| /* |
| * Copyright (C) 2007, 2013, 2015 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 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. |
| */ |
| |
| #pragma once |
| |
| #include "SQLTransactionStateMachine.h" |
| #include <memory> |
| #include <wtf/Forward.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace WebCore { |
| |
| class Database; |
| class OriginLock; |
| class SQLError; |
| class SQLiteTransaction; |
| class SQLStatement; |
| class SQLTransaction; |
| class SQLTransactionWrapper; |
| |
| class SQLTransactionBackend : public SQLTransactionStateMachine<SQLTransactionBackend> { |
| public: |
| explicit SQLTransactionBackend(SQLTransaction&); |
| ~SQLTransactionBackend(); |
| |
| void notifyDatabaseThreadIsShuttingDown(); |
| |
| // API called from the frontend published via SQLTransactionBackend: |
| void requestTransitToState(SQLTransactionState); |
| |
| private: |
| friend class SQLTransaction; |
| |
| void doCleanup(); |
| |
| // State Machine functions: |
| StateFunction stateFunctionFor(SQLTransactionState) override; |
| void computeNextStateAndCleanupIfNeeded(); |
| |
| // State functions: |
| void acquireLock(); |
| void openTransactionAndPreflight(); |
| void runStatements(); |
| void cleanupAndTerminate(); |
| void cleanupAfterTransactionErrorCallback(); |
| |
| NO_RETURN_DUE_TO_ASSERT void unreachableState(); |
| |
| SQLTransaction& m_frontend; |
| }; |
| |
| } // namespace WebCore |