Method done

lib/internal/js_stream_socket.js:205–221

(err)

    this[kCurrentWriteRequest] = req;

    function done(err) {
      if (!err && --pending !== 0)
        return;

      // Ensure that this is called once in case of error
      pending = 0;

      let errCode = 0;
      if (err) {
        errCode = uv[`UV_${err.code}`] || uv.UV_EPIPE;
      }

      // Ensure that write was dispatched
      setImmediate(() => {
        self.finishWrite(handle, errCode);
      });
    }

    return 0;
  }