Move DrainFromAsync to tests, add in-memory benchmarks
- Moved AsyncPipeReaderInputExtensions.DrainFromAsync from the main framework to test-only assembly; no longer public API.
- Removed AcBinaryDeserializer.DeserializeFromPipeReaderAsync<T> from public API; tests now inline drain+deserialize logic.
- Added AcBinaryInMemoryPipeBenchmark and AcBinaryInMemoryRawByteArrayBenchmark to complete 2x2 transport × wire-format benchmark matrix.
- Refactored benchmark runner for interactive menu, settings, and CLI parsing.
- Expanded XML docs for AsyncPipeReaderInput and AsyncPipeWriterOutput to clarify push-pattern and real-world usage.
- Updated BINARY_ASYNCPIPE_TODO.md and related docs to reflect these changes.
Centralize pipe chunk size and fix buffer reset race
Centralized pipe chunk size config for all AcBinary pipe benchmarks, ensuring app-level and kernel buffer sizes stay in sync. Updated AsyncPipeReaderInput.MessageDone to atomically reset both _readPos and _writePos, preventing stale buffer reads. Improved comments and applied AggressiveOptimization to key methods. Adjusted AcquireChunk to ensure wire chunk fits exactly, avoiding kernel fragmentation. Updated related tests and documentation.
Refactor AcBinary NamedPipe to long-lived multi-message mode
Refactored the AcBinary NamedPipe benchmark to use a single long-lived AsyncPipeReaderInput in multi-message mode, with one background drain task and synchronous deserialization per message. Buffer recycling is now signaled by the consumer via a new MessageDone() method, called in the deserializer's finally block, preventing producer-consumer races. Added IsCompleted property to AsyncPipeReaderInput. Increased release-mode benchmark iteration counts. Updated documentation and comments to reflect the new architecture and rationale.
Refactor AcBinary streaming: multi-message protocol
- Renamed framing flags to multiMessage for clarity in AsyncPipeReaderInput/AsyncPipeWriterOutput.
- Multi-message mode ([202]=end-of-message) now auto-resets input for reuse; session end is explicit.
- Updated framing state machine, buffer cycling, and sentinel logic.
- Revised all serializer/deserializer entry points and tests for new protocol.
- Expanded docs and XML comments to detail wire format and protocol constraints.
- Updated benchmarks and tests for new streaming API and multi-message behavior.
- Documented protocol limits and added security issue/TODO for type-name deserialization in SignalR binary protocol.
Separate raw and framed streaming in AcBinarySerializer
Refactored AcBinarySerializer and AsyncPipeWriterOutput to support both raw (headerless) and multiplexed/framed ([201][UINT16][data]) streaming wire formats, controlled by a new flag and explicit APIs. Updated AsyncPipeReaderInput and AcBinaryDeserializer to match, with new constructor options and documentation. Expanded tests for both modes and added runtime type detection for flush strategy safety. Minor refactoring and doc improvements throughout.
Loretta