o ô<âgã @sŠdZddlZdZdd„Zejdkr‘ddlZddlmZmZm Z m Z m Z m Z m Z mZmZddlmZmZmZdZd Zd Zee ƒeeƒkrFe Zne ZeZGd d „d eƒZGd d„de ƒZGdd„deƒZeeƒZe dƒZejZee_eeeeeege_ ej!Z!ee!_eeeeege!_ dd„Z"dd„Z#dSzddl$Z$e$jZe$jZe$jZWne%e&fyºdZZZdd„Z"dd„Z#YdSwdd„Z"dd„Z#dS)am Portable file locking utilities. Based partially on an example by Jonathan Feignberg in the Python Cookbook [1] (licensed under the Python Software License) and a ctypes port by Anatoly Techtonik for Roundup [2] (license [3]). [1] https://code.activestate.com/recipes/65203/ [2] https://sourceforge.net/p/roundup/code/ci/default/tree/roundup/backends/portalocker.py # NOQA [3] https://sourceforge.net/p/roundup/code/ci/default/tree/COPYING.txt Example Usage:: >>> from django.core.files import locks >>> with open('./file', 'wb') as f: ... locks.lock(f, locks.LOCK_EX) ... f.write('Django') éN)ÚLOCK_EXÚLOCK_SHÚLOCK_NBÚlockÚunlockcCst|dƒr | ¡S|S)zCGet a filedescriptor from something which could be a file or an fd.Úfileno)Úhasattrr©Úf©r úJ/var/www/html/venv/lib/python3.10/site-packages/django/core/files/locks.pyÚ_fdsr Únt) ÚPOINTERÚ StructureÚUnionÚWinDLLÚbyrefÚc_int64Úc_ulongÚc_void_pÚsizeof)ÚBOOLÚDWORDÚHANDLEééc@seZdZdefdefgZdS)Ú_OFFSETÚOffsetÚ OffsetHighN)Ú__name__Ú __module__Ú __qualname__rÚ_fields_r r r r r:src@s"eZdZdgZdefdefgZdS)Ú _OFFSET_UNIONÚ_offsetÚPointerN)r r!r"Ú _anonymous_rÚPVOIDr#r r r r r$=sr$c@s.eZdZdgZdefdefdefdefgZdS)Ú OVERLAPPEDÚ _offset_unionÚInternalÚ InternalHighÚhEventN)r r!r"r'Ú ULONG_PTRr$rr#r r r r r)Asür)Úkernel32cCs2t t|ƒ¡}tƒ}t||dddt|ƒƒ}t|ƒS©Nrlþ)ÚmsvcrtÚ get_osfhandler r)Ú LockFileExrÚbool)r ÚflagsÚhfileÚ overlappedÚretr r r rUsrcCs0t t|ƒ¡}tƒ}t|dddt|ƒƒ}t|ƒSr0)r1r2r r)Ú UnlockFileExrr4)r r6r7r8r r r r[srcCódS)NFr ©r r5r r r rmócCr:©NTr r r r r rqr<cCs,z t t|ƒ|¡WdStyYdSw)NTF)ÚfcntlÚflockr ÚBlockingIOErrorr;r r r rws  ÿcCst t|ƒtj¡dSr=)r>r?r ÚLOCK_UNr r r r r~s)'Ú__doc__ÚosÚ__all__r Únamer1ÚctypesrrrrrrrrrÚctypes.wintypesrrrrrrr.r(rr$r)Ú LPOVERLAPPEDr/r3ÚrestypeÚargtypesr9rrr>Ú ImportErrorÚAttributeErrorr r r r ÚsP ,     ÷