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#pragma once
#include <Backups/IBackupEntry.h>
namespace DB
{
/// Calculates the checksum and the partial checksum for a backup entry based on ReadBuffer returned by getReadBuffer().
template <typename Base>
class BackupEntryWithChecksumCalculation : public Base
{
public:
UInt128 getChecksum(const ReadSettings & read_settings) const override;
std::optional<UInt128> getPartialChecksum(size_t prefix_length, const ReadSettings & read_settings) const override;
private:
mutable std::optional<UInt128> calculated_checksum;
mutable std::mutex checksum_calculation_mutex;
};
}
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