From 0109ea57045b7d85367cd201d288a7683e20319c Mon Sep 17 00:00:00 2001
From: Steve Slaven <bpk@hoopajoo.net>
Date: Mon, 2 Nov 2009 16:06:08 -0800
Subject: Keep track of length as long as possible so we don't have to loop
 over chunk lengths or rejoin our string all the time


diff --git a/FuseArchive/ChunkBuffer.py b/FuseArchive/ChunkBuffer.py
index 89d468e..575f5aa 100644
--- a/FuseArchive/ChunkBuffer.py
+++ b/FuseArchive/ChunkBuffer.py
@@ -5,11 +5,14 @@ import logging
 class ChunkBuffer:
     def __init__( self, data = '' ):
         logging.debug( "Creating chunkbuffer: %s" % data )
+        self.l = len( data )
         self.chunk = [ data ]
 
     def append( self, s ):
+        self.l += len( s )
         self.chunk.append( s )
 
+    # Note: replace doesn't effect length so we don't update it
     def replace( self, buf, start, end ):
         # We make a string of our chunk, then create a new list of the 3
         # strings, the start, new chunk, and remaining chunk
@@ -18,17 +21,11 @@ class ChunkBuffer:
         self.chunk = [ s[ :start ], buf[ :l ], s[ end: ] ]
 
     def length( self ):
-        if len( self.chunk ) > 5:
-            self._simplify()
-
-        l = 0;
-        for c in self.chunk:
-            l += len( c )
-
-        return l
+        return self.l
 
     def truncate( self, l ):
         s = ''.join( self.chunk )
+        self.l = l
         self.chunk = [ s[ :l ] ]
 
     def _simplify( self ):
-- 
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