Class: Baykit::BayServer::Agent::SpinHandler

Inherits:
Object
  • Object
show all
Includes:
TimerHandler
Defined in:
lib/baykit/bayserver/agent/spin_handler.rb

Direct Known Subclasses

Transporter::SpinWriteTransporter

Defined Under Namespace

Modules: SpinListener Classes: ListenerInfo

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(agt) ⇒ SpinHandler

Returns a new instance of SpinHandler.



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 36

def initialize(agt)
  @listeners = []
  @lock = Mutex.new
  @agent = agt
  @spin_count = 0
  @agent.add_timer_handler(self)
end

Instance Attribute Details

#agent ⇒ Object (readonly)

Returns the value of attribute agent.



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 33

def agent
  @agent
end

#listeners ⇒ Object (readonly)

Returns the value of attribute listeners.



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 31

def listeners
  @listeners
end

#lock ⇒ Object (readonly)

Returns the value of attribute lock.



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 32

def lock
  @lock
end

#spin_count ⇒ Object (readonly)

Returns the value of attribute spin_count.



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 34

def spin_count
  @spin_count
end

Instance Method Details

#ask_to_callback(lis) ⇒ Object 



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 104

def ask_to_callback(lis)
  BayLog.debug("%s Ask to callback: %s", self, lis)

  found = false
  for ifo in @listeners do
    if ifo.listener == lis
      found = true
      break
    end
  end

  if found
    BayLog.error("Already registered")
  else
    @lock.synchronize do
      @listeners.append(ListenerInfo.new(lis, Time.now.tv_sec))
    end
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 124

def empty?()
  return @listeners.empty?
end

#on_timer ⇒ Object

Implements TimerHandler



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 52

def on_timer()
  stop_timeout_spins()
end

#process_data ⇒ Object

Custom methods



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 60

def process_data()
  if @listeners.empty?
    return false
  end

  all_spun = true
  remove_list = []
  @listeners.length.downto(1) do |i|
    lis = listeners[i-1].listener
    act, spun = lis.lap()

    case act
    when NextSocketAction::SUSPEND
      remove_list.append(i-1)
    when NextSocketAction::CLOSE
      remove_list.append(i-1)
    when NextSocketAction::CONTINUE
      next
    else
      raise Sink.new()
    end

    @listeners[i].last_access = Time.now.tv_sec()
    all_spun = all_spun & spun
  end

  if all_spun
    @spin_count += 1
    if @spin_count > 10
      sleep(0.01)
    else
      @spin_count = 0
    end
  end

  remove_list.each do |i|
    @lock.synchronize do
      @listeners.delete_at(i)
    end
  end

  return true
end

#stop_timeout_spins ⇒ Object 



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 129

def stop_timeout_spins()
  if !@listeners.empty?
    return
  end

  remove_list = []
  @lock.synchronize do
    now = Time.now.tv_sec
    @listeners.length.downto(1) do |i|
      ifo = @listeners[i-1]
      if ifo.listener.check_timeout(int(now - ifo.last_access))
        ifo.listener.close()
        remove_list.append(i)
      end
    end
  end

  remove_list.each do |i|
    @lock.synchronize do
      self.listeners.pop(i)
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/baykit/bayserver/agent/spin_handler.rb', line 44

def to_s()
  return @agent.to_s()
end