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process_killer.py
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process_killer.py
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#
# Copyright (c) 2022, Neptune Labs Sp. z o.o.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import os
import signal
from neptune.new.envs import NEPTUNE_SUBPROCESS_KILL_TIMEOUT
try:
import psutil
PSUTIL_INSTALLED = True
except ImportError:
PSUTIL_INSTALLED = False
KILL_TIMEOUT = int(os.getenv(NEPTUNE_SUBPROCESS_KILL_TIMEOUT, "5"))
def kill_me():
if PSUTIL_INSTALLED:
process = psutil.Process(os.getpid())
try:
children = _get_process_children(process)
except psutil.NoSuchProcess:
children = []
for child_proc in children:
_terminate(child_proc)
_, alive = psutil.wait_procs(children, timeout=KILL_TIMEOUT)
for child_proc in alive:
_kill(child_proc)
# finish with terminating self
_terminate(process)
else:
os.kill(os.getpid(), signal.SIGINT)
def _terminate(process):
try:
process.terminate()
except psutil.NoSuchProcess:
pass
def _kill(process):
try:
if process.is_running():
process.kill()
except psutil.NoSuchProcess:
pass
def _get_process_children(process):
try:
return process.children(recursive=True)
except psutil.NoSuchProcess:
return []