer lifecycle, cross-boundary handling, and new BINARY_ISSUES.md and SIGNALR_ISSUES.md for known limitations and planned optimizations.
- No breaking API changes; improves performance, memory usage, and diagnostics for multi-segment binary deserialization.
Loretta