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CLK/Storage/MassStorage/Formats/RawSectorDump.hpp
2021-05-13 19:11:19 -04:00

56 lines
1.3 KiB
C++

//
// RawSectorDump.hpp
// Clock Signal
//
// Created by Thomas Harte on 01/05/2021.
// Copyright © 2021 Thomas Harte. All rights reserved.
//
#ifndef RawSectorDump_h
#define RawSectorDump_h
#include "../MassStorageDevice.hpp"
#include "../../FileHolder.hpp"
#include <cassert>
namespace Storage {
namespace MassStorage {
template <size_t sector_size> class RawSectorDump: public MassStorageDevice {
public:
RawSectorDump(const std::string &file_name) : file_(file_name) {
// Is the file a multiple of sector_size bytes in size?
const auto file_size = size_t(file_.stats().st_size);
if(file_size % sector_size) throw std::exception();
}
/* MassStorageDevices overrides. */
size_t get_block_size() final {
return sector_size;
}
size_t get_number_of_blocks() final {
return size_t(file_.stats().st_size) / sector_size;
}
std::vector<uint8_t> get_block(size_t address) final {
file_.seek(long(address * sector_size), SEEK_SET);
return file_.read(sector_size);
}
void set_block(size_t address, const std::vector<uint8_t> &contents) final {
assert(contents.size() == sector_size);
file_.seek(long(address * sector_size), SEEK_SET);
file_.write(contents);
}
private:
FileHolder file_;
};
}
}
#endif /* RawSectorDump_h */