/usr/lib/python2.7/dist-packages/bcc/utils.py is in python-bpfcc 0.5.0-5ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | # Copyright 2016 Catalysts GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import ctypes as ct
from .libbcc import lib
def _read_cpu_range(path):
cpus = []
with open(path, 'r') as f:
cpus_range_str = f.read()
for cpu_range in cpus_range_str.split(','):
rangeop = cpu_range.find('-')
if rangeop == -1:
cpus.append(int(cpu_range))
else:
start = int(cpu_range[:rangeop])
end = int(cpu_range[rangeop+1:])
cpus.extend(range(start, end+1))
return cpus
def get_online_cpus():
return _read_cpu_range('/sys/devices/system/cpu/online')
def get_possible_cpus():
return _read_cpu_range('/sys/devices/system/cpu/possible')
def detect_language(candidates, pid):
res = lib.bcc_procutils_language(pid)
language = ct.cast(res, ct.c_char_p).value.decode()
return language if language in candidates else None
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