U e5dYу @spdZddlZddlZddlZddlZdZdZdZdZdZ dZ d Zd ZdZ e e eee gZe de d edede diZeаdбZGddДdeГZGddДdeГZGddДdeГZGddДdeГZGddДdeГZGddДdeГZGddДdeГZGdd Дd eГZGd!d"Дd"eГZd#d$ДZd%d&ДZd3d'd(ДZeа d)d*бZ!defd+d,ДZ"Gd-d.Дd.eГZ#Gd/d0Дd0eГZ$Gd1d2Дd2e%ГZ&dS)4z"Brian Quinlan (brian@sweetapp.com)щN┌FIRST_COMPLETED┌FIRST_EXCEPTION┌ ALL_COMPLETED┌ _AS_COMPLETED┌PENDING┌RUNNING┌ CANCELLED┌CANCELLED_AND_NOTIFIED┌FINISHED┌pending┌running┌ cancelled┌finishedzconcurrent.futuresc@seZdZdZdS)┌Errorz-Base class for all future-related exceptions.Nй┌__name__┌ __module__┌__qualname__┌__doc__йrr·0/usr/lib64/python3.8/concurrent/futures/_base.pyr,src@seZdZdZdS)┌CancelledErrorzThe Future was cancelled.Nrrrrrr0src@seZdZdZdS)┌TimeoutErrorz*The operation exceeded the given deadline.Nrrrrrr4src@seZdZdZdS)┌InvalidStateErrorz+The operation is not allowed in this state.Nrrrrrr8src@s0eZdZdZddДZddДZddДZdd ДZd S)┌_Waiterz;Provides the event that wait() and as_completed() block on.cCstаб|_g|_dSйN)┌ threadingZEvent┌event┌finished_futuresй┌selfrrr┌__init__>s z_Waiter.__init__cCs|jа|бdSrйr┌appendйr ┌futurerrr┌ add_resultBsz_Waiter.add_resultcCs|jа|бdSrr"r$rrr┌ add_exceptionEsz_Waiter.add_exceptioncCs|jа|бdSrr"r$rrr┌ add_cancelledHsz_Waiter.add_cancelledN)rrrrr!r&r'r(rrrrr<s rcsDeZdZdZЗfddДZЗfddДZЗfddДZЗfdd ДZЗZS) ┌_AsCompletedWaiterzUsed by as_completed().cstt|Габtаб|_dSr)┌superr)r!r┌Lock┌lockrй┌ __class__rrr!Nsz_AsCompletedWaiter.__init__c s0|jП tt|Га|б|jабW5QRXdSr)r,r*r)r&r┌setr$r-rrr&Rsz_AsCompletedWaiter.add_resultc s0|jП tt|Га|б|jабW5QRXdSr)r,r*r)r'rr/r$r-rrr'Wsz _AsCompletedWaiter.add_exceptionc s0|jП tt|Га|б|jабW5QRXdSr)r,r*r)r(rr/r$r-rrr(\sz _AsCompletedWaiter.add_cancelled) rrrrr!r&r'r(┌ __classcell__rrr-rr)Ks r)cs8eZdZdZЗfddДZЗfddДZЗfddДZЗZS)┌_FirstCompletedWaiterz*Used by wait(return_when=FIRST_COMPLETED).cstГа|б|jабdSr)r*r&rr/r$r-rrr&dsz _FirstCompletedWaiter.add_resultcstГа|б|jабdSr)r*r'rr/r$r-rrr'hsz#_FirstCompletedWaiter.add_exceptioncstГа|б|jабdSr)r*r(rr/r$r-rrr(lsz#_FirstCompletedWaiter.add_cancelled)rrrrr&r'r(r0rrr-rr1asr1csLeZdZdZЗfddДZddДZЗfddДZЗfdd ДZЗfd dДZЗZ S)┌_AllCompletedWaiterzrArrrrr7Оsr7cCsД|tkrtГ}nZ|tkr tГ}nJtddД|DГГ}|tkrHt|ddН}n"|tkr^t|ddН}ntd|ГВ|D]}|j а |бqn|S)Ncss|]}|jttfkVqdSrй┌_stater r й┌.0┌frrr┌ вsz._create_and_install_waiters..T)r4FzInvalid return condition: %r)rr)rr1┌sumrr2r┌ ValueError┌_waitersr#)┌fs┌return_when┌waiterZ pending_countrFrrr┌_create_and_install_waitersЬs rNc csP|rL|d}|D]}|а|бq|jП|jа|бW5QRX~|абVqdS)a~ Iterate on the list *fs*, yielding finished futures one by one in reverse order. Before yielding a future, *waiter* is removed from its waiters and the future is removed from each set in the collection of sets *ref_collect*. The aim of this function is to avoid keeping stale references after the future is yielded and before the iterator resumes. щ N)┌remover<rJ┌pop)rKrM┌ref_collectrFZfutures_setrrr┌_yield_finished_futures▓srSc csB|dk r|tаб}t|Г}t|Г}t|ГП*tddД|DГГ}||}t|tГ}W5QRXt|Г}zмt|||fdНEdH|Рr|dkrРd}n(|tаб}|dkr╕tdt|Г|fГВ|j а|б|jП|j}g|_|j абW5QRX|абt||||fdНEdHq|W5|D]$}|jП|j а |бW5QRXРqXdS)anAn iterator over the given futures that yields each as it completes. Args: fs: The sequence of Futures (possibly created by different Executors) to iterate over. timeout: The maximum number of seconds to wait. If None, then there is no limit on the wait time. Returns: An iterator that yields the given Futures as they complete (finished or cancelled). If any given Futures are duplicated, they will be returned once. Raises: TimeoutError: If the entire result iterator could not be generated before the given timeout. Ncss |]}|jttfkr|VqdSrrBrDrrrrGрs zas_completed..)rRrz%d (of %d) futures unfinished)┌time┌ monotonicr/┌lenr7rNr┌listr<rJrPrSrr┌waitr,r┌clear┌reverse) rK┌timeout┌end_timeZ total_futuresrrrMrFZwait_timeoutrrr┌as_completed╚sL r]┌DoneAndNotDoneFuturesz done not_donec Cs t|ГПкtddД|DГГ}t|Г|}|tkrJ|rJt||ГW5QRгS|tkr~|r~tddД|DГГr~t||ГW5QRгSt|Гt|Гkrдt||ГW5QRгSt||Г}W5QRX|jа |б|D]"}|j П|jа|бW5QRXq╚|а |jбt|t|Г|ГS)aWait for the futures in the given sequence to complete. Args: fs: The sequence of Futures (possibly created by different Executors) to wait upon. timeout: The maximum number of seconds to wait. If None, then there is no limit on the wait time. return_when: Indicates when this function should return. The options are: FIRST_COMPLETED - Return when any future finishes or is cancelled. FIRST_EXCEPTION - Return when any future finishes by raising an exception. If no future raises an exception then it is equivalent to ALL_COMPLETED. ALL_COMPLETED - Return when all futures finish or are cancelled. Returns: A named 2-tuple of sets. The first set, named 'done', contains the futures that completed (is finished or cancelled) before the wait completed. The second set, named 'not_done', contains uncompleted futures. css |]}|jttfkr|VqdSrrBrDrrrrG!s zwait..css&|]}|абs|абdk r|VqdSr)r ┌ exceptionrDrrrrG(s )r7r/rr^r┌anyrVrNrrXr<rJrP┌updater)rKr[rL┌doneZnot_donerMrFrrrrXs" rXc@sДeZdZdZddДZddДZddДZdd ДZd dДZdd ДZ ddДZ ddДZddДZdddДZ d ddДZddДZddДZddДZdS)!┌Futurez5Represents the result of an asynchronous computation.cCs,tаб|_t|_d|_d|_g|_g|_dS)z8Initializes the future. 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FT)r<rCrr rr ┌ notify_allrkrrrr┌cancel`sz Future.cancelc Cs,|jП|jttfkW5QRгSQRXdS)z(Return True if the future was cancelled.N)r<rCrr rrrrr sszFuture.cancelledc Cs(|jП|jtkW5QRгSQRXdS)z1Return True if the future is currently executing.N)r<rCrrrrrrxszFuture.runningc Cs.|jП|jtttfkW5QRгSQRXdS)z>Return True of the future was cancelled or finished executing.N)r<rCrr r rrrrrb}szFuture.donecCs$|jrz |jВW5d}Xn|jSdSr)rerdrrrrZ__get_resultВs zFuture.__get_resultc Csn|jП0|jtttfkr2|jа|бW5QRгdSW5QRXz||ГWn tk rhtа d|бYnXdS)a%Attaches a callable that will be called when the future finishes. Args: fn: A callable that will be called with this future as its only argument when the future completes or is cancelled. The callable will always be called by a thread in the same process in which it was added. If the future has already completed or been cancelled then the callable will be called immediately. These callables are called in the order that they were added. Nrg) r<rCrr r rfr#rhrir_)r ┌fnrrr┌add_done_callbackМszFuture.add_done_callbackNc CsдzШ|jПИ|jttfkr tГВn"|jtkrB|абW5QRгWвZS|jа|б|jttfkrdtГВn(|jtkrЖ|абW5QRгWвStГВW5QRXW5d}XdS)aBReturn the result of the call that the future represents. Args: timeout: The number of seconds to wait for the result if the future isn't done. If None, then there is no limit on the wait time. Returns: The result of the call that the future represents. Raises: CancelledError: If the future was cancelled. TimeoutError: If the future didn't finish executing before the given timeout. Exception: If the call raised then that exception will be raised. N) r<rCrr rr ┌_Future__get_resultrXrйr r[rrr┌resultаs z Future.resultc CsМ|jП||jttfkrtГВn|jtkr:|jW5QRгS|jа|б|jttfkr\tГВn"|jtkrx|jW5QRгStГВW5QRXdS)aUReturn the exception raised by the call that the future represents. Args: timeout: The number of seconds to wait for the exception if the future isn't done. If None, then there is no limit on the wait time. 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Raises: TimeoutError: If the entire result iterator could not be generated before the given timeout. Exception: If fn(*args) raises for any values. Ncsg|]}ИjИf|ЮОСqSr)rД)rEr@)rpr rr┌ `sz Executor.map..c 3s\zBИабИr@Иdkr&ИабабVq ИабаИtаббVq W5ИD]}|абqHXdSr)rorZrQrtrTrU)r%)r\rKr[rr┌result_iteratordsz%Executor.map..result_iterator)rTrU┌zip)r rpr[rЕ┌ iterablesrЗr)r\rprKr r[r┌mapGs zExecutor.mapTcCsdS)aЛClean-up the resources associated with the Executor. It is safe to call this method several times. Otherwise, no other methods can be called after this one. Args: wait: If True then shutdown will not return until all running futures have finished executing and the resources used by the executor have been reclaimed. Nr)r rXrrr┌shutdownsszExecutor.shutdowncCs|Srrrrrrr>АszExecutor.__enter__cCs|jddНdS)NT)rXF)rЛ)r ┌exc_typeZexc_valZexc_tbrrrrAГszExecutor.__exit__)T) rrrrrД┌__text_signature__rКrЛr>rArrrrr{+s, r{c@seZdZdZdS)┌BrokenExecutorzR Raised when a executor has become non-functional after a severe failure. NrrrrrrОИsrО)N)'┌ __author__┌collectionsZloggingrrTrrrrrrrr r Z_FUTURE_STATESrlZ getLoggerrirhrrrr┌objectrr)r1r2r7rNrSr]┌ namedtupler^rXrcr{rurОrrrr┌sh√ √ > 1s]