Method writev

lib/internal/vfs/file_handle.js:294–305

* Writes data from multiple buffers to the file. * @param {Buffer[]} buffers The buffers to write from * @param {number|null} [position] The position to write to * @returns {Promise<{ bytesWritten: number, buffers: Buffer[] }>}

(buffers, position)

   * @returns {Promise<{ bytesWritten: number, buffers: Buffer[] }>}
   */
  async writev(buffers, position) {
    this.#checkClosed('writev');
    let totalWritten = 0;
    for (let i = 0; i < buffers.length; i++) {
      const buf = buffers[i];
      const pos = position != null ? position + totalWritten : null;
      const { bytesWritten } = await this.write(buf, 0, buf.byteLength, pos);
      totalWritten += bytesWritten;
      if (bytesWritten < buf.byteLength) break;
    }
    return { __proto__: null, bytesWritten: totalWritten, buffers };
  }

  /**
   * Appends data to the file.