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queues.cpython-39.pyc
a �DOg�. � @ s� g d �Z ddlZddlZddlZddlZddlZddlZddlZddlZddl m Z m Z ddl Z ddl mZ ddl mZ ejjZddlmZmZmZmZmZ G dd � d e�Ze� ZG d d � d e�Z G d d � d e�Z dS ))�Queue� SimpleQueue� JoinableQueue� N)�Empty�Full� )� connection)�context)�debug�info�Finalize�register_after_fork� is_exitingc @ s� e Zd Zd-dd�Zdd� Zdd� Zdd � Zd.d d �Zd/dd�Zd0dd�Z dd� Z dd� Z dd� Z dd� Z dd � Zd d � Zd d � Zd!d"� Zd#d$� Zed%d&� �Zed'd(� �Zed)d*� �Zed+d,� �ZdS )1r r c C s� |dkrddl m} || _tjdd�\| _| _|�� | _t � � | _ t j dkrTd | _n |�� | _|�|�| _d| _| �� t j dkr�t| tj� d S )Nr r )� SEM_VALUE_MAXF��duplex�win32)� synchronizer �_maxsizer �Pipe�_reader�_writer�Lock�_rlock�os�getpid�_opid�sys�platform�_wlock�BoundedSemaphore�_sem� _ignore_epipe�_resetr r � _after_fork��self�maxsize�ctx� r) �./usr/lib64/python3.9/multiprocessing/queues.py�__init__% s zQueue.__init__c C s. t �| � | j| j| j| j| j| j| j| j fS �N) r �assert_spawningr" r r r r r r! r �r& r) r) r* � __getstate__9 s �zQueue.__getstate__c C s0 |\| _ | _| _| _| _| _| _| _| �� d S r, ) r" r r r r r r! r r# �r& �stater) r) r* � __setstate__> s �zQueue.__setstate__c C s t d� | jdd� d S )NzQueue._after_fork()T)� after_fork)r r# r. r) r) r* r$ C s zQueue._after_forkFc C sj |r| j �� nt�t�� �| _ t�� | _d | _d | _ d| _ d| _ d | _ | j j| _| jj| _| jj| _d S �NF)� _notempty�_at_fork_reinit� threading� Conditionr � collections�deque�_buffer�_thread� _jointhread�_joincancelled�_closed�_closer � send_bytes� _send_bytesr � recv_bytes� _recv_bytes�poll�_poll)r& r3 r) r) r* r# G s z Queue._resetTNc C sz | j rtd| �d���| j�||�s(t�| j�8 | jd u rB| �� | j� |� | j� � W d � n1 sl0 Y d S �NzQueue z is closed) r? � ValueErrorr! �acquirer r5 r< � _start_threadr; �append�notify�r& �obj�block�timeoutr) r) r* �putV s z Queue.putc C s� | j rtd| �d���|r\|d u r\| j� | �� }W d � n1 sF0 Y | j�� n||rlt�� | }| j�||�s~t �zL|r�|t�� }| � |�s�t �n | � � s�t �| �� }| j�� W | j�� n | j�� 0 t � |�S rG ) r? rH r rD r! �release�time� monotonicrI r rF �_ForkingPickler�loads)r& rO rP �res�deadliner) r) r* �getb s* & z Queue.getc C s | j | jj�� S r, )r r! �_semlock� _get_valuer. r) r) r* �qsize| s z Queue.qsizec C s | � � S r, �rF r. r) r) r* �empty� s z Queue.emptyc C s | j j�� S r, )r! rZ �_is_zeror. r) r) r* �full� s z Queue.fullc C s | � d�S r4 )rY r. r) r) r* � get_nowait� s zQueue.get_nowaitc C s | � |d�S r4 )rQ �r& rN r) r) r* � put_nowait� s zQueue.put_nowaitc C s d| _ | j}|r d | _|� d S )NT)r? r@ )r& �closer) r) r* rd � s z Queue.closec C s. t d� | js J d�| ���| jr*| �� d S )NzQueue.join_thread()zQueue {0!r} not closed)r r? �formatr= r. r) r) r* � join_thread� s zQueue.join_threadc C s4 t d� d| _z| j�� W n ty. Y n0 d S )NzQueue.cancel_join_thread()T)r r> r= �cancel�AttributeErrorr. r) r) r* �cancel_join_thread� s zQueue.cancel_join_threadc C s� t d� | j�� tjtj| j| j| j| j | j j | j j | j | j| jf dd�| _d| j_t d� | j�� t d� | js�t| jtjt�| j�gdd�| _t| tj| j| jgd d�| _d S ) NzQueue._start_thread()�QueueFeederThread)�target�args�nameTzdoing self._thread.start()z ... done self._thread.start()���)� exitpriority� )r r; �clearr7 �Threadr �_feedr5 rB r r rd r r" �_on_queue_feeder_errorr! r< �daemon�startr> r �_finalize_join�weakref�refr= �_finalize_closer@ r. r) r) r* rJ � s4 �� � �zQueue._start_threadc C s4 t d� | � }|d ur(|�� t d� nt d� d S )Nzjoining queue threadz... queue thread joinedz ... queue thread already dead)r �join)�twr�threadr) r) r* rw � s zQueue._finalize_joinc C sB t d� |�" | �t� |�� W d � n1 s40 Y d S )Nz telling queue thread to quit)r rK � _sentinelrL )�buffer�notemptyr) r) r* rz � s zQueue._finalize_closec C sr t d� |j} |j} |j} | j} t} tjdkr<|j}|j}nd }z�| � z| sT| � W | � n| � 0 zn| � }|| u r�t d� |� |� W W d S t� |�}|d u r�||� qh|� z||� W |� qh|� 0 qhW n t y� Y n0 W q@ t �yj } zf|�r$t |dd�t jk�r$W Y d }~d S t� �rDtd|� W Y d }~d S |�� |||� W Y d }~q@d }~0 0 q@d S )Nz$starting thread to feed data to piper z%feeder thread got sentinel -- exiting�errnor zerror in queue thread: %s)r rI rR �wait�popleftr~ r r rU �dumps� IndexError� Exception�getattrr� �EPIPEr r )r r� rA � writelock� reader_close� writer_close� ignore_epipe�onerror� queue_sem�nacquire�nrelease�nwait�bpopleft�sentinel�wacquire�wreleaserN �er) r) r* rs � sP z Queue._feedc C s ddl }|�� dS )z� Private API hook called when feeding data in the background thread raises an exception. For overriding by concurrent.futures. r N)� traceback� print_exc)r� rN r� r) r) r* rt s z Queue._on_queue_feeder_error)r )F)TN)TN)�__name__� __module__� __qualname__r+ r/ r2 r$ r# rQ rY r\ r^ r` ra rc rd rf ri rJ � staticmethodrw rz rs rt r) r) r) r* r # s0 ! >r c @ s@ e Zd Zddd�Zdd� Zdd� Zdd d �Zd d � Zdd� Zd S )r r c C s* t j| ||d� |�d�| _|�� | _d S )N)r( r )r r+ � Semaphore�_unfinished_tasksr8 �_condr% r) r) r* r+ ( s zJoinableQueue.__init__c C s t �| �| j| jf S r, )r r/ r� r� r. r) r) r* r/ - s zJoinableQueue.__getstate__c C s, t �| |d d� � |dd � \| _| _d S )N���)r r2 r� r� r0 r) r) r* r2 0 s zJoinableQueue.__setstate__TNc C s� | j rtd| �d���| j�||�s(t�| j�h | j�B | jd u rJ| �� | j � |� | j � � | j� � W d � n1 s~0 Y W d � n1 s�0 Y d S rG )r? rH r! rI r r5 r� r< rJ r; rK r� rR rL rM r) r) r* rQ 4 s zJoinableQueue.putc C sT | j �: | j�d�s td��| jj�� r2| j �� W d � n1 sF0 Y d S )NFz!task_done() called too many times)r� r� rI rH rZ r_ � notify_allr. r) r) r* � task_doneA s zJoinableQueue.task_donec C s@ | j �& | jj�� s | j �� W d � n1 s20 Y d S r, )r� r� rZ r_ r� r. r) r) r* r{ H s zJoinableQueue.join)r )TN) r� r� r� r+ r/ r2 rQ r� r{ r) r) r) r* r & s r c @ sN e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z e e j �Z dS )r c C sH t jdd�\| _| _|�� | _| jj| _tj dkr:d | _ n |�� | _ d S )NFr r ) r r r r r r rE rF r r r )r& r( r) r) r* r+ S s zSimpleQueue.__init__c C s | j �� | j�� d S r, )r rd r r. r) r) r* rd \ s zSimpleQueue.closec C s | � � S r, r] r. r) r) r* r^ ` s zSimpleQueue.emptyc C s t �| � | j| j| j| jfS r, )r r- r r r r r. r) r) r* r/ c s zSimpleQueue.__getstate__c C s" |\| _ | _| _| _| j j| _d S r, )r r r r rE rF r0 r) r) r* r2 g s zSimpleQueue.__setstate__c C s: | j � | j�� }W d � n1 s&0 Y t�|�S r, )r r rC rU rV )r& rW r) r) r* rY k s (zSimpleQueue.getc C sX t �|�}| jd u r"| j�|� n2| j� | j�|� W d � n1 sJ0 Y d S r, )rU r� r r rA rb r) r) r* rQ q s zSimpleQueue.putN)r� r� r� r+ rd r^ r/ r2 rY rQ � classmethod�types� GenericAlias�__class_getitem__r) r) r) r* r Q s r ) �__all__r r r7 r9 rS r� rx r� �queuer r �_multiprocessing� r r � reduction�ForkingPicklerrU �utilr r r r r �objectr r~ r r r) r) r) r* �<module> s& z +