a
    [f                     @   s4   d Z ddlmZ G dd deZG dd deZdS )zb
The cache object API for implementing caches. The default is a thread
safe in-memory dictionary.
    )Lockc                   @   s.   e Zd Zdd Zd
ddZdd Zdd	 ZdS )	BaseCachec                 C   s
   t  d S NNotImplementedErrorselfkey r
   pC:\Users\91910\OneDrive\Desktop\vts_admin_rebuild-master\vts\Lib\site-packages\pip/_vendor/cachecontrol/cache.pyget   s    zBaseCache.getNc                 C   s
   t  d S r   r   r   r	   valueexpiresr
   r
   r   set   s    zBaseCache.setc                 C   s
   t  d S r   r   r   r
   r
   r   delete   s    zBaseCache.deletec                 C   s   d S r   r
   )r   r
   r
   r   close   s    zBaseCache.close)N)__name__
__module____qualname__r   r   r   r   r
   r
   r
   r   r      s   
r   c                   @   s0   e Zd Zd
ddZdd ZdddZdd	 ZdS )	DictCacheNc                 C   s   t  | _|pi | _d S r   )r   lockdata)r   	init_dictr
   r
   r   __init__   s    zDictCache.__init__c                 C   s   | j |d S r   )r   r   r   r
   r
   r   r   !   s    zDictCache.getc                 C   s:   | j   | j||i W d    n1 s,0    Y  d S r   )r   r   updater   r
   r
   r   r   $   s    zDictCache.setc                 C   s@   | j & || jv r| j| W d    n1 s20    Y  d S r   )r   r   popr   r
   r
   r   r   (   s    
zDictCache.delete)N)N)r   r   r   r   r   r   r   r
   r
   r
   r   r      s   

r   N)__doc__	threadingr   objectr   r   r
   r
   r
   r   <module>   s   