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Side by Side Diff: net/disk_cache/blockfile/addr.h

Issue 1477533002: Remove kint16max. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@kint8max
Patch Set: includes Created 5 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 // This is an internal class that handles the address of a cache record. 5 // This is an internal class that handles the address of a cache record.
6 // See net/disk_cache/disk_cache.h for the public interface of the cache. 6 // See net/disk_cache/disk_cache.h for the public interface of the cache.
7 7
8 #ifndef NET_DISK_CACHE_BLOCKFILE_ADDR_H_ 8 #ifndef NET_DISK_CACHE_BLOCKFILE_ADDR_H_
9 #define NET_DISK_CACHE_BLOCKFILE_ADDR_H_ 9 #define NET_DISK_CACHE_BLOCKFILE_ADDR_H_
10 10
11 #include <stddef.h>
12 #include <stdint.h>
13
11 #include "net/base/net_export.h" 14 #include "net/base/net_export.h"
12 #include "net/disk_cache/blockfile/disk_format_base.h" 15 #include "net/disk_cache/blockfile/disk_format_base.h"
13 16
14 namespace disk_cache { 17 namespace disk_cache {
15 18
16 enum FileType { 19 enum FileType {
17 EXTERNAL = 0, 20 EXTERNAL = 0,
18 RANKINGS = 1, 21 RANKINGS = 1,
19 BLOCK_256 = 2, 22 BLOCK_256 = 2,
20 BLOCK_1K = 3, 23 BLOCK_1K = 3,
21 BLOCK_4K = 4, 24 BLOCK_4K = 4,
22 BLOCK_FILES = 5, 25 BLOCK_FILES = 5,
23 BLOCK_ENTRIES = 6, 26 BLOCK_ENTRIES = 6,
24 BLOCK_EVICTED = 7 27 BLOCK_EVICTED = 7
25 }; 28 };
26 29
27 const int kMaxBlockSize = 4096 * 4; 30 const int kMaxBlockSize = 4096 * 4;
28 const int16 kMaxBlockFile = 255; 31 const int16_t kMaxBlockFile = 255;
29 const int kMaxNumBlocks = 4; 32 const int kMaxNumBlocks = 4;
30 const int16 kFirstAdditionalBlockFile = 4; 33 const int16_t kFirstAdditionalBlockFile = 4;
31 const size_t kFirstAdditionalBlockFileV3 = 7; 34 const size_t kFirstAdditionalBlockFileV3 = 7;
32 35
33 // Defines a storage address for a cache record 36 // Defines a storage address for a cache record
34 // 37 //
35 // Header: 38 // Header:
36 // 1000 0000 0000 0000 0000 0000 0000 0000 : initialized bit 39 // 1000 0000 0000 0000 0000 0000 0000 0000 : initialized bit
37 // 0111 0000 0000 0000 0000 0000 0000 0000 : file type 40 // 0111 0000 0000 0000 0000 0000 0000 0000 : file type
38 // 41 //
39 // File type values: 42 // File type values:
40 // 0 = separate file on disk 43 // 0 = separate file on disk
(...skipping 117 matching lines...) Expand 10 before | Expand all | Expand 10 after
158 } 161 }
159 162
160 // Returns true if this address looks like a valid one. 163 // Returns true if this address looks like a valid one.
161 bool SanityCheckV2() const; 164 bool SanityCheckV2() const;
162 bool SanityCheckV3() const; 165 bool SanityCheckV3() const;
163 bool SanityCheckForEntryV2() const; 166 bool SanityCheckForEntryV2() const;
164 bool SanityCheckForEntryV3() const; 167 bool SanityCheckForEntryV3() const;
165 bool SanityCheckForRankings() const; 168 bool SanityCheckForRankings() const;
166 169
167 private: 170 private:
168 uint32 reserved_bits() const { 171 uint32_t reserved_bits() const { return value_ & kReservedBitsMask; }
169 return value_ & kReservedBitsMask;
170 }
171 172
172 static const uint32 kInitializedMask = 0x80000000; 173 static const uint32_t kInitializedMask = 0x80000000;
173 static const uint32 kFileTypeMask = 0x70000000; 174 static const uint32_t kFileTypeMask = 0x70000000;
174 static const uint32 kFileTypeOffset = 28; 175 static const uint32_t kFileTypeOffset = 28;
175 static const uint32 kReservedBitsMask = 0x0c000000; 176 static const uint32_t kReservedBitsMask = 0x0c000000;
176 static const uint32 kNumBlocksMask = 0x03000000; 177 static const uint32_t kNumBlocksMask = 0x03000000;
177 static const uint32 kNumBlocksOffset = 24; 178 static const uint32_t kNumBlocksOffset = 24;
178 static const uint32 kFileSelectorMask = 0x00ff0000; 179 static const uint32_t kFileSelectorMask = 0x00ff0000;
179 static const uint32 kFileSelectorOffset = 16; 180 static const uint32_t kFileSelectorOffset = 16;
180 static const uint32 kStartBlockMask = 0x0000FFFF; 181 static const uint32_t kStartBlockMask = 0x0000FFFF;
181 static const uint32 kFileNameMask = 0x0FFFFFFF; 182 static const uint32_t kFileNameMask = 0x0FFFFFFF;
182 183
183 CacheAddr value_; 184 CacheAddr value_;
184 }; 185 };
185 186
186 } // namespace disk_cache 187 } // namespace disk_cache
187 188
188 #endif // NET_DISK_CACHE_BLOCKFILE_ADDR_H_ 189 #endif // NET_DISK_CACHE_BLOCKFILE_ADDR_H_
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