Introduces SharedBackend Protocol for cross-process state sharing:
- InMemoryBackend: default single-process storage
- ManagerBackend: multiprocessing.Manager for local multi-process
- RedisBackend: distributed deployments with TTL auto-GC
Adds ProcessPoolExecutor support for CPU-bound handlers:
- worker.py: worker process entry point
- stream_pump.py: cpu_bound handler dispatch
- Config: backend and process_pool sections in organism.yaml
ContextBuffer and ThreadRegistry now accept optional backend
parameter while maintaining full backward compatibility.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Major refactor of the message pump architecture:
- Replace bus.py with stream_pump.py using aiostream for composable
stream processing with natural fan-out via flatmap
- Add to_id field to MessageState for explicit routing
- Fix routing to use to_id.class format (e.g., "greeter.greeting")
- Generate XSD schemas from xmlified payload classes
- Fix xmlable imports (absolute -> relative) and parse_element ctx
New features:
- handlers/hello.py: Sample Greeting/GreetingResponse handler
- config/organism.yaml: Sample organism configuration
- 41 tests (31 unit + 10 integration) all passing
Schema changes:
- envelope.xsd: Allow any namespace payloads (##other -> ##any)
Dependencies added to pyproject.toml:
- aiostream>=0.5 (core dependency)
- pyhumps, termcolor (for xmlable)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
