39 lines
856 B
Python
39 lines
856 B
Python
# -*- coding: utf-8 -*-
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'''
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Thread-safe in-memory cache using LRU.
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The shove psuedo-URL for a memory cache is:
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memlru://
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'''
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import copy
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import threading
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from shove import synchronized
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from shove.cache.simplelru import SimpleLRUCache
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class MemoryLRUCache(SimpleLRUCache):
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'''Thread-safe in-memory cache backend using LRU.'''
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def __init__(self, engine, **kw):
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super(MemoryLRUCache, self).__init__(engine, **kw)
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self._lock = threading.Condition()
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@synchronized
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def __setitem__(self, key, value):
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super(MemoryLRUCache, self).__setitem__(key, value)
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@synchronized
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def __getitem__(self, key):
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return copy.deepcopy(super(MemoryLRUCache, self).__getitem__(key))
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@synchronized
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def __delitem__(self, key):
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super(MemoryLRUCache, self).__delitem__(key)
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__all__ = ['MemoryLRUCache']
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