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+<title>Channels (The Chickadee Game Toolkit)</title>
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+<a name="Channels"></a>
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+<p>
+Previous: <a href="Tweening.html#Tweening" accesskey="p" rel="prev">Tweening</a>, Up: <a href="Scripting.html#Scripting" accesskey="u" rel="up">Scripting</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<a name="Channels-1"></a>
+<h4 class="subsection">2.4.4 Channels</h4>
+
+<p>Channels are a tool for communicating amongst different scripts.  One
+script can write a value to the channel and another can read from it.
+Reading or writing to a channel suspends that script until there is
+someone on the other end of the line to complete the transaction.
+</p>
+<p>Here&rsquo;s a simplistic example:
+</p>
+<div class="example">
+<pre class="example">(define c (make-channel))
+
+(script
+ (forever
+  (let ((item (channel-get c)))
+    (pk 'got item))))
+
+(script
+ (channel-put c 'sword)
+ (channel-put c 'shield)
+ (channel-put c 'potion))
+</pre></div>
+
+<dl>
+<dt><a name="index-make_002dchannel"></a>Procedure: <strong>make-channel</strong></dt>
+<dd><p>Return a new channel
+</p></dd></dl>
+
+<dl>
+<dt><a name="index-channel_003f"></a>Procedure: <strong>channel?</strong> <em><var>obj</var></em></dt>
+<dd><p>Return <code>#t</code> if <var>obj</var> is a channel.
+</p></dd></dl>
+
+<dl>
+<dt><a name="index-channel_002dget-1"></a>Procedure: <strong>channel-get</strong> <em><var>channel</var></em></dt>
+<dd><p>Retrieve a value from <var>channel</var>.  The current script suspends
+until a value is available.
+</p></dd></dl>
+
+<dl>
+<dt><a name="index-channel_002dput"></a>Procedure: <strong>channel-put</strong> <em><var>channel</var> <var>data</var></em></dt>
+<dd><p>Send <var>data</var> to <var>channel</var>.  The current script suspends until
+another script is available to retrieve the value.
+</p></dd></dl>
+
+
+
+
+</body>
+</html>