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� i��Xc @ s� d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d Z d Z d Z d Z d Z d Z d Z d Z d Z d Z e e e e e g Z i d e 6d e 6d e 6d e 6d e 6Z e j d � Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d! � Z e d" � Z e j! d# d$ � Z" e e d% � Z# d& e f d' � � YZ$ d( e f d) � � YZ% d S(* i����Ns" Brian Quinlan (brian@sweetapp.com)t FIRST_COMPLETEDt FIRST_EXCEPTIONt ALL_COMPLETEDt _AS_COMPLETEDt PENDINGt RUNNINGt CANCELLEDt CANCELLED_AND_NOTIFIEDt FINISHEDt pendingt runningt cancelledt finisheds concurrent.futurest Errorc B s e Z d Z RS( s- Base class for all future-related exceptions.( t __name__t __module__t __doc__( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR . s t CancelledErrorc B s e Z d Z RS( s The Future was cancelled.( R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR 2 s t TimeoutErrorc B s e Z d Z RS( s* The operation exceeded the given deadline.( R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR 6 s t _Waiterc B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s; Provides the event that wait() and as_completed() block on.c C s t j � | _ g | _ d S( N( t threadingt Eventt eventt finished_futures( t self( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt __init__< s c C s | j j | � d S( N( R t append( R t future( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt add_result@ s c C s | j j | � d S( N( R R ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt add_exceptionC s c C s | j j | � d S( N( R R ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt add_cancelledF s ( R R R R R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR : s t _AsCompletedWaiterc B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s Used by as_completed().c C s& t t | � j � t j � | _ d S( N( t superR R R t Lockt lock( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR L s c C s7 | j �( t t | � j | � | j j � Wd QXd S( N( R" R R R R t set( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR P s c C s7 | j �( t t | � j | � | j j � Wd QXd S( N( R" R R R R R# ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR U s c C s7 | j �( t t | � j | � | j j � Wd QXd S( N( R" R R R R R# ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR Z s ( R R R R R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR I s t _FirstCompletedWaiterc B s) e Z d Z d � Z d � Z d � Z RS( s* Used by wait(return_when=FIRST_COMPLETED).c C s' t t | � j | � | j j � d S( N( R R$ R R R# ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR b s c C s' t t | � j | � | j j � d S( N( R R$ R R R# ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR f s c C s' t t | � j | � | j j � d S( N( R R$ R R R# ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR j s ( R R R R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR$ _ s t _AllCompletedWaiterc B s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s< Used by wait(return_when=FIRST_EXCEPTION and ALL_COMPLETED).c C s8 | | _ | | _ t j � | _ t t | � j � d S( N( t num_pending_callst stop_on_exceptionR R! R" R R% R ( R R& R' ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR q s c C s< | j �- | j d 8_ | j s2 | j j � n Wd QXd S( Ni ( R" R& R R# ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt _decrement_pending_callsw s c C s$ t t | � j | � | j � d S( N( R R% R R( ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR } s c C s= t t | � j | � | j r/ | j j � n | j � d S( N( R R% R R' R R# R( ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR � s c C s$ t t | � j | � | j � d S( N( R R% R R( ( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR � s ( R R R R R( R R R ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR% n s t _AcquireFuturesc B s) e Z d Z d � Z d � Z d � Z RS( sD A context manager that does an ordered acquire of Future conditions.c C s t | d t �| _ d S( Nt key( t sortedt idt futures( R R- ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR � s c C s% x | j D] } | j j � q Wd S( N( R- t _conditiont acquire( R R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt __enter__� s c G s% x | j D] } | j j � q Wd S( N( R- R. t release( R t argsR ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt __exit__� s ( R R R R R0 R3 ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR) � s c C s� | t k r t � } n� | t k r0 t � } nh t d � | D� � } | t k rg t | d t �} n1 | t k r� t | d t �} n t d | � � x | D] } | j j | � q� W| S( Nc s s$ | ] } | j t t g k Vq d S( N( t _stateR R ( t .0t f( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pys <genexpr>� s R' s Invalid return condition: %r( R R R R$ t sumR R% t TrueR t Falset ValueErrort _waitersR ( t fst return_whent waitert pending_countR6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt _create_and_install_waiters� s c c s� | d k r | t j � } n t | � } t | � �4 t d � | D� � } | | } t | t � } Wd QXz� x | D] } | Vqw Wx� | rJ| d k r� d } nA | t j � } | d k r� t d t | � t | � f � � n | j j | � | j �$ | j } g | _ | j j � Wd QXx | D] } | V| j | � q+Wq� WWd x. | D]& } | j � | j j | � Wd QXqVWXd S( sn An 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. c s s* | ] } | j t t g k r | Vq d S( N( R4 R R ( R5 R6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pys <genexpr>� s Ni s %d (of %d) futures unfinished( t Nonet timeR# R) R@ R R t lenR t waitR" R t cleart removeR. R; ( R< t timeoutt end_timeR R R> R t wait_timeoutR6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt as_completed� s< t DoneAndNotDoneFuturess done not_donec C s, t | � �� t d � | D� � } t | � | } | t k rR | rR t | | � S| t k r� | r� t d � | D� � r� t | | � Sn t | � t | � k r� t | | � St | | � } Wd QX| j j | � x. | D]& } | j � | j j | � Wd QXq� W| j | j � t | t | � | � S( s Wait 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. c s s* | ] } | j t t g k r | Vq d S( N( R4 R R ( R5 R6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pys <genexpr> s c s s4 | ]* } | j � r | j � d k r | Vq d S( N( R t exceptionRA ( R5 R6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pys <genexpr> s N( R) R# R RK R t anyRC R@ R RD R. R; RF t updateR ( R< RG R= t donet not_doneR> R6 ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyRD � s" t Futurec B s� e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d d � Z d d � Z d � Z d � Z d � Z d � Z RS( s5 Represents the result of an asynchronous computation.c C sI t j � | _ t | _ d | _ d | _ d | _ g | _ g | _ d S( s8 Initializes the future. Should not be called by clients.N( R t ConditionR. R R4 RA t _resultt _exceptiont _tracebackR; t _done_callbacks( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR s c C ss xl | j D]a } y | | � Wq t k rA t j d | � q t k rT � q t j d | � q Xq Wd S( Ns! exception calling callback for %r( RV t Exceptiont LOGGERRL t BaseException( R t callback( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt _invoke_callbacks* s c C s� | j �� | j t k r | j rO d t t | � � t | j | j j j f Sd t t | � � t | j | j j j f Sn d t t | � � t | j f SWd QXd S( Ns! <Future at %s state=%s raised %s>s# <Future at %s state=%s returned %s>s <Future at %s state=%s>( R. R4 R RT t hexR, t _STATE_TO_DESCRIPTION_MAPt __class__R RS ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt __repr__A s c C sf | j �M | j t t g k r# t S| j t t g k r< t St | _ | j j � Wd QX| j � t S( s� Cancel the future if possible. Returns True if the future was cancelled, False otherwise. A future cannot be cancelled if it is running or has already completed. N( R. R4 R R R9 R R R8 t notify_allR[ ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt cancelR s c C s' | j � | j t t g k SWd QXd S( s( Return True if the future has cancelled.N( R. R4 R R ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR e s c C s! | j � | j t k SWd QXd S( s1 Return True if the future is currently executing.N( R. R4 R ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR j s c C s* | j � | j t t t g k SWd QXd S( s> Return True of the future was cancelled or finished executing.N( R. R4 R R R ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyRO o s c C s\ | j rQ t | j t j � r- | j j } n t | j � } | | j | j � n | j Sd S( N( RT t isinstancet typest InstanceTypeR^ t typeRU RS ( R t exception_type( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt __get_resultt s c C sJ | j �1 | j t t t g k r6 | j j | � d SWd QX| | � d S( s% 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. N( R. R4 R R R RV R ( R t fn( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt add_done_callback� s c C s� | j �� | j t t g k r+ t � � n | j t k rD | j � S| j j | � | j t t g k ru t � � n" | j t k r� | j � St � � Wd QXd S( sB Return 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. R4 R R R R t _Future__get_resultRD R ( R RG ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt result� s c C s� | j �� | j t t g k r+ t � � n | j t k rJ | j | j f S| j j | � | j t t g k r{ t � � n( | j t k r� | j | j f St � � Wd QXd S( sq Return a tuple of (exception, traceback) 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. Returns: The exception raised by the call that the future represents or None if the call completed without raising. Raises: CancelledError: If the future was cancelled. TimeoutError: If the future didn't finish executing before the given timeout. N( R. R4 R R R R RT RU RD R ( R RG ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt exception_info� s c C s | j | � d S( sU Return 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. Returns: The exception raised by the call that the future represents or None if the call completed without raising. Raises: CancelledError: If the future was cancelled. TimeoutError: If the future didn't finish executing before the given timeout. i ( Rl ( R RG ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyRL � s c C s� | j �� | j t k rG t | _ x | j D] } | j | � q, Wt S| j t k rc t | _ t St j d t | � | j � t d � � Wd QXd S( s� Mark the future as running or process any cancel notifications. Should only be used by Executor implementations and unit tests. If the future has been cancelled (cancel() was called and returned True) then any threads waiting on the future completing (though calls to as_completed() or wait()) are notified and False is returned. If the future was not cancelled then it is put in the running state (future calls to running() will return True) and True is returned. This method should be called by Executor implementations before executing the work associated with this future. If this method returns False then the work should not be executed. Returns: False if the Future was cancelled, True otherwise. Raises: RuntimeError: if this method was already called or if set_result() or set_exception() was called. s! Future %s in unexpected state: %ss Future in unexpected stateN( R. R4 R R R; R R9 R R R8 RX t criticalR, t RuntimeError( R R> ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt set_running_or_notify_cancel� s c C s^ | j �E | | _ t | _ x | j D] } | j | � q& W| j j � Wd QX| j � d S( s� Sets the return value of work associated with the future. Should only be used by Executor implementations and unit tests. N( R. RS R R4 R; R R` R[ ( R Rk R> ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt set_result s c C sg | j �N | | _ | | _ t | _ x | j D] } | j | � q/ W| j j � Wd QX| j � d S( s� Sets the result of the future as being the given exception and traceback. Should only be used by Executor implementations and unit tests. N( R. RT RU R R4 R; R R` R[ ( R RL t tracebackR> ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt set_exception_info s c C s | j | d � d S( s� Sets the result of the future as being the given exception. Should only be used by Executor implementations and unit tests. N( Rr RA ( R RL ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt set_exception* s N( R R R R R[ R_ Ra R R RO Rj Ri RA Rk Rl RL Ro Rp Rr Rs ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyRQ s" ! ( t Executorc B s> e Z d Z d � Z d � Z e d � Z d � Z d � Z RS( sC This is an abstract base class for concrete asynchronous executors.c O s t � � d S( s Submits a callable to be executed with the given arguments. Schedules the callable to be executed as fn(*args, **kwargs) and returns a Future instance representing the execution of the callable. Returns: A Future representing the given call. N( t NotImplementedError( R Rh R2 t kwargs( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt submit4 s c sx | j d � � � d k r. � t j � � n g t j | � D] } | j | | � ^ q> � � � � f d � } | � S( s} Returns a iterator equivalent to map(fn, iter). Args: fn: A callable that will take as many arguments as there are passed iterables. timeout: The maximum number of seconds to wait. If None, then there is no limit on the wait time. Returns: An iterator equivalent to: map(func, *iterables) but the calls may be evaluated out-of-order. Raises: TimeoutError: If the entire result iterator could not be generated before the given timeout. Exception: If fn(*args) raises for any values. RG c 3 sj zG x@ � D]8 } � d k r* | j � Vq | j � t j � � Vq WWd x � D] } | j � qQ WXd S( N( RA Rk RB Ra ( R ( RH R< RG ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt result_iteratorY s N( t getRA RB t itertoolst izipRw ( R Rh t iterablesRv R2 Rx ( ( RH R< RG s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt map? s . c C s d S( s� Clean-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. N( ( R RD ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt shutdowne s c C s | S( N( ( R ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR0 r s c C s | j d t � t S( NRD ( R~ R8 R9 ( R t exc_typet exc_valt exc_tb( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyR3 u s ( R R R Rw R} R8 R~ R0 R3 ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyRt 1 s & (& t collectionst loggingR Rz RB Rc t __author__R R R R R R R R R t _FUTURE_STATESR] t getLoggerRX RW R R R t objectR R R$ R% R) R@ RA RJ t namedtupleRK RD RQ Rt ( ( ( s< /usr/lib/python2.7/site-packages/concurrent/futures/_base.pyt <module> sV ; 1�
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