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SickRage/lib/cachecontrol/caches/redis_cache.py

47 lines
1.1 KiB
Python

from __future__ import division
from datetime import datetime
try:
from cPickle import loads, dumps
except ImportError: # Python 3.x
from pickle import loads, dumps
def total_seconds(td):
"""Python 2.6 compatability"""
if hasattr(td, 'total_seconds'):
return td.total_seconds()
ms = td.microseconds
secs = (td.seconds + td.days * 24 * 3600)
return (ms + secs * 10**6) / 10**6
class RedisCache(object):
def __init__(self, conn):
self.conn = conn
def get(self, key):
val = self.conn.get(key)
if val:
return loads(val)
return None
def set(self, key, value, expires=None):
if not expires:
self.conn.set(key, dumps(value))
else:
expires = expires - datetime.now()
self.conn.setex(key, total_seconds(expires), value)
def delete(self, key):
self.conn.delete(key)
def clear(self):
"""Helper for clearing all the keys in a database. Use with
caution!"""
for key in self.conn.keys():
self.conn.delete(key)