a> <span>&#45;&gt;</span> <span>procname:<a href="../IR/Procname/index.html#type-t">IR.Procname.t</a></span> <span>&#45;&gt;</span> <span>loc:<a href="../IBase/Location/index.html#type-t">IBase.Location.t</a></span> <span>&#45;&gt;</span> <span><a href="index.html#module-Lock">Lock</a>.t list</span> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dd><p>simultaneously acquire a number of locks, no-op if list is empty</p></dd></dl><dl><dt class="spec value" id="val-release"><a href="#val-