block_device.hpp

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#pragma once
 
#include <cstddef>
#include <cstdint>
 
#include "expected.hpp"
 
namespace vfs {
 
class BlockDevice {
 public:
  virtual ~BlockDevice() = default;
 
  [[nodiscard]] virtual auto ReadSectors(uint64_t sector_start,
                                         uint32_t sector_count, void* buffer)
      -> Expected<size_t> = 0;
 
  [[nodiscard]] virtual auto WriteSectors(uint64_t sector_start,
                                          uint32_t sector_count,
                                          const void* buffer)
      -> Expected<size_t> = 0;
 
  [[nodiscard]] virtual auto GetSectorSize() const -> uint32_t = 0;
 
  [[nodiscard]] virtual auto GetSectorCount() const -> uint64_t = 0;
 
  [[nodiscard]] virtual auto GetName() const -> const char* = 0;
 
  [[nodiscard]] virtual auto Flush() -> Expected<void> { return {}; }
};
 
}  // namespace vfs