| #include "starboard/types.h" | |
| // Copyright 2013 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. | |
| #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_VERSION_H_ | |
| #define NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_VERSION_H_ | |
| namespace disk_cache { | |
| // Short rules helping to think about data upgrades within Simple Cache: | |
| // * ALL changes of on-disk data format, backward-compatible or not, | |
| // forward-compatible or not, require updating the |kSimpleVersion|. | |
| // * All cache Upgrades are performed on backend start, must be finished | |
| // before the new backend starts processing any incoming operations. | |
| // * If the Upgrade is not implemented for transition from | |
| // |kSimpleVersion - 1| then the whole cache directory will be cleared. | |
| // * Dropping cache data on disk or some of its parts can be a valid way to | |
| // Upgrade. | |
| const uint32_t kLastCompatSparseVersion = 7; | |
| const uint32_t kSimpleVersion = 8; | |
| // The version of the entry file(s) as written to disk. Must be updated iff the | |
| // entry format changes with the overall backend version update. | |
| const uint32_t kSimpleEntryVersionOnDisk = 5; | |
| } // namespace disk_cache | |
| #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_VERSION_H_ |