Extensions Docs Server: Apps samples page

chrome/common/extensions/docs/server2/memcache_file_system.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from file_system import FileSystem
 from future import Future
 import appengine_memcache as memcache
 
 class MemcacheFileSystem(FileSystem):
   """FileSystem implementation which memcaches the results of Read.
@@ skipping 22 matching lines @@
     """
     result = {}
     uncached = []
     for path in paths:
       cached_result = self._memcache.Get(path,
                                          memcache.MEMCACHE_FILE_SYSTEM_READ)
       if cached_result is None:
         uncached.append(path)
         continue
       data, version = cached_result
-      if self.Stat(path).version > version:
+      if self._file_system.CheckStat(self.Stat(path).version, version):

[not at google - send to devlin, 2012/08/02 13:27:48]

yeah, needs to be != (and besides, I don't think that CheckStat should exist,
it's simpler to just write !=)

[cduvall, 2012/08/02 23:20:01]

Done.

         self._memcache.Delete(path, memcache.MEMCACHE_FILE_SYSTEM_READ)
         uncached.append(path)
         continue
       result[path] = data
     new_items = self._file_system.Read(uncached, binary=binary).Get()
     for item in new_items:
       version = self.Stat(item).version
       value = new_items[item]
       self._memcache.Set(item,
                          (value, version),
                          memcache.MEMCACHE_FILE_SYSTEM_READ)
       result[item] = value
     return Future(value=result)