blob: 49fe7626dc30bee21daab1626e3870149bd9d2f0 [file] [log] [blame]
#!/usr/bin/env python3
# Copyright (C) 2020 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import argparse
import subprocess
import sys
import time
SUBMIT_DIAG_INFO = '/System/Library/CoreServices/SubmitDiagInfo'
WAIT_SECONDS = 3
def pid_for_name(process_name):
process = subprocess.Popen(['/bin/ps', '-eo', 'pid,comm'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, _ = process.communicate()
for line in stdout.splitlines():
try:
pid, candidate = line.strip().split(b' ', 1)
if candidate == process_name:
return int(pid)
except ValueError:
pass
return None
def cpu_percentage(pid):
top_output = subprocess.check_output(['/usr/bin/top', '-pid', str(pid), '-stats', 'cpu', '-l', '2'])
try:
return float(top_output.splitlines()[-1])
except ValueError:
return 0
def main():
parser = argparse.ArgumentParser(description='Wait for crash log reporting to quiesce')
parser.add_argument(
'-t', '--timeout',
help='Seconds to wait for process to quiesce.',
type=int, default=0,
)
args = parser.parse_args()
deadline = (time.time() + args.timeout) if args.timeout else None
if sys.platform != 'darwin':
print("No crash reporting available for platform '{}'".format(sys.platform))
return 0
pid = pid_for_name(SUBMIT_DIAG_INFO)
if not pid:
print('Failed to find any running process for {}'.format(SUBMIT_DIAG_INFO))
return 0
print('Found {} running with PID {}'.format(SUBMIT_DIAG_INFO, pid))
print('Waiting for process {} to quiesce'.format(pid))
while not deadline or deadline > time.time():
if cpu_percentage(pid) <= 5:
print('Process {} has quiesced'.format(pid))
return 0
time.sleep(WAIT_SECONDS)
print('Timed out waiting for {} to quiesce, continue'.format(pid))
return 0
if __name__ == '__main__':
sys.exit(main())