isallowed, as they may be used by the VM.</p>
<p>A signal can be watched multiple times, from multiple isolates, where all
callbacks are invoked when signaled, in no specific order.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">Stream&lt;ProcessSignal&gt; watch() =&gt; _ProcessUtils._watchSignal(this);</code></pre>
    </section>

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