o iD@sdZzddlZWn eydZYnwddlZddlZddlZddlZddlZddlm Z ddl m Z ddl m Z Gddde ZGdd d e ZdS) zA parent poller for unix.N)interrupt_main)Thread) get_loggerc*eZdZdZdfdd ZddZZS)ParentPollerUnixzxA Unix-specific daemon thread that terminates the program immediately when the parent process no longer exists. rcst||_d|_dS)zInitialize the poller. Parameters ---------- parent_handle : int, optional If provided, the program will terminate immediately when process parent is no longer this original parent. TN)super__init__ parent_piddaemon)selfr  __class__Q/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/ipykernel/parentpoller.pyrs  zParentPollerUnix.__init__c Csddlm}t}||jkrd|_tdt|j|j z*t}|j o+|dk}|jo3||jk}|s8|rCt dt dt dWnt ya}z |j|kr\WYd}~qd}~wwq) zRun the poller.r)EINTRz6%s: poll for parent change with original parent pid=%dT-Parent appears to have exited, shutting down.g?N)errnorosgetppidr rdebugtype__name__warning_exittimesleepOSError)r r original_ppidppidparent_is_initparent_has_changederrrrun&s2      zParentPollerUnix.run)rr __module__ __qualname____doc__rr# __classcell__rrr rrs rcr)ParentPollerWindowszA Windows-specific daemon thread that listens for a special event that signals an interrupt and, optionally, terminates the program immediately when the parent process no longer exists. Ncs@|s|sJttdurd}t|d|_||_||_dS)aCreate the poller. At least one of the optional parameters must be provided. Parameters ---------- interrupt_handle : HANDLE (int), optional If provided, the program will generate a Ctrl+C event when this handle is signaled. parent_handle : HANDLE (int), optional If provided, the program will terminate immediately when this handle is signaled. Nz#ParentPollerWindows requires ctypesT)rrctypes ImportErrorr interrupt_handle parent_handle)r r,r-msgr rrrKs  zParentPollerWindows.__init__cCs>z ddlm}m}Wntyddlm}m}Ynwg}|jr'||j|jr0||jt d}| dr>t j nt j } t jjt||t||d|}||kr`t|krnn/|||}t jj|||jkrtttjrtn||jkrtdtdn |dkrtjdd d d SqB) z-Run the poll loop. This method never returns.r)INFINITE WAIT_OBJECT_064TFrrzParent poll failed. If the frontend dies, the kernel may be left running. Please let us know about your system (bitness, Python, etc.) at ipython-dev@scipy.org) stacklevelN)_winapir/r0r+ _subprocessr,appendr-platform architecture startswithr*c_int64c_intwindllkernel32WaitForMultipleObjectslen ResetEventcallablesignal getsignalSIGINTrrrrrwarningswarn)r r/r0handlesarchr;resulthandlerrrr#asJ         zParentPollerWindows.run)NNr$rrr rr)Esr))r'r*r+rr7rBrrE_threadr threadingr traitlets.logrrr)rrrrs      1