ed45e5aa6d
Benchmark for daemon mode is to be added in next commit.
Current results on my machine for 'ip a':
method : min avg max dev
ip a : 3.701ms 4.966ms 12.720ms 1.206ms
sudo ip a : 11.531ms 13.538ms 19.685ms 1.525ms
sudo rootwrap conf ip a : 92.253ms 119.431ms 211.236ms 17.948ms
daemon.run('ip a') : 6.718ms 9.914ms 189.873ms 18.201ms
Implements: blueprint rootwrap-daemon-mode
Change-Id: Iace26738f910a18a5d1d3479fad949027e5a3816
58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
# Copyright (c) 2014 Mirantis Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import subprocess
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import sys
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import threading
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from oslo.rootwrap import cmd
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def forward_stream(fr, to):
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while True:
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line = fr.readline()
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if not line:
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break
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to.write(line)
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def forwarding_popen(f, old_popen=subprocess.Popen):
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def popen(*args, **kwargs):
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p = old_popen(*args, **kwargs)
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t = threading.Thread(target=forward_stream, args=(p.stderr, f))
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t.daemon = True
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t.start()
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return p
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return popen
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class nonclosing(object):
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def __init__(self, f):
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self._f = f
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def __getattr__(self, name):
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return getattr(self._f, name)
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def close(self):
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pass
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log_format = ("%(asctime)s | [%(process)5s]+%(levelname)5s | "
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"%(message)s")
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if __name__ == '__main__':
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logging.basicConfig(level=logging.DEBUG, format=log_format)
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sys.stderr = nonclosing(sys.stderr)
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cmd.daemon()
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