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<p>You must invoke this ctor (instantiate us) if and only if synchronized dtor execution is indeed required; and <code>*this_session</code> has just reached PEER state. </p>
<p >Invoke from thread W only.</p>
<h3>How <code>master_channel</code> shall be touched by <code>*this</code></h3>
<p >We're being very explicit about this, since there's some inter-class private-state sharing going on... generally not the most stable or stylistically-amazing situation....</p><ul>
<li>This ctor will <code>.