Files
supervisor/hassio/misc/systemd.py
2018-04-21 23:56:36 +02:00

47 lines
1.2 KiB
Python

"""Interface to Systemd over dbus."""
import logging
from ..exceptions import HassioInternalError
from ..utils.gdbus import DBus, DBusError
_LOGGER = logging.getLogger(__name__)
DBUS_NAME = 'org.freedesktop.systemd1'
DBUS_OBJECT = '/org/freedesktop/systemd1'
class Systemd(object):
"""Systemd function handler."""
def __init__(self):
"""Initialize systemd."""
self.dbus = None
@property
def is_connected(self):
"""Return True, if they is connected to dbus."""
return self.dbus is not None
async def connect(self):
"""Connect do bus."""
try:
self.dbus = await DBus.connect(DBUS_NAME, DBUS_OBJECT)
except DBusError:
_LOGGER.warning("Can't connect to systemd")
async def reboot(self):
"""Reboot host computer."""
try:
await self.dbus.Manager.Reboot()
except DBusError:
_LOGGER.error("Can't reboot host")
raise HassioInternalError() from None
async def shutdown(self):
"""Shutdown host computer."""
try:
await self.dbus.Manager.PowerOff()
except DBusError:
_LOGGER.error("Can't PowerOff host")
raise HassioInternalError() from None