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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 #include "net/disk_cache/simple/simple_disk_format.h" | 5 #include "net/disk_cache/simple/simple_index_util.h" |
6 | 6 |
7 #include "base/hash.h" | |
8 #include "base/logging.h" | 7 #include "base/logging.h" |
pasko-google - do not use
2013/04/15 14:23:55
logging is not needed
felipeg
2013/04/15 15:37:04
Done.
| |
9 #include "base/sha1.h" | 8 #include "base/sha1.h" |
10 #include "base/stringprintf.h" | 9 #include "base/stringprintf.h" |
11 #include "base/strings/string_number_conversions.h" | 10 #include "base/strings/string_number_conversions.h" |
12 #include "base/time.h" | |
13 | 11 |
14 namespace disk_cache { | 12 namespace disk_cache { |
15 | 13 |
16 std::string ConvertEntryHashKeyToHexString(uint64 hash_key) { | 14 std::string ConvertEntryHashKeyToHexString(uint64 hash_key) { |
17 const std::string hash_key_str = base::StringPrintf("%016lX", hash_key); | 15 const std::string hash_key_str = base::StringPrintf("%016lX", hash_key); |
18 DCHECK_EQ(kEntryHashKeyAsHexStringSize, hash_key_str.size()); | 16 DCHECK_EQ(kEntryHashKeyAsHexStringSize, hash_key_str.size()); |
19 return hash_key_str; | 17 return hash_key_str; |
20 } | 18 } |
21 | 19 |
22 std::string GetEntryHashKeyAsHexString(const std::string& key) { | 20 std::string GetEntryHashKeyAsHexString(const std::string& key) { |
(...skipping 11 matching lines...) Expand all Loading... | |
34 return base::HexStringToUInt64(hash_key, hash_key_out); | 32 return base::HexStringToUInt64(hash_key, hash_key_out); |
35 } | 33 } |
36 | 34 |
37 uint64 GetEntryHashKey(const std::string& key) { | 35 uint64 GetEntryHashKey(const std::string& key) { |
38 const std::string sha_hash = base::SHA1HashString(key); | 36 const std::string sha_hash = base::SHA1HashString(key); |
39 uint64 hash_key = 0; | 37 uint64 hash_key = 0; |
40 sha_hash.copy(reinterpret_cast<char*>(&hash_key), sizeof(hash_key)); | 38 sha_hash.copy(reinterpret_cast<char*>(&hash_key), sizeof(hash_key)); |
41 return hash_key; | 39 return hash_key; |
42 } | 40 } |
43 | 41 |
44 namespace SimpleIndexFile { | |
45 | |
46 Footer::Footer() { | |
47 // Make hashing repeatable: leave no padding bytes untouched. | |
48 memset(this, 0, sizeof(*this)); | |
49 } | |
50 | |
51 Header::Header() { | |
52 // Make hashing repeatable: leave no padding bytes untouched. | |
53 memset(this, 0, sizeof(*this)); | |
54 } | |
55 | |
56 EntryMetadata::EntryMetadata() { | |
57 // Make hashing repeatable: leave no padding bytes untouched. | |
58 memset(this, 0, sizeof(*this)); | |
59 } | |
60 | |
61 EntryMetadata::EntryMetadata(uint64 hash_key_p, | |
62 base::Time last_used_time_p, | |
63 uint64 entry_size_p) { | |
64 // Make hashing repeatable: leave no padding bytes untouched. | |
65 memset(this, 0, sizeof(*this)); | |
66 | |
67 // Proceed with field initializations. | |
68 hash_key = hash_key_p; | |
69 entry_size = entry_size_p; | |
70 last_used_time = last_used_time_p.ToInternalValue(); | |
71 } | |
72 | |
73 uint64 EntryMetadata::GetHashKey() const { | |
74 return hash_key; | |
75 } | |
76 | |
77 base::Time EntryMetadata::GetLastUsedTime() const { | |
78 return base::Time::FromInternalValue(last_used_time); | |
79 } | |
80 | |
81 void EntryMetadata::SetLastUsedTime(const base::Time& last_used_time_p) { | |
82 last_used_time = last_used_time_p.ToInternalValue(); | |
83 } | |
84 | |
85 // static | |
86 void EntryMetadata::Serialize(const EntryMetadata& in_entry_metadata, | |
87 std::string* out_buffer) { | |
88 DCHECK(out_buffer); | |
89 // TODO(felipeg): We may choose to, instead, serialize each struct member | |
90 // separately. | |
91 out_buffer->append(reinterpret_cast<const char*>(&in_entry_metadata), | |
92 kEntryMetadataSize); | |
93 } | |
94 | |
95 // static | |
96 void EntryMetadata::DeSerialize(const char* in_buffer, | |
97 EntryMetadata* out_entry_metadata) { | |
98 DCHECK(in_buffer); | |
99 DCHECK(out_entry_metadata); | |
100 memcpy(out_entry_metadata, in_buffer, kEntryMetadataSize); | |
101 } | |
102 | |
103 // static | |
104 void EntryMetadata::Merge(const EntryMetadata& from, | |
105 EntryMetadata* to) { | |
106 if (to->last_used_time == 0) | |
107 to->last_used_time = from.last_used_time; | |
108 if (to->entry_size == 0) | |
109 to->entry_size = from.entry_size; | |
110 } | |
111 | |
112 } // namespace SimpleIndexFile | |
113 | |
114 } // namespace disk_cache | 42 } // namespace disk_cache |
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