Hookable Thread Abort (for RQL cleanup) + Per Endpoint Timeouts + Dynamic Timeouts

[0exp]

hookable thread abort:

Rack::Timeout.add_on_thread_abort_hook  do |thread, app, env|
  # do something
end

per-endpoint timeouts:

Rack::Timeout.set_per_endpoint_service_timeout("/some/endpoint", 30) # in seconds

dynamic timeouts:

Rack::Timeout.dynamic_service_timeout = proc do |rack_request, rack_env|
   # rack_request is a Rack::Request
   # rack_env is a raw Rack's env variable from middleware stack

   # calculate Integer value (in seconds) or nil (treats as service_timeout)
end