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>
