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

Issue 7529043: Rename NET_API to NET_EXPORT, and rename NET_TEST to NET_EXPORT_PRIVATE. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 4 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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_ADDR_H_ 8 #ifndef NET_DISK_CACHE_ADDR_H_
9 #define NET_DISK_CACHE_ADDR_H_ 9 #define NET_DISK_CACHE_ADDR_H_
10 #pragma once 10 #pragma once
11 11
12 #include "net/base/net_api.h" 12 #include "net/base/net_export.h"
13 #include "net/disk_cache/disk_format.h" 13 #include "net/disk_cache/disk_format.h"
14 14
15 namespace disk_cache { 15 namespace disk_cache {
16 16
17 enum FileType { 17 enum FileType {
18 EXTERNAL = 0, 18 EXTERNAL = 0,
19 RANKINGS = 1, 19 RANKINGS = 1,
20 BLOCK_256, 20 BLOCK_256,
21 BLOCK_1K, 21 BLOCK_1K,
22 BLOCK_4K, 22 BLOCK_4K,
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41 // 4 = 4k byte block file 41 // 4 = 4k byte block file
42 // 42 //
43 // If separate file: 43 // If separate file:
44 // 0000 1111 1111 1111 1111 1111 1111 1111 : file# 0 - 268,435,456 (2^28) 44 // 0000 1111 1111 1111 1111 1111 1111 1111 : file# 0 - 268,435,456 (2^28)
45 // 45 //
46 // If block file: 46 // If block file:
47 // 0000 1100 0000 0000 0000 0000 0000 0000 : reserved bits 47 // 0000 1100 0000 0000 0000 0000 0000 0000 : reserved bits
48 // 0000 0011 0000 0000 0000 0000 0000 0000 : number of contiguous blocks 1-4 48 // 0000 0011 0000 0000 0000 0000 0000 0000 : number of contiguous blocks 1-4
49 // 0000 0000 1111 1111 0000 0000 0000 0000 : file selector 0 - 255 49 // 0000 0000 1111 1111 0000 0000 0000 0000 : file selector 0 - 255
50 // 0000 0000 0000 0000 1111 1111 1111 1111 : block# 0 - 65,535 (2^16) 50 // 0000 0000 0000 0000 1111 1111 1111 1111 : block# 0 - 65,535 (2^16)
51 class NET_TEST Addr { 51 class NET_EXPORT_PRIVATE Addr {
52 public: 52 public:
53 Addr() : value_(0) {} 53 Addr() : value_(0) {}
54 explicit Addr(CacheAddr address) : value_(address) {} 54 explicit Addr(CacheAddr address) : value_(address) {}
55 Addr(FileType file_type, int max_blocks, int block_file, int index) { 55 Addr(FileType file_type, int max_blocks, int block_file, int index) {
56 value_ = ((file_type << kFileTypeOffset) & kFileTypeMask) | 56 value_ = ((file_type << kFileTypeOffset) & kFileTypeMask) |
57 (((max_blocks - 1) << kNumBlocksOffset) & kNumBlocksMask) | 57 (((max_blocks - 1) << kNumBlocksOffset) & kNumBlocksMask) |
58 ((block_file << kFileSelectorOffset) & kFileSelectorMask) | 58 ((block_file << kFileSelectorOffset) & kFileSelectorMask) |
59 (index & kStartBlockMask) | kInitializedMask; 59 (index & kStartBlockMask) | kInitializedMask;
60 } 60 }
61 61
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133 static const uint32 kFileSelectorOffset = 16; 133 static const uint32 kFileSelectorOffset = 16;
134 static const uint32 kStartBlockMask = 0x0000FFFF; 134 static const uint32 kStartBlockMask = 0x0000FFFF;
135 static const uint32 kFileNameMask = 0x0FFFFFFF; 135 static const uint32 kFileNameMask = 0x0FFFFFFF;
136 136
137 CacheAddr value_; 137 CacheAddr value_;
138 }; 138 };
139 139
140 } // namespace disk_cache 140 } // namespace disk_cache
141 141
142 #endif // NET_DISK_CACHE_ADDR_H_ 142 #endif // NET_DISK_CACHE_ADDR_H_
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