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32 #include "MessageQueue.h"
33 #include "PlatformString.h"
34 #include "SecurityOrigin.h"
35 #include "SQLiteDatabase.h"
36 #include "SQLTransaction.h"
37 #include "StringHash.h"
39 #include "VoidCallback.h"
41 #include <wtf/Forward.h>
42 #include <wtf/HashSet.h>
43 #include <wtf/OwnPtr.h>
44 #include <wtf/PassRefPtr.h>
45 #include <wtf/RefPtr.h>
46 #include <wtf/Deque.h>
50 class DatabaseAuthorizer;
54 class SQLTransactionCallback;
55 class SQLTransactionErrorCallback;
58 typedef int ExceptionCode;
60 class Database : public ThreadSafeShared<Database> {
61 friend class DatabaseTransactionTask;
62 friend class SQLStatement;
63 friend class SQLTransaction;
67 // Direct support for the DOM API
68 static PassRefPtr<Database> openDatabase(Document* document, const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize, ExceptionCode&);
69 String version() const;
70 void changeVersion(const String& oldVersion, const String& newVersion,
71 PassRefPtr<SQLTransactionCallback> callback, PassRefPtr<SQLTransactionErrorCallback> errorCallback,
72 PassRefPtr<VoidCallback> successCallback);
73 void transaction(PassRefPtr<SQLTransactionCallback> callback, PassRefPtr<SQLTransactionErrorCallback> errorCallback,
74 PassRefPtr<VoidCallback> successCallback);
76 // Internal engine support
77 static const String& databaseInfoTableName();
79 void disableAuthorizer();
80 void enableAuthorizer();
82 Vector<String> tableNames();
84 Document* document() const { return m_document; }
85 PassRefPtr<SecurityOrigin> securityOriginCopy() const;
86 String stringIdentifier() const;
88 bool getVersionFromDatabase(String&);
89 bool setVersionInDatabase(const String&);
90 void setExpectedVersion(const String&);
91 bool versionMatchesExpected() const;
93 void markAsDeletedAndClose();
94 bool deleted() const { return m_deleted; }
98 unsigned long long databaseSize() const;
99 unsigned long long maximumSize() const;
101 // Called from DatabaseThread, must be prepared to work on the background thread
102 void resetAuthorizer();
103 void performPolicyChecks();
105 bool performOpenAndVerify(ExceptionCode&);
107 Vector<String> performGetTableNames();
110 Database(Document* document, const String& name, const String& expectedVersion);
112 bool openAndVerifyVersion(ExceptionCode&);
114 void scheduleTransaction();
115 void scheduleTransactionCallback(SQLTransaction*);
116 void scheduleTransactionStep(SQLTransaction* transaction);
118 MessageQueue<RefPtr<SQLTransaction> > m_transactionQueue;
119 Mutex m_transactionInProgressMutex;
120 bool m_transactionInProgress;
122 static void deliverPendingCallback(void*);
124 Document* m_document;
125 RefPtr<SecurityOrigin> m_securityOrigin;
128 String m_expectedVersion;
133 SQLiteDatabase m_sqliteDatabase;
134 RefPtr<DatabaseAuthorizer> m_databaseAuthorizer;
137 String databaseDebugName() const { return m_securityOrigin->toString() + "::" + m_name; }
141 } // namespace WebCore