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Editing: locks.cpython-37.opt-2.pyc
B YI~d)> � @ s� d Z ddlZddlZddlmZ ddlmZ ddlmZ G dd� d�ZG d d � d �Z G d d � d e �Z G d d� d�Z G dd� de �Z G dd� de �Z G dd� de �ZdS ))�Lock�Event� Condition� Semaphore�BoundedSemaphore� N� )�events)�futures)� coroutinec @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�_ContextManagerc C s || _ d S )N)�_lock)�self�lock� r �2/opt/alt/python37/lib64/python3.7/asyncio/locks.py�__init__ s z_ContextManager.__init__c C s d S )Nr )r r r r � __enter__# s z_ContextManager.__enter__c G s z| j �� W d d | _ X d S )N)r �release)r �argsr r r �__exit__( s z_ContextManager.__exit__N)�__name__� __module__� __qualname__r r r r r r r r s r c @ sH e Zd Zdd� Zdd� Zedd� �Zdd� Zd d � Zd d � Z d d� Z dS )�_ContextManagerMixinc C s t d��d S )Nz9"yield from" should be used as context manager expression)� RuntimeError)r r r r r 0 s z _ContextManagerMixin.__enter__c G s d S )Nr )r r r r r r 4 s z _ContextManagerMixin.__exit__c c s& t jdtdd� | �� E d H t| �S )NzD'with (yield from lock)' is deprecated use 'async with lock' instead� )� stacklevel)�warnings�warn�DeprecationWarning�acquirer )r r r r �__iter__9 s z _ContextManagerMixin.__iter__c � s | � � I d H t| �S )N)r r )r r r r Z __acquire_ctxP s z"_ContextManagerMixin.__acquire_ctxc C s t jdtdd� | �� �� S )Nz='with await lock' is deprecated use 'async with lock' insteadr )r )r r r �!_ContextManagerMixin__acquire_ctx� __await__)r r r r r# T s z _ContextManagerMixin.__await__c � s | � � I d H d S )N)r )r r r r � __aenter__[ s z _ContextManagerMixin.__aenter__c � s | � � d S )N)r )r �exc_type�exc�tbr r r � __aexit__a s z _ContextManagerMixin.__aexit__N) r r r r r r r! r" r# r$ r( r r r r r / s r c sJ e Zd Zdd�dd�Z� fdd�Zdd� Zd d � Zd d � Zd d� Z� Z S )r N)�loopc C s. t �� | _d| _|d k r || _n t�� | _d S )NF)� collections�deque�_waiters�_locked�_loopr �get_event_loop)r r) r r r r � s z Lock.__init__c sL t � �� }| jrdnd}| jr2|� dt| j�� �}d|dd� � d|� d�S ) N�locked�unlockedz , waiters:�<r ���z [z]>)�super�__repr__r- r, �len)r �res�extra)� __class__r r r5 � s z Lock.__repr__c C s | j S )N)r- )r r r r r0 � s z Lock.lockedc � s� | j s$tdd� | jD ��r$d| _ dS | j�� }| j�|� y"z|I d H W d | j�|� X W n& tjk r� | j s|| � � � Y nX d| _ dS )Nc s s | ]}|� � V qd S )N)� cancelled)�.0�wr r r � <genexpr>� s z Lock.acquire.<locals>.<genexpr>T) r- �allr, r. � create_future�append�remover �CancelledError�_wake_up_first)r �futr r r r � s z Lock.acquirec C s" | j rd| _ | �� ntd��d S )NFzLock is not acquired.)r- rC r )r r r r r � s z Lock.releasec C s> yt t| j��}W n tk r& d S X |�� s:|�d� d S )NT)�next�iterr, � StopIteration�done� set_result)r rD r r r rC � s zLock._wake_up_first) r r r r r5 r0 r r rC � __classcell__r r )r9 r r e s 6 r c sJ e Zd Zdd�dd�Z� fdd�Zdd� Zd d � Zd d � Zd d� Z� Z S )r N)r) c C s. t �� | _d| _|d k r || _n t�� | _d S )NF)r* r+ r, �_valuer. r r/ )r r) r r r r � s zEvent.__init__c sL t � �� }| jrdnd}| jr2|� dt| j�� �}d|dd� � d|� d�S ) N�setZunsetz , waiters:r2 r r3 z [z]>)r4 r5 rK r, r6 )r r7 r8 )r9 r r r5 � s zEvent.__repr__c C s | j S )N)rK )r r r r �is_set s z Event.is_setc C s2 | j s.d| _ x | jD ]}|�� s|�d� qW d S )NT)rK r, rH rI )r rD r r r rL s z Event.setc C s d| _ d S )NF)rK )r r r r �clear s z Event.clearc � sB | j r dS | j�� }| j�|� z|I d H dS | j�|� X d S )NT)rK r. r? r, r@ rA )r rD r r r �wait s z Event.wait) r r r r r5 rM rL rN rO rJ r r )r9 r r � s r c sN e Zd Zddd�dd�Z� fdd�Zdd� Zd d � Zdd d �Zdd� Z� Z S )r N)r) c C sp |d k r|| _ n t�� | _ |d kr0t| j d�}n|j | j k rDtd��|| _|j| _|j| _|j| _t � � | _ d S )N)r) z"loop argument must agree with lock) r. r r/ r � ValueErrorr r0 r r r* r+ r, )r r r) r r r r 5 s zCondition.__init__c sN t � �� }| �� rdnd}| jr4|� dt| j�� �}d|dd� � d|� d�S ) Nr0 r1 z , waiters:r2 r r3 z [z]>)r4 r5 r0 r, r6 )r r7 r8 )r9 r r r5 H s zCondition.__repr__c � s� | � � std��| �� z8| j�� }| j�|� z|I d H dS | j�|� X W d d}x4y| �� I d H P W qX t j k r� d}Y qXX qXW |r�t j �X d S )Nz cannot wait on un-acquired lockTF) r0 r r r. r? r, r@ rA r r rB )r rD r: r r r rO O s& zCondition.waitc � s( |� }x |s"| � � I d H |� }qW |S )N)rO )r Z predicate�resultr r r �wait_fort s zCondition.wait_forr c C sL | � � std��d}x2| jD ](}||kr*P |�� s |d7 }|�d� q W d S )Nz!cannot notify on un-acquired lockr r F)r0 r r, rH rI )r �n�idxrD r r r �notify� s zCondition.notifyc C s | � t| j�� d S )N)rU r6 r, )r r r r � notify_all� s zCondition.notify_all)N)r ) r r r r r5 rO rR rU rV rJ r r )r9 r r + s % r c sL e Zd Zddd�dd�Z� fdd�Zdd � Zd d � Zd d � Zdd� Z� Z S )r r N)r) c C s> |dk rt d��|| _t�� | _|d k r0|| _n t�� | _d S )Nr z$Semaphore initial value must be >= 0)rP rK r* r+ r, r. r r/ )r �valuer) r r r r � s zSemaphore.__init__c sV t � �� }| �� rdn d| j� �}| jr<|� dt| j�� �}d|dd� � d|� d�S ) Nr0 zunlocked, value:z , waiters:r2 r r3 z [z]>)r4 r5 r0 rK r, r6 )r r7 r8 )r9 r r r5 � s zSemaphore.__repr__c C s0 x*| j r*| j �� }|�� s|�d � d S qW d S )N)r, �popleftrH rI )r Zwaiterr r r � _wake_up_next� s zSemaphore._wake_up_nextc C s | j dkS )Nr )rK )r r r r r0 � s zSemaphore.lockedc � sx xd| j dkrd| j�� }| j�|� y|I d H W q |�� | j dkrZ|�� sZ| �� � Y qX qW | j d8 _ dS )Nr r T)rK r. r? r, r@ Zcancelr: rY )r rD r r r r � s zSemaphore.acquirec C s | j d7 _ | �� d S )Nr )rK rY )r r r r r � s zSemaphore.release)r ) r r r r r5 rY r0 r r rJ r r )r9 r r � s r c s0 e Zd Zddd�� fdd� Z� fdd�Z� ZS ) r r N)r) c s || _ t� j||d� d S )N)r) )� _bound_valuer4 r )r rW r) )r9 r r r � s zBoundedSemaphore.__init__c s" | j | jkrtd��t� �� d S )Nz(BoundedSemaphore released too many times)rK rZ rP r4 r )r )r9 r r r � s zBoundedSemaphore.release)r )r r r r r rJ r r )r9 r r � s r )�__all__r* r � r r Z coroutinesr r r r r r r r r r r r �<module> s "6 AwK
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