class NewRelic::Agent::Harvester

Attributes

starting_pid[RW]

Public Class Methods

new(events, after_forker=NewRelic::Agent) click to toggle source

Inject target for after_fork call to avoid spawning thread in tests

# File lib/new_relic/agent/harvester.rb, line 11
def initialize(events, after_forker=NewRelic::Agent)
  # We intentionally don't set our pid as started at this point.
  # Startup routines must call mark_started when they consider us set!
  @starting_pid = nil
  @after_forker = after_forker

  if events
    events.subscribe(:start_transaction, &method(:on_transaction))
  end
end

Public Instance Methods

harvest_thread_enabled?() click to toggle source
# File lib/new_relic/agent/harvester.rb, line 42
def harvest_thread_enabled?
  !NewRelic::Agent.config[:disable_harvest_thread]
end
mark_started(pid = Process.pid) click to toggle source
# File lib/new_relic/agent/harvester.rb, line 30
def mark_started(pid = Process.pid)
  @starting_pid = pid
end
needs_restart?(pid = Process.pid) click to toggle source
# File lib/new_relic/agent/harvester.rb, line 34
def needs_restart?(pid = Process.pid)
  @starting_pid != pid
end
on_transaction(*_) click to toggle source
# File lib/new_relic/agent/harvester.rb, line 22
def on_transaction(*_)
  return unless restart_in_children_enabled? &&
                  needs_restart? &&
                  harvest_thread_enabled?

  restart_harvest_thread
end
restart_harvest_thread() click to toggle source
# File lib/new_relic/agent/harvester.rb, line 46
def restart_harvest_thread
  @after_forker.after_fork(:force_reconnect => true)
end
restart_in_children_enabled?() click to toggle source
# File lib/new_relic/agent/harvester.rb, line 38
def restart_in_children_enabled?
  NewRelic::Agent.config[:restart_thread_in_children]
end