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| author |  Adam Chlipala <adam@chlipala.net> | 2013-12-27 12:10:03 -0500 |
|---|---|---|
| committer | Adam Chlipala <adam@chlipala.net> | 2013-12-27 12:10:03 -0500 |
| commit | ee16149ddef734c9945ff0339300fd926ca91b1a (patch) | |
| tree | 85f0265a4778128dee390ef80d943cc6c5b0669f /tests/channelThief.ur | |
| parent | 8ebc8340ebc13704014d5b2a3bbcd453786162c8 (diff) | |
Raise exception when recv()ing from someone else's channel; improve setting of client ID in RPCs
Diffstat (limited to 'tests/channelThief.ur')
| -rw-r--r-- | tests/channelThief.ur | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/channelThief.ur b/tests/channelThief.ur new file mode 100644 index 00000000..1893979a --- /dev/null +++ b/tests/channelThief.ur @@ -0,0 +1,32 @@ +table t : { Ch : channel string } + +fun go () = + let + fun overwrite () = + dml (DELETE FROM t WHERE TRUE); + ch <- channel; + dml (INSERT INTO t (Ch) VALUES ({[ch]})); + return ch + + fun retrieve () = + oneRowE1 (SELECT (t.Ch) FROM t) + + fun transmit () = + ch <- retrieve (); + send ch "Test" + + fun listenOn ch = + s <- recv ch; + alert s + in + ch <- overwrite (); + return <xml><body onload={listenOn ch}> + <button value="overwrite" onclick={fn _ => ch <- rpc (overwrite ()); listenOn ch}/> + <button value="retrieve" onclick={fn _ => ch <- rpc (retrieve ()); listenOn ch}/> + <button value="transmit" onclick={fn _ => rpc (transmit ())}/> + </body></xml> + end + +fun main () = return <xml><body> + <form><submit action={go}/></form> +</body></xml> |