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The watcher has O(1) complexity, its performance doesn't depend on amount of spawn processes. cCstd|_i|_dSr) itertoolsr _pid_counter_threadsrrrrr?s zThreadedChildWatcher.__init__cCsdSrrrrrrrdCszThreadedChildWatcher.is_activecCs |dSr) _join_threadsrrrrr'FszThreadedChildWatcher.closecCs.ddt|jD}|D] }|qdS)z%Internal: Join all non-daemon threadscSsg|]}|r|js|qSr)is_alivedaemon.0threadrrr Ksz6ThreadedChildWatcher._join_threads..N)r*rzrMr)r!threadsrrrrr{Isz"ThreadedChildWatcher._join_threadscCs|Srrrrrrr=PszThreadedChildWatcher.__enter__cCsdSrrrqrrrrBSszThreadedChildWatcher.__exit__cCs6ddt|jD}|r2||jdt|ddS)NcSsg|]}|r|qSr)r|r~rrrrWsz0ThreadedChildWatcher.__del__..z0 has registered but not finished child processesr%)r*rzrMr$r.)r!rrrrrrVs  zThreadedChildWatcher.__del__cGsFt}tj|jdt|j||||fdd}||j|<|dS)Nzwaitpid-T)targetnamerKr}) rrtrjThreadr]nextryrzstart)r!ryrJrKrrrrrrg^s  z&ThreadedChildWatcher.add_child_handlercCsdSrrr9rrrr:gsz)ThreadedChildWatcher.remove_child_handlercCsdSrrr;rrrr<msz ThreadedChildWatcher.attach_loopcCs|dks Jzt|d\}}Wn&tyF|}d}td|Yn 0t|}|rftd|||r~td||n|j |||g|R|j |dS)NrrQrfrgru) rrSrTr r"rUrrrvrwrzrR)r!rr\rJrKryrVrzrrrr]ps&   z ThreadedChildWatcher._do_waitpidN)rrrrrrdr'r{r=rBr,r-rrgr:r<r]rrrrr2s  rcsHeZdZdZeZfddZddZfddZdd Z d d Z Z S) _UnixDefaultEventLoopPolicyz:UNIX event loop policy with a watcher for child processes.cstd|_dSr)rr_watcherrr#rrrs z$_UnixDefaultEventLoopPolicy.__init__cCs\tjB|jdur:t|_ttur:|j|jj Wdn1sN0YdSr) rrlrrrjcurrent_thread main_threadr<_localrrrrr _init_watchers  z)_UnixDefaultEventLoopPolicy._init_watchercs6t||jdur2ttur2|j|dS)zSet the event loop. As a side effect, if a child watcher was set before, then calling .set_event_loop() from the main thread will call .attach_loop(loop) on the child watcher. N)rset_event_looprrjrrr<r;r#rrrs   z*_UnixDefaultEventLoopPolicy.set_event_loopcCs|jdur||jS)z~Get the watcher for child processes. If not yet set, a ThreadedChildWatcher object is automatically created. N)rrrrrrrcs z-_UnixDefaultEventLoopPolicy.get_child_watchercCs4|dust|tsJ|jdur*|j||_dS)z$Set the watcher for child processes.N)rWrrr')r!rtrrrset_child_watchers  z-_UnixDefaultEventLoopPolicy.set_child_watcher) rrrrr _loop_factoryrrrrcrrrrr#rrs   r)3rrHrrxrrr>rrr/r(rjr,rrrrrrr r r r logr __all__r ImportErrorrZBaseSelectorEventLoopr ReadTransportrZ_FlowControlMixinWriteTransportraZBaseSubprocessTransportrfrrrUr[rrrrBaseDefaultEventLoopPolicyrrrrrrrsb             NON5Ji}Y2