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r r r r r r/ r r! r" r) r r )r' r r+ l s r+ c @ s( e Zd ZdZdd Zdd Zdd ZdS ) _AcquireFutureszDA context manager that does an ordered acquire of Future conditions.c C s t |td| _d S )N)key)sortedidfutures)r r4 r r r r s z_AcquireFutures.__init__c C s x| j D ]}|jj qW d S )N)r4
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j W dQ R X |j t||| |fdE dH q~W W dx,| D ]$}|j |jj| W dQ R X q W X dS )an An iterator over the given futures that yields each as it completes.
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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.
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before the given timeout.
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)r< r= r r r r> s z as_completed.<locals>.<genexpr>)rI r z %d (of %d) futures unfinished)time monotonicr( lenr0 rE r listrJ r r waitr& r clearreverser5 rA rG ) rB timeoutend_timeZ
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|j t|t| | S )a Wait for the futures in the given sequence to complete.
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return_when: Indicates when this function should return. The options
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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.
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C sR | j : | jttgkrdS | jttgkr,dS t| _| j j W dQ R X | j dS )zCancel the future if possible.
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)r r r r rY y s z Future.donec C s | j r| j n| jS d S )N)r\ r[ )r r r r Z __get_result~ s zFuture.__get_resultc C s> | j & | jtttgkr(| jj| dS W dQ R X || dS )a% Attaches a callable that will be called when the future finishes.
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argument when the future completes or is cancelled. The callable
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it was added. If the future has already completed or been
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C st | j d | jttgkr t n| jtkr.| jS | j j| | jttgkrPt n| jtkr`| jS t W dQ R X dS )aU Return the exception raised by the call that the future represents.
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future isn't done. If None, then there is no limit on the wait
time.
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C sN | j 6 || _t| _x| jD ]}|j| q W | j j W dQ R X | j dS )zSets the result of the future as being the given exception.
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N)NotImplementedError)r rf r9 kwargsr r r submit s zExecutor.submitNr. )rR chunksizec sB dk rt j fddt| D fdd}| S )a} Returns an iterator equivalent to map(fn, iter).
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chunksize: The size of the chunks the iterable will be broken into
before being passed to a child process. This argument is only
used by ProcessPoolExecutor; it is ignored by
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Returns:
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