100% mutation kill score, 12 thread-safety fixes, and ASGI context restoration

42 files · 2,078+ · 211-

6 files changed

provider.py Identity-comparison refactor: uses `is` where object identity is intended to catch is/== mutations
provider.py Metrics provider identity comparison hardened
test_external_provider_compat.py External provider compatibility tests for OTel SDK interop (new file)
test_otel_integration.py OTel integration tests updated for full mutation coverage
test_trace_context_sync.py Trace context sync tests expanded (188 lines)
test_tracing_edge_cases.py Tracing edge-case tests updated

Identity-comparison refactor in provider detection to catch is/== mutations (uses is where object identity is intended) qualify internal
2 files
- provider.py
- provider.py
Added external provider compatibility tests for OTel SDK interop qualify internal
1 file
- test_external_provider_compat.py

13 files changed

setup.py Atomicity gaps in provider state transitions fixed; shutdown_logging() sentinel flag now resets correctly on exception
runtime.py Concurrent access patterns hardened
provider.py Concurrent access patterns in metrics provider hardened
fallback.py Metrics fallback thread safety improvements
resilience.py Resilience subsystem thread safety improvements
sampling.py Sampling subsystem thread safety improvements
backpressure.py `_validate_signal()` added; replaces silent fallback-to-'logs' with explicit ValueError for unknown signal names
health.py `_VALID_SIGNALS` frozenset added; `_known_signal()` now raises rather than silently returning 'logs'
propagation.py Propagation thread safety improvements
pii.py PII subsystem thread safety improvements
test_code_review_regressions_4.py Fourth batch of code review regression tests covering thread-safety fixes
test_code_review_regressions_4b.py Supplemental regression tests for thread-safety edge cases
test_thread_safety.py Concurrency thread-safety tests expanded

Fixed atomicity gaps in provider state transitions — state now transitions atomically rather than in separable steps remediate behavioral
1 file
- setup.py
Fixed reconfigure_telemetry() guard: blocks handler reinstall after OTel providers are shut down to prevent use-after-shutdown remediate behavioral
1 file
- setup.py
Fixed shutdown_logging() state leak: sentinel flag now resets correctly even when provider.shutdown() raises an exception (was left in inconsistent state on exception) remediate behavioral
1 file
- setup.py
Hardened concurrent access patterns in metrics and tracing providers harden internal
2 files
- provider.py
- runtime.py
Added _validate_signal() in backpressure.py replacing silent fallback-to-’logs’ with an explicit ValueError for unknown signal names harden behavioral
1 file
- backpressure.py
Added _VALID_SIGNALS frozenset in health.py and changed _known_signal() to raise rather than silently return ’logs’ (improves mutation detectability) harden behavioral
1 file
- health.py

3 files changed

middleware.py Captures pre-request context; restores it after request rather than clearing, fixing nested ASGI call correctness
test_middleware_and_setup.py ASGI middleware tests updated for context restoration behavior
test_middleware_cancellation.py ASGI cancellation tests updated

ASGI middleware now captures pre_request_ctx = get_context() before binding request context harden behavioral
1 file
- middleware.py
Replaced clear_context() in cleanup path with restore_context(pre_request_ctx) — correctly restores prior context state rather than clearing it, which matters for nested ASGI calls remediate behavioral
1 file
- middleware.py

1 file changed

Fixed unquote() applied to header key in config.py (was only applied to values) remediate internal
1 file
- config.py

2 files changed

ARCHITECTURE.md Documents `reconfigure_telemetry()` constraint: provider-changing OTel reconfiguration requires process restart once real providers are installed
README.md README updated to reflect current architecture and constraints

Documented reconfigure_telemetry() constraint: provider-changing OTel reconfiguration requires process restart once real OTel providers are installed specify architectural
2 files
- ARCHITECTURE.md
- README.md