Ur/Web: demo/threads.ur annotate

A few error message improvements

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 02 Aug 2011 13:48:26 -0400
parents	755a71c99be5
children

rev	line source
adamc@697	1 fun main () =
adamc@697	2 buf <- Buffer.create;
adamc@697	3 let
adamc@697	4 fun loop prefix delay =
adamc@697	5 let
adamc@697	6 fun loop' n =
adamc@697	7 Buffer.write buf (prefix ^ ": Message #" ^ show n);
adamc@697	8 sleep delay;
adamc@697	9 loop' (n + 1)
adamc@697	10 in
adamc@697	11 loop'
adamc@697	12 end
adamc@697	13 in
adamc@697	14 return <xml><body onload={spawn (loop "A" 5000 0); spawn (loop "B" 3000 100)}>
adamc@697	15 <dyn signal={Buffer.render buf}/>
adamc@697	16 </body></xml>
adamc@697	17 end

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