| /* |
| * Copyright (C) 2010 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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 DatabaseSync_h |
| #define DatabaseSync_h |
| |
| #include "bindings/core/v8/ScriptWrappable.h" |
| #include "modules/webdatabase/DatabaseBackendSync.h" |
| #include "modules/webdatabase/DatabaseBase.h" |
| #include "modules/webdatabase/DatabaseBasicTypes.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Forward.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| class DatabaseCallback; |
| class ExceptionState; |
| class SQLTransactionSync; |
| class SQLTransactionSyncCallback; |
| |
| // Instances of this class should be created and used only on the worker's context thread. |
| class DatabaseSync FINAL : public DatabaseBackendSync, public DatabaseBase, public ScriptWrappable { |
| public: |
| virtual ~DatabaseSync(); |
| virtual void trace(Visitor*) OVERRIDE; |
| |
| void changeVersion(const String& oldVersion, const String& newVersion, PassOwnPtr<SQLTransactionSyncCallback>, ExceptionState&); |
| void transaction(PassOwnPtr<SQLTransactionSyncCallback>, ExceptionState&); |
| void readTransaction(PassOwnPtr<SQLTransactionSyncCallback>, ExceptionState&); |
| |
| virtual void closeImmediately() OVERRIDE; |
| void observeTransaction(SQLTransactionSync&); |
| |
| const String& lastErrorMessage() const { return m_lastErrorMessage; } |
| void setLastErrorMessage(const String& message) { m_lastErrorMessage = message; } |
| void setLastErrorMessage(const char* message, int sqliteCode, const char* sqliteMessage) |
| { |
| setLastErrorMessage(String::format("%s (%d, %s)", message, sqliteCode, sqliteMessage)); |
| } |
| |
| private: |
| DatabaseSync(DatabaseContext*, const String& name, |
| const String& expectedVersion, const String& displayName, unsigned long estimatedSize); |
| static PassRefPtrWillBeRawPtr<DatabaseSync> create(ExecutionContext*, PassRefPtrWillBeRawPtr<DatabaseBackendBase>); |
| |
| void runTransaction(PassOwnPtr<SQLTransactionSyncCallback>, bool readOnly, ExceptionState&); |
| void rollbackTransaction(SQLTransactionSync&); |
| #if ENABLE(OILPAN) |
| class TransactionObserver { |
| public: |
| explicit TransactionObserver(SQLTransactionSync& transaction) : m_transaction(transaction) { } |
| ~TransactionObserver(); |
| |
| private: |
| SQLTransactionSync& m_transaction; |
| }; |
| |
| // Need a Persistent field because a HeapHashMap entry should be removed |
| // just after a SQLTransactionSync becomes untraceable. If this field was a |
| // Member<>, we could not assume the destruction order of DatabaseSync, |
| // SQLTransactionSync, and the field. We can not make the field static |
| // because multiple worker threads create SQLTransactionSync. |
| GC_PLUGIN_IGNORE("http://crbug.com/353083") |
| PersistentHeapHashMap<WeakMember<SQLTransactionSync>, OwnPtr<TransactionObserver> > m_observers; |
| #endif |
| |
| String m_lastErrorMessage; |
| |
| friend class DatabaseManager; |
| friend class DatabaseServer; // FIXME: remove this when the backend has been split out. |
| }; |
| |
| } // namespace blink |
| |
| #endif |