#pragma once
#include <base/Types.hpp>
#include <base/ErrorOr.hpp>

namespace lightningbolt {

    /// A read-only file opened via memory mapping.
    /// On POSIX systems, we use mmap(2). Etc etc.
    struct MmapFile {
        MmapFile();
        ~MmapFile();

        // Opens for read-only mode.
        ErrorOr<void> Open(const fs::path& path);
        void Close();

        u8* GetMapping() const;
        usize GetMappingSize() const;

    private:
        struct Impl;
        Unique<Impl> impl;
    };

}