<span class="sect1">
                  <a href="blocking_deadlocks.html">Locks, Blocks, and Deadlocks</a>
                </span>
              </dt>
              <dd>
                <dl>
                  <dt>
                    <span class="sect2">
                      <a href="blocking_deadlocks.html#locks">Locks</a>
                    </span>
                  </dt>
                  <dt>
                    <span class="sect2">
                      <a href="blocking_deadlocks.html#blocks">Blocks<