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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#if ZEN_PLATFORM_WINDOWS
# include <zencore/windows.h>
# include <zencore/zencore.h>
ZEN_THIRD_PARTY_INCLUDES_START
# include <winioctl.h>
ZEN_THIRD_PARTY_INCLUDES_END
# include <filesystem>
namespace zen {
class UsnJournalReader
{
public:
UsnJournalReader();
~UsnJournalReader();
bool Initialize(std::filesystem::path VolumePath);
private:
void* m_VolumeHandle;
READ_USN_JOURNAL_DATA_V1 m_ReadUsnJournalData;
bool m_IncursSeekPenalty = true;
uint8_t* m_JournalReadBuffer = nullptr;
uint64_t m_ReadBufferSize = 64 * 1024;
struct Frn
{
uint8_t IdBytes[16];
Frn() = default;
Frn(const FILE_ID_128& Rhs) { memcpy(IdBytes, Rhs.Identifier, sizeof IdBytes); }
Frn& operator=(const FILE_ID_128& Rhs) { memcpy(IdBytes, Rhs.Identifier, sizeof IdBytes); }
Frn(const uint64_t& Rhs)
{
memcpy(IdBytes, &Rhs, sizeof Rhs);
memset(&IdBytes[8], 0, 8);
}
Frn& operator=(const uint64_t& Rhs)
{
memcpy(IdBytes, &Rhs, sizeof Rhs);
memset(&IdBytes[8], 0, 8);
}
std::strong_ordering operator<=>(const Frn&) const = default;
};
enum class FileSystemType
{
ReFS,
NTFS
};
FileSystemType m_FileSystemType = FileSystemType::NTFS;
};
} // namespace zen
#endif // ZEN_PLATFORM_WINDOWS
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