Module: TingYun::Agent::MethodTracer

Defined in:
lib/ting_yun/agent/method_tracer.rb

Overview

This module contains class methods added to support installing custom metric tracers and executing for individual metrics.

Examples

When the agent initializes, it extends Module with these methods. However if you want to use the API in code that might get loaded before the agent is initialized you will need to require this file:

require 'ting_yun/agent/method_tracer'
class A
  include TingYun::Agent::MethodTracer
  def process
    ...
  end
  add_method_tracer :process
end

To instrument a class method:

require 'ting_yun/agent/method_tracer'
class An
  def self.process
    ...
  end
  class << self
    include TingYun::Agent::MethodTracer
    add_method_tracer :process
  end
end

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Class Method Details

.extended(klass) ⇒ Object 



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# File 'lib/ting_yun/agent/method_tracer.rb', line 53

def self.extended klass
  klass.extend ClassMethods
end

.included(klass) ⇒ Object 



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# File 'lib/ting_yun/agent/method_tracer.rb', line 49

def self.included klass
  klass.extend ClassMethods
end

.trace_execution_scoped(metric_names, options = {}, callback = nil) ⇒ Object

THREAD_LOCAL_ACCESS



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# File 'lib/ting_yun/agent/method_tracer.rb', line 58

def self.trace_execution_scoped(metric_names, options={}, callback = nil) #THREAD_LOCAL_ACCESS
  TingYun::Agent::MethodTracerHelpers.trace_execution_scoped(metric_names, options, callback) do
    # Using an implicit block avoids object allocation for a &block param
    yield
  end
end