




"""simple docstring"""




import logging
import os
import threading
import time


try:
   import warnings
except ImportError:
   lowercase__				:      List[str]	   = None

try:
   import msvcrt
except ImportError:
   lowercase__				:      Optional[Any]	   = None

try:
   import fcntl
except ImportError:
   lowercase__				:      Union[str, Any]	   = None


# Backward compatibility
# ------------------------------------------------
try:
   TimeoutError
except NameError:
   lowercase__				:      Dict	   = OSError


# Data
# ------------------------------------------------
lowercase__				:      Union[str, Any]	   = [
    '''Timeout''',
    '''BaseFileLock''',
    '''WindowsFileLock''',
    '''UnixFileLock''',
    '''SoftFileLock''',
    '''FileLock''',
]

lowercase__				:      Dict	   = '''3.0.12'''


lowercase__				:      Optional[Any]	   = None

def  SCREAMING_SNAKE_CASE							(       )      ->					int:
     global _logger
     a     =				_logger or logging.getLogger(__name__)
     return _logger




class       a__	( A__				):







     def __init__(     self  ,		A			)  ->   int:



          '''simple docstring'''



          a     =				lock_file
          return None







     def __str__(     self			)  ->   Union[str, Any]:



          '''simple docstring'''



          a     =				F'''The file lock \'{self.lock_file}\' could not be acquired.'''
          return temp







class       a__	:







     def __init__(     self  ,		A			)  ->   str:



          '''simple docstring'''



          a     =				lock
          return None







     def __enter__(     self			)  ->   Dict:



          '''simple docstring'''



          return self.lock







     def __exit__(     self  ,		A  ,		A  ,		A			)  ->   Any:



          '''simple docstring'''



          self.lock.release()
          return None







class       a__	:







     def __init__(     self  ,		A  ,		A=-1  ,		A=None			)  ->   Tuple:



          '''simple docstring'''



          a     =				max_filename_length if max_filename_length is not None else 255
          # Hash the filename if it's too long
          a     =				self.hash_filename_if_too_long(lowerCamelCase__  ,		lowerCamelCase__			)
          # The path to the lock file.
          a     =				lock_file

          # The file descriptor for the *_lock_file* as it is returned by the
          # os.open() function.
          # This file lock is only NOT None, if the object currently holds the
          # lock.
          a     =				None

          # The default timeout value.
          a     =				timeout

          # We use this lock primarily for the lock counter.
          a     =				threading.Lock()

          # The lock counter is used for implementing the nested locking
          # mechanism. Whenever the lock is acquired, the counter is increased and
          # the lock is only released, when this value is 0 again.
          a     =				0
          return None







     @property
     def       lowerCAmelCase_    (     self			)  ->   int:



          '''simple docstring'''



          return self._lock_file







     @property
     def       lowerCAmelCase_    (     self			)  ->   Tuple:



          '''simple docstring'''



          return self._timeout







     @timeout.setter
     def       lowerCAmelCase_    (     self  ,		A			)  ->   Optional[Any]:



          '''simple docstring'''



          a     =				float(lowerCamelCase__			)
          return None







     def       lowerCAmelCase_    (     self			)  ->   Any:



          '''simple docstring'''



          raise NotImplementedError()







     def       lowerCAmelCase_    (     self			)  ->   Dict:



          '''simple docstring'''



          raise NotImplementedError()







     @property
     def       lowerCAmelCase_    (     self			)  ->   Union[str, Any]:



          '''simple docstring'''



          return self._lock_file_fd is not None







     def       lowerCAmelCase_    (     self  ,		A=None  ,		A=0.0_5			)  ->   int:



          '''simple docstring'''



          if timeout is None:
               a     =				self.timeout

          # Increment the number right at the beginning.
          # We can still undo it, if something fails.
          with self._thread_lock:
               self._lock_counter += 1

          a     =				id(self			)
          a     =				self._lock_file
          a     =				time.time()
          try:
               while True:
                    with self._thread_lock:
                         if not self.is_locked:
                              logger().debug(F'''Attempting to acquire lock {lock_id} on {lock_filename}'''			)
                              self._acquire()

                    if self.is_locked:
                         logger().debug(F'''Lock {lock_id} acquired on {lock_filename}'''			)
                         break
                    elif timeout >= 0 and time.time() - start_time > timeout:
                         logger().debug(F'''Timeout on acquiring lock {lock_id} on {lock_filename}'''			)
                         raise Timeout(self._lock_file			)
                    else:
                         logger().debug(
                             F'''Lock {lock_id} not acquired on {lock_filename}, waiting {poll_intervall} seconds ...'''			)
                         time.sleep(lowerCamelCase__			)
          except:  # noqa
               # Something did go wrong, so decrement the counter.
               with self._thread_lock:
                    a     =				max(0  ,		self._lock_counter - 1			)

               raise
          return _Acquire_ReturnProxy(lock=self			)







     def       lowerCAmelCase_    (     self  ,		A=False			)  ->   List[str]:



          '''simple docstring'''



          with self._thread_lock:
               if self.is_locked:
                    self._lock_counter -= 1

                    if self._lock_counter == 0 or force:
                         a     =				id(self			)
                         a     =				self._lock_file

                         logger().debug(F'''Attempting to release lock {lock_id} on {lock_filename}'''			)
                         self._release()
                         a     =				0
                         logger().debug(F'''Lock {lock_id} released on {lock_filename}'''			)

          return None







     def __enter__(     self			)  ->   List[Any]:



          '''simple docstring'''



          self.acquire()
          return self







     def __exit__(     self  ,		A  ,		A  ,		A			)  ->   List[Any]:



          '''simple docstring'''



          self.release()
          return None







     def __del__(     self			)  ->   int:



          '''simple docstring'''



          self.release(force=lowerCamelCase__			)
          return None







     def       lowerCAmelCase_    (     self  ,		A  ,		A			)  ->   int:



          '''simple docstring'''



          a     =				os.path.basename(lowerCamelCase__			)
          if len(lowerCamelCase__			) > max_length and max_length > 0:
               a     =				os.path.dirname(lowerCamelCase__			)
               a     =				str(hash(lowerCamelCase__			)			)
               a     =				filename[: max_length - len(lowerCamelCase__			) - 8] + "..." + hashed_filename + ".lock"
               return os.path.join(lowerCamelCase__  ,		lowerCamelCase__			)
          else:
               return path







class       a__	( A__				):







     def __init__(     self  ,		A  ,		A=-1  ,		A=None			)  ->   Dict:



          '''simple docstring'''



          from .file_utils import relative_to_absolute_path

          super().__init__(lowerCamelCase__  ,		timeout=lowerCamelCase__  ,		max_filename_length=lowerCamelCase__			)
          a     =				"\\\\?\\" + relative_to_absolute_path(self.lock_file			)







     def       lowerCAmelCase_    (     self			)  ->   Dict:



          '''simple docstring'''



          a     =				os.O_RDWR | os.O_CREAT | os.O_TRUNC

          try:
               a     =				os.open(self._lock_file  ,		lowerCamelCase__			)
          except OSError:
               pass
          else:
               try:
                    msvcrt.locking(lowerCamelCase__  ,		msvcrt.LK_NBLCK  ,		1			)
               except OSError:
                    os.close(lowerCamelCase__			)
               else:
                    a     =				fd
          return None







     def       lowerCAmelCase_    (     self			)  ->   int:



          '''simple docstring'''



          a     =				self._lock_file_fd
          a     =				None
          msvcrt.locking(lowerCamelCase__  ,		msvcrt.LK_UNLCK  ,		1			)
          os.close(lowerCamelCase__			)

          try:
               os.remove(self._lock_file			)
          # Probably another instance of the application
          # that acquired the file lock.
          except OSError:
               pass
          return None







class       a__	( A__				):







     def __init__(     self  ,		A  ,		A=-1  ,		A=None			)  ->   Any:



          '''simple docstring'''



          a     =				os.statvfs(os.path.dirname(lowerCamelCase__			)			).f_namemax
          super().__init__(lowerCamelCase__  ,		timeout=lowerCamelCase__  ,		max_filename_length=lowerCamelCase__			)







     def       lowerCAmelCase_    (     self			)  ->   str:



          '''simple docstring'''



          a     =				os.O_RDWR | os.O_CREAT | os.O_TRUNC
          a     =				os.open(self._lock_file  ,		lowerCamelCase__			)

          try:
               fcntl.flock(lowerCamelCase__  ,		fcntl.LOCK_EX | fcntl.LOCK_NB			)
          except OSError:
               os.close(lowerCamelCase__			)
          else:
               a     =				fd
          return None







     def       lowerCAmelCase_    (     self			)  ->   Optional[Any]:



          '''simple docstring'''



          a     =				self._lock_file_fd
          a     =				None
          fcntl.flock(lowerCamelCase__  ,		fcntl.LOCK_UN			)
          os.close(lowerCamelCase__			)
          return None







class       a__	( A__				):







     def       lowerCAmelCase_    (     self			)  ->   List[Any]:



          '''simple docstring'''



          a     =				os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_TRUNC
          try:
               a     =				os.open(self._lock_file  ,		lowerCamelCase__			)
          except OSError:
               pass
          else:
               a     =				fd
          return None







     def       lowerCAmelCase_    (     self			)  ->   Any:



          '''simple docstring'''



          os.close(self._lock_file_fd			)
          a     =				None

          try:
               os.remove(self._lock_file			)
          # The file is already deleted and that's what we want.
          except OSError:
               pass
          return None







lowercase__				:      List[str]	   = None

if msvcrt:
   lowercase__				:      Optional[int]	   = WindowsFileLock
elif fcntl:
   lowercase__				:      List[str]	   = UnixFileLock
else:
   lowercase__				:      Any	   = SoftFileLock

   if warnings is not None:
      warnings.warn("only soft file lock is available")







lowercase__				:      List[Any]	   = {
    "a": "AAAAA",
    "b": "AAAAB",
    "c": "AAABA",
    "d": "AAABB",
    "e": "AABAA",
    "f": "AABAB",
    "g": "AABBA",
    "h": "AABBB",
    "i": "ABAAA",
    "j": "BBBAA",
    "k": "ABAAB",
    "l": "ABABA",
    "m": "ABABB",
    "n": "ABBAA",
    "o": "ABBAB",
    "p": "ABBBA",
    "q": "ABBBB",
    "r": "BAAAA",
    "s": "BAAAB",
    "t": "BAABA",
    "u": "BAABB",
    "v": "BBBAB",
    "w": "BABAA",
    "x": "BABAB",
    "y": "BABBA",
    "z": "BABBB",
    " ": " ",
}


lowercase__				:      str	   = {value: key for key, value in encode_dict.items()}

def  SCREAMING_SNAKE_CASE							(       __UpperCamelCase)      ->					str:
     a     =				""
     for letter in word.lower():
          if letter.isalpha() or letter == " ":
               encoded += encode_dict[letter]
          else:
               raise Exception("encode() accepts only letters of the alphabet and spaces")
     return encoded

def  SCREAMING_SNAKE_CASE							(       __UpperCamelCase)      ->					str:
     if set(__UpperCamelCase) - {"A", "B", " "} != set():
          raise Exception("decode() accepts only 'A', 'B' and spaces")
     a     =				""
     for word in coded.split():
          while len(__UpperCamelCase) != 0:
               decoded += decode_dict[word[:5]]
               a     =				word[5:]
          decoded += " "
     return decoded.strip()


if __name__ == "__main__":
   from doctest import testmod

   testmod()

