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__pycache__	-	Open
linklockfile.py	2.59 MB	View DL Edit
mkdirlockfile.py	3.02 MB	View DL Edit
pidlockfile.py	5.95 MB	View DL Edit
sqlitelockfile.py	5.38 MB	View DL Edit
symlinklockfile.py	2.55 MB	View DL Edit
__init__.py	9.15 MB	View DL Edit

Edit file: /opt/imunify360/venv/lib/python3.11/site-packages/lockfile/mkdirlockfile.py

from __future__ import absolute_import, division

import time
import os
import sys
import errno

from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
               AlreadyLocked)

class MkdirLockFile(LockBase):
    """Lock file by creating a directory."""
    def __init__(self, path, threaded=True, timeout=None):
        """
        >>> lock = MkdirLockFile('somefile')
        >>> lock = MkdirLockFile('somefile', threaded=False)
        """
        LockBase.__init__(self, path, threaded, timeout)
        # Lock file itself is a directory.  Place the unique file name into
        # it.
        self.unique_name = os.path.join(self.lock_file,
                                        "%s.%s%s" % (self.hostname,
                                                     self.tname,
                                                     self.pid))

def acquire(self, timeout=None):
        timeout = timeout if timeout is not None else self.timeout
        end_time = time.time()
        if timeout is not None and timeout > 0:
            end_time += timeout

if timeout is None:
            wait = 0.1
        else:
            wait = max(0, timeout / 10)

while True:
            try:
                os.mkdir(self.lock_file)
            except OSError:
                err = sys.exc_info()[1]
                if err.errno == errno.EEXIST:
                    # Already locked.
                    if os.path.exists(self.unique_name):
                        # Already locked by me.
                        return
                    if timeout is not None and time.time() > end_time:
                        if timeout > 0:
                            raise LockTimeout("Timeout waiting to acquire"
                                              " lock for %s" %
                                              self.path)
                        else:
                            # Someone else has the lock.
                            raise AlreadyLocked("%s is already locked" %
                                                self.path)
                    time.sleep(wait)
                else:
                    # Couldn't create the lock for some other reason
                    raise LockFailed("failed to create %s" % self.lock_file)
            else:
                open(self.unique_name, "wb").close()
                return

def release(self):
        if not self.is_locked():
            raise NotLocked("%s is not locked" % self.path)
        elif not os.path.exists(self.unique_name):
            raise NotMyLock("%s is locked, but not by me" % self.path)
        os.unlink(self.unique_name)
        os.rmdir(self.lock_file)

def is_locked(self):
        return os.path.exists(self.lock_file)

def i_am_locking(self):
        return (self.is_locked() and
                os.path.exists(self.unique_name))

def break_lock(self):
        if os.path.exists(self.lock_file):
            for name in os.listdir(self.lock_file):
                os.unlink(os.path.join(self.lock_file, name))
            os.rmdir(self.lock_file)

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