Function createFileStats

lib/internal/vfs/stats.js:95–140

* Creates a Stats object for a virtual file. * @param {number} size The file size in bytes * @param {object} [options] Optional stat properties * @param {number} [options.mode] File mode (default: 0o644) * @param {number} [options.uid] User ID (default: process.getuid() or 0) * @param {number}

(size, options = kEmptyObject)

 * @returns {Stats}
 */
function createFileStats(size, options = kEmptyObject) {
  const now = DateNow();
  const mode = (options.mode ?? 0o644) | S_IFREG;
  const nlink = options.nlink ?? 1;
  const uid = options.uid ?? (process.getuid?.() ?? 0);
  const gid = options.gid ?? (process.getgid?.() ?? 0);
  const atimeMs = options.atimeMs ?? now;
  const mtimeMs = options.mtimeMs ?? now;
  const ctimeMs = options.ctimeMs ?? now;
  const birthtimeMs = options.birthtimeMs ?? now;
  const blocks = MathCeil(size / 512);
  const ino = inoCounter++;

  const atime = msToTimeSpec(atimeMs);
  const mtime = msToTimeSpec(mtimeMs);
  const ctime = msToTimeSpec(ctimeMs);
  const birthtime = msToTimeSpec(birthtimeMs);

  if (options.bigint) {
    return fillBigIntStatsArray(
      kVfsDev, mode, nlink, uid, gid, 0, kDefaultBlockSize, ino,
      size, blocks, atime, mtime, ctime, birthtime,
    );
  }

  statsArray[0] = kVfsDev;        // dev
  statsArray[1] = mode;           // mode
  statsArray[2] = nlink;          // nlink
  statsArray[3] = uid;            // uid
  statsArray[4] = gid;            // gid
  statsArray[5] = 0;              // rdev
  statsArray[6] = kDefaultBlockSize; // blksize
  statsArray[7] = ino;            // ino
  statsArray[8] = size;           // size
  statsArray[9] = blocks;         // blocks
  statsArray[10] = atime.sec;     // atime_sec
  statsArray[11] = atime.nsec;    // atime_nsec
  statsArray[12] = mtime.sec;     // mtime_sec
  statsArray[13] = mtime.nsec;    // mtime_nsec
  statsArray[14] = ctime.sec;     // ctime_sec
  statsArray[15] = ctime.nsec;    // ctime_nsec
  statsArray[16] = birthtime.sec; // birthtime_sec
  statsArray[17] = birthtime.nsec; // birthtime_nsec

  return getStatsFromBinding(statsArray);
}

/**
 * Creates a Stats object for a virtual directory.