Adjust all `.tsp` imports to use new sub-pkg

Also toss in a poll loop around the `hist_shm: ShmArray` backfill
read-check in the `.data.allocate_persisten_feed()`  init to cope with
possible racy-ness from the increased tsdb history loading concurrency
now implemented.

piker/data/feed.py

@@ -69,7 +69,7 @@ from .validate import (
     FeedInit,
     validate_backend,
 )
-from .history import (
+from ..tsp import (
     manage_history,
 )
 from .ingest import get_ingestormod
@@ -407,6 +407,12 @@ async def allocate_persistent_feed(
         rt_shm.array['time'][1] = ts + 1
 
     elif hist_shm.array.size == 0:
+        for i in range(100):
+            await trio.sleep(0.1)
+            if hist_shm.array.size > 0:
+                break
+        else:
+            await tractor.pause()
             raise RuntimeError(f'History (1m) Shm for {fqme} is empty!?')
 
     # wait the spawning parent task to register its subscriber

piker/storage/nativedb.py

@@ -56,8 +56,6 @@ from datetime import datetime
 from pathlib import Path
 import time
 
-# from bidict import bidict
-# import tractor
 import numpy as np
 import polars as pl
 from pendulum import (
@@ -65,10 +63,10 @@ from pendulum import (
 )
 
 from piker import config
+from piker import tsp
 from piker.data import (
     def_iohlcv_fields,
     ShmArray,
-    tsp,
 )
 from piker.log import get_logger
 from . import TimeseriesNotFound

piker/ui/_dataviz.py

@@ -49,7 +49,7 @@ from ..data._formatters import (
     OHLCBarsAsCurveFmtr,  # OHLC converted to line
     StepCurveFmtr,  # "step" curve (like for vlm)
 )
-from ..data.tsp import (
+from ..tsp import (
     slice_from_time,
 )
 from ._ohlc import (

piker/ui/_fsp.py

@@ -181,7 +181,10 @@ async def open_fsp_sidepane(
 async def open_fsp_actor_cluster(
     names: list[str] = ['fsp_0', 'fsp_1'],
 
-) -> AsyncGenerator[int, dict[str, tractor.Portal]]:
+) -> AsyncGenerator[
+    int,
+    dict[str, tractor.Portal]
+]:
 
     from tractor._clustering import open_actor_cluster
 

piker/ui/view_mode.py

@@ -31,7 +31,7 @@ import pendulum
 import pyqtgraph as pg
 
 from piker.types import Struct
-from ..data.tsp import slice_from_time
+from ..tsp import slice_from_time
 from ..log import get_logger
 from ..toolz import Profiler