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author | Alex Xu (Hello71) <alex_y_xu@yahoo.ca> | 2018-11-08 17:59:32 -0500 |
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committer | Alex Xu (Hello71) <alex_y_xu@yahoo.ca> | 2018-11-08 17:59:32 -0500 |
commit | 451f0766a1a52b5436d5b9946dc9d11d113f4b7c (patch) | |
tree | b9dd9f86e39fd8d6e03006dc6a160e57cd004820 /systemd-inhibit-delay | |
download | systemd-inhibit-delay-451f0766a1a52b5436d5b9946dc9d11d113f4b7c.tar.xz systemd-inhibit-delay-451f0766a1a52b5436d5b9946dc9d11d113f4b7c.zip |
Diffstat (limited to 'systemd-inhibit-delay')
-rwxr-xr-x | systemd-inhibit-delay | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/systemd-inhibit-delay b/systemd-inhibit-delay new file mode 100755 index 0000000..3608721 --- /dev/null +++ b/systemd-inhibit-delay @@ -0,0 +1,79 @@ +#!/usr/bin/env python + +# systemd-inhibit-delay +# +# 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 <https://www.gnu.org/licenses/>. + + +import argparse +import dbus +import os +import subprocess +import sys +from dbus.mainloop.glib import DBusGMainLoop +from gi.repository import GLib + +class Inhibitor: + def __init__(self, bus, what, cmd): + if what == 'sleep': + self.signal_name = 'PrepareForSleep' + elif what == 'shutdown': + self.signal_name = 'PrepareForShutdown' + else: + raise Exception('for what, only sleep and shutdown supported') + + if cmd == '': + raise Exception('command cannot be empty') + + self.bus = bus + self.what = what + self.cmd = cmd + + def start(self): + self.bus.add_signal_receiver( + self.sleep_handler, + dbus_interface='org.freedesktop.login1.Manager', + signal_name=self.signal_name + ) + self.take_lock() + + def sleep_handler(self, active): + if active: + subprocess.call(self.cmd) + if self.fd != -1: + os.close(self.fd) + self.fd = -1 + else: + self.take_lock() + + def take_lock(self): + login1 = self.bus.get_object('org.freedesktop.login1', '/org/freedesktop/login1') + self.fd = login1.Inhibit(self.what, 'systemd-inhibit-delay', '', 'delay', + dbus_interface='org.freedesktop.login1.Manager').take() + +DBusGMainLoop(set_as_default=True) + +parser = argparse.ArgumentParser(description='systemd inhibit delay') +parser.add_argument('cmd', help='the command to run (MUST EXIT WHEN READY)') +parser.add_argument('args', nargs=argparse.REMAINDER, + help='the command arguments') +parser.add_argument('--what', default='sleep', + help='what to delay, sleep or shutdown (default: sleep)') +args = parser.parse_args() + +system_bus = dbus.SystemBus() +inhibitor = Inhibitor(system_bus, args.what, [args.cmd] + args.args) +inhibitor.start() +loop = GLib.MainLoop() +loop.run() |