Open data feed in ems main entrypoint

piker/clearing/_client.py

@@ -181,6 +181,7 @@ async def maybe_open_emsd(
 
     async with tractor.find_actor('pikerd') as portal:
         assert portal
+
         name = await portal.run(
             spawn_emsd,
             brokername=brokername,

piker/clearing/_ems.py

@@ -40,7 +40,11 @@ log = get_logger(__name__)
 
 
 # TODO: numba all of this
-def mk_check(trigger_price, known_last) -> Callable[[float, float], bool]:
+def mk_check(
+    trigger_price: float,
+    known_last: float,
+    action: str,
+) -> Callable[[float, float], bool]:
     """Create a predicate for given ``exec_price`` based on last known
     price, ``known_last``.
 
@@ -230,6 +234,7 @@ async def execute_triggers(
 
 async def exec_loop(
     ctx: tractor.Context,
+    feed: 'Feed',  # noqa
     broker: str,
     symbol: str,
     _exec_mode: str,
@@ -239,11 +244,6 @@ async def exec_loop(
     to brokers.
 
     """
-    async with data.open_feed(
-        broker,
-        [symbol],
-        loglevel='info',
-    ) as feed:
 
     # TODO: get initial price quote from target broker
     first_quote = await feed.receive()
@@ -556,7 +556,7 @@ async def process_order_cmds(
                 # price received from the feed, instead of being
                 # like every other shitty tina platform that makes
                 # the user choose the predicate operator.
-                pred = mk_check(trigger_price, last)
+                pred = mk_check(trigger_price, last, action)
 
                 tick_slap: float = 5
                 min_tick = feed.symbols[sym].tick_size
@@ -646,11 +646,17 @@ async def _emsd_main(
         async with trio.open_nursery() as n:
 
             # TODO: eventually support N-brokers
+            async with data.open_feed(
+                broker,
+                [symbol],
+                loglevel='info',
+            ) as feed:
 
                 # start the condition scan loop
                 quote, feed, client = await n.start(
                     exec_loop,
                     ctx,
+                    feed,
                     broker,
                     symbol,
                     _mode,