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<title>Logtalk built-in predicate: threaded_exit/2</title>
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<div class="top-left">Logtalk reference manual</div>
<div class="top-right">Built-in predicate: threaded_exit/2</div>
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<h2 class="codenp">threaded_exit/2<span id="builtins_threaded_exit2"/></h2>
<h4>Description</h4>
<pre>threaded_exit(Goal, Options)</pre>
<p>
Retrieve the result of proving <code>Goal</code> in a new thread. By default, this call blocks execution until the reply is sent to the <em>this</em> thread by the thread executing the goal. This predicate is non-deterministic, providing access to the alternative solutions of its first argument. The option <code>peek</code> may be used to check if the reply is already available on the <em>this</em> thread. The option <code>discard</code> may be used to discard all matching replies.
</p>
<h4>Template and modes</h4>
<pre>threaded_exit(+callable, +list)</pre>
<h4>Examples</h4>
<dl>
<dt>To retrieve the goal proof result:</dt>
<dd><code>threaded_exit(Goal, List)</code></dd>
<dt>To retrieve the message result:</dt>
<dd><code>threaded_exit(::Goal, List)</code></dd>
<dt>To retrieve the message result:</dt>
<dd><code>threaded_exit(Object::Goal, List)</code></dd>
</dl>
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<span>Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://logtalk.org">Logtalk.org</a></span><br/>
<span>Last updated on: October 26, 2006</span>
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