Class: Daemon

Inherits:
Object show all
Includes:
Observable, ObservablePool, ServiceManager, Singleton
Defined in:
lib/daemon.rb

Defined Under Namespace

Modules: Notification

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ObservablePool

#add_global_observer, #add_global_observers, #add_observable, #add_observables, #count_all_observers, #count_global_observers, #count_observables, #delete_global_observer, #delete_global_observers, #delete_observable, #delete_observables, #each_observables, #global_observer?, #list_all_observers, #list_global_observers, #list_observables, #list_observables_observed, #observable, #observable?

Methods included from Observable

#add_observers, included, #list_observers, #notify_observer, #observer?

Methods included from ServiceManager

#count_services, #each_services, #join_services, #list_services, #service_server, #start_service, #stop_service, #stop_services

Constructor Details

#initialize ⇒ Daemon

module Notification



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# File 'lib/daemon.rb', line 35

def initialize
  @config = nil
  @workdir = Pathname.new('')
  @detached = false
  add_observable(self)
  @logger = nil
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/daemon.rb', line 53

def config
  @config
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/daemon.rb', line 109

def logger
  @logger
end

#workdir ⇒ Object

Returns the value of attribute workdir.



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# File 'lib/daemon.rb', line 68

def workdir
  @workdir
end

Instance Method Details

#clean_workdir ⇒ Object 



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# File 'lib/daemon.rb', line 70

def clean_workdir
  @workdir.each_entry do |p|
    next if p.to_s =~ /^\./
    (@workdir + p).rmtree
  end
  changed
  notify_observers(Notification::CLEAN_WORKDIR)
  nil
end

#detach ⇒ Object 



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# File 'lib/daemon.rb', line 80

def detach
  return if @detached
  @detached = true
  if pid = fork # father
    exit
  else # son
    Dir.chdir(@workdir.to_s.empty? ? '/' : @workdir.to_s)
    Process.setsid
    STDIN.close
    STDOUT.close
    STDERR.close
  end
  changed
  notify_observers(Notification::DETACH)
  nil
end

#detached? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/daemon.rb', line 97

def detached?
  @detached
end

#reload_config ⇒ Object 



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# File 'lib/daemon.rb', line 118

def reload_config
  unless @config.nil?
    @config.__load__
    changed
    notify_observers(Notification::RELOAD_CONFIG)
    @config
  end
end

#start_daemon(*args) ⇒ Object 



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# File 'lib/daemon.rb', line 127

def start_daemon(*args)
end

#stop_daemon ⇒ Object 



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# File 'lib/daemon.rb', line 111

def stop_daemon
  stop_services
  changed
  notify_observers(Notification::STOP)
  exit
end