sary until no other thread has exclusive or sharable ownership of the mutex or abs_time is reached. Returns: If acquires exclusive ownership, returns true. Otherwise returns false. Throws: <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> on error. </p>
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<pre class="literallayout"><span class="keyword">void</span> <a name="idp57170928-bb"></a><span class="identifier">unlock</span><