mirror of
https://github.com/freqtrade/freqtrade.git
synced 2024-11-10 10:21:59 +00:00
20 lines
580 B
Python
20 lines
580 B
Python
from datetime import datetime, timezone
|
|
|
|
from cachetools import TTLCache
|
|
|
|
|
|
class PeriodicCache(TTLCache):
|
|
"""
|
|
Special cache that expires at "straight" times
|
|
A timer with ttl of 3600 (1h) will expire at every full hour (:00).
|
|
"""
|
|
|
|
def __init__(self, maxsize, ttl, getsizeof=None):
|
|
def local_timer():
|
|
ts = datetime.now(timezone.utc).timestamp()
|
|
offset = (ts % ttl)
|
|
return ts - offset
|
|
|
|
# Init with smlight offset
|
|
super().__init__(maxsize=maxsize, ttl=ttl - 1e-5, timer=local_timer, getsizeof=getsizeof)
|