Class: SystemdMon::DBusUnit

Inherits:
Object
  • Object
show all
Defined in:
lib/systemd_mon/dbus_unit.rb

Constant Summary collapse

IFACE_UNIT = 
"org.freedesktop.systemd1.Unit"
IFACE_SERVICE = 
"org.freedesktop.systemd1.Service"
IFACE_PROPS = 
"org.freedesktop.DBus.Properties"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, path, dbus_object) ⇒ DBusUnit

Returns a new instance of DBusUnit.



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# File 'lib/systemd_mon/dbus_unit.rb', line 11

def initialize(name, path, dbus_object)
  self.name = name
  self.path = path
  self.dbus_object = dbus_object
  prepare_dbus_objects!
  self.maybe_service_type = service_type
end

Instance Attribute Details

#maybe_service_type ⇒ Object

Returns the value of attribute maybe_service_type.



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# File 'lib/systemd_mon/dbus_unit.rb', line 5

def maybe_service_type
  @maybe_service_type
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/systemd_mon/dbus_unit.rb', line 5

def name
  @name
end

Instance Method Details

#on_change(&callback) ⇒ Object 



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# File 'lib/systemd_mon/dbus_unit.rb', line 28

def on_change(&callback)
  self.change_callback = callback
end

#on_each_state_change(&callback) ⇒ Object 



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# File 'lib/systemd_mon/dbus_unit.rb', line 32

def on_each_state_change(&callback)
  self.each_state_change_callback = callback
end

#property(name) ⇒ Object 



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# File 'lib/systemd_mon/dbus_unit.rb', line 36

def property(name)
  dbus_object.Get(IFACE_UNIT, name).first
end

#register_listener!(queue) ⇒ Object 



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# File 'lib/systemd_mon/dbus_unit.rb', line 19

def register_listener!(queue)
  queue.enq [self, build_state] # initial state
  dbus_object.on_signal("PropertiesChanged") do |iface|
    if iface == IFACE_UNIT
      queue.enq [self, build_state]
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/systemd_mon/dbus_unit.rb', line 40

def to_s
  "#{name}" << (maybe_service_type ? " (#{maybe_service_type})" : '')
end