96 lines
2.7 KiB
Python
96 lines
2.7 KiB
Python
# -*- coding:utf-8 -*-
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#############################################################################
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# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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#
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# openGauss is licensed under Mulan PSL v2.
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# You can use this software according to the terms
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# and conditions of the Mulan PSL v2.
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# You may obtain a copy of Mulan PSL v2 at:
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#
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# http://license.coscl.org.cn/MulanPSL2
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#
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OF ANY KIND,
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# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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# See the Mulan PSL v2 for more details.
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# ----------------------------------------------------------------------------
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# Description : ThreadPool.py is utility to support parallel control by
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# multiprocess
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#############################################################################
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import threading
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import multiprocessing
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import subprocess
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import sys
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from multiprocessing.dummy import Pool as ThreadPool
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class parallelTool:
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'''
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Class for multi-parallel controling one-hosts
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'''
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DEFAULT_PARALLEL_NUM = 12
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def __init__(self):
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'''
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Constructor
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'''
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@staticmethod
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def getCpuCount(parallelJobs=0):
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"""
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function: get cpu set of current board
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cat /proc/cpuinfo |grep processor
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input: parallelJobs
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output: cpuSet
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"""
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if (parallelJobs != 0):
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return parallelJobs
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# do this function to get the parallel number
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cpuSet = multiprocessing.cpu_count()
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if (cpuSet > 1):
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return cpuSet
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else:
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return parallelTool.DEFAULT_PARALLEL_NUM
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@staticmethod
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def parallelExecute(func, paraList, parallelJobs=0):
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"""
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function: Execution of python functions through multiple processes
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input: func, list, parallelJobs
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output: list
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"""
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jobs = parallelTool.getCpuCount(parallelJobs)
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if (jobs > len(paraList)):
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jobs = len(paraList)
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pool = ThreadPool(jobs)
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results = pool.map(func, paraList)
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pool.close()
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pool.join()
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return results
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class CommandThread(threading.Thread):
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"""
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The class is used to execute command in thread
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"""
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def __init__(self, cmd):
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'''
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Constructor
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'''
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threading.Thread.__init__(self)
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self.command = cmd
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self.cmdStauts = 0
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self.cmdOutput = ""
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def run(self):
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"""
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function: Run command
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input : NA
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output: NA
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"""
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(self.cmdStauts, self.cmdOutput) = subprocess.getstatusoutput(
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self.command)
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