FM / clcommon

/opt/cloudlinux/venv/lib/python3.11/site-packages/clcommon/

/opt/cloudlinux/venv/lib/python3.11/site-packages/clcommon

Name	Size	Mode	Actions
cpapi/	-	0755	rm
lib/	-	0755	rm
public_hooks/	-	0755	rm
__pycache__/	-	0755	rm
clcagefs.py	13275	0644	edit dl rm
clcaptain.py	2177	0644	edit dl rm
clconfig.py	2001	0644	edit dl rm
clconfpars.py	14376	0644	edit dl rm
clcustomscript.py	1712	0644	edit dl rm
cldebug.py	1062	0644	edit dl rm
clemail.py	1693	0644	edit dl rm
clexception.py	1165	0644	edit dl rm
clfunc.py	6623	0644	edit dl rm
clhook.py	8869	0644	edit dl rm
cllog.py	1488	0644	edit dl rm
cloutput.py	471	0644	edit dl rm
clproc.py	4146	0644	edit dl rm
clpwd.py	7929	0644	edit dl rm
clquota.py	1296	0644	edit dl rm
clsec.py	657	0644	edit dl rm
clwpos_lib.py	18732	0644	edit dl rm
const.py	277	0644	edit dl rm
evr_utils.py	3638	0644	edit dl rm
features.py	5130	0644	edit dl rm
group_info_reader.py	5413	0644	edit dl rm
lock.py	1178	0644	edit dl rm
mail_helper.py	4557	0644	edit dl rm
mysql_lib.py	5984	0644	edit dl rm
php_conf_reader.py	10000	0644	edit dl rm
sysctl.py	9181	0644	edit dl rm
ui_config.py	3198	0644	edit dl rm
utils.py	33392	0644	edit dl rm
utils_cmd.py	2771	0644	edit dl rm
__init__.py	1346	0644	edit dl rm

Edit: /opt/cloudlinux/venv/lib/python3.11/site-packages/clcommon/lock.py (1178B)

import contextlib
import fcntl
import os

def setup_lock(lockfile_path):
    lock_file_dir = os.path.dirname(lockfile_path)
    if lock_file_dir and not os.path.exists(lock_file_dir):
        os.makedirs(lock_file_dir)

fd = os.fdopen(
        os.open(lockfile_path, os.O_RDWR | os.O_CREAT | os.O_CLOEXEC | os.O_NOFOLLOW, 0o600),
        'r+',
    )
    # tighten a pre-existing lock file (the 0o600 above only applies on creation)
    os.fchmod(fd.fileno(), 0o600)

# waiting till lock is acquired
    fcntl.flock(fd, fcntl.LOCK_EX)

fd.seek(0, 0)
    fd.truncate()
    fd.write(str(os.getpid()))
    fd.flush()

return fd

def release_lock(fd):
    fcntl.flock(fd.fileno(), fcntl.LOCK_UN)
    fd.close()

@contextlib.contextmanager
def acquire_lock(lockfile_path):
    """
    Usage:
    with acquire_lock():
       ... do something ...
    """
    fd = setup_lock(lockfile_path)
    try:
        yield
    finally:
        release_lock(fd)

#!/usr/bin/python # coding=utf-8 # # Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved # # Licensed under CLOUD LINUX LICENSE AGREEMENT # http://cloudlinux.com/docs/LICENSE.TXT import contextlib import fcntl import os def setup_lock(lockfile_path): lock_file_dir = os.path.dirname(lockfile_path) if lock_file_dir and not os.path.exists(lock_file_dir): os.makedirs(lock_file_dir) fd = os.fdopen( os.open(lockfile_path, os.O_RDWR | os.O_CREAT | os.O_CLOEXEC | os.O_NOFOLLOW, 0o600), 'r+', ) # tighten a pre-existing lock file (the 0o600 above only applies on creation) os.fchmod(fd.fileno(), 0o600) # waiting till lock is acquired fcntl.flock(fd, fcntl.LOCK_EX) fd.seek(0, 0) fd.truncate() fd.write(str(os.getpid())) fd.flush() return fd def release_lock(fd): fcntl.flock(fd.fileno(), fcntl.LOCK_UN) fd.close() @contextlib.contextmanager def acquire_lock(lockfile_path): """ Usage: with acquire_lock(): ... do something ... """ fd = setup_lock(lockfile_path) try: yield finally: release_lock(fd)