o Zh@sdZzddlZWn eydZYnwddlZddlZddlZddlZddlZddlm Z ddl m Z ddl m Z Gddde ZGdd d e ZdS) zA parent poller for unix.N)interrupt_main)Thread) get_loggercs(eZdZdZfddZddZZS)ParentPollerUnixzxA Unix-specific daemon thread that terminates the program immediately when the parent process no longer exists. cstd|_dS)zInitialize the poller.TN)super__init__daemon)self __class__M/var/www/html/lang_env/lib/python3.10/site-packages/ipykernel/parentpoller.pyrs  zParentPollerUnix.__init__c Csrddlm} ztdkrtdtdtdWnt y7}z |j|kr2WYd}~qd}~wwq)zRun the poller.r)EINTRT-Parent appears to have exited, shutting down.g?N) errnorosgetppidrwarning_exittimesleepOSError)r rer r r runs      zParentPollerUnix.run__name__ __module__ __qualname____doc__rr __classcell__r r r r rs rcs*eZdZdZdfdd ZddZZS)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 ImportErrorrinterrupt_handle parent_handle)r r$r%msgr r r r5s  zParentPollerWindows.__init__cCs0z ddlm}m}Wntyddlm}m}Ynwg}|jr'||j|jr0||jt d}| dr>t j nt j } t jjt||t||d|}||kr`t|krnn(|||}||jkrytttjrxtn||jkrtdtdn |dkrtjdd d d SqB) z-Run the poll loop. This method never returns.r)INFINITE WAIT_OBJECT_0Z64TFrrzParent poll failed. If the frontend dies, the kernel may be left running. Please let us know about your system (bitness, Python, etc.) at ipython-dev@scipy.org) stacklevelN)Z_winapir'r(r#Z _subprocessr$appendr%platform architecture startswithr"Zc_int64c_intZwindllZkernel32ZWaitForMultipleObjectslencallablesignal getsignalSIGINTrrrrrwarningswarn)r r'r(Zhandlesarchr/resulthandler r r rKsH         zParentPollerWindows.run)NNrr r r r r!/sr!)rr"r#rr,r2rr5_threadr threadingrZ traitlets.logrrr!r r r r s