mutex</span><span class='period'>.</span><span class='id identifier rubyid_synchronize'>synchronize</span> <span class='kw'>do</span>
    <span class='cvar'>@@instance</span> <span class='op'>||=</span> <span class='id identifier rubyid_new'>new</span>
  <span class='kw'>end</span>
<span class='kw'>end</span></pre>
    </td>
  </tr>
</table>
</div>
    
  </div>

  <div id="instance_method_details" class="method_details_list">
    <h2>Instance Method Details</h2>

    
      <div class="method_details first