1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/browser/chromeos/drive/remove_stale_cache_files.h" 6 7 #include "base/logging.h" 8 #include "chrome/browser/chromeos/drive/drive.pb.h" 9 #include "chrome/browser/chromeos/drive/file_cache.h" 10 #include "chrome/browser/chromeos/drive/resource_metadata.h" 11 12 namespace drive { 13 namespace internal { 14 15 void RemoveStaleCacheFiles(FileCache* cache, 16 ResourceMetadata* resource_metadata) { 17 scoped_ptr<ResourceMetadata::Iterator> it = resource_metadata->GetIterator(); 18 for (; !it->IsAtEnd(); it->Advance()) { 19 const ResourceEntry& entry = it->GetValue(); 20 const FileCacheEntry& cache_state = 21 entry.file_specific_info().cache_state(); 22 // Stale = not dirty but the MD5 does not match. 23 if (!cache_state.is_dirty() && 24 cache_state.md5() != entry.file_specific_info().md5()) { 25 FileError error = cache->Remove(it->GetID()); 26 LOG_IF(WARNING, error != FILE_ERROR_OK) 27 << "Failed to remove a stale cache file. resource_id: " 28 << it->GetID(); 29 } 30 } 31 } 32 33 } // namespace internal 34 } // namespace drive 35
