Function onsendConcat

benchmark/dgram/array-vs-concat.js:30–40

()

  const onsend = type === 'concat' ? onsendConcat : onsendMulti;

  function onsendConcat() {
    if (sent++ % n === 0) {
      // The setImmediate() is necessary to have event loop progress on OSes
      // that only perform synchronous I/O on nonblocking UDP sockets.
      setImmediate(() => {
        for (let i = 0; i < n; i++) {
          socket.send(Buffer.concat(chunk), PORT, '127.0.0.1', onsend);
        }
      });
    }
  }

  function onsendMulti() {
    if (sent++ % n === 0) {