class Concurrent::Actor::Behaviour::Supervising

Handles supervised actors. Handle configures what to do with failed child: :terminate!, :resume!, :reset!, or :restart!. Strategy sets :one_for_one (restarts just failed actor) or :one_for_all (restarts all child actors). @note TODO missing example @note this will change in next version to support supervision trees better

Public Class Methods

new(core, subsequent, core_options, handle, strategy) click to toggle source
# File lib/concurrent/actor/behaviour/supervising.rb, line 10
def initialize(core, subsequent, core_options, handle, strategy)
  super core, subsequent, core_options
  @handle   = Match! handle, :terminate!, :resume!, :reset!, :restart!
  @strategy = case @handle
              when :terminate!
                Match! strategy, nil
              when :resume!
                Match! strategy, :one_for_one
              when :reset!, :restart!
                Match! strategy, :one_for_one, :one_for_all
              end
end

Public Instance Methods

on_envelope(envelope) click to toggle source
# File lib/concurrent/actor/behaviour/supervising.rb, line 23
def on_envelope(envelope)
  case envelope.message
  when Exception, :paused
    receivers = if @strategy == :one_for_all
                  children
                else
                  [envelope.sender]
                end
    receivers.each { |ch| ch << @handle }
  else
    pass envelope
  end
end