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import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_invert(base.Function):
"""
Inverts list of CPUs (makes its complement). For the complement it
gets number of online CPUs from the /sys/devices/system/cpu/online,
e.g. system with 4 CPUs (0-3), the inversion of list "0,2,3" will be
"1"
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_invert, self).__init__("cpulist_invert", 0)
def execute(self, args):
if not super(cpulist_invert, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.cpulist_invert(",,".join(args)))