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Diffstat (limited to 'whatmaps/systemd.py')
-rw-r--r-- | whatmaps/systemd.py | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/whatmaps/systemd.py b/whatmaps/systemd.py new file mode 100644 index 0000000..add6d0e --- /dev/null +++ b/whatmaps/systemd.py @@ -0,0 +1,41 @@ +# 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] |