File: //proc/25634/root/usr/lib/python3.8/multiprocessing/__pycache__/queues.cpython-38.pyc
U
p(��$���� @ s� d ddgZ ddlZddlZddlZddlZddlZddlZddlZddlm Z m
Z
ddl Z ddl m
Z
ddl mZ ejjZdd lmZmZmZmZmZ G d
d � d e�Ze� ZG d d� de�ZG d d� de�Z dS )
�Queue� SimpleQueue�
JoinableQueue� N)�Empty�Full� )�
connection)�context)�debug�info�Finalize�register_after_fork�
is_exitingc @ s� e Zd Zd*dd�Zdd� Zdd� Zdd � Zd+d d
�Zd,dd�Zdd� Z dd� Z
dd� Z dd� Z dd� Z
dd� Zd d � Zd d � Zd d!� Zed"d#� �Zed$d%� �Zed&d'� �Zed(d)� �Zd S )-r 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�Zduplex�win32)Z synchronizer �_maxsizer �Pipe�_reader�_writer�Lock�_rlock�os�getpid�_opid�sys�platform�_wlock�BoundedSemaphore�_sem�
_ignore_epipe� _after_forkr
r ��self�maxsize�ctx� r& �A/tmp/_install_python3/usr/lib/python3.8/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 sb t d� t�t�� �| _t�� | _d | _d | _ d| _
d| _ d | _ | j
j| _| jj| _| jj| _d S )NzQueue._after_fork()F)r
� threading� Conditionr � _notempty� collections�deque�_buffer�_thread� _jointhread�_joincancelled�_closed�_closer �
send_bytes� _send_bytesr �
recv_bytes� _recv_bytes�poll�_pollr+ r& r& r' r! C s
zQueue._after_forkTNc C sf | j rtd| �d���| j�||�s(t�| j�. | jd krB| �� | j� |� | j�
� W 5 Q R X d S �NzQueue z
is closed) r9 �
ValueErrorr �acquirer r2 r6 �
_start_threadr5 �append�notify�r# �obj�block�timeoutr& r& r' �putP s
z Queue.putc C s� | j rtd| �d���|rH|d krH| j� | �� }W 5 Q R X | j�� nr|rXt�� | }| j�||�sjt �zB|r�|t�� }| �
|�s�t �n | �
� s�t �| �� }| j�� W 5 | j�� X t � |�S rA )
r9 rB r r> r �release�time� monotonicrC r r@ �_ForkingPickler�loads)r# rI rJ �resZdeadliner& r& r' �get\ s*
z Queue.getc C s | j | jj�� S r) )r r �_semlock�
_get_valuer+ r& r& r' �qsizev s z Queue.qsizec C s
| � � S r) �r@ r+ r& r& r' �emptyz s z Queue.emptyc C s | j j�� S r) )r rS �_is_zeror+ r& r& r' �full} s z
Queue.fullc C s
| � d�S �NF)rR r+ r& r& r' �
get_nowait� s zQueue.get_nowaitc C s | � |d�S rZ )rK �r# rH r& r& r' �
put_nowait� s zQueue.put_nowaitc C s2 d| _ z| j�� W 5 | j}|r,d | _|� X d S )NT)r9 r: r �close)r# r^ r& r& r' r^ � s z Queue.closec C s. t d� | js td�| ���| jr*| �� d S )NzQueue.join_thread()zQueue {0!r} not closed)r
r9 �AssertionError�formatr7 r+ r& r& r' � join_thread� s zQueue.join_threadc C s6 t d� d| _z| j�� W n tk
r0 Y nX d S )NzQueue.cancel_join_thread()T)r
r8 r7 �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
| jfdd�| _d| j_t d� | j�� t d� | js�t| jtjt�| j�gdd�| _t| tj| j| jgd d�| _d S )
NzQueue._start_thread()ZQueueFeederThread)�target�args�nameTzdoing self._thread.start()z ... done self._thread.start()���)Z exitpriority�
)r
r5 �clearr0 �Threadr �_feedr2 r< r r r^ r �_on_queue_feeder_errorr r6 �daemon�startr8 r �_finalize_join�weakref�refr7 �_finalize_closer: r+ r& r& r' rD � s<
��
�
�zQueue._start_threadc C s4 t d� | � }|d k r(|�� t d� nt d� d S )Nzjoining queue threadz... queue thread joinedz ... queue thread already dead)r
�join)Ztwr�threadr& r& r' rp � s
zQueue._finalize_joinc C s. t d� |� | �t� |�� W 5 Q R X d S )Nz telling queue thread to quit)r
rE � _sentinelrF )�buffer�notemptyr& r& r' rs � s
zQueue._finalize_closec
C sX t d� |j}|j} |j}
| j} t} tjdkr<|j}
|j}nd }
z�|� z| sT|
� W 5 | � X zb| � }|| kr�t d� |� W W d S t� |�}|
d kr�||� qb|
� z ||� W 5 |� X qbW n t
k
r� Y nX W q@ t k
�rP } zV|�rt |dd�t
jk�rW Y �6d S t� �r.td|� W Y �d S |�� |||� W 5 d }~X Y q@X q@d S )Nz$starting thread to feed data to piper z%feeder thread got sentinel -- exiting�errnor zerror in queue thread: %s)r
rC rL �wait�popleftrv r r rO �dumps�
IndexError� Exception�getattrry ZEPIPEr r )rw rx r; Z writelockr^ Z ignore_epipe�onerrorZ queue_semZnacquireZnreleaseZnwaitZbpopleft�sentinelZwacquireZwreleaserH �er& r& r' rl � sN
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� rH r� r& r& r' rm
s z Queue._on_queue_feeder_error)r )TN)TN)�__name__�
__module__� __qualname__r( r, r/ r! rK rR rU rW rY r[ r] r^ ra rd rD � staticmethodrp rs rl rm r& r& r& r' r " s.
=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_tasksr1 �_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 r/ r� r� r- r& r& r' r/ + s zJoinableQueue.__setstate__TNc
C s� | j rtd| �d���| j�||�s(t�| j�J | j�8 | jd krJ| �� | j �
|� | j � � | j�
� W 5 Q R X W 5 Q R X d S rA )r9 rB r rC r r2 r� r6 rD r5 rE r� rL rF rG r& r& r' rK / s
zJoinableQueue.putc C s@ | j �0 | j�d�s td��| jj�� r2| j �� W 5 Q R X d S )NFz!task_done() called too many times)r� r� rC rB rS rX �
notify_allr+ r& r& r' � task_done< s
zJoinableQueue.task_donec C s, | j � | jj�� s | j �� W 5 Q R X d S r) )r� r� rS rX rz r+ r& r& r' rt C s zJoinableQueue.join)r )TN) r� r� r� r( r, r/ rK r� rt r& r& r& r' r ! s
c @ s< e Zd Zdd� Zdd� Zdd� Zdd� Zd d
� Zd d � Zd
S )r c C sH t jdd�\| _| _|�� | _| jj| _tj dkr:d | _
n
|�� | _
d S )NFr r ) r r r r r r r? r@ r r r )r# r% r& r& r' r( N s
zSimpleQueue.__init__c C s
| � � S r) rV r+ r& r& r' rW W s zSimpleQueue.emptyc C s t �| � | j| j| j| jfS r) )r r* r r r r r+ r& r& r' r, Z s
zSimpleQueue.__getstate__c C s" |\| _ | _| _| _| j j| _d S r) )r r r r r? r@ r- r& r& r' r/ ^ s zSimpleQueue.__setstate__c C s& | j � | j�� }W 5 Q R X t�|�S r) )r r r= rO rP )r# rQ r& r& r' rR b s zSimpleQueue.getc C sD t �|�}| jd kr"| j�|� n | j� | j�|� W 5 Q R X d S r) )rO r| r r r; r\ r& r& r' rK h s
zSimpleQueue.putN) r� r� r� r( rW r, r/ rR rK r& r& r& r' r L s ) �__all__r r r0 r3 rM rq ry Zqueuer r Z_multiprocessing� r r Z reductionZForkingPicklerrO �utilr
r r r
r �objectr rv r r r& r& r& r' �<module>
s$
v
+