| /* |
| * Copyright (C) 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(INDEXED_DATABASE) |
| |
| #include "IDBDatabaseInfo.h" |
| #include "IDBKeyData.h" |
| #include "IDBTransactionInfo.h" |
| #include "IndexValueStore.h" |
| #include "ThreadSafeDataBuffer.h" |
| #include <wtf/HashMap.h> |
| #include <wtf/HashSet.h> |
| |
| namespace WebCore { |
| namespace IDBServer { |
| |
| class MemoryIDBBackingStore; |
| class MemoryIndex; |
| class MemoryObjectStore; |
| |
| typedef HashMap<IDBKeyData, ThreadSafeDataBuffer, IDBKeyDataHash, IDBKeyDataHashTraits> KeyValueMap; |
| |
| class MemoryBackingStoreTransaction { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| static std::unique_ptr<MemoryBackingStoreTransaction> create(MemoryIDBBackingStore&, const IDBTransactionInfo&); |
| |
| MemoryBackingStoreTransaction(MemoryIDBBackingStore&, const IDBTransactionInfo&); |
| ~MemoryBackingStoreTransaction(); |
| |
| bool isVersionChange() const { return m_info.mode() == IDBTransactionMode::Versionchange; } |
| bool isWriting() const { return m_info.mode() != IDBTransactionMode::Readonly; } |
| bool isAborting() const { return m_isAborting; } |
| |
| const IDBDatabaseInfo& originalDatabaseInfo() const; |
| |
| void addNewObjectStore(MemoryObjectStore&); |
| void addExistingObjectStore(MemoryObjectStore&); |
| |
| void recordValueChanged(MemoryObjectStore&, const IDBKeyData&, ThreadSafeDataBuffer*); |
| void objectStoreDeleted(Ref<MemoryObjectStore>&&); |
| void objectStoreCleared(MemoryObjectStore&, std::unique_ptr<KeyValueMap>&&, std::unique_ptr<IDBKeyDataSet>&&); |
| void objectStoreRenamed(MemoryObjectStore&, const String& oldName); |
| void indexRenamed(MemoryIndex&, const String& oldName); |
| void indexCleared(MemoryIndex&, std::unique_ptr<IndexValueStore>&&); |
| |
| void addNewIndex(MemoryIndex&); |
| void addExistingIndex(MemoryIndex&); |
| void indexDeleted(Ref<MemoryIndex>&&); |
| |
| void abort(); |
| void commit(); |
| |
| private: |
| void finish(); |
| |
| MemoryIDBBackingStore& m_backingStore; |
| IDBTransactionInfo m_info; |
| |
| std::unique_ptr<IDBDatabaseInfo> m_originalDatabaseInfo; |
| |
| bool m_inProgress { true }; |
| bool m_isAborting { false }; |
| |
| HashSet<RefPtr<MemoryObjectStore>> m_objectStores; |
| HashSet<RefPtr<MemoryObjectStore>> m_versionChangeAddedObjectStores; |
| HashSet<RefPtr<MemoryIndex>> m_indexes; |
| HashSet<RefPtr<MemoryIndex>> m_versionChangeAddedIndexes; |
| |
| HashMap<MemoryObjectStore*, uint64_t> m_originalKeyGenerators; |
| HashMap<String, RefPtr<MemoryObjectStore>> m_deletedObjectStores; |
| HashMap<String, RefPtr<MemoryIndex>> m_deletedIndexes; |
| HashMap<MemoryObjectStore*, std::unique_ptr<KeyValueMap>> m_originalValues; |
| HashMap<MemoryObjectStore*, std::unique_ptr<KeyValueMap>> m_clearedKeyValueMaps; |
| HashMap<MemoryObjectStore*, std::unique_ptr<IDBKeyDataSet>> m_clearedOrderedKeys; |
| HashMap<MemoryObjectStore*, String> m_originalObjectStoreNames; |
| HashMap<MemoryIndex*, String> m_originalIndexNames; |
| HashMap<MemoryIndex*, std::unique_ptr<IndexValueStore>> m_clearedIndexValueStores; |
| }; |
| |
| } // namespace IDBServer |
| } // namespace WebCore |
| |
| #endif // ENABLE(INDEXED_DATABASE) |