void updateEnv( final RubyHash env, final Request request )
{
env.put( "rack.version", Version.RACK );
env.put( "rack.input", getRackInput() );
env.put( "rack.errors", new RubyIORackErrors( _runtime ) );
env.put( "rack.multithread", true );
env.put( "rack.multiprocess", false );
env.put( "rack.run_once", false );
env.put( "rack.url_scheme", request.getUrl().getProtocol() );
}