U  W[ ã@stdZddlZddlZGdd„deƒZdd„Zdd„Zd d „Zd d „Zej   d ¡Z e s\e dƒ‚ej  e ¡ZeeƒdS)zŒ Very low-level ctypes-based interface to Linux inotify(7). ctypes and a version of libc which supports inotify system calls are required. éNc@seZdZdZdS)Ú INotifyErrorzR Unify all the possible exceptions that can be raised by the INotify API. N)Ú__name__Ú __module__Ú __qualname__Ú__doc__©rrú9/usr/lib/python3/dist-packages/twisted/python/_inotify.pyrsrcCst ¡}|dkrtdƒ‚|S)zO Create an inotify instance and return the associated file descriptor. rzINotify initialization error.)ÚlibcÚ inotify_initr)ÚfdrrrÚinitsr cCs0t || ¡j|¡}|dkr,td||fƒ‚|S)a‘ Add a watch for the given path to the inotify file descriptor, and return the watch descriptor. @param fd: The file descriptor returned by C{libc.inotify_init}. @type fd: L{int} @param path: The path to watch via inotify. @type path: L{twisted.python.filepath.FilePath} @param mask: Bitmask specifying the events that inotify should monitor. @type mask: L{int} rz"Failed to add watch on '%r' - (%r))r Úinotify_add_watchZ asBytesModeÚpathr)r rÚmaskÚwdrrrÚadd#srcCst ||¡dS)zM Remove the given watch descriptor from the inotify file descriptor. N)r Úinotify_rm_watch)r rrrrÚremove8srcCspdD]}t||dƒdkrtdƒ‚qg|j_tj|j_tjtjg|j_tj|j_tjtjtj g|j _tj|j _dS)zµ Initialize the module, checking if the expected APIs exist and setting the argtypes and restype for C{inotify_init}, C{inotify_add_watch}, and C{inotify_rm_watch}. )r r rNzlibc6 2.4 or higher needed) ÚgetattrÚ ImportErrorr ZargtypesÚctypesZc_intZrestyperZc_char_pZc_uint32r )r ZfunctionrrrÚinitializeModuleTs  ÿ ÿrÚczCan't find C library.)rrZ ctypes.utilÚ Exceptionrr rrrÚutilZ find_libraryÚnamerZcdllZ LoadLibraryr rrrrÚs