Daemonizing a python programme.
William Annis
annis at biostat.wisc.edu
Mon Mar 26 09:24:28 EST 2001
Coy Krill <ckrill at qvlinc.com> writes:
> class NullDevice:
> def write(self, s):
> pass
>
> def daemonize():
> if (not os.fork()):
> # get our own session and fixup std[in,out,err]
> os.setsid()
I include these here:
os.chdir(some_sensible_root_dir_for_core_files)
os.umask(000) # or whatever seems sensible
See chapter 13, "Daemon Processes," pp.415-425 of "Advanced
Programming in the Unix Environment" by W. Richard Stevens for a full
treatment.
> sys.stdin.close()
> sys.stdout = NullDevice()
> sys.stderr = NullDevice()
This is curious. Why not just close down STDOUT and STDERR,
too?
--
William Annis - System Administrator - Biomedical Computing Group
annis at biostat.wisc.edu PGP ID:1024/FBF64031
Mi parolas Esperanton - La Internacian Lingvon www.esperanto.org
More information about the Python-list
mailing list