Class: Jober::ThreadedManager

Inherits:
Object
  • Object
show all
Includes:
Exception, Logger
Defined in:
lib/jober/threaded_manager.rb

Instance Method Summary collapse

Methods included from Exception

#catch, #exception

Methods included from Logger

#logger, #logger=, #logger_tag

Constructor Details

#initialize(klasses = nil, opts = {}) ⇒ ThreadedManager

Returns a new instance of ThreadedManager.



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# File 'lib/jober/threaded_manager.rb', line 13

def initialize(klasses = nil, opts = {})
  @klasses = Array(klasses || Jober.auto_classes)
  @stopped = false
  h = Hash.new(0)
  @objects = @klasses.map do |klass|
    if klass.is_a?(String)
      klass_str = klass
      klass = Jober.find_class(klass_str)
      raise "unknown class #{klass_str}" unless klass
    end
    obj = klass.new(opts.merge(:unique_id => h[klass]))
    h[klass] += 1
    obj
  end
end

Instance Method Details

#default_sleep ⇒ Object 



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# File 'lib/jober/threaded_manager.rb', line 9

def default_sleep
  @default_sleep ||= 10
end

#default_sleep=(ds) ⇒ Object 



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# File 'lib/jober/threaded_manager.rb', line 5

def default_sleep=(ds)
  @default_sleep = ds
end

#run_loop ⇒ Object 



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# File 'lib/jober/threaded_manager.rb', line 35

def run_loop
  info { "run loop for #{@klasses.inspect}, in threads: #{@objects.length}" }
  @threads = @objects.map { |obj| make_thread(obj) }

  # set signals
  trap("INT") { @stopped = true }
  trap("QUIT") { @stopped = true }

  # sleeping infinitely
  sleeping

  info { "prepare quit ..." }

  # send stop to all objects
  @objects.each(&:stop!)

  # sleep a little
  sleep(0.2)

  # sleep a little to give time for threads to quit
  wait_for_kill(default_sleep.to_f)

  names = not_finished_objects_names
  if names.empty?
    info { "quit!" }
  else
    info { "quit! and force killing #{names.inspect}" }
  end

  # kill all threads, if they still alive
  @threads.select(&:alive?).each(&:kill)
end

#set_objects(objects) ⇒ Object 



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# File 'lib/jober/threaded_manager.rb', line 29

def set_objects(objects)
  c = 0
  objects.each { |o| o.instance_variable_set(:@unique_id, c); c += 1 }
  @objects = objects
end

#stop! ⇒ Object 



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# File 'lib/jober/threaded_manager.rb', line 68

def stop!
  @stopped = true
end