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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_SessionStorageCache_h
#define mozilla_dom_SessionStorageCache_h
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/LSWriteOptimizerImpl.h"
#include "nsDataHashtable.h"
namespace mozilla {
namespace dom {
class SSSetItemInfo;
class SSWriteInfo;
class SessionStorageCacheChild;
/**
* Coalescing manipulation queue used by `SessionStorageCache`. Used by
* `SessionStorageCache` to buffer and coalesce manipulations before they
* are sent to the parent process.
*/
class SSWriteOptimizer final : public LSWriteOptimizer<nsAString, nsString> {
public:
void Enumerate(nsTArray<SSWriteInfo>& aWriteInfos);
};
class SessionStorageCache final {
public:
NS_INLINE_DECL_REFCOUNTING(SessionStorageCache)
SessionStorageCache();
enum DataSetType {
eDefaultSetType,
eSessionSetType,
};
int64_t GetOriginQuotaUsage(DataSetType aDataSetType);
uint32_t Length(DataSetType aDataSetType);
void Key(DataSetType aDataSetType, uint32_t aIndex, nsAString& aResult);
void GetItem(DataSetType aDataSetType, const nsAString& aKey,
nsAString& aResult);
void GetKeys(DataSetType aDataSetType, nsTArray<nsString>& aKeys);
nsresult SetItem(DataSetType aDataSetType, const nsAString& aKey,
const nsAString& aValue, nsString& aOldValue,
bool aRecordWriteInfo = true);
nsresult RemoveItem(DataSetType aDataSetType, const nsAString& aKey,
nsString& aOldValue, bool aRecordWriteInfo = true);
void Clear(DataSetType aDataSetType, bool aByUserInteraction = true,
bool aRecordWriteInfo = true);
void ResetWriteInfos(DataSetType aDataSetType);
already_AddRefed<SessionStorageCache> Clone() const;
nsTArray<SSSetItemInfo> SerializeData(DataSetType aDataSetType);
nsTArray<SSWriteInfo> SerializeWriteInfos(DataSetType aDataSetType);
void DeserializeData(DataSetType aDataSetType,
const nsTArray<SSSetItemInfo>& aData);
void DeserializeWriteInfos(DataSetType aDataSetType,
const nsTArray<SSWriteInfo>& aInfos);
void SetActor(SessionStorageCacheChild* aActor);
SessionStorageCacheChild* Actor() const { return mActor; }
void ClearActor();
void SetLoadedOrCloned() { mLoadedOrCloned = true; }
bool WasLoadedOrCloned() const { return mLoadedOrCloned; }
private:
~SessionStorageCache();
struct DataSet {
DataSet() : mOriginQuotaUsage(0) {}
bool ProcessUsageDelta(int64_t aDelta);
nsDataHashtable<nsStringHashKey, nsString> mKeys;
SSWriteOptimizer mWriteOptimizer;
int64_t mOriginQuotaUsage;
};
DataSet* Set(DataSetType aDataSetType);
DataSet mDefaultSet;
DataSet mSessionSet;
SessionStorageCacheChild* mActor;
bool mLoadedOrCloned;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_SessionStorageCache_h
|
