First half of the `brokerd` split: a new per-provider
data-feed-only daemon-actor `datad.<broker>` to (soon) host
all `validate._eps['datad']` eps (live quotes, history
loading, symbology search) leaving `brokerd` for live order
ctl only. Purely additive; nothing routes through it yet.
Deats,
- new `piker.data._daemon` mod mirroring the
`.brokers._daemon` conventions (and the `samplerd`
sub-daemon precedent):
- `_setup_persistent_datad()` lifetime fixture owning the
actor-global `_FeedsBus` alloc.
- `datad_init()` building `enable_modules` from the
backend's `_datad_mods` (falling back to
`__enable_modules__` for not-yet-split backends) and
copying `_spawn_kwargs` (critical for `ib`'s
`infect_asyncio`).
- `spawn_datad()`/`maybe_spawn_datad()` wrapping
`Services` + `maybe_spawn_daemon()`.
- add `piker.data._daemon` to `_root_modules` so `pikerd`
can run `spawn_datad()` requests.
- re-export the spawn eps from `piker.service`.
- add `test_datad_spawn` verifying actor boot + service
registration via `ensure_service('datad.kraken')`.
Note the `Services`-based impl style deliberately mirrors
`spawn_brokerd()` so the eventual `tractor.hilevel`
`ServiceMngr` port (see the `service_mng_to_tractor`
branch's d8c21d44 prep work) lands symmetrically on both.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Prompt-IO: ai/prompt-io/claude/20260610T171142Z_119d2c04_prompt_io.md
Gud Boi