Class: Celluloid::Actor::System

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/celluloid/actor/system.rb

Constant Summary collapse

ROOT_SERVICES = 
begin
  root_services = [
    {
      as: :notifications_fanout,
      type: Celluloid::Notifications::Fanout,
    },
    {
      as: :incident_reporter,
      type: Celluloid::IncidentReporter,
      args: [STDERR],
    },
    {
      as: :public_services,
      type: Celluloid::Supervision::Service::Public,
      accessors: [:services],
      supervise: [],
    },
  ]
  if $CELLULOID_MANAGED
    root_services << {
      as: :actor_manager,
      type: Celluloid::Actor::Manager,
      accessors: [:manager],
    }
  end
  root_services
end

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ System

Returns a new instance of System.



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# File 'lib/celluloid/actor/system.rb', line 50

def initialize
  @tree = nil
  @group = Celluloid.group_class.new
  @registry = Internals::Registry.new
  @root = ROOT_SERVICES
end

Instance Attribute Details

#group ⇒ Object (readonly)

Returns the value of attribute group.



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# File 'lib/celluloid/actor/system.rb', line 38

def group
  @group
end

#registry ⇒ Object (readonly)

Returns the value of attribute registry.



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# File 'lib/celluloid/actor/system.rb', line 38

def registry
  @registry
end

Instance Method Details

#assert_inactive ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 154

def assert_inactive
  @group.assert_inactive
end

#clear_registry ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 94

def clear_registry
  @registry.clear
end

#get_thread ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 75

def get_thread
  @group.get do
    Thread.current[:celluloid_actor_system] = self
    yield
  end
end

#registered ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 90

def registered
  @registry.names
end

#root_configuration ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 46

def root_configuration
  @root
end

#root_services ⇒ Object

the root of the supervisor tree is established at supervision/root



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# File 'lib/celluloid/actor/system.rb', line 42

def root_services
  @tree
end

#running ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 98

def running
  actors = []
  @group.each do |t|
    next unless t.role == :actor
    actor = t.actor

    # NOTE - these are in separate statements, since on JRuby t.actor may
    # become nil befor .behavior_proxy() is called
    next unless actor
    next unless actor.respond_to?(:behavior_proxy)
    proxy = actor.behavior_proxy
    actors << proxy
  end
  actors
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/celluloid/actor/system.rb', line 114

def running?
  @group.active?
end

#shutdown ⇒ Object

Shut down all running actors



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# File 'lib/celluloid/actor/system.rb', line 119

def shutdown
  actors = running
  Timeout.timeout(shutdown_timeout) do
    Internals::Logger.debug "Terminating #{actors.size} #{(actors.size > 1) ? 'actors' : 'actor'}..." if actors.size > 0

    # Actors cannot self-terminate, you must do it for them
    actors.each do |actor|
      begin
        actor.terminate!
      rescue DeadActorError
      end
    end

    actors.each do |actor|
      begin
        Actor.join(actor)
      rescue DeadActorError
      end
    end
  end
rescue Timeout::Error
  Internals::Logger.error("Couldn't cleanly terminate all actors in #{shutdown_timeout} seconds!")
  unless RUBY_PLATFORM == "java" || RUBY_ENGINE == "rbx"
    actors.each do |actor|
      begin
        Actor.kill(actor)
      rescue DeadActorError, MailboxDead
      end
    end
  end
ensure
  @group.shutdown
  clear_registry
end

#shutdown_timeout ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 158

def shutdown_timeout
  Celluloid.shutdown_timeout
end

#stack_dump ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 82

def stack_dump
  Internals::Stack::Dump.new(@group)
end

#stack_summary ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 86

def stack_summary
  Internals::Stack::Summary.new(@group)
end

#start ⇒ Object

Launch default services



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# File 'lib/celluloid/actor/system.rb', line 58

def start
  within do
    @root = Supervision::Service::Root.define
    @tree = root_configuration.deploy
    # de root_services[:group_manager].manage! @group
  end
  true
end

#within ⇒ Object 



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# File 'lib/celluloid/actor/system.rb', line 67

def within
  old = Thread.current[:celluloid_actor_system]
  Thread.current[:celluloid_actor_system] = self
  yield
ensure
  Thread.current[:celluloid_actor_system] = old
end