a Pool implicitly frees all chunks that have been
        allocated from it.
      </p>
<p>
        Singleton Usage is the method where each Pool is an object with static duration;
        that is, it will not be destroyed until program exit. Pool objects with Singleton
        Usage may be shared; thus, Singleton Usage implies thread-safety as well.
        System memory allocated by Pool objects with Singleton Usage may be freed
        through release_memory or purge_memory.
      </p>
<h6>
<a name="boos