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#pragma once
#include "coding/reader.hpp"
#include <cstddef>
#include <cstdint>
#include <memory>
#include <string>
/// @TODO Add Windows support
class MmapReader : public ModelReader
{
public:
explicit MmapReader(std::string const & fileName);
uint64_t Size() const override;
void Read(uint64_t pos, void * p, size_t size) const override;
std::unique_ptr<Reader> CreateSubReader(uint64_t pos, uint64_t size) const override;
/// Direct file/memory access
uint8_t * Data() const;
protected:
// Used in special derived readers.
void SetOffsetAndSize(uint64_t offset, uint64_t size);
private:
using base_type = ModelReader;
class MmapData;
MmapReader(MmapReader const & reader, uint64_t offset, uint64_t size);
std::shared_ptr<MmapData> m_data;
uint64_t m_offset;
uint64_t m_size;
};
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