Source code for pcapkit.const.vlan.priority_level
# -*- coding: utf-8 -*-
# pylint: disable=line-too-long,consider-using-f-string
"""Priority levels defined in IEEE 802.1p.
=============================================
This module contains the constant enumeration for **Priority levels defined in IEEE 802.1p.**,
which is automatically generated from :class:`pcapkit.vendor.vlan.priority_level.PriorityLevel`.
"""
from aenum import IntEnum, extend_enum
__all__ = ['PriorityLevel']
[docs]class PriorityLevel(IntEnum):
"""[PriorityLevel] Priority levels defined in IEEE 802.1p."""
#: Background (lowest)
BK = 0b001
#: Best effort (default)
BE = 0b000
#: Excellent effort
EE = 0b010
#: Critical applications
CA = 0b011
#: Video, < 100 ms latency and jitter
VI = 0b100
#: Voice, < 10 ms latency and jitter
VO = 0b101
#: Internetwork control
IC = 0b110
#: Network control (highest)
NC = 0b111
@staticmethod
def get(key: 'int | str', default: 'int' = -1) -> 'PriorityLevel':
"""Backport support for original codes.
Args:
key: Key to get enum item.
default: Default value if not found.
"""
if isinstance(key, int):
return PriorityLevel(key)
if key not in PriorityLevel._member_map_: # pylint: disable=no-member
extend_enum(PriorityLevel, key, default)
return PriorityLevel[key] # type: ignore[misc]
[docs] @classmethod
def _missing_(cls, value: 'int') -> 'PriorityLevel':
"""Lookup function used when value is not found.
Args:
value: Value to get enum item.
"""
if not (isinstance(value, int) and 0b000 <= value <= 0b111):
raise ValueError('%r is not a valid %s' % (value, cls.__name__))
extend_enum(cls, 'Unassigned [0b%s]' % bin(value)[2:].zfill(3), value)
return cls(value)