Class: Catfriend::DBus

Inherits:
Object
  • Object
show all
Includes:
Thread, Events::Emitter
Defined in:
lib/catfriend/dbus.rb

Overview

Represent a DBUS server interface and includes an associated thread in which to run the dbus methods.

Defined Under Namespace

Classes: DBusObject

Instance Method Summary collapse

Methods included from Thread

#join, #kill, #start, #stopped?

Instance Method Details

#init ⇒ Object

Start the DBus interface



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# File 'lib/catfriend/dbus.rb', line 36

def init
  @bus = ::DBus::SessionBus.instance unless @bus
end

#run ⇒ Object

Thread mixin interface: Run the DBus server in a virtual thread



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# File 'lib/catfriend/dbus.rb', line 61

def run
  init
  if send_shutdown
    Catfriend.whisper "shut down existing catfriend"
  end

  @main = ::DBus::Main.new
  start_service
  @main << @bus
  @main.run
rescue => e
  puts "dbus unknown error #{e.message}\n#{e.backtrace.join("\n")}"
end

#send_shutdown ⇒ Object

Attempt to shutdown another application listening on catfriend’s address.



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# File 'lib/catfriend/dbus.rb', line 41

def send_shutdown
  init
  service = @bus.service(SERVICE)
  object = service.object(PATH)
  object.introspect
  object.default_iface = INTERFACE
  object.stop
  true
rescue
  false
end

#start_service ⇒ Object

Call send_shutdown then start the DBus interface.



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# File 'lib/catfriend/dbus.rb', line 54

def start_service
  object = DBusObject.new(@main, self)
  service = @bus.request_service(SERVICE)
  service.export object
end