| // Copyright (c) 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_ENTRY_FORMAT_H_ |
| #define NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_ |
| |
| |
| #include "base/basictypes.h" |
| #include "base/port.h" |
| #include "net/base/net_export.h" |
| |
| namespace base { |
| class Time; |
| } |
| |
| namespace disk_cache { |
| |
| const uint64 kSimpleInitialMagicNumber = GG_UINT64_C(0xfcfb6d1ba7725c30); |
| const uint64 kSimpleFinalMagicNumber = GG_UINT64_C(0xf4fa6f45970d41d8); |
| |
| // A file in the Simple cache consists of a SimpleFileHeader followed |
| // by data. |
| |
| // A file in the Simple cache consists of: |
| // - a SimpleFileHeader. |
| // - the key. |
| // - the data. |
| // - at the end, a SimpleFileEOF record. |
| const uint32 kSimpleVersion = 4; |
| |
| static const int kSimpleEntryFileCount = 3; |
| |
| struct NET_EXPORT_PRIVATE SimpleFileHeader { |
| SimpleFileHeader(); |
| |
| uint64 initial_magic_number; |
| uint32 version; |
| uint32 key_length; |
| uint32 key_hash; |
| }; |
| |
| struct SimpleFileEOF { |
| enum Flags { |
| FLAG_HAS_CRC32 = (1U << 0), |
| }; |
| |
| SimpleFileEOF(); |
| |
| uint64 final_magic_number; |
| uint32 flags; |
| uint32 data_crc32; |
| }; |
| |
| } // namespace disk_cache |
| |
| #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_ |