net/disk_cache/simple/simple_entry_format.h - Issue 1977863003: SimpleCache: open with fewer seeks.

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Side by Side Diff: net/disk_cache/simple/simple_entry_format.h

Issue 1977863003: SimpleCache: open with fewer seeks. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@open-speeder-macbetter

Patch Set: add unit tests Created 4 years, 7 months ago

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« net/disk_cache/entry_unittest.cc ('K') | « net/disk_cache/simple/simple_backend_impl.cc ('k') | net/disk_cache/simple/simple_entry_impl.h » ('j') | net/disk_cache/simple/simple_synchronous_entry.cc » ('J')
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.	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	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_	5 #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_

6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_	6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_

7	7

8 #include <stdint.h>	8 #include <stdint.h>

9	9

10 #include "net/base/net_export.h"	10 #include "net/base/net_export.h"

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40	40

41 uint64_t initial_magic_number;	41 uint64_t initial_magic_number;

42 uint32_t version;	42 uint32_t version;

43 uint32_t key_length;	43 uint32_t key_length;

44 uint32_t key_hash;	44 uint32_t key_hash;

45 };	45 };

46	46

47 struct NET_EXPORT_PRIVATE SimpleFileEOF {	47 struct NET_EXPORT_PRIVATE SimpleFileEOF {

48 enum Flags {	48 enum Flags {

49 FLAG_HAS_CRC32 = (1U << 0),	49 FLAG_HAS_CRC32 = (1U << 0),

	50 FLAG_HAS_KEY_SHA256 = (2U << 1),

50 };	51 };

51	52

52 SimpleFileEOF();	53 SimpleFileEOF();

53	54

54 uint64_t final_magic_number;	55 uint64_t final_magic_number;

55 uint32_t flags;	56 uint32_t flags;

56 uint32_t data_crc32;	57 uint32_t data_crc32;

57 // \|stream_size\| is only used in the EOF record for stream 0.	58 // \|stream_size\| is only used in the EOF record for stream 0.

58 uint32_t stream_size;	59 uint32_t stream_size;

59 };	60 };

60	61

61 struct SimpleFileSparseRangeHeader {	62 struct SimpleFileSparseRangeHeader {

62 SimpleFileSparseRangeHeader();	63 SimpleFileSparseRangeHeader();

63	64

64 uint64_t sparse_range_magic_number;	65 uint64_t sparse_range_magic_number;

65 int64_t offset;	66 int64_t offset;

66 int64_t length;	67 int64_t length;

67 uint32_t data_crc32;	68 uint32_t data_crc32;

68 };	69 };

69	70

70 } // namespace disk_cache	71 } // namespace disk_cache

71	72

72 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_	73 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_ENTRY_FORMAT_H_

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