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Editing: pool.cpython-36.opt-2.pyc
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� Zd d � Zd d� Z f i fdd�Z d<dd�Z d=dd�Z d>dd�Z dd� Zd?dd�Zd@d d �Zf i ddfd d �ZdAd d!�ZdBd"d#�Zed$d%� �Zed&d'� �Zed(d)� �Zed*d+� �Zd,d-� Zd.d/� Zd0d1� Zd2d3� Z ed4d5� �Z e d6d7� �Z d8d9� Z d:d;� Z!dS )Cr Tc O s | j j||�S )N)�_ctx�Process)r r r? r r r rE � s z Pool.ProcessNc C sn |pt � | _| j� tj� | _i | _t| _|| _ || _ || _ |d krPt j � pNd}|dk r`td��|d k rzt|� rztd��|| _g | _| j� tjtj| fd�| _d| j_t| j_| jj� tjtj| j| j | j | j| jfd�| _ d| j _t| j _| j j� tjtj | j | j | jfd�| _!d| j!_t| j!_| j!j� t"j#| | j$| j| j%| j | j| j| j | j!| jfdd�| _&d S )Nr z&Number of processes must be at least 1z initializer must be a callable)�targetr T� )r Z exitpriority)'r rD � _setup_queues�queue�Queue� _taskqueue�_cache�RUN�_state�_maxtasksperchild� _initializer� _initargs�os� cpu_count� ValueError�callable� TypeError� _processes�_pool�_repopulate_pool� threadingZThreadr �_handle_workers�_worker_handler�daemon�start� _handle_tasks� _quick_put� _outqueue� _task_handler�_handle_results� _quick_get�_result_handlerr ZFinalize�_terminate_pool�_inqueue� _terminate)r � processesr9 r: Zmaxtasksperchild�contextr r r r � sT z Pool.__init__c C sZ d}xPt tt| j���D ]:}| j| }|jd k rtjd| � |j� d}| j|= qW |S )NFzcleaning up worker %dT)�reversed�range�lenrX �exitcoder r3 r )r Zcleanedr= rC r r r �_join_exited_workers� s zPool._join_exited_workersc C s| xvt | jt| j� �D ]^}| jt| j| j| j| j | j | j fd�}| jj |� |j jdd�|_ d|_|j� tjd� qW d S )N)rF r rE Z PoolWorkerTz added worker)rl rW rm rX rE rC rg ra rP rQ rO �_wrap_exception�append�name�replacer] r^ r r3 )r r= �wr r r rY � s zPool._repopulate_poolc C s | j � r| j� d S )N)ro rY )r r r r �_maintain_pool� s zPool._maintain_poolc C s4 | j j� | _| j j� | _| jjj| _| jjj| _ d S )N) rD Z SimpleQueuerg ra r+ �sendr` r0 �recvrd )r r r r rH � s zPool._setup_queuesc C s | j |||�j� S )N)� apply_asyncr- )r r> r r? r r r �apply� s z Pool.applyc C s | j ||t|�j� S )N)� _map_asyncr r- )r r> �iterable� chunksizer r r r s zPool.mapc C s | j ||t|�j� S )N)rz r r- )r r> r{ r| r r r r s z Pool.starmapc C s | j ||t|||�S )N)rz r )r r> r{ r| �callback�error_callbackr r r � starmap_async s zPool.starmap_asyncc c sn y0d}x&t |�D ]\}}||||fi fV qW W n8 tk rh } z ||d t|fi fV W Y d d }~X nX d S )Nr ���)� enumerater4 r5 )r Z result_jobr> r{ r= �xrA r r r �_guarded_task_generation s z Pool._guarded_task_generationr c C s� | j tkrtd��|dkrFt| j�}| jj| j|j||�|j f� |S t j |||�}t| j�}| jj| j|jt |�|j f� dd� |D �S d S )NzPool not runningr c s s | ]}|D ] }|V q qd S )Nr )�.0�chunk�itemr r r � <genexpr>@ s z Pool.imap.<locals>.<genexpr>) rN rM rT � IMapIteratorrL rK r, r� �_job� _set_lengthr � _get_tasksr )r r> r{ r| r@ � task_batchesr r r �imap' s z Pool.imapc C s� | j tkrtd��|dkrFt| j�}| jj| j|j||�|j f� |S t j |||�}t| j�}| jj| j|jt |�|j f� dd� |D �S d S )NzPool not runningr c s s | ]}|D ] }|V q qd S )Nr )r� r� r� r r r r� [ s z&Pool.imap_unordered.<locals>.<genexpr>) rN rM rT �IMapUnorderedIteratorrL rK r, r� r� r� r r� r )r r> r{ r| r@ r� r r r �imap_unorderedB s zPool.imap_unorderedc C sB | j tkrtd��t| j||�}| jj|jd|||fgd f� |S )NzPool not runningr )rN rM rT � ApplyResultrL rK r, r� )r r> r r? r} r~ r@ r r r rx ] s zPool.apply_asyncc C s | j ||t|||�S )N)rz r )r r> r{ r| r} r~ r r r � map_asynch s zPool.map_asyncc C s� | j tkrtd��t|d�s$t|�}|d krTtt|�t| j�d �\}}|rT|d7 }t|�dkrdd}tj |||�}t | j |t|�||d�} | j j | j| j||�d f� | S )NzPool not running�__len__� r r )r~ )rN rM rT r. r �divmodrm rX r r� � MapResultrL rK r, r� r� ) r r> r{ Zmapperr| r} r~ Zextrar� r@ r r r rz p s& zPool._map_asyncc C sT t j� }x0|jtks$| jr8|jtkr8| j� tjd� q W | j j d � t j d� d S )Ng�������?zworker handler exiting) rZ �current_threadrN rM rL � TERMINATEru �time�sleeprK r, r r3 )�pool�threadr r r r[ � s zPool._handle_workersc C sj t j� }x�t| jd �D ]�\}}d }z�x�|D ]�}|jr@tjd� P y ||� W q* tk r� } zD|d d� \} } y|| j| d| f� W n t k r� Y nX W Y d d } ~ X q*X q*W |r�tjd� |r�|d nd } || d � wP W d d } }} X qW tjd� y:tjd� |j d � tjd� x|D ]} |d � �q&W W n t k �rZ tjd � Y nX tjd � d S ) Nz'task handler found thread._state != RUNr Fzdoing set_length()r ztask handler got sentinelz/task handler sending sentinel to result handlerz(task handler sending sentinel to workersz/task handler got OSError when sending sentinelsztask handler exitingr� ) rZ r� �iterr- rN r r3 r4 �_set�KeyErrorr, r2 ) � taskqueuer, r8 r� �cacher� ZtaskseqZ set_lengthr; rA r< �idx�pr r r r_ � sB zPool._handle_tasksc C s� t j� }x�y |� }W n" ttfk r6 tjd� d S X |jrJtjd� P |d kr^tjd� P |\}}}y|| j||� W n tk r� Y nX d } }}q W x�|o�|jt k�r:y |� }W n" ttfk r� tjd� d S X |d kr�tjd� q�|\}}}y|| j||� W n tk �r* Y nX d } }}q�W t | d��r�tjd� y,x&t d�D ]}| j j � �spP |� �q^W W n ttfk �r� Y nX tjdt|�|j� d S ) Nz.result handler got EOFError/OSError -- exitingz,result handler found thread._state=TERMINATEzresult handler got sentinelz&result handler ignoring extra sentinelr0 z"ensuring that outqueue is not full� z7result handler exiting: len(cache)=%s, thread._state=%s)rZ r� r2 r1 r r3 rN r� r� r� r. rl r0 �pollrm )r8 r- r� r� r; r< r= �objr r r rc � sZ zPool._handle_resultsc c s4 t |�}x&ttj||��}|s"d S | |fV q W d S )N)r� �tupler �islice)r> �it�sizer� r r r r� s zPool._get_tasksc C s t d��d S )Nz:pool objects cannot be passed between processes or pickled)�NotImplementedError)r r r r r" s zPool.__reduce__c C s& t jd� | jtkr"t| _t| j_d S )Nz closing pool)r r3 rN rM �CLOSEr\ )r r r r r/ s z Pool.closec C s$ t jd� t| _t| j_| j� d S )Nzterminating pool)r r3 r� rN r\ rh )r r r r � terminate s zPool.terminatec C sD t jd� | jj� | jj� | jj� x| jD ] }|j� q0W d S )Nz joining pool)r r3 r\ r rb re rX )r r� r r r r s z Pool.joinc C sD t jd� | jj� x*|j� r>| jj� r>| jj� tj d� qW d S )Nz7removing tasks from inqueue until task handler finishedr ) r r3 Z_rlock�acquire�is_aliver0 r� rw r� r� )r7 � task_handlerr� r r r �_help_stuff_finish( s zPool._help_stuff_finishc C s( t jd� t|_t|_t jd� | j||t|�� t|_|jd � t jd� tj� |k r`|j � |r�t |d d�r�t jd� x |D ]} | j d kr�| j � q�W t jd� tj� |k r�|j � t jd� tj� |k r�|j � |o�t |d d��r$t jd � x,|D ]$} | j � r�t jd | j � | j � q�W d S ) Nzfinalizing poolz&helping task handler/workers to finishzjoining worker handlerr r� zterminating workerszjoining task handlerzjoining result handlerzjoining pool workerszcleaning up worker %d)r r3 r� rN r� rm r, rZ r� r r. rn r� r� �pid) �clsr� r7 r8 r� Zworker_handlerr� Zresult_handlerr� r� r r r rf 1 s6 zPool._terminate_poolc C s | S )Nr )r r r r � __enter___ s zPool.__enter__c C s | j � d S )N)r� )r �exc_typeZexc_valZexc_tbr r r �__exit__b s z Pool.__exit__)N)N)NNN)r )r )NNN)NNN)"r r r rp rE r ro rY ru rH ry r r r r� r� r� rx r� rz � staticmethodr[ r_ rc r� r" r/ r� r r� � classmethodrf r� r� r r r r r � sD 8 . < .c @ s@ e Zd Zdd� Zdd� Zdd� Zddd �Zdd d �Zd d � ZdS )r� c C s4 t j� | _tt�| _|| _|| _|| _| || j< d S )N) rZ ZEvent�_event�next� job_counterr� rL � _callback�_error_callback)r r� r} r~ r r r r k s zApplyResult.__init__c C s | j j� S )N)r� Zis_set)r r r r �readys s zApplyResult.readyc C s | j S )N)�_success)r r r r � successfulv s zApplyResult.successfulNc C s | j j|� d S )N)r� �wait)r �timeoutr r r r� z s zApplyResult.waitc C s, | j |� | j� st�| jr"| jS | j�d S )N)r� r� r r� �_value)r r� r r r r- } s zApplyResult.getc C sV |\| _ | _| jr$| j r$| j| j� | jr>| j r>| j| j� | jj� | j| j= d S )N)r� r� r� r� r� �setrL r� )r r= r� r r r r� � s zApplyResult._set)N)N) r r r r r� r� r� r- r� r r r r r� i s r� c @ s e Zd Zdd� Zdd� ZdS )r� c C sf t j| |||d� d| _d g| | _|| _|dkrLd| _| jj� || j= n|| t || � | _d S )N)r~ Tr ) r� r r� r� � _chunksize� _number_leftr� r� r� �bool)r r� r| �lengthr} r~ r r r r � s zMapResult.__init__c C s� | j d8 _ |\}}|rp| jrp|| j|| j |d | j �< | j dkr�| jrZ| j| j� | j| j= | jj� nH| r�| jr�d| _|| _| j dkr�| j r�| j | j� | j| j= | jj� d S )Nr r F) r� r� r� r� r� rL r� r� r� r� )r r= Zsuccess_result�successr@ r r r r� � s" zMapResult._setN)r r r r r� r r r r r� � s r� c @ s: e Zd Zdd� Zdd� Zd dd�ZeZdd � Zd d � ZdS ) r� c C sJ t jt j� �| _tt�| _|| _tj � | _ d| _ d | _ i | _ | || j< d S )Nr )rZ Z ConditionZLock�_condr� r� r� rL � collections�deque�_items�_index�_length� _unsorted)r r� r r r r � s zIMapIterator.__init__c C s | S )Nr )r r r r �__iter__� s zIMapIterator.__iter__Nc C s� | j �~ y| jj� }W nh tk r~ | j| jkr6t�| j j|� y| jj� }W n( tk rx | j| jkrpt�t�Y nX Y nX W d Q R X |\}}|r�|S |�d S )N) r� r� �popleft� IndexErrorr� r� � StopIterationr� r )r r� r� r� r& r r r r� � s" zIMapIterator.nextc C s� | j �� | j|krr| jj|� | jd7 _x8| j| jkrd| jj| j�}| jj|� | jd7 _q.W | j j� n || j|< | j| jkr�| j| j = W d Q R X d S )Nr ) r� r� r� rq r� �pop�notifyr� rL r� )r r= r� r r r r� � s zIMapIterator._setc C s< | j �, || _| j| jkr.| j j� | j| j= W d Q R X d S )N)r� r� r� r� rL r� )r r� r r r r� � s zIMapIterator._set_length)N) r r r r r� r� �__next__r� r� r r r r r� � s r� c @ s e Zd Zdd� ZdS )r� c C sP | j �@ | jj|� | jd7 _| j j� | j| jkrB| j| j= W d Q R X d S )Nr )r� r� rq r� r� r� rL r� )r r= r� r r r r� s zIMapUnorderedIterator._setN)r r r r� r r r r r� � s r� c @ s@ e Zd ZdZedd� �Zddf fdd�Zdd� Zed d � �ZdS ) r Fc O s ddl m} || |�S )Nr )rE )ZdummyrE )r r? rE r r r rE s zThreadPool.ProcessNc C s t j| |||� d S )N)r r )r ri r9 r: r r r r s zThreadPool.__init__c C s, t j� | _t j� | _| jj| _| jj| _d S )N)rI rJ rg ra r, r` r- rd )r r r r rH s zThreadPool._setup_queuesc C s< | j �, | jj� | jjd g| � | j j� W d Q R X d S )N)Z not_emptyrI �clear�extendZ notify_all)r7 r� r� r r r r� s z ThreadPool._help_stuff_finish) r r r rp r� rE r rH r� r r r r r s )"�__all__rZ rI r r� rR r� r r r r r rM r� r� �countr� r r r4 r r r! r$ rC r5 �objectr r� Z AsyncResultr� r� r� r r r r r �<module> s@ * \&)@
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