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comparison mercurial/util.py @ 9097:431462bd8478

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fix memory usage of revlog caches by limiting cache size [issue1639]
author Matt Mackall <mpm@selenic.com>
date Thu, 09 Jul 2009 17:10:07 -0500
parents 8ec39725d966
children bbc78cb1bf15 7116494c48ab
comparison
equal deleted inserted replaced
9096:47bc92755b95 9097:431462bd8478
109 return cache[arg] 109 return cache[arg]
110 else: 110 else:
111 def f(*args): 111 def f(*args):
112 if args not in cache: 112 if args not in cache:
113 cache[args] = func(*args) 113 cache[args] = func(*args)
114 return cache[args]
115
116 return f
117
118 def lrucachefunc(func):
119 '''cache most recent results of function calls'''
120 cache = {}
121 order = []
122 if func.func_code.co_argcount == 1:
123 def f(arg):
124 if arg not in cache:
125 if len(cache) > 20:
126 del cache[order.pop(0)]
127 cache[arg] = func(arg)
128 else:
129 order.remove(arg)
130 order.append(arg)
131 return cache[arg]
132 else:
133 def f(*args):
134 if args not in cache:
135 if len(cache) > 20:
136 del cache[order.pop(0)]
137 cache[args] = func(*args)
138 else:
139 order.remove(args)
140 order.append(args)
114 return cache[args] 141 return cache[args]
115 142
116 return f 143 return f
117 144
118 class propertycache(object): 145 class propertycache(object):