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diff examples/countdown.ur @ 17:2947170fcfd6

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Fix sign error in clock skew correction
author Adam Chlipala <adam@chlipala.net>
date Sun, 21 Aug 2011 11:27:41 -0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/countdown.ur	Sun Aug 21 11:27:41 2011 -0400
@@ -0,0 +1,14 @@
+fun main () : transaction page =
+    start <- now;
+    deadline <- return (addSeconds start 60);
+    cl <- Clock.create 500;
+    return <xml><body onload={Clock.start cl}>
+      <dyn signal={cl <- Clock.signal cl;
+                   return <xml>
+                     {[cl]}<br/>
+                     {if cl > deadline then
+                          <xml><b>Expired</b></xml>
+                      else
+                          <xml>{[diffInSeconds cl deadline]}</xml>}
+                   </xml>}/>
+    </body></xml>