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/ (Root)
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usr
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lib
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python3.6
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site-packages
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pip
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_vendor
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lockfile
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__pycache__
📍 /usr/lib/python3.6/site-packages/pip/_vendor/lockfile/__pycache__
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Editing: linklockfile.cpython-36.pyc
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3 �Pf\ � @ sP d dl mZ d dlZd dlZddlmZmZmZmZm Z m Z G dd� de�Z dS )� )�absolute_importN� )�LockBase� LockFailed� NotLocked� NotMyLock� LockTimeout� AlreadyLockedc @ s: e Zd ZdZd dd�Zdd� Zdd� Zd d � Zd d � ZdS )� LinkLockFilez�Lock access to a file using atomic property of link(2). >>> lock = LinkLockFile('somefile') >>> lock = LinkLockFile('somefile', threaded=False) Nc C s" yt | jd�j� W n" tk r6 td| j ��Y nX |d k rD|n| j}tj� }|d k rj|dkrj||7 }x�ytj| j| j � W n� t k �r tj | j�j }|dkr�d S |d k r�tj� |kr�tj | j� |dkr�td| j ��ntd| j ��tj|d k �r |d �p d� Y qlX d S qlW d S ) N�wbzfailed to create %sr � z&Timeout waiting to acquire lock for %sz%s is already locked� g�������?)�open� unique_name�close�IOErrorr �timeout�time�os�link� lock_file�OSError�stat�st_nlink�unlinkr �pathr Zsleep)�selfr Zend_timeZnlinks� r �"/usr/lib/python3.6/linklockfile.py�acquire s0 $zLinkLockFile.acquirec C sP | j � std| j ��n tjj| j�s4td| j ��tj| j� tj| j� d S )Nz%s is not lockedz%s is locked, but not by me) � is_lockedr r r �existsr r r r )r r r r �release7 s zLinkLockFile.releasec C s t jj| j�S )N)r r r! r )r r r r r ? s zLinkLockFile.is_lockedc C s( | j � o&tjj| j�o&tj| j�jdkS )Nr )r r r r! r r r )r r r r � i_am_lockingB s zLinkLockFile.i_am_lockingc C s t jj| j�rt j| j� d S )N)r r r! r r )r r r r � break_lockG s zLinkLockFile.break_lock)N) �__name__� __module__� __qualname__�__doc__r r" r r# r$ r r r r r s &r ) Z __future__r r r � r r r r r r r r r r r �<module> s
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