Method push

examples/qmidiin.cpp:40–52

  std::unique_ptr<message[]> ring{};

  bool push(const message& msg)
  {
    auto [sz, _, b] = get_dimensions();

    if (sz < ringSize - 1)
    {
      ring[b] = msg;
      back = (back + 1) % ringSize;
      return true;
    }

    return false;
  }

  bool pop(message& msg)
  {