# Copyright: Copyright (c) 2004  Nicolas Despres. All rights reserved.
# Author: Nicolas Despres  <polrop@lrde.epita.fr>.
# License: Gnu General Public License.

# $LastChangedBy: polrop $
# $Id: object_monitor_activity.rb 105 2005-01-16 17:42:26Z polrop $


require 'observable'


class ObjectMonitorActivity
  include Observable

  def initialize
    @mutex = Mutex.new
    @activity = {}
  end

  def update(msg, info)
    case msg
    when :start_method: @mutex.synchronize { @activity[info[:num]] = info }
    when :stop_method: @mutex.synchronize { @activity.delete(info[:num]) }
    else raise 'unknown message'
    end
  end

  def snapshot
    @mutex.synchronize { @activity.dup }
  end

end # class ObjectMonitorActivity