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| author |  Adam Chlipala <adamc@hcoop.net> | 2009-04-05 11:24:55 -0400 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2009-04-05 11:24:55 -0400 |
| commit | 37eeae6bc2503281d1b806c85aa0e70645fd9966 (patch) | |
| tree | 629c88474e3f44efa4384f199ee22debb4e240bd /demo/roundTrip.ur | |
| parent | 3b2a5f0903f59d0a58de4201ab4f16d34423bf25 (diff) | |
RoundTrip demo
Diffstat (limited to 'demo/roundTrip.ur')
| -rw-r--r-- | demo/roundTrip.ur | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/demo/roundTrip.ur b/demo/roundTrip.ur new file mode 100644 index 00000000..a2be8083 --- /dev/null +++ b/demo/roundTrip.ur @@ -0,0 +1,29 @@ +table channels : { Client : client, Channel : channel (string * int * float) } + +fun writeBack v = + me <- self; + r <- oneRow (SELECT channels.Channel FROM channels WHERE channels.Client = {[me]}); + send r.Channels.Channel v + +fun main () = + me <- self; + ch <- channel; + dml (INSERT INTO channels (Client, Channel) VALUES ({[me]}, {[ch]})); + + buf <- Buffer.create; + + let + fun receiver () = + v <- recv ch; + Buffer.write buf ("(" ^ v.1 ^ ", " ^ show v.2 ^ ", " ^ show v.3 ^ ")"); + receiver () + + fun sender s n f = + sleep 2000; + writeBack (s, n, f); + sender (s ^ "!") (n + 1) (f + 1.23) + in + return <xml><body onload={spawn (receiver ()); sender "" 0 0.0}> + <dyn signal={Buffer.render buf}/> + </body></xml> + end |