blob: 8f41e6fe278eb4eb3d6147173ffa9155206b8685 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/disk_cache/addr.h"
#include "base/logging.h"
namespace disk_cache {
int Addr::start_block() const {
DCHECK(is_block_file());
return value_ & kStartBlockMask;
}
int Addr::num_blocks() const {
DCHECK(is_block_file() || !value_);
return ((value_ & kNumBlocksMask) >> kNumBlocksOffset) + 1;
}
bool Addr::SetFileNumber(int file_number) {
DCHECK(is_separate_file());
if (file_number & ~kFileNameMask)
return false;
value_ = kInitializedMask | file_number;
return true;
}
bool Addr::SanityCheckV2() const {
if (!is_initialized())
return !value_;
if (file_type() > BLOCK_4K)
return false;
if (is_separate_file())
return true;
return !reserved_bits();
}
bool Addr::SanityCheckV3() const {
if (!is_initialized())
return !value_;
// For actual entries, SanityCheckForEntryV3 should be used.
if (file_type() > BLOCK_FILES)
return false;
if (is_separate_file())
return true;
return !reserved_bits();
}
bool Addr::SanityCheckForEntryV2() const {
if (!SanityCheckV2() || !is_initialized())
return false;
if (is_separate_file() || file_type() != BLOCK_256)
return false;
return true;
}
bool Addr::SanityCheckForEntryV3() const {
if (!is_initialized())
return false;
if (reserved_bits())
return false;
if (file_type() != BLOCK_ENTRIES && file_type() != BLOCK_EVICTED)
return false;
if (num_blocks() != 1)
return false;
return true;
}
bool Addr::SanityCheckForRankings() const {
if (!SanityCheckV2() || !is_initialized())
return false;
if (is_separate_file() || file_type() != RANKINGS || num_blocks() != 1)
return false;
return true;
}
} // namespace disk_cache
|
