Introduce the 5-proc snapshot-based Persistence interface that will
replace the legacy 13-proc one. Both coexist on `ReliabilityManager` so
phase 2 can migrate protocol ops one at a time without breaking existing
callers.
New file:
- sds/types/persistence_v2.nim — `PersistenceV2` type with
saveChannelMeta / updateHistory / loadChannel / dropChannel /
setRetrievalHint. `noOpPersistenceV2()` default. Doc-comments capture
the atomicity pairing (meta save + history update issued back-to-back
under the channel lock) and the non-fatal failure policy from PLAN §8.
Modified:
- sds/types/reliability_manager.nim — adds `persistenceV2: PersistenceV2`
field alongside `persistence`; constructor takes both, both default to
no-op.
- sds.nim — `newReliabilityManager` plumbs the new optional parameter.
- AGENTS.md / CLAUDE.md — GitNexus index re-indexed after phase 0 +
phase 1 additions; symbol counts updated by `npx gitnexus analyze`.
No call site uses the new interface yet — that's phase 2. All existing
tests still pass against the legacy interface.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* feat: make Persistence interface async
The 14 Persistence proc fields now return Future[...] with
{.async: (raises: []), gcsafe.}, allowing real I/O backends (SQLite,
encrypted file, network) to suspend rather than block the Chronos event
loop the manager runs on.
Propagates through:
- ReliabilityManager.lock: system.Lock -> chronos.AsyncLock. Acquired
across awaits cleanly; matches the single-threaded Chronos worker the
FFI uses. Multi-OS-thread use is now explicitly the caller's
responsibility.
- sds_utils + sds.nim public API procs (wrapOutgoingMessage,
unwrapReceivedMessage, markDependenciesMet, setCallbacks,
resetReliabilityManager, cleanup, ensureChannel, removeChannel, the
getter snapshots, etc.) are now async.
- FFI request handlers in library/sds_thread/... await the new API.
- Tests converted via an asyncTest template that wraps each test body
in an async proc; setup/teardown use waitFor for their single async
call (ensureChannel / cleanup).
Lock scope is preserved exactly: the same call sites that held the
kernel Lock today hold AsyncLock now -- no new locking added.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* refactor: drop asyncSpawn, add asyncSetup/asyncTeardown
Three asyncSpawn usages removed:
- sds.nim startPeriodicTasks: stored the periodic-task futures on
ReliabilityManager (new field `periodicTasks: seq[FutureBase]`) so
cleanup can cancel them on shutdown instead of leaking the loops
against a cleared manager.
- library/sds_thread/sds_thread.nim: fireSync moved BEFORE processing,
then `await SdsThreadRequest.process(...)` instead of asyncSpawn'ing
it. Aligns the worker with the SP-channel + lock assumption that
there are no concurrent requests; caller throughput is unchanged
because the caller only waits for receipt (fireSync), not processing.
- tests TestBus repair callback: replaced asyncSpawn(deliverExcept...)
with an explicit pending-delivery queue drained by `bus.drain()`.
Integration tests no longer rely on `sleepAsync(10ms)` to let
spawned deliveries finish — they await drain instead.
Tests also pick up an asyncSetup/asyncTeardown pair (tests/async_unittest.nim)
so suite fixtures can `await` directly. All `waitFor` in setup/teardown
blocks is gone; only the top-level asyncTest wrapper still uses waitFor
(once, to drive the async proc to completion).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* Correctly propagate error hidden by new async move
* Correctly handle future cancellation exceptions, +some housekeeping
* Apply suggestion from @Ivansete-status
Co-authored-by: Ivan FB <128452529+Ivansete-status@users.noreply.github.com>
* Stylistics, async default implication addressed, nph style run
* Remove leaking CancelledFuture from public facing + as a consequence it is tuneled into handling CatchableError everywhere
---------
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: Ivan FB <128452529+Ivansete-status@users.noreply.github.com>
