Class: Tennpipes::Reloader::Rack

Inherits:
Object
  • Object
show all
Defined in:
lib/tennpipes-base/reloader/rack.rb

Overview

This class acts as a Rack middleware to be added to the application stack. This middleware performs a check and reload for source files at the start of each request, but also respects a specified cool down time during which no further action will be taken.

Instance Method Summary collapse

Constructor Details

#initialize(app, cooldown = 1) ⇒ Rack

Returns a new instance of Rack.



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# File 'lib/tennpipes-base/reloader/rack.rb', line 10

def initialize(app, cooldown=1)
  @app = app
  @cooldown = cooldown
  @last = (Time.now - cooldown)
end

Instance Method Details

#call(env) ⇒ Object

Invoked in order to perform the reload as part of the request stack.



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# File 'lib/tennpipes-base/reloader/rack.rb', line 17

def call(env)
  if @cooldown && Time.now > @last + @cooldown
    Thread.list.size > 1 ? Thread.exclusive { Tennpipes.reload! } : Tennpipes.reload!
    @last = Time.now
  end
  @app.call(env)
end