SQLTransactionBackend.h   [plain text]

/*
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#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