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diff demo/threads.ur @ 697:755a71c99be5

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Threads demo
author Adam Chlipala <adamc@hcoop.net>
date Sun, 05 Apr 2009 10:48:11 -0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demo/threads.ur	Sun Apr 05 10:48:11 2009 -0400
@@ -0,0 +1,17 @@
+fun main () =
+    buf <- Buffer.create;
+    let
+        fun loop prefix delay =
+            let
+                fun loop' n =
+                    Buffer.write buf (prefix ^ ": Message #" ^ show n);
+                    sleep delay;
+                    loop' (n + 1)
+            in
+                loop'
+            end
+    in
+        return <xml><body onload={spawn (loop "A" 5000 0); spawn (loop "B" 3000 100)}>
+          <dyn signal={Buffer.render buf}/>
+        </body></xml>
+    end