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'''
Monitor and receive ACPI events messages via generic netlink.
.. testsetup::
from pyroute2.netlink.event import acpi_event
import pyroute2
pyroute2.AcpiEventSocket = acpi_event.AcpiEventMock
.. code::
from pprint import pprint
from pyroute2 import AcpiEventSocket
acpi = AcpiEventSocket()
for message in acpi.get():
pprint(message.get('ACPI_GENL_ATTR_EVENT'))
.. testoutput::
{'bus_id': b'LEN0268:00',
'data': 1251328,
'device_class': b'ibm/hotkey',
'type': 32768}
'''
from pyroute2.common import load_dump
from pyroute2.netlink import genlmsg, nla
from pyroute2.netlink.event import EventSocket
from pyroute2.netlink.nlsocket import Marshal
ACPI_GENL_CMD_UNSPEC = 0
ACPI_GENL_CMD_EVENT = 1
class acpimsg(genlmsg):
nla_map = (
('ACPI_GENL_ATTR_UNSPEC', 'none'),
('ACPI_GENL_ATTR_EVENT', 'acpiev'),
)
class acpiev(nla):
fields = (
('device_class', '20s'),
('bus_id', '15s'),
('type', 'I'),
('data', 'I'),
)
def decode(self):
nla.decode(self)
dc = self['device_class']
bi = self['bus_id']
self['device_class'] = dc[: dc.find(b'\x00')]
self['bus_id'] = bi[: bi.find(b'\x00')]
class MarshalAcpiEvent(Marshal):
msg_map = {ACPI_GENL_CMD_UNSPEC: acpimsg, ACPI_GENL_CMD_EVENT: acpimsg}
class AcpiEventSocket(EventSocket):
marshal_class = MarshalAcpiEvent
genl_family = 'acpi_event'
class AcpiEventMock(AcpiEventSocket):
input_from_buffer_queue = True
sample_data = '''
44:00:00:00 1b:00:00:00 9b:8b:00:00 00:00:00:00
01:01:00:00 30:00:01:00 69:62:6d:2f 68:6f:74:6b
65:79:00:00 00:00:00:00 00:00:00:00 4c:45:4e:30
32:36:38:3a 30:30:00:00 00:00:00:00 80:00:00:00
18:13:00:00
'''
def bind(self, groups=0, **kwarg):
self.marshal.msg_map[27] = acpimsg
def get(self):
self.mock_data(load_dump(self.sample_data))
return super().get()