# File lib/vcr/configuration.rb, line 388
    def around_http_request(*filters, &block)
      unless VCR.fibers_available?
        raise Errors::NotSupportedError.new \
          "VCR::Configuration#around_http_request requires fibers, " +
          "which are not available on your ruby intepreter."
      end

      fibers = {}
      fiber_errors = {}
      hook_allowed, hook_declaration = false, caller.first
      before_http_request(*filters) do |request|
        hook_allowed = true
        start_new_fiber_for(request, fibers, fiber_errors, hook_declaration, block)
      end

      after_http_request(lambda { hook_allowed }) do |request, response|
        fiber = fibers.delete(Thread.current)
        resume_fiber(fiber, fiber_errors, response, hook_declaration)
      end
    end