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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# Test to move a pid to a cgroup
#
# Copyright (c) 2023 Oracle and/or its affiliates.
# Author: Tom Hromatka <tom.hromatka@oracle.com>
#
from libcgroup import Cgroup, Mode, Version
from process import Process
import consts
import ftests
import sys
import os
CGNAME = '087movepid'
def prereqs(config):
result = consts.TEST_PASSED
cause = None
if Cgroup.cgroup_mode() != Mode.CGROUP_MODE_UNIFIED:
result = consts.TEST_SKIPPED
cause = 'This test requires the unified cgroup hierarchy'
return result, cause
def setup(config):
result = consts.TEST_PASSED
cause = None
cg = Cgroup(CGNAME, Version.CGROUP_V2)
cg.create()
pid = config.process.create_process(config)
path = Cgroup.get_current_controller_path(pid)
if path == '/' + CGNAME:
result = consts.TEST_FAILED
cause = 'The PID was already in the destination cgroup {}'.format(CGNAME)
return result, cause, pid
def test(config, pid):
result = consts.TEST_PASSED
cause = None
Cgroup.move_process(pid, CGNAME)
path = Cgroup.get_current_controller_path(pid)
if path != '/' + CGNAME:
result = consts.TEST_FAILED
cause = 'Expected the pid to be in {} cgroup, but was instead in {}'.format(CGNAME, path)
return result, cause
def teardown(config, pid):
Process.kill(config, pid)
cg = Cgroup(CGNAME, Version.CGROUP_V2)
cg.delete()
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
[result, cause, pid] = setup(config)
if result != consts.TEST_PASSED:
teardown(config, pid)
return [result, cause]
[result, cause] = test(config, pid)
teardown(config, pid)
return [result, cause]
if __name__ == '__main__':
config = ftests.parse_args()
# this test was invoked directly. run only it
config.args.num = int(os.path.basename(__file__).split('-')[0])
sys.exit(ftests.main(config))
# vim: set et ts=4 sw=4:
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