Example of daemon usage in python

Example of daemon usage in python

This example describes how to use Daemon implemented by python. Share it with you for your reference. The details are as follows:

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Def createDaemon (): "'Funzione che crea un demone per eseguire un determinato programma... "' Import OS # Create-fork 1 Try: If OS. fork ()> 0: OS. _ exit (0) # exit father... Failed t OSError, error: Print 'fork #1 failed: % d (% s) '% (error. errno, error. strerror) OS. _ exit (1) # It separates the son from the father OS. chdir ('/') OS. setsid () OS. umask (0) # Create-fork 2 Try: Pid = OS. fork () If pid> 0: Print 'daemon PID % d' % pid OS. _ exit (0) Failed t OSError, error: Print 'fork #2 failed: % d (% s) '% (error. errno, error. strerror) OS. _ exit (1) FunzioneDemo () # function demo Def funzioneDemo (): Import time Fd = open ('/tmp/demone. log', 'w ') While True: Fd. write (time. ctime () + '\ n ') Fd. flush () Time. sleep (2) Fd. close () If _ name _ = '_ main __': CreateDaemon ()

I hope this article will help you with Python programming.