R1-constant.html">SIGUSR1</a></span>
          <span class="signature">&#8594; const <a href="dart-io/ProcessSignal-class.html">ProcessSignal</a></span>
                  </dt>
        <dd>
          
                  <div class="features">@<a href="dart-core/Deprecated-class.html">Deprecated</a>(&quot;Use sigusr1 instead&quot;)</div>
  <div>
            <span class="signature"><code>sigusr1</code></span>
          </div>
        </dd>
        <dt id="sigusr1" class="constant">
          <span class="name 