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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/modules/indexeddb/idb_key_path.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
#include "third_party/blink/renderer/platform/wtf/ref_counted.h"
#include "third_party/blink/renderer/platform/wtf/text/string_hash.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
// The lifecycle of the IndexedDB metadata objects defined below is managed by
// reference counting (RefPtr). We don't have to worry about cycles because
// these objects form a tree with the hierarchy shown below.
// IDBDatabaseMetadata -> IDBObjectStoreMetadata -> IDBIndexMetadata
class IDBIndexMetadata : public RefCounted<IDBIndexMetadata> {
USING_FAST_MALLOC(IDBIndexMetadata);
public:
static constexpr int64_t kInvalidId = -1;
IDBIndexMetadata();
IDBIndexMetadata(const String& name,
int64_t id,
const IDBKeyPath&,
bool unique,
bool multi_entry);
static scoped_refptr<IDBIndexMetadata> Create();
String name;
int64_t id;
IDBKeyPath key_path;
bool unique;
bool multi_entry;
};
class MODULES_EXPORT IDBObjectStoreMetadata
: public RefCounted<IDBObjectStoreMetadata> {
USING_FAST_MALLOC(IDBObjectStoreMetadata);
public:
static constexpr int64_t kInvalidId = -1;
IDBObjectStoreMetadata();
IDBObjectStoreMetadata(const String& name,
int64_t id,
const IDBKeyPath&,
bool auto_increment,
int64_t max_index_id);
static scoped_refptr<IDBObjectStoreMetadata> Create();
// Creates a deep copy of the object metadata, which includes copies of index
// metadata items.
scoped_refptr<IDBObjectStoreMetadata> CreateCopy() const;
String name;
int64_t id;
IDBKeyPath key_path;
bool auto_increment;
int64_t max_index_id;
HashMap<int64_t, scoped_refptr<IDBIndexMetadata>> indexes;
};
struct MODULES_EXPORT IDBDatabaseMetadata {
DISALLOW_NEW();
// FIXME: These can probably be collapsed into 0.
enum { kNoVersion = -1, kDefaultVersion = 0 };
IDBDatabaseMetadata();
IDBDatabaseMetadata(const String& name,
int64_t version,
int64_t max_object_store_id,
bool was_cold_open);
// Overwrites the database metadata, but does not change the object store and
// index metadata.
void CopyFrom(const IDBDatabaseMetadata&);
String name;
int64_t version;
int64_t max_object_store_id;
HashMap<int64_t, scoped_refptr<IDBObjectStoreMetadata>> object_stores;
bool was_cold_open;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_
|
