From: José Fonseca <jose.r.fonseca@gmail.com>
Date: Fri, 16 Mar 2012 15:40:31 +0000 (+0000)
Subject: Speed up call hashing.
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=bf34127d818fb7da8bb82921496c23f1746889f3;p=apitrace

Speed up call hashing.
---

diff --git a/scripts/unpickle.py b/scripts/unpickle.py
index fd7989b..98e2c30 100755
--- a/scripts/unpickle.py
+++ b/scripts/unpickle.py
@@ -43,6 +43,7 @@ class Call:
 
     def __init__(self, callTuple):
         self.no, self.functionName, self.args, self.ret = callTuple
+        self._hash = None
 
     def __str__(self):
         s = self.functionName
@@ -61,10 +62,11 @@ class Call:
             self.ret == other.ret
 
     def __hash__(self):
-        # XXX: hack due to unhashable types
-        #return hash(self.functionName) ^ hash(tuple(self.args)) ^ hash(self.ret)
-        return hash(self.functionName) ^ hash(repr(self.args)) ^ hash(repr(self.ret))
-
+        if self._hash is None:
+            # XXX: hack due to unhashable types
+            #self._hash = hash(self.functionName) ^ hash(tuple(self.args)) ^ hash(self.ret)
+            self._hash = hash(self.functionName) ^ hash(repr(self.args)) ^ hash(repr(self.ret))
+        return self._hash
 
 
 class Unpickler: