如何实现Python启动、停止脚本
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#!/usr/bin/python # -*- coding: UTF-8 -*- import platform,os import time import subprocess import sys import ctypes def get_sysinfo(): sys = platform.system() return os.getpid(),sys def get_path(): p=os.path.split(os.path.realpath(__file__)) # ('D:\\workspace\\python\\src\\MySQL', 'dao.py') p=os.path.split(p[0]) if not p: os.mkdir(p) return p[0] def get_pid_path(): return get_path() +'/tmp/yqs.pid' def check_pid(pid = 0,osname=''): if pid is None or pid == 0: return False wincmd = 'tasklist /FI "PID eq %s" /FI "IMAGENAME eq python.exe "' % str(pid) lincmd = 'ps ax |grep %s |grep python' % str(pid) cmd,size = (wincmd,150) if osname=='Windows' else (lincmd,20) returnstr=subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell=True) data = returnstr.stdout.read() return len(data) > size def read_pid(): if os.path.exists(get_pid_path()): try: with open(get_pid_path(),'r') as f: strpid = f.readline().strip() return int(strpid) except Exception : return None return None def rm_pid(): if os.path.exists(get_pid_path()): os.remove(get_pid_path()) def kill(pid): """kill function for Win32""" kernel32 = ctypes.windll.kernel32 handle = kernel32.OpenProcess(1, 0, pid) return (0 != kernel32.TerminateProcess(handle, 0)) def check_run(): pid,osname = get_sysinfo() if not os.path.exists(get_pid_path()): with open(get_pid_path(),'w') as f: f.write(str(pid)) return False ''' 开始检查 ''' rs = check_pid(read_pid(),osname) if not rs : with open(get_pid_path(),'w') as f: f.write(str(pid)) return rs class Control : def start(self): if check_run(): print 'pro has run' else : print 'pro start...' time.sleep(1000) def stop(self): filePid = read_pid() if filePid is not None and filePid > 0: print 'pro has kill %s' % filePid kill(filePid) rm_pid() else : print 'Process has closed' def check(self): filePid = read_pid() if not filePid or not check_run() : message = "Process has closed\n" sys.stderr.write(message) else : message = "The process has been run, the process id:%d\n" sys.stderr.write(message % filePid) def helpInfo(self): print "usage: start|stop|check|help" if __name__ == "__main__": contr=Control() if len(sys.argv) == 2: param = sys.argv[1] if 'start' == param: contr.start() elif 'stop' == param: contr.stop() elif 'check' == param: contr.check() elif 'help' == param: contr.helpInfo() else: print r"not yes cmd" sys.exit(2) else: print "usage: %s start|stop|check|help" % sys.argv[0]
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文章名称:如何实现Python启动、停止脚本
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