X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=p2pool%2Futil%2Fmemoize.py;h=bf0fafc1f8d2d980b019c05b85399b0dc2abcaf9;hb=7bf9752d97c844daa2fa3dd8aab710acf9187e60;hp=4199ccb36fa849e6b80fc9b3d9985be6d664e38e;hpb=b016b6b522286e4675b82b9c4206784937977f3e;p=p2pool.git

diff --git a/p2pool/util/memoize.py b/p2pool/util/memoize.py
index 4199ccb..bf0fafc 100644
--- a/p2pool/util/memoize.py
+++ b/p2pool/util/memoize.py
@@ -37,3 +37,31 @@ def memoize_with_backing(backing, has_inverses=set()):
 
 def memoize(f):
     return memoize_with_backing({})(f)
+
+
+class cdict(dict):
+    def __init__(self, func):
+        dict.__init__(self)
+        self._func = func
+    
+    def __missing__(self, key):
+        value = self._func(key)
+        self[key] = value
+        return value
+
+def fast_memoize_single_arg(func):
+    return cdict(func).__getitem__
+
+class cdict2(dict):
+    def __init__(self, func):
+        dict.__init__(self)
+        self._func = func
+    
+    def __missing__(self, key):
+        value = self._func(*key)
+        self[key] = value
+        return value
+
+def fast_memoize_multiple_args(func):
+    f = cdict2(func).__getitem__
+    return lambda *args: f(args)