Module: Contrast::Agent::AtExitHook

Includes:
Components::Interface
Defined in:
lib/contrast/agent/at_exit_hook.rb

Overview

This module adds an at_exit hook for us to send messages that may be lost at process exit

Class Method Summary collapse

Methods included from Components::Interface

included

Class Method Details

.exit_hook ⇒ Object 



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# File 'lib/contrast/agent/at_exit_hook.rb', line 12

def self.exit_hook
  @_exit_hook ||= begin
    at_exit do
      on_exit
    end
    true
  end
end

.on_exit ⇒ Object

Actions to take when a process exits. Typically called from our exit_hook, but exposed here for other process terminations, like those in Kernel#exec



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# File 'lib/contrast/agent/at_exit_hook.rb', line 24

def self.on_exit
  logger.debug('at_exit invoked, host application terminating',
               p_id: @pid,
               pp_id: @ppid,
               process_pid: Process.pid,
               process_pp_id: Process.ppid)

  context = Contrast::Agent::REQUEST_TRACKER.current
  return unless context

  Contrast::Agent.messaging_queue.send_event_immediately(context.activity)
end