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This function is a coroutine. Nrr")rrr r*ro_cancel_and_waitrr TimeoutError create_future call_laterr functoolspartialrrremove_done_callback)futrr#rrtimeout_handlecbs r$rrs  " $ $Dyyyyyy!||Cd+++ 88:: ::<< s.......... 5::<< ( 5 5 5)++ 4 5   ! !F__WovFFN  ?F 3 3B $ ' ' 'C"  LLLLLLLL(   xxzz zz||##2 /((,,,'s6666666666  88:: 9::<<   $ $R ( ( (#3T222 2 2 2 2 2 2 2 9zz|| , 9 9 9 -//S8 9 sf7B B3B..B3(D10I+17F,(I+>.F,,*I++,I+II(I##I((I++Jc K|s Jd| d |||t  t| fd}|D]}|| d{V  |D]}||n5#  |D]}||wxYwtt}}|D]A}|r| |,| |B||fS)zVInternal helper for wait(). The fs argument must be a collection of Futures. zSet of Futures is empty.Nc(dzdks>tks3tkri|sW|EsddSdSdSdSdS)Nrr)rr cancelledrrrr*rp)rcounterrrrs r$_on_completionz_wait.._on_completions1  qLL ? * * ? * *AKKMM *01 0I)%%''';;== (!!$''''' + * * *0I0I ( (r%) rrrlenrrrrr*add) rrrr#rrr*pendingrrrs ` @@@r$rrs )))))2    ! !FN/6JJ"ggG ( ( ( ( ( ( ( (,, N++++3  %  ! ! # # # 3 3A " "> 2 2 2 2 3  %  ! ! # # # 3 3A " "> 2 2 2 2 3EE355'D  6688  HHQKKKK KKNNNN =s 9B222C$c(K|}tjt|}|| ||d{V||dS#||wxYw)z.Qs& 9 9 9AM!$ ' ' ' 9 9 9r%NcD],}|d-dSrb)r put_nowaitclear)rrr*todos r$ _on_timeoutz!as_completed.._on_timeoutTsL " "A " "> 2 2 2 OOD ! ! ! ! r%csdS||sdSdSdSrb)removerr)rr*rrs r$rz$as_completed.._on_completionZsf  F A  $2  ! ! # # # # # $ $22r%cKd{V}| tj|Srb)r!rrro)rr*s r$ _wait_for_onez#as_completed.._wait_for_onebsB((**       9) )xxzzr%)rrrrGrIrrqueuesrr_get_event_looprrrranger) rrrrrr_rr*r#rrs @@@@@r$r r 8s$Sz5b99SQd2hh>OQQRRR 577D  ! # #D 9 9 9 9R 9 9 9DN $$$$$$$,, N++++ ?#+>> 3t99  moor%c#KdVdS)zSkip one event loop run cycle. This is a private helper for 'asyncio.sleep()', used when the 'delay' is set to 0. It uses a bare 'yield' expression (which Task.__step knows how to handle) instead of creating a Future object. Nr(r(r%r$__sleep0rqs EEEEEr%c>K|dkrtd{V|Stj}|}||t j||} |d{V |S#|wxYw)z9Coroutine that completes after a given time (in seconds).rN)rrrrrr_set_result_unless_cancelledr)delayror#rhs r$r r }s zzjj  " $ $D    ! !F < ( (A||||||   s )BBr"c$t||S)zmWrap a coroutine or an awaitable in a future. If the argument is a Future, it is returned directly. r")_ensure_future)coro_or_futurer#s r$r r s .t 4 4 44r%ctj|r)|%|tj|urtd|Sd}t j|s5t j|rt|}d}ntd|tj d} | |S#t$r|s|wxYw)NzRThe future belongs to a different loop than the one specified as the loop argumentFTz:An asyncio.Future, a coroutine or an awaitable is requiredr5)rrr)rrrGr isawaitable_wrap_awaitablerIrrrr0close)rr#called_wrap_awaitables r$rrs''  G,=n,M,M M MEFF F!  !. 1 1+  ~ . . +,^<tj}| g S fd}i}gd dd}d |D]u}||vrRt ||}|t j|}||urd|_ dz |||<||n||} |vt| S)aReturn a future aggregating results from the given coroutines/futures. Coroutines will be wrapped in a future and scheduled in the event loop. They will not necessarily be scheduled in the same order as passed in. All futures must share the same event loop. If all the tasks are done successfully, the returned future's result is the list of results (in the order of the original sequence, not necessarily the order of results arrival). If *return_exceptions* is True, exceptions in the tasks are treated the same as successful results, and gathered in the result list; otherwise, the first raised exception will be immediately propagated to the returned future. Cancellation: if the outer Future is cancelled, all children (that have not completed yet) are also cancelled. If any child is cancelled, this is treated as if it raised CancelledError -- the outer Future is *not* cancelled in this case. (This is to prevent the cancellation of one child to cause other children to be cancelled.) If *return_exceptions* is False, cancelling gather() after it has been marked done won't cancel any submitted awaitables. For instance, gather can be marked done after propagating an exception to the caller, therefore, calling ``gather.cancel()`` after catching an exception (raised by one of the awaitables) from gather won't cancel any other awaitables. cdz r*|s|dSsl|r+|}|dS|}||dSkrg}D]x}|r#t j|jdn|j}n*|}||}| |yj r+|}|dS |dSdS)Nr) r*rrrrrsrrrroappendrrp) rrresultsresr nfinishednfutsouterrs r$_done_callbackzgather.._done_callbacksQ =EJJLL===??   F }} //11##C(((mmoo?'',,,F   G $ $==?? +%3!19+--CC--//C{!jjlls####& *//11##C(((((  )))));  r%rNr"Fr) rrrrprrr)rHrrr) rcoros_or_futuresr#r arg_to_futargrrrrrs ` @@@@r$r r sK< %''""$$  5*5*5*5*5*5*5*5*5*nJH EI D E j  4000C|(--#~~ ,1( QJE!JsO  ! !. 1 1 1 1S/C XD 1 1 1E Lr%ct|rStj}|fdfd}|S)aWait for a future, shielding it from cancellation. The statement task = asyncio.create_task(something()) res = await shield(task) is exactly equivalent to the statement res = await something() *except* that if the coroutine containing it is cancelled, the task running in something() is not cancelled. From the POV of something(), the cancellation did not happen. But its caller is still cancelled, so the yield-from expression still raises CancelledError. Note: If something() is cancelled by other means this will still cancel shield(). If you want to completely ignore cancellation (not recommended) you can combine shield() with a try/except clause, as follows: task = asyncio.create_task(something()) try: res = await shield(task) except CancelledError: res = None Save a reference to tasks passed to this function, to avoid a task disappearing mid-execution. The event loop only keeps weak references to tasks. 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Return a concurrent.futures.Future to access the result. zA coroutine object is requiredc tjtdS#ttf$rt $r/}r|d}~wwxYw)Nr")r _chain_futurer rrrset_running_or_notify_cancelrs)rrXrr#s r$callbackz*run_coroutine_threadsafe..callbacks   !-4"@"@"@& I I I I I-.       2244 *$$S)))  s$)A3*A..A3)rrGrI concurrentrFuturecall_soon_threadsafe)rXr#rrs`` @r$rrs{  !$ ' ':8999   & & ( (F h''' Mr%c.tj|dS)z3Register a new task in asyncio as executed by loop.N)r/rr<s r$rrsN4r%crtj|}|td|d|d|t|<dS)NzCannot enter into task z while another task z is being executed.r r!r0r#r<rs r$rrsf!%d++LGTGG#/GGGHH HN4r%crtj|}||urtd|d|dt|=dS)Nz Leaving task z! does not match the current task .rrs r$rrsi!%d++L4A4AA/;AAABB Btr%c.tj|dS)zUnregister a task.N)r/discardrs r$rrstr%)rrrrr/r rb)Cr__all__concurrent.futuresrrQrr itertoolstypesr9weakrefrrrrrrrrcount__next__rJrrr> _PyFuturer_PyTask_asyncio_CTask ImportErrorrrrrrrrrrr coroutinerr r rrrrr r rWeakSetr/r rrrr_py_register_task_py_unregister_task_py_enter_task_py_leave_task_c_register_task_c_unregister_task _c_enter_task _c_leave_taskr(r%r$r4sy66  %%%%%% %Y_Q''0$$$$>>>>.   [[[[[7 [[[| "OOO M!D66    D #D     $$4$4"0 # 77777@   D D D N)))X % % %"!%66666r   "+/55555,02...!.w~:16xxxxxv???D0W_        #&  6666666666666666 &)MMMM    DD s$BBBE88FF