Module: Instrumental

Defined in:
lib/instrumental.rb,
lib/instrumental/agent.rb,
lib/instrumental/railtie.rb,
lib/instrumental/configuration.rb,
lib/instrumental/intervalometer.rb

Defined Under Namespace

Classes: Agent, Configuration, Intervalometer, Railtie

Class Method Summary collapse

Class Method Details

.boot! ⇒ Object 



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# File 'lib/instrumental.rb', line 15

def self.boot!
  if @config.enabled?

    if defined?(PhusionPassenger)
      PhusionPassenger.on_event(:starting_worker_process) do
        @config.logger.debug('Starting a new worker process')
        Agent.instance.setup_and_run
      end

      PhusionPassenger.on_event(:stopping_worker_process) do
        @config.logger.debug('Killing worker process')
        Agent.instance.stop
      end

    else
      @config.logger.debug('Starting a new worker process')
      Agent.instance.setup_and_run
    end
  end
end

.config ⇒ Object 



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# File 'lib/instrumental.rb', line 36

def self.config
  @config
end

.configure {|@config| ... } ⇒ Object

Yields:



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# File 'lib/instrumental.rb', line 11

def self.configure
  yield @config
end

.count(name, value = 1) ⇒ Object 



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# File 'lib/instrumental.rb', line 40

def self.count(name, value=1)
  Agent.instance.report(:count, name, value)
end

.measure(name, value) ⇒ Object 



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# File 'lib/instrumental.rb', line 44

def self.measure(name, value)
  Agent.instance.report(:measure, name, value)
end

.milestone(name) ⇒ Object 



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# File 'lib/instrumental.rb', line 54

def self.milestone(name)
  Agent.instance.milestone(name)
end

.timer(name) ⇒ Object 



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# File 'lib/instrumental.rb', line 48

def self.timer(name)
  start_time = Time.now
  yield
  self.measure(name, (Time.now - start_time) * 1000) # milliseconds
end