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Don't spin paper clear loop on non-clearing ticks 

Not sure what exactly happened but it seemed clears weren't working in
some cases without this, also there's no point in spinning the simulated
clearing loop if we're handling a non-clearing tick type.
multi_client_order_mgt
Tyler Goodlet 2022-09-19 16:11:41 -04:00
parent 48ff4859e6
commit 30bce42c0b
1 changed files with 23 additions and 8 deletions
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31
piker/clearing/_paper_engine.py
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@ -61,13 +61,13 @@ log = get_logger(__name__)
class PaperBoi(Struct): class PaperBoi(Struct):
""" '''
Emulates a broker order client providing the same API and Emulates a broker order client providing approximately the same API
delivering an order-event response stream but with methods for and delivering an order-event response stream but with methods for
triggering desired events based on forward testing engine triggering desired events based on forward testing engine
requirements. requirements (eg open, closed, fill msgs).
""" '''
broker: str broker: str
ems_trades_stream: tractor.MsgStream ems_trades_stream: tractor.MsgStream
@ -336,9 +336,10 @@ async def simulate_fills(
return tick_price >= our_price return tick_price >= our_price
match tick: match tick:
# on an ask queue tick, only clear buy entries
case { case {
'price': tick_price, 'price': tick_price,
# 'type': ('ask' | 'trade' | 'last'),
'type': 'ask', 'type': 'ask',
}: }:
client.last_ask = ( client.last_ask = (
@ -351,9 +352,9 @@ async def simulate_fills(
itertools.repeat(buy_on_ask) itertools.repeat(buy_on_ask)
) )
# on a bid queue tick, only clear sell entries
case { case {
'price': tick_price, 'price': tick_price,
# 'type': ('bid' | 'trade' | 'last'),
'type': 'bid', 'type': 'bid',
}: }:
client.last_bid = ( client.last_bid = (
@ -366,6 +367,10 @@ async def simulate_fills(
itertools.repeat(sell_on_bid) itertools.repeat(sell_on_bid)
) )
# TODO: fix this block, though it definitely
# costs a lot more CPU-wise
# - doesn't seem like clears are happening still on
# "resting" limit orders?
case { case {
'price': tick_price, 'price': tick_price,
'type': ('trade' | 'last'), 'type': ('trade' | 'last'),
@ -390,6 +395,13 @@ async def simulate_fills(
iter_entries = interleave() iter_entries = interleave()
# NOTE: all other (non-clearable) tick event types
# - we don't want to sping the simulated clear loop
# below unecessarily and further don't want to pop
# simulated live orders prematurely.
case _:
continue
# iterate all potentially clearable book prices # iterate all potentially clearable book prices
# in FIFO order per side. # in FIFO order per side.
for order_info, pred in iter_entries: for order_info, pred in iter_entries:
@ -532,7 +544,10 @@ async def trades_dialogue(
# TODO: load paper positions per broker from .toml config file # TODO: load paper positions per broker from .toml config file
# and pass as symbol to position data mapping: ``dict[str, dict]`` # and pass as symbol to position data mapping: ``dict[str, dict]``
await ctx.started((pp_msgs, ['paper'])) await ctx.started((
pp_msgs,
['paper'],
))
async with ( async with (
ctx.open_stream() as ems_stream, ctx.open_stream() as ems_stream,