How to use the cgroupspy.controllers.Controller function in cgroupspy

throttle_write_iops_device = TypedFile("blkio.throttle.write_iops_device ", contenttype=DeviceThrottle, many=True)
    # time =
    # time_recursive =
    weight = IntegerFile("blkio.weight")
    # weight_device =


class NetClsController(Controller):

    """
    net_cls.classid
    """
    class_id = IntegerFile("net_cls.classid")


class NetPrioController(Controller):

    """
    net_prio.prioidx
    net_prio.ifpriomap
    """
    prioidx = IntegerFile("net_prio.prioidx", readonly=True)
    ifpriomap = DictFile("netprio.ifpriomap")

cpu.cfs_period_us
    cpu.cfs_quota_us
    cpu.rt_period_us
    cpu.rt_runtime_us
    cpu.shares
    cpu.stat
    """
    cfs_period_us = IntegerFile("cpu.cfs_period_us")
    cfs_quota_us = IntegerFile("cpu.cfs_quota_us")
    rt_period_us = IntegerFile("cpu.rt_period_us")
    rt_runtime_us = IntegerFile("cpu.rt_runtime_us")
    shares = IntegerFile("cpu.shares")
    stat = DictFile("cpu.stat", readonly=True)


class CpuAcctController(Controller):

    """
    cpuacct.stat
    cpuacct.usage
    cpuacct.usage_percpu
    """
    acct_stat = DictFile("cpuacct.stat", readonly=True)
    usage = IntegerFile("cpuacct.usage")
    usage_percpu = IntegerListFile("cpuacct.usage_percpu", readonly=True)


class CpuSetController(Controller):

    """
    CpuSet cGroup controller. Provides access to

stat = DictFile("cpu.stat", readonly=True)


class CpuAcctController(Controller):

    """
    cpuacct.stat
    cpuacct.usage
    cpuacct.usage_percpu
    """
    acct_stat = DictFile("cpuacct.stat", readonly=True)
    usage = IntegerFile("cpuacct.usage")
    usage_percpu = IntegerListFile("cpuacct.usage_percpu", readonly=True)


class CpuSetController(Controller):

    """
    CpuSet cGroup controller. Provides access to

    cpuset.cpu_exclusive
    cpuset.cpus
    cpuset.mem_exclusive
    cpuset.mem_hardwall
    cpuset.memory_migrate
    cpuset.memory_pressure
    cpuset.memory_pressure_enabled
    cpuset.memory_spread_page
    cpuset.memory_spread_slab
    cpuset.mems
    cpuset.sched_load_balance
    cpuset.sched_relax_domain_level

stat = DictFile("memory.stat", readonly=True)

    use_hierarchy = FlagFile("memory.use_hierarchy")
    force_empty = FlagFile("memory.force_empty")
    oom_control = FlagFile("memory.oom_control")

    move_charge_at_immigrate = BitFieldFile("memory.move_charge_at_immigrate")

    # Requires special file interface
    # numa_stat =

    # Requires eventfd handling - https://www.kernel.org/doc/Documentation/cgroups/memory.txt
    # pressure_level =


class DevicesController(Controller):
    """
    devices.allow
    devices.deny
    devices.list
    """

    allow = TypedFile("devices.allow", DeviceAccess, writeonly=True)
    deny = TypedFile("devices.deny", DeviceAccess, writeonly=True)
    list = TypedFile("devices.list", DeviceAccess, readonly=True, many=True)


class BlkIOController(Controller):
    """
    blkio.io_merged
    blkio.io_merged_recursive
    blkio.io_queued

# pressure_level =


class DevicesController(Controller):
    """
    devices.allow
    devices.deny
    devices.list
    """

    allow = TypedFile("devices.allow", DeviceAccess, writeonly=True)
    deny = TypedFile("devices.deny", DeviceAccess, writeonly=True)
    list = TypedFile("devices.list", DeviceAccess, readonly=True, many=True)


class BlkIOController(Controller):
    """
    blkio.io_merged
    blkio.io_merged_recursive
    blkio.io_queued
    blkio.io_queued_recursive
    blkio.io_service_bytes
    blkio.io_service_bytes_recursive
    blkio.io_serviced
    blkio.io_serviced_recursive
    blkio.io_service_time
    blkio.io_service_time_recursive
    blkio.io_wait_time
    blkio.io_wait_time_recursive
    blkio.leaf_weight
    blkio.leaf_weight_device
    blkio.reset_stats

return os.path.join(self.node.full_path, filename)

    def get_property(self, filename):
        """Opens the file and reads the value"""

        with open(self.filepath(filename)) as f:
            return f.read().strip()

    def set_property(self, filename, value):
        """Opens the file and writes the value"""

        with open(self.filepath(filename), "w") as f:
            return f.write(str(value))


class CpuController(Controller):

    """
    Cpu cGroup controller. Provides access to

    cpu.cfs_period_us
    cpu.cfs_quota_us
    cpu.rt_period_us
    cpu.rt_runtime_us
    cpu.shares
    cpu.stat
    """
    cfs_period_us = IntegerFile("cpu.cfs_period_us")
    cfs_quota_us = IntegerFile("cpu.cfs_quota_us")
    rt_period_us = IntegerFile("cpu.rt_period_us")
    rt_runtime_us = IntegerFile("cpu.rt_runtime_us")
    shares = IntegerFile("cpu.shares")

reset_stats = IntegerFile("blkio.reset_stats")
    # sectors =
    # sectors_recursive =
    # throttle_io_service_bytes =
    # throttle_io_serviced =
    throttle_read_bps_device = TypedFile("blkio.throttle.read_bps_device", contenttype=DeviceThrottle, many=True)
    throttle_read_iops_device = TypedFile("blkio.throttle.read_iops_device", contenttype=DeviceThrottle, many=True)
    throttle_write_bps_device = TypedFile("blkio.throttle.write_bps_device ", contenttype=DeviceThrottle, many=True)
    throttle_write_iops_device = TypedFile("blkio.throttle.write_iops_device ", contenttype=DeviceThrottle, many=True)
    # time =
    # time_recursive =
    weight = IntegerFile("blkio.weight")
    # weight_device =


class NetClsController(Controller):

    """
    net_cls.classid
    """
    class_id = IntegerFile("net_cls.classid")


class NetPrioController(Controller):

    """
    net_prio.prioidx
    net_prio.ifpriomap
    """
    prioidx = IntegerFile("net_prio.prioidx", readonly=True)
    ifpriomap = DictFile("netprio.ifpriomap")

mems = CommaDashSetFile("cpuset.mems")

    cpu_exclusive = FlagFile("cpuset.cpu_exclusive")
    mem_exclusive = FlagFile("cpuset.mem_exclusive")
    mem_hardwall = FlagFile("cpuset.mem_hardwall")
    memory_migrate = FlagFile("cpuset.memory_migrate")
    memory_pressure = FlagFile("cpuset.memory_pressure")
    memory_pressure_enabled = FlagFile("cpuset.memory_pressure_enabled")
    memory_spread_page = FlagFile("cpuset.memory_spread_page")
    memory_spread_slab = FlagFile("cpuset.memory_spread_slab")
    sched_load_balance = FlagFile("cpuset.sched_load_balance")

    sched_relax_domain_level = IntegerFile("cpuset.sched_relax_domain_level")


class MemoryController(Controller):

    """
    Memory cGroup controller. Provides access to

    memory.failcnt
    memory.force_empty
    memory.limit_in_bytes
    memory.max_usage_in_bytes
    memory.memsw.failcnt
    memory.memsw.limit_in_bytes
    memory.memsw.max_usage_in_bytes
    memory.memsw.usage_in_bytes
    memory.move_charge_at_immigrate
    memory.numa_stat
    memory.oom_control
    memory.pressure_level