Class: MainLoop::ThreadHandler

Inherits:
Handler
  • Object
show all
Defined in:
lib/main_loop/thread_handler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dispatcher, name, runnable: nil, **kwargs, &block) ⇒ ThreadHandler

Инициализация

Parameters:

  • dispatcher (Dispatcher) —

    ссылка на диспетчер

  • name (String) —

    имя обработчика

  • runnable (Object) (defaults to: nil) —

    объект с методами run и on_term (опционально)

  • retry_count (Integer, :unlimited) —

    количество повторов

  • logger (Logger) —

    логгер



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# File 'lib/main_loop/thread_handler.rb', line 47

def initialize(dispatcher, name, runnable: nil, **kwargs, &block)
  super
  @handler_type = 'Thread'
  @thread = nil
  dispatcher.add_handler(self)

  if runnable
    unless runnable.respond_to?(:run) && runnable.respond_to?(:on_term)
      raise TypeError, "Runnable object must respond to :run and :on_term"
    end
  end

  @runnable = runnable
  @block = block

  run
end

Instance Attribute Details

#thread ⇒ Object (readonly)

Returns the value of attribute thread.



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# File 'lib/main_loop/thread_handler.rb', line 38

def thread
  @thread
end

Instance Method Details

#id ⇒ String

Получить ID потока

Returns:

  • (String) —

    object_id потока в виде строки



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# File 'lib/main_loop/thread_handler.rb', line 68

def id
  @thread&.object_id.to_s
end

#kill(*_args) ⇒ Object

Принудительно завершить поток

Parameters:

  • *_args (Unused) 


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# File 'lib/main_loop/thread_handler.rb', line 114

def kill(*_args)
  unless @thread
    logger.debug "Thread[#{name}] already Killed. Skipped."
    return
  end

  @success = false
  logger.info "Thread[#{name}] send kill: thread:#{@thread}"
  @thread.kill rescue nil
end

#reap(status) ⇒ Object

Обработка завершения потока

Parameters:

  • status (String) —

    статус завершения (описание)



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# File 'lib/main_loop/thread_handler.rb', line 75

def reap(status)
  logger.info "Thread[#{name}] exited: thread:#{@thread} Status:#{status}"
  exit_reason = @thread[:exit_reason] if @thread
  @thread = nil
  @finished = true

  return if terminating?

  @success = (exit_reason == :normal)
  handle_retry
end

#run ⇒ Object

Запустить поток

Вызывает #start_thread с блоком или runnable.



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# File 'lib/main_loop/thread_handler.rb', line 128

def run
  return if terminating?

  if @runnable
    start_thread { @runnable.run(self) }
  elsif @block
    start_thread(&@block)
  end
end

#term(*_args) ⇒ Object

Терминация потока

Parameters:

  • *_args (Unused) 


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# File 'lib/main_loop/thread_handler.rb', line 90

def term(*_args)
  unless @thread
    @terminating_at ||= Time.now
    logger.debug "Thread[#{name}] already terminated. Skipped."
    return
  end

  if terminating?
    @success = false
    logger.info "Thread[#{name}] send force terminate: KILL thread:#{@thread}"
    @thread.kill rescue nil
  else
    @terminating_at ||= Time.now
    @success = true
    logger.info "Thread[#{name}] send terminate: thread:#{@thread}"

    @runnable&.on_term(@thread) rescue nil
    @on_term&.call(@thread) rescue nil
  end
end