import koffi from 'koffi';
declare module 'koffi' {
    /**
     * Zero-copy view into native memory. Introduced in 2.11, but not in the type hints yet.
     * @param ptr    Pointer returned by mmap / malloc / etc.
     * @param length Number of bytes to expose
     * @returns      A Node-style ArrayBuffer backed by that memory
     */
    function view(ptr: unknown, length: number): ArrayBuffer;
}
export declare const O_CREAT = 512;
export declare const O_RDWR = 2;
export declare const PROT_READ = 1;
export declare const PROT_WRITE = 2;
export declare const MAP_SHARED = 1;
export declare class LibcWrapper {
    private _shm_open;
    private _ftruncate;
    private _close;
    private _mmap;
    constructor(libc: koffi.IKoffiLib);
    shmOpen(name: string, flags: number, mode: number): number;
    fTruncate(fd: number, length: number): number;
    close(fd: number): number;
    mmapToArrayBuffer(fd: number, size: number): ArrayBuffer;
}