swactor/crates/engine
Zachery Aaron Shores-Chmielewski 553347a8f7 feat(myelin): enforce actor-owned control flow
Architecture enforcement:
- Install a repository-owned rustc wrapper for ordinary cargo check,
  build, and test commands. Resolve compiler item identities so renamed
  imports and helper wrappers cannot hide spawning, timing, blocking,
  polling, thread, or runtime-driving capabilities.
- Define the execution-owner crates and reject dependencies from those
  substrates back into Myelin policy. Add compile-pass and compile-fail
  contracts for actor helpers, execution owners, test waits, forbidden
  capabilities, suppression attempts, and owner dependency inversions.

Execution ownership:
- Add engine-owned actor timers with cancellation and generation identity,
  then migrate lifecycle deadlines and protocol ticks off application
  tasks. Keep networking, process output, telemetry, and blocking provider
  calls in their approved I/O substrates.
- Move process spawn, wait, signal, Unix listener, and output-following
  mechanics into swactor-process. Isolate Vast.ai blocking HTTP mechanics
  behind its adapter while actors retain retry, recovery, and provisioning
  decisions.

Myelin control flow:
- Rework manual control, worker lifecycle, provisioning, provider recovery,
  job deployment, distribution, edge orchestration, and shutdown as actor
  state transitions and typed effects. Preserve durable provider adoption
  and command outcomes across graceful and abrupt restarts.
- Replace controller loops and timer-forwarding tasks with actor messages;
  leave substrate tasks as cancellable observation streams with no durable
  policy state.

Properties and resource ownership:
- Add deterministic engine and component properties, a stateful mock-VastAI
  lifecycle model, persisted regression cases, controlled fault injection,
  and a bounded nightly workflow covering restart and teardown behavior.
- Terminate reply observers, cancel telemetry collectors, bound dashboard
  projections, and release child observers, file descriptors, process
  records, and inode-verified Unix sockets on every terminal path.

Verified with the compiler-policy contracts, 105 Myelin library tests, 32
swactor-process tests, telemetry cancellation contracts, randomized
stateful restart cases, cargo check, and formatting checks.
2026-08-20 01:46:11 +04:00
..
src feat(myelin): enforce actor-owned control flow 2026-08-20 01:46:11 +04:00
tests feat(myelin): enforce actor-owned control flow 2026-08-20 01:46:11 +04:00
Cargo.toml feat(myelin): enforce actor-owned control flow 2026-08-20 01:46:11 +04:00
ENGINE_SPEC.md feat(myelin): enforce actor-owned control flow 2026-08-20 01:46:11 +04:00