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# vim: set fileencoding=utf-8 :
#
# (C) 2014 Guido Günther <agx@sigxcpu.org>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os
import subprocess
class Systemd(object):
"""Systemd init system"""
def __init__(self):
if not self.is_running():
raise ValueError("Systemd not running")
@staticmethod
def is_running():
return os.path.exists("/run/systemd/system")
@staticmethod
def process_to_unit(process):
cmd = ['systemctl', 'status', "%d" % process.pid]
systemctl_status = subprocess.Popen(cmd, stdout=subprocess.PIPE)
output = systemctl_status.communicate()[0]
if systemctl_status.returncode:
return None
else:
return output.split()[0]
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