Function writev

lib/internal/fs/promises.js:911–943

(chunks, options = kNullPrototo)

      },

      writev(chunks, options = kNullPrototo) {
        if (error) {
          return PromiseReject(error);
        }
        if (closed) {
          return PromiseReject(
            new ERR_INVALID_STATE.TypeError('The writer is closed'));
        }
        validateObject(options, 'options');
        const {
          signal,
        } = options;
        if (signal !== undefined) {
          validateAbortSignal(signal, 'options.signal');
          if (signal?.aborted) {
            return PromiseReject(signal.reason);
          }
        }
        chunks = newStreamsConvertChunks(chunks);
        let totalSize = 0;
        for (let i = 0; i < chunks.length; i++) {
          totalSize += chunks[i].byteLength;
        }
        if (bytesRemaining >= 0 && totalSize > bytesRemaining) {
          return PromiseReject(
            new ERR_OUT_OF_RANGE('writev', `<= ${bytesRemaining} bytes`,
                                 totalSize));
        }
        if (bytesRemaining > 0) bytesRemaining -= totalSize;
        const position = pos;
        if (pos >= 0) pos += totalSize;
        return writevAll(chunks, position, signal);
      },

      writeSync(chunk) {
        if (error || closed || asyncPending) return false;