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_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
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. 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
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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
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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
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| 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
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| � 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<
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| 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
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d S( s8 Initializes the future. Should not be called by clients.N( R t ConditionR. R R4 RA t _resultt
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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.
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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
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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
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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.
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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.
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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.
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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 &
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