File: //usr/lib/python3/dist-packages/filelock/__pycache__/_windows.cpython-310.pyc
o
;�bb � @ s� d dl mZ d dlZd dlZd dlmZ d dlmZ ddlm Z ddl
m Z ej dkr8d dl
Z
G d d
� d
e �ZnG d d
� d
e �Zd
gZdS ) � )� annotationsN)�ENOENT)�cast� )� BaseFileLock)�raise_on_exist_ro_file�win32c @ �$ e Zd ZdZd dd�Zd dd�ZdS )
�WindowsFileLock�WUses the :func:`msvcrt.locking` function to hard lock the lock file on windows systems.�return�Nonec
C s� t | j� tjtjB tjB }z t�| j|�}W n ty0 } z
|jt kr%� W Y d }~d S d }~ww z
t
� |t
j d� W n tyJ t�
|� Y d S w || _d S �Nr )r �
_lock_file�os�O_RDWR�O_CREAT�O_TRUNC�open�OSError�errnor �msvcrt�locking�LK_NBLCK�close�
_lock_file_fd)�self�mode�fd� exception� r �3/usr/lib/python3/dist-packages/filelock/_windows.py�_acquire s*
���
��� �
�WindowsFileLock._acquirec C sT t t| j�}d | _t�|tjd� t�|� z t�| j � W d S t
y) Y d S w r ) r �intr r r �LK_UNLCKr r �remover r )r r r r r! �_release% s
��WindowsFileLock._releaseN�r r
��__name__�
__module__� __qualname__�__doc__r" r' r r r r! r
s
r
c @ r )
r
r r r
c C � t ��N��NotImplementedError�r r r r! r" 6 � r# c C r/ r0 r1 r3 r r r! r' 9 r4 r( Nr) r* r r r r! r
3 s
)�
__future__r r �sysr r �typingr �_apir �_utilr �platformr r
�__all__r r r r! �<module> s
% �