Call For Help

Update 2: I wrapped $stderr in another class that meets the Rack spec, and now everything is OK. phew!

Update: it seems Rails is closing the logger, which is using the rack.errors value that I provide (which is $stderr, just like most Rack servers use). I've tried setting IO#autoclose = false but that had no effect. A workaround does exist - in environment.rb you can set config.logger = Logger.new(STDOUT), but that's a hack to get around the root problem that the rack.errors IO that I provide is blowing up in Rails.

The server works for basic Rack apps and Sinatra apps - everything in the examples/ folder. However, Rails really throws me for a loop. I've tested with 2.3.10 and 3.0.3, and both give variations on the same error, something about a bad file descriptor. I've read the source code for most all the Rack handlers as well as some of the Rails middleware, but I don't see anything to tell me what's wrong. I think it might be logging related, but I really have no idea.

Of course, there's a lot of polish to be done as well, but I would really like to get it to WORK first. :)

I'm working on the develop branch (using the https://github.com/nvie/gitflow style of Git dev workflow). Please help, especially if you understand all the crazy stuff Rails does with Rack and aren't afraid of JRuby internals.

HELP!