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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (C) 2007, 2008 Apple 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 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 Database_h
#define Database_h
#if ENABLE(DATABASE)
#include "PlatformString.h"
#include "SecurityOrigin.h"
#include "SQLiteDatabase.h"
#include "SQLTransaction.h"
#include "StringHash.h"
#include "Timer.h"
#include "VoidCallback.h"
#include <wtf/Forward.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
#include <wtf/Deque.h>
#else
#include "PlatformString.h"
#endif
#if ENABLE(DATABASE)
namespace WebCore {
class DatabaseAuthorizer;
class DatabaseCallback;
class DatabaseThread;
class ScriptExecutionContext;
class SQLResultSet;
class SQLTransactionCallback;
class SQLTransactionClient;
class SQLTransactionCoordinator;
class SQLTransactionErrorCallback;
class SQLValue;
typedef int ExceptionCode;
class Database : public ThreadSafeShared<Database> {
friend class DatabaseTransactionTask;
friend class SQLStatement;
friend class SQLTransaction;
public:
static void setIsAvailable(bool);
static bool isAvailable();
~Database();
// Direct support for the DOM API
static PassRefPtr<Database> openDatabase(ScriptExecutionContext* context, const String& name,
const String& expectedVersion, const String& displayName,
unsigned long estimatedSize, PassRefPtr<DatabaseCallback> creationCallback,
ExceptionCode&);
String version() const;
void changeVersion(const String& oldVersion, const String& newVersion,
PassRefPtr<SQLTransactionCallback> callback, PassRefPtr<SQLTransactionErrorCallback> errorCallback,
PassRefPtr<VoidCallback> successCallback);
void transaction(PassRefPtr<SQLTransactionCallback> callback, PassRefPtr<SQLTransactionErrorCallback> errorCallback,
PassRefPtr<VoidCallback> successCallback, bool readOnly);
// Internal engine support
static const String& databaseInfoTableName();
void disableAuthorizer();
void enableAuthorizer();
void setAuthorizerReadOnly();
Vector<String> tableNames();
ScriptExecutionContext* scriptExecutionContext() const { return m_scriptExecutionContext.get(); }
SecurityOrigin* securityOrigin() const;
String stringIdentifier() const;
String displayName() const;
unsigned long estimatedSize() const;
String fileName() const;
bool getVersionFromDatabase(String&);
bool setVersionInDatabase(const String&);
void setExpectedVersion(const String&);
bool versionMatchesExpected() const;
void markAsDeletedAndClose();
bool deleted() const { return m_deleted; }
void close();
bool opened() const { return m_opened; }
void stop();
bool stopped() const { return m_stopped; }
bool isNew() const { return m_new; }
unsigned long long databaseSize() const;
unsigned long long maximumSize() const;
// Called from DatabaseThread, must be prepared to work on the background thread
void resetAuthorizer();
void performPolicyChecks();
bool performOpenAndVerify(ExceptionCode&);
Vector<String> performGetTableNames();
void performCreationCallback();
SQLTransactionClient* transactionClient() const;
SQLTransactionCoordinator* transactionCoordinator() const;
private:
Database(ScriptExecutionContext* context, const String& name,
const String& expectedVersion, const String& displayName,
unsigned long estimatedSize, PassRefPtr<DatabaseCallback> creationCallback);
bool openAndVerifyVersion(ExceptionCode&);
void scheduleTransaction();
void scheduleTransactionCallback(SQLTransaction*);
void scheduleTransactionStep(SQLTransaction* transaction, bool immediately = false);
Deque<RefPtr<SQLTransaction> > m_transactionQueue;
Mutex m_transactionInProgressMutex;
bool m_transactionInProgress;
bool m_isTransactionQueueEnabled;
static void deliverPendingCallback(void*);
RefPtr<ScriptExecutionContext> m_scriptExecutionContext;
RefPtr<SecurityOrigin> m_mainThreadSecurityOrigin;
RefPtr<SecurityOrigin> m_databaseThreadSecurityOrigin;
String m_name;
int m_guid;
String m_expectedVersion;
String m_displayName;
unsigned long m_estimatedSize;
String m_filename;
bool m_deleted;
bool m_stopped;
bool m_opened;
bool m_new;
SQLiteDatabase m_sqliteDatabase;
RefPtr<DatabaseAuthorizer> m_databaseAuthorizer;
RefPtr<DatabaseCallback> m_creationCallback;
#ifndef NDEBUG
String databaseDebugName() const { return m_mainThreadSecurityOrigin->toString() + "::" + m_name; }
#endif
};
} // namespace WebCore
#else
namespace WebCore {
class Database : public ThreadSafeShared<Database> {
public:
static const String& databaseInfoTableName();
};
} // namespace WebCore
#endif // ENABLE(DATABASE)
#endif // Database_h
|
