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#pragma once
#include <string>
#include <QString>
class Storage {
public:
enum TransactionType { ReadOnly, ReadWrite };
Storage(const QString &storageRoot, const QString &name);
~Storage();
bool isInTransaction() const;
bool startTransaction(TransactionType type = ReadWrite);
bool commitTransaction();
void abortTransaction();
bool write(const char *key, size_t keySize, const char *value, size_t valueSize);
bool write(const std::string &sKey, const std::string &sValue);
//Perhaps prefer iterators (assuming we need to be able to match multiple values
bool read(const std::string &sKey, const std::function<void(const std::string &value)> &);
bool read(const std::string &sKey, const std::function<void(void *ptr, int size)> &);
qint64 diskUsage() const;
void removeFromDisk() const;
private:
class Private;
Private * const d;
};
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