Method fstat

lib/internal/vfs/file_system.js:882–896

* Gets file stats from a file descriptor asynchronously. * @param {number} fd The file descriptor * @param {object|Function} [options] Options or callback * @param {Function} [callback] Callback (err, stats)

(fd, options, callback)

   * @param {Function} [callback] Callback (err, stats)
   */
  fstat(fd, options, callback) {
    if (typeof options === 'function') {
      callback = options;
      options = undefined;
    }

    const vfd = getVirtualFd(fd);
    if (!vfd) {
      process.nextTick(callback, createEBADF('fstat'));
      return;
    }

    vfd.entry.stat(options)
      .then((stats) => callback(null, stats), (err) => callback(err));
  }

  /**
   * Truncates a file asynchronously.