File.hpp

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// ======================================================================
// \title Os/Posix/File.hpp
// \brief posix implementation for Os::File, header and test definitions
// ======================================================================
#include <Os/File.hpp>
#ifndef OS_POSIX_FILE_HPP
#define OS_POSIX_FILE_HPP

#include <sys/stat.h>

namespace Os {
namespace Posix {
namespace File {

struct PosixFileHandle : public FileHandle {
    static constexpr int INVALID_FILE_DESCRIPTOR = -1;
    static constexpr int ERROR_RETURN_VALUE = -1;

    int m_file_descriptor = INVALID_FILE_DESCRIPTOR;
};

class PosixFile : public FileInterface {
  public:
    PosixFile() = default;

    PosixFile(const PosixFile& other);

    PosixFile& operator=(const PosixFile& other);

    ~PosixFile() override = default;

    // ------------------------------------
    // Functions overrides
    // ------------------------------------

    Os::FileInterface::Status open(const char* path, Mode mode, OverwriteType overwrite) override;

    void close() override;

    Status size(FwSizeType& size_result) override;

    Status position(FwSizeType& position_result) override;

    Status preallocate(FwSizeType offset, FwSizeType length) override;

    Status seek(FwSignedSizeType offset, SeekType seekType) override;

    Status flush() override;

    Status read(U8* buffer, FwSizeType& size, WaitType wait) override;

    Status write(const U8* buffer, FwSizeType& size, WaitType wait) override;

    FileHandle* getHandle() override;

  private:
    static mode_t map_open_create_mode(const U32 create_mode);

  private:
    PosixFileHandle m_handle;
};
}  // namespace File
}  // namespace Posix
}  // namespace Os

#endif  // OS_POSIX_FILE_HPP