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diff tests/goodbye.ur @ 1707:c05e2e4bdde7

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Refactor to avoid dependence on recursive mutexes
author Adam Chlipala <adam@chlipala.net>
date Sun, 08 Apr 2012 16:24:16 -0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/goodbye.ur	Sun Apr 08 16:24:16 2012 -0400
@@ -0,0 +1,26 @@
+table boo : { Client : client, Channel : channel unit }
+
+fun doIt () =
+    me <- self;
+    ch <- channel;
+    dml (INSERT INTO boo (Client, Channel) VALUES ({[me]}, {[ch]}));
+    return <xml><body onload={let
+                                  fun loop () =
+                                      v <- recv ch;
+                                      alert "Someone left";
+                                      loop ()
+                              in
+                                  loop ()
+                              end}/></xml>
+
+task clientLeaves = fn cl =>
+                       debug "Client left";
+                       dml (DELETE FROM boo WHERE Client = {[cl]});
+                       queryI (SELECT (boo.Channel)
+                               FROM boo)
+                       (fn r => send r.1 ());
+                       debug "Done processing"
+
+fun main () = return <xml><body>
+  <form> <submit action={doIt}/> </form>
+</body></xml>