s.basic_channel_logger.open_record_lock"></a><span class="identifier">open_record_lock</span><span class="special">;</span>   <span class="comment">// Lock requirement for the <code class="computeroutput">open_record_unlocked</code> method. </span>
  <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>                                  <a name="boost.log.sources.basic_channel_logger.swap_lock"></a><span class="identifier">swap_lock</span><spa