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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* Copyright (C) 2011 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 IDBBackingStoreLevelDB_h
#define IDBBackingStoreLevelDB_h
#if ENABLE(INDEXED_DATABASE) && USE(LEVELDB)
#include "IDBBackingStoreCursorLevelDB.h"
#include "IDBBackingStoreTransactionLevelDB.h"
#include "IDBDatabaseMetadata.h"
#include "IDBKey.h"
#include "IDBRecordIdentifier.h"
#include "IndexedDB.h"
#include "LevelDBIterator.h"
#include "LevelDBTransaction.h"
#include <functional>
#include <wtf/OwnPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class LevelDBComparator;
class LevelDBDatabase;
class LevelDBTransaction;
class IDBIndexWriterLevelDB;
class IDBKey;
class IDBKeyRange;
class IDBTransactionBackend;
class SecurityOrigin;
class SharedBuffer;
class LevelDBFactory {
public:
virtual ~LevelDBFactory() { }
virtual PassOwnPtr<LevelDBDatabase> openLevelDB(const String& fileName, const LevelDBComparator*) = 0;
virtual bool destroyLevelDB(const String& fileName) = 0;
};
class IDBBackingStoreLevelDB : public RefCounted<IDBBackingStoreLevelDB> {
public:
class Transaction;
virtual ~IDBBackingStoreLevelDB();
static PassRefPtr<IDBBackingStoreLevelDB> open(const SecurityOrigin&, const String& pathBase, const String& fileIdentifier);
static PassRefPtr<IDBBackingStoreLevelDB> open(const SecurityOrigin&, const String& pathBase, const String& fileIdentifier, LevelDBFactory*);
static PassRefPtr<IDBBackingStoreLevelDB> openInMemory(const String& identifier);
static PassRefPtr<IDBBackingStoreLevelDB> openInMemory(const String& identifier, LevelDBFactory*);
WeakPtr<IDBBackingStoreLevelDB> createWeakPtr() { return m_weakFactory.createWeakPtr(); }
void establishBackingStoreTransaction(int64_t transactionID);
Vector<String> getDatabaseNames();
// New-style asynchronous callbacks
void getOrEstablishIDBDatabaseMetadata(const String& name, std::function<void (const IDBDatabaseMetadata&, bool success)> callbackFunction);
void deleteDatabase(const String& name, std::function<void (bool success)> successCallback);
// Old-style synchronous callbacks
bool updateIDBDatabaseVersion(IDBBackingStoreTransactionLevelDB&, int64_t rowId, uint64_t version);
bool createObjectStore(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, const String& name, const IDBKeyPath&, bool autoIncrement);
bool deleteObjectStore(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId) WARN_UNUSED_RETURN;
bool getRecord(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, const IDBKey&, Vector<char>& record) WARN_UNUSED_RETURN;
bool putRecord(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, const IDBKey&, PassRefPtr<SharedBuffer> value, IDBRecordIdentifier*) WARN_UNUSED_RETURN;
bool clearObjectStore(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId) WARN_UNUSED_RETURN;
bool deleteRecord(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, const IDBRecordIdentifier&) WARN_UNUSED_RETURN;
bool getKeyGeneratorCurrentNumber(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t& currentNumber) WARN_UNUSED_RETURN;
bool maybeUpdateKeyGeneratorCurrentNumber(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t newState, bool checkCurrent) WARN_UNUSED_RETURN;
bool keyExistsInObjectStore(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, const IDBKey&, RefPtr<IDBRecordIdentifier>& foundIDBRecordIdentifier) WARN_UNUSED_RETURN;
bool createIndex(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const String& name, const IDBKeyPath&, bool isUnique, bool isMultiEntry) WARN_UNUSED_RETURN;
bool deleteIndex(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId) WARN_UNUSED_RETURN;
bool putIndexDataForRecord(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const IDBKey&, const IDBRecordIdentifier*) WARN_UNUSED_RETURN;
bool getPrimaryKeyViaIndex(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const IDBKey&, RefPtr<IDBKey>& primaryKey) WARN_UNUSED_RETURN;
bool keyExistsInIndex(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const IDBKey& indexKey, RefPtr<IDBKey>& foundPrimaryKey, bool& exists) WARN_UNUSED_RETURN;
virtual PassRefPtr<IDBBackingStoreCursorLevelDB> openObjectStoreKeyCursor(int64_t cursorID, IDBBackingStoreTransactionLevelDB&, int64_t databaseID, int64_t objectStoreId, const IDBKeyRange*, IndexedDB::CursorDirection);
virtual PassRefPtr<IDBBackingStoreCursorLevelDB> openObjectStoreCursor(int64_t cursorID, IDBBackingStoreTransactionLevelDB&, int64_t databaseID, int64_t objectStoreId, const IDBKeyRange*, IndexedDB::CursorDirection);
virtual PassRefPtr<IDBBackingStoreCursorLevelDB> openIndexKeyCursor(int64_t cursorID, IDBBackingStoreTransactionLevelDB&, int64_t databaseID, int64_t objectStoreId, int64_t indexId, const IDBKeyRange*, IndexedDB::CursorDirection);
virtual PassRefPtr<IDBBackingStoreCursorLevelDB> openIndexCursor(int64_t cursorID, IDBBackingStoreTransactionLevelDB&, int64_t databaseID, int64_t objectStoreId, int64_t indexId, const IDBKeyRange*, IndexedDB::CursorDirection);
bool makeIndexWriters(int64_t transactionID, int64_t databaseId, const IDBObjectStoreMetadata&, IDBKey& primaryKey, bool keyWasGenerated, const Vector<int64_t>& indexIds, const Vector<Vector<RefPtr<IDBKey>>>&, Vector<RefPtr<IDBIndexWriterLevelDB>>& indexWriters, String* errorMessage, bool& completed) WARN_UNUSED_RETURN;
virtual PassRefPtr<IDBKey> generateKey(IDBTransactionBackend&, int64_t databaseId, int64_t objectStoreId);
bool updateKeyGenerator(IDBTransactionBackend&, int64_t databaseId, int64_t objectStoreId, const IDBKey&, bool checkCurrent);
LevelDBDatabase* levelDBDatabase() { return m_db.get(); }
static int compareIndexKeys(const LevelDBSlice&, const LevelDBSlice&);
void removeBackingStoreTransaction(IDBBackingStoreTransactionLevelDB*);
private:
IDBBackingStoreLevelDB(const String& identifier, PassOwnPtr<LevelDBDatabase>, PassOwnPtr<LevelDBComparator>);
static PassRefPtr<IDBBackingStoreLevelDB> create(const String& identifier, PassOwnPtr<LevelDBDatabase>, PassOwnPtr<LevelDBComparator>);
// FIXME: LevelDB needs to support uint64_t as the version type.
bool createIDBDatabaseMetaData(IDBDatabaseMetadata&);
bool getIDBDatabaseMetaData(const String& name, IDBDatabaseMetadata*, bool& success) WARN_UNUSED_RETURN;
bool getObjectStores(int64_t databaseId, IDBDatabaseMetadata::ObjectStoreMap* objectStores) WARN_UNUSED_RETURN;
bool findKeyInIndex(IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const IDBKey&, Vector<char>& foundEncodedPrimaryKey, bool& found);
bool getIndexes(int64_t databaseId, int64_t objectStoreId, IDBObjectStoreMetadata::IndexMap*) WARN_UNUSED_RETURN;
String m_identifier;
OwnPtr<LevelDBDatabase> m_db;
OwnPtr<LevelDBComparator> m_comparator;
WeakPtrFactory<IDBBackingStoreLevelDB> m_weakFactory;
HashMap<int64_t, RefPtr<IDBBackingStoreTransactionLevelDB>> m_backingStoreTransactions;
};
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE) && USE(LEVELDB)
#endif // IDBBackingStoreLevelDB_h
|
