Mercurial > urweb
view tests/spawn.ur @ 2209:0ca11d57c175
Cleans up interface (it's now a command line option) and renames project to "sqlcache" in the all-one-word style. Still has issues to do with concurrency, retrying transactions, and foreign function calls that either rely on state or have side effects.
author | Ziv Scully <ziv@mit.edu> |
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date | Sat, 31 May 2014 03:08:16 -0400 |
parents | 7ea0df9e56b6 |
children |
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table t : {A : int, Ch : channel string} fun listener n ch = s <- recv ch; alert (show n ^ ": " ^ s); listener n ch fun speak id msg = r <- oneRow (SELECT t.Ch FROM t WHERE t.A = {[id]}); send r.T.Ch msg fun main () : transaction page = ch1 <- channel; dml (INSERT INTO t (A, Ch) VALUES (1, {[ch1]})); ch2 <- channel; dml (INSERT INTO t (A, Ch) VALUES (2, {[ch2]})); s1 <- source ""; s2 <- source ""; return <xml><body onload={spawn (listener 1 ch1); spawn (listener 2 ch2)}> 1: <ctextbox source={s1}/><button onclick={msg <- get s1; speak 1 msg}/><br/> 2: <ctextbox source={s2}/><button onclick={msg <- get s2; speak 2 msg}/> </body></xml>