MemoryBackingStoreTransaction.h [plain text]
#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 {
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;
};
} }
#endif // ENABLE(INDEXED_DATABASE)