o 1< i ã@s4ddlZddlmZddlmZGdd„deƒZdS)éN)ÚMutableMapping)Ú lru_cachec@s`eZdZdZ   ddd„Zdd„Zdd „Zd d „Zd d „Zdd„Z dd„Z dd„Z dd„Z dS)ÚDirCachea– Caching of directory listings, in a structure like:: {"path0": [ {"name": "path0/file0", "size": 123, "type": "file", ... }, {"name": "path0/file1", }, ... ], "path1": [...] } Parameters to this class control listing expiry or indeed turn caching off TNc s@iˆ_iˆ_|rt|dƒ‡fdd„ƒˆ_|ˆ_|ˆ_|ˆ_dS)a Parameters ---------- use_listings_cache: bool If False, this cache never returns items, but always reports KeyError, and setting items has no effect listings_expiry_time: int or float (optional) Time in seconds that a listing is considered valid. If None, listings do not expire. max_paths: int (optional) The number of most recent listings that are considered valid; 'recent' refers to when the entry was set. écsˆj |d¡S©N)Ú_cacheÚpop)Úkey©Úself©úJ/home/app/PyTorch/.pytorch/lib/python3.10/site-packages/fsspec/dircache.pyÚ3sz#DirCache.__init__..N)rÚ_timesrÚ_qÚuse_listings_cacheÚlistings_expiry_timeÚ max_paths)r rrrÚkwargsr r r Ú__init__s zDirCache.__init__cCsJ|jdur|j |d¡t ¡|j kr|j|=|jr | |¡|j|S)Nr)rrÚgetÚtimerrr©r Úitemr r r Ú __getitem__8s   zDirCache.__getitem__cCs|j ¡dSr)rÚclearr r r r r@szDirCache.clearcCs t|jƒSr)Úlenrr r r r Ú__len__Cs zDirCache.__len__cCs$z||WdStyYdSw)NTF)ÚKeyErrorrr r r Ú __contains__Fs  ÿzDirCache.__contains__cCsD|jsdS|jr | |¡||j|<|jdur t ¡|j|<dSdSr)rrrrrrr)r r Úvaluer r r Ú __setitem__Ms   ÿzDirCache.__setitem__cCs |j|=dSr)r)r r r r r Ú __delitem__Vs zDirCache.__delitem__cstˆjƒ}‡fdd„|DƒS)Nc3s|] }|ˆvr|VqdSrr )Ú.0Úkr r r Ú \s€z$DirCache.__iter__..)Úlistr)r Úentriesr r r Ú__iter__Ys zDirCache.__iter__cCst|j|j|jffSr)rrrrr r r r Ú __reduce__^sþzDirCache.__reduce__)TNN) Ú__name__Ú __module__Ú __qualname__Ú__doc__rrrrrr!r"r(r)r r r r rs ü  r)rÚcollections.abcrÚ functoolsrrr r r r Ús