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Class: ActiveRecord::ConnectionAdapters::QueryIntent::EventBuffer

Relationships & Source Files
Namespace Children
Classes:
DeferredHandle
Inherits: Object
Defined in: activerecord/lib/active_record/connection_adapters/query_intent.rb

Overview

Buffers instrumentation events during background execution for later publishing

Class Method Summary

Instance Method Summary

Constructor Details

.new(intent, instrumenter) ⇒ EventBuffer

[ GitHub ] 

  


# File 'activerecord/lib/active_record/connection_adapters/query_intent.rb', line 12



def initialize(intent, instrumenter)
  @intent = intent
  @instrumenter = instrumenter
  @events = []
end


  







Instance Method Details



  

    #add_event(event)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/query_intent.rb', line 31



def add_event(event)
  @events << event
end


  








  

    #build_handle(name, payload)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/query_intent.rb', line 27



def build_handle(name, payload)
  DeferredHandle.new(self, @instrumenter, name, payload)
end


  








  

    #flush  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/query_intent.rb', line 35



def flush
  events, @events = @events, []
  events.each do |event|
    event.payload[:lock_wait] = @intent.lock_wait
    ActiveSupport::Notifications.publish_event(event)
  end
end


  








  

    #instrument(name, payload = {}, &block)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/query_intent.rb', line 18



def instrument(name, payload = {}, &block)
  event = @instrumenter.new_event(name, payload)
  begin
    event.record(&block)
  ensure
    @events << event
  end
end