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Add CachingDict dict subclass to dirnode.py

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kevan 2009-07-05 14:23:45 -07:00
parent c678e8c77a
commit 903005a528
1 changed files with 17 additions and 0 deletions
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17
src/allmydata/dirnode.py
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@ -21,6 +21,23 @@ from allmydata.util.netstring import netstring, split_netstring
from allmydata.uri import NewDirectoryURI, LiteralFileURI, from_string from allmydata.uri import NewDirectoryURI, LiteralFileURI, from_string
from pycryptopp.cipher.aes import AES from pycryptopp.cipher.aes import AES
class CachingDict(dict):
def __init__(self, *args):
super(CachingDict, self).__init__(*args)
self.serialized = {}
def __setitem__(self, k, v):
super(CachingDict, self).__setitem__(k, v)
self.serialized[k] = None
def get_both_items(self, k):
return (self.serialized.setdefault(k, None),
super(CachingDict, self).__getitem__(k))
def set_both_items(self, key, serialized, t):
self.serialized[key] = serialized
super(CachingDict, self).__setitem__(key, t)
class Deleter: class Deleter:
def __init__(self, node, name, must_exist=True): def __init__(self, node, name, must_exist=True):
self.node = node self.node = node