oiDdZ ddlZddlZddlZddlZddlZddlZddlm Z ddl m Z ddl m Z Gdde ZGdd e Zy#e$rdZYFwxYw) zA parent poller for unix.N)interrupt_main)Thread) get_loggerc*eZdZdZdfd ZdZxZS)ParentPollerUnixzxA Unix-specific daemon thread that terminates the program immediately when the parent process no longer exists. c>t|||_d|_y)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__s ^/home/ubuntu/docker-apps/notebooks/venv/lib/python3.12/site-packages/ipykernel/parentpoller.pyr zParentPollerUnix.__init__s $ c<ddlm}tj}||jk7rd|_t j dt|j|j tj}|j xr|dk(}|jxr||jk7}|s|r.t jdtjdtjd#t$r}|j|k(rYd}~d}~wwxYw)zRun the poller.r)EINTRz6%s: poll for parent change with original parent pid=%d-Parent appears to have exited, shutting down.g?N)errnorosgetppidr rdebugtype__name__warning_exittimesleepOSError)r r original_ppidppidparent_is_initparent_has_changedes rrunzParentPollerUnix.run&s  DOO +DO  D J   OO  zz|%)__!4!B%)__%P9P"!%7L(()XYHHQK 3 77e# s+B C88 DDDD)rr __module__ __qualname____doc__r r% __classcell__rs@rrrs rrc*eZdZdZdfd ZdZxZS)ParentPollerWindowszA Windows-specific daemon thread that listens for a special event that signals an interrupt and, optionally, terminates the program immediately when the parent process no longer exists. c~|s|sJt|t d}t|d|_||_||_y)aCreate the poller. At least one of the optional parameters must be provided. Parameters ---------- interrupt_handle : HANDLE (int), optional If provided, the program will generate a Ctrl+C event when this handle is signaled. parent_handle : HANDLE (int), optional If provided, the program will terminate immediately when this handle is signaled. Nz#ParentPollerWindows requires ctypesT)r r ctypes ImportErrorr interrupt_handle parent_handle)r r1r2msgrs rr zParentPollerWindows.__init__KsG =00  >7Cc" " 0*rc ddlm}m}g}|j r|j |j |jr|j |jtjd}|jdrtjntj} tjjj!t#||t#|z|d|}||cxkrt#|krnn|||z }tjjj%|||j k(r7t't)j*t(j,rft/n[||jk(rLt1j3dt5j6dn|dkrt9j:dd y /#t$r ddlm}m}YwxYw) z-Run the poll loop. This method never returns.r)INFINITE WAIT_OBJECT_064FrrzParent 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)_winapir5r6r0 _subprocessr1appendr2platform architecture startswithr/c_int64c_intwindllkernel32WaitForMultipleObjectslen ResetEventcallablesignal getsignalSIGINTrrrrrwarningswarn)r r5r6handlesarchrAresulthandles rr%zParentPollerWindows.runas < 7   NN400 1    NN4-- .$$&q)"&//$"7V\\]]++BBG %W%0 F5W5 -!78 &&11&9T222  0 0 ?@&(t111L(()XYHHQK! ) ! = < ; ; rUs\  "$.v.bK&K} FsAAA