lmdbal/src/transaction.h

47 lines
1.2 KiB
C++

#pragma once
#include "base.h"
namespace LMDBAL {
class iStorage;
class Transaction {
friend class Base;
friend class iStorage;
public:
explicit Transaction();
explicit Transaction(Transaction&& other);
Transaction(const Transaction& other) = delete;
Transaction& operator = (const Transaction& other) = delete;
Transaction& operator = (Transaction&& other);
virtual ~Transaction();
void terminate();
bool isActive() const;
protected:
Transaction(TransactionID txn, const Base* parent);
protected:
TransactionID txn; /**<\brief Transaction inner handler*/
bool active; /**<\brief Transaction state*/
const Base* parent; /**<\brief Pointer to the database this transaction belongs to*/
};
class WriteTransaction : public Transaction {
friend class Base;
public:
explicit WriteTransaction();
explicit WriteTransaction(WriteTransaction&& other);
WriteTransaction(const WriteTransaction& other) = delete;
WriteTransaction& operator = (const WriteTransaction& other) = delete;
void commit();
void abort();
protected:
WriteTransaction(TransactionID txn, Base* parent);
};
}