Mercurial > urweb
view tests/buffer.ur @ 1931:1a04b1edded2
Fix regression in http.c for long-polling connections; add lazy initialization of database connections, to avoid the overhead in handlers that don't use SQL
author | Adam Chlipala <adam@chlipala.net> |
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date | Wed, 11 Dec 2013 14:57:54 -0500 |
parents | 2197f0e24a9f |
children |
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datatype lines = End | Line of string * source lines type t = { Head : source lines, Tail : source (source lines) } val create = head <- source End; tail <- source head; return {Head = head, Tail = tail} fun renderL lines = case lines of End => <xml/> | Line (line, linesS) => <xml>{[line]}<br/><dyn signal={renderS linesS}/></xml> and renderS linesS = lines <- signal linesS; return (renderL lines) fun render t = renderS t.Head fun write t s = oldTail <- get t.Tail; newTail <- source End; set oldTail (Line (s, newTail)); set t.Tail newTail