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-rw-r--r--WebCore/storage/SQLTransaction.h131
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diff --git a/WebCore/storage/SQLTransaction.h b/WebCore/storage/SQLTransaction.h
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-/*
- * Copyright (C) 2007 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 SQLTransaction_h
-#define SQLTransaction_h
-
-#include <wtf/Threading.h>
-
-#include "SQLiteTransaction.h"
-#include "SQLStatement.h"
-#include "SQLTransactionCallback.h"
-#include "SQLTransactionErrorCallback.h"
-#include <wtf/Deque.h>
-#include <wtf/Forward.h>
-#include <wtf/OwnPtr.h>
-#include <wtf/RefPtr.h>
-#include <wtf/Vector.h>
-
-namespace WebCore {
-
-typedef int ExceptionCode;
-
-class Database;
-class SQLError;
-class SQLStatementCallback;
-class SQLStatementErrorCallback;
-class SQLTransaction;
-class SQLValue;
-class String;
-class VoidCallback;
-
-class SQLTransactionWrapper : public ThreadSafeShared<SQLTransactionWrapper> {
-public:
- virtual ~SQLTransactionWrapper() { }
- virtual bool performPreflight(SQLTransaction*) = 0;
- virtual bool performPostflight(SQLTransaction*) = 0;
-
- virtual SQLError* sqlError() const = 0;
-};
-
-class SQLTransaction : public ThreadSafeShared<SQLTransaction> {
-public:
- static PassRefPtr<SQLTransaction> create(Database*, PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback>, PassRefPtr<SQLTransactionWrapper>);
-
- ~SQLTransaction();
-
- void executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments,
- PassRefPtr<SQLStatementCallback> callback, PassRefPtr<SQLStatementErrorCallback> callbackError, ExceptionCode& e);
-
- bool performNextStep();
- void performPendingCallback();
-
- Database* database() { return m_database.get(); }
-
-private:
- SQLTransaction(Database*, PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback>, PassRefPtr<SQLTransactionWrapper>);
-
- typedef void (SQLTransaction::*TransactionStepMethod)();
- TransactionStepMethod m_nextStep;
-
- void enqueueStatement(PassRefPtr<SQLStatement>);
-
- void checkAndHandleClosedDatabase();
-
- void openTransactionAndPreflight();
- void deliverTransactionCallback();
- void scheduleToRunStatements();
- void runStatements();
- void getNextStatement();
- bool runCurrentStatement();
- void handleCurrentStatementError();
- void deliverStatementCallback();
- void deliverQuotaIncreaseCallback();
- void postflightAndCommit();
- void deliverSuccessCallback();
- void cleanupAfterSuccessCallback();
- void handleTransactionError(bool inCallback);
- void deliverTransactionErrorCallback();
- void cleanupAfterTransactionErrorCallback();
-
-#ifndef NDEBUG
- static const char* debugStepName(TransactionStepMethod);
-#endif
-
- RefPtr<SQLStatement> m_currentStatement;
-
- bool m_executeSqlAllowed;
-
- RefPtr<Database> m_database;
- RefPtr<SQLTransactionWrapper> m_wrapper;
- RefPtr<SQLTransactionCallback> m_callback;
- RefPtr<VoidCallback> m_successCallback;
- RefPtr<SQLTransactionErrorCallback> m_errorCallback;
- RefPtr<SQLError> m_transactionError;
- bool m_shouldRetryCurrentStatement;
- bool m_shouldCommitAfterErrorCallback;
- bool m_modifiedDatabase;
-
- Mutex m_statementMutex;
- Deque<RefPtr<SQLStatement> > m_statementQueue;
-
- OwnPtr<SQLiteTransaction> m_sqliteTransaction;
-};
-
-} // namespace WebCore
-
-#endif // SQLTransaction_h