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| 1 // Copyright (c) 2013 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 #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_ | |
| 6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_ | |
| 7 | |
| 8 | |
| 9 #include "base/basictypes.h" | |
| 10 #include "base/port.h" | |
| 11 #include "net/base/net_export.h" | |
| 12 | |
| 13 namespace base { | |
| 14 class Time; | |
| 15 } | |
| 16 | |
| 17 namespace disk_cache { | |
| 18 | |
| 19 const uint64 kSimpleInitialMagicNumber = GG_UINT64_C(0xfcfb6d1ba7725c30); | |
| 20 const uint64 kSimpleFinalMagicNumber = GG_UINT64_C(0xf4fa6f45970d41d8); | |
| 21 const uint64 kSimpleSparseRangeMagicNumber = GG_UINT64_C(0xeb97bf016553676b); | |
| 22 | |
| 23 // A file containing stream 0 and stream 1 in the Simple cache consists of: | |
| 24 // - a SimpleFileHeader. | |
| 25 // - the key. | |
| 26 // - the data from stream 1. | |
| 27 // - a SimpleFileEOF record for stream 1. | |
| 28 // - the data from stream 0. | |
| 29 // - a SimpleFileEOF record for stream 0. | |
| 30 | |
| 31 // A file containing stream 2 in the Simple cache consists of: | |
| 32 // - a SimpleFileHeader. | |
| 33 // - the key. | |
| 34 // - the data. | |
| 35 // - at the end, a SimpleFileEOF record. | |
| 36 static const int kSimpleEntryFileCount = 2; | |
| 37 static const int kSimpleEntryStreamCount = 3; | |
| 38 | |
| 39 struct NET_EXPORT_PRIVATE SimpleFileHeader { | |
| 40 SimpleFileHeader(); | |
| 41 | |
| 42 uint64 initial_magic_number; | |
| 43 uint32 version; | |
| 44 uint32 key_length; | |
| 45 uint32 key_hash; | |
| 46 }; | |
| 47 | |
| 48 struct NET_EXPORT_PRIVATE SimpleFileEOF { | |
| 49 enum Flags { | |
| 50 FLAG_HAS_CRC32 = (1U << 0), | |
| 51 }; | |
| 52 | |
| 53 SimpleFileEOF(); | |
| 54 | |
| 55 uint64 final_magic_number; | |
| 56 uint32 flags; | |
| 57 uint32 data_crc32; | |
| 58 // |stream_size| is only used in the EOF record for stream 0. | |
| 59 uint32 stream_size; | |
| 60 }; | |
| 61 | |
| 62 struct SimpleFileSparseRangeHeader { | |
| 63 SimpleFileSparseRangeHeader(); | |
| 64 | |
| 65 uint64 sparse_range_magic_number; | |
| 66 int64 offset; | |
| 67 int64 length; | |
| 68 uint32 data_crc32; | |
| 69 }; | |
| 70 | |
| 71 } // namespace disk_cache | |
| 72 | |
| 73 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_ | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master