On Wed, May 5, 2010 at 2:41 PM, Jeremy Shaw <jer...@n-heptane.com> wrote:
> > On May 4, 2010, at 11:20 PM, Michael Snoyman wrote: > > Hey Jeremy, > > I see below that you included the experimental WAI support. I'm excited to > try it out, but I don't see it in happstack-server (maybe I'm blind). Could > you point it out? > > > Hello, > > I should have been more explicit about this, sorry about that. The > experimental WAI support is only available via darcs, in the happstack-wai > sub-directory. > > darcs get http://patch-tag.com/r/mae/happstack > cd happstack/happstack-wai > > You can browse here: > > > http://www.patch-tag.com/r/mae/happstack/snapshot/current/content/pretty/happstack-wai > > The core is mostly there, though it is missing some of the Guards, and the > FileServe module. > > Probably less than a day to "finish" it off I guess. Would be nice to do > that now that 0.5 is out. > > The happstack-wai version would not be a drop-in replacement for > happstack-server. There are some differences, such as the wai version > supporting enumerators :) But, porting from happstack-server to > happstack-wai should not require major changes. > > What remains to be seen is if happstack-wai actually provides better > "performance" than happstack-server. > > alas, there is no happstack-wai specific demo at the moment. But, if there > was, it would look a lot like a normal happstack-server app... > > - jeremy > It wouldn't look like a normal WAI app? If you want something like that, Simon Hengel wrote a nice Hello World for WAI; it's available in the github repo[1]. As far as performance goes, I can't imagine you'd see any significant difference without an enumerator-biased test, but I could be wrong. If you want to try something, I'd suggest outputting the contents of a file (obviously without the sendfile syscall). If you want help writing a WAI version, let me know, I'd be interested in the results of a comparison. Michael [1] http://github.com/snoyberg/wai/blob/master/README.lhs
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