export module io;

import std;

namespace brc {

export [[nodiscard]] std::string read_file(const std::filesystem::path& path);

export class mapped_file {
private:
	int fd;
	void* data = nullptr;
	std::size_t length = 0;

public:
	explicit mapped_file(const std::filesystem::path& path);

	mapped_file(const mapped_file&) = delete;
	mapped_file& operator=(const mapped_file&) = delete;

	mapped_file(mapped_file&& rhs) noexcept;
	mapped_file& operator=(mapped_file&& rhs) noexcept;

	~mapped_file();

	operator std::string_view() const noexcept;

	[[nodiscard]] std::size_t size() const noexcept;
};

}  // namespace brc