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Editing: locks.cpython-36.opt-2.pyc
3 \�< � @ s� d ddddgZ ddlZddlmZ dd lmZ dd lmZ dd lmZ G d d � d �ZG dd� d�Z G dd � d e �Z G dd� d�Z G dd� de �Z G dd� de �Z G dd� de �ZdS )�Lock�Event� Condition� Semaphore�BoundedSemaphore� N� )�compat)�events)�futures)� coroutinec @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�_ContextManagerc C s || _ d S )N)�_lock)�self�lock� r �%/usr/lib64/python3.6/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 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 @ sN e Zd Zdd� Zdd� Zedd� �ZejrJdd� Z ed d � �Z ed d � �Z d S )�_ContextManagerMixinc C s t d��d S )Nz9"yield from" should be used as context manager expression)� RuntimeError)r r r r r , s z _ContextManagerMixin.__enter__c G s d S )Nr )r r r r r r 0 s z _ContextManagerMixin.__exit__c c s | j � E d H t| �S )N)�acquirer )r r r r �__iter__5 s z _ContextManagerMixin.__iter__c c s | j � E d H t| �S )N)r r )r r r r � __await__H s z _ContextManagerMixin.__await__c c s | j � E d H d S )N)r )r r r r � __aenter__M s z _ContextManagerMixin.__aenter__c C s | j � d S )N)r )r �exc_type�exc�tbr r r � __aexit__T s z _ContextManagerMixin.__aexit__N) r r r r r r r r ZPY35r r r# r r r r r + s r c sN e Zd Zdd�dd�Z� fdd�Zdd� Zed d � �Zd d � Zd d� Z � Z S )r N)�loopc C s. t j� | _d| _|d k r || _n tj� | _d S )NF)� collections�deque�_waiters�_locked�_loopr �get_event_loop)r r$ r r r r � s z Lock.__init__c sD t � j� }| jrdnd}| jr0dj|t| j��}dj|dd� |�S )N�locked�unlockedz {},waiters:{}z <{} [{}]>r ���)�super�__repr__r( r' �format�len)r �res�extra)� __class__r r r/ � s z Lock.__repr__c C s | j S )N)r( )r r r r r+ � s z Lock.lockedc c s� | j r&tdd� | jD ��r&d| _ dS | jj� }| jj|� y"z|E d H W d | jj|� X W n& tjk r� | j s~| j � � Y nX d| _ dS )Nc s s | ]}|j � 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| _ | j� ntd��d S )NFzLock is not acquired.)r( r> r )r r r r r � s z Lock.releasec C s> yt t| j��}W n tk r& d S X |j� s:|jd� d S )NT)�next�iterr' � StopIteration�done� set_result)r r? r r r r> � s zLock._wake_up_first) r r r r r/ r+ r r r r> � __classcell__r r )r4 r r Y s 6 c sN e Zd Zdd�dd�Z� fdd�Zdd� Zd d � Zd d � Zed d� �Z � Z S )r N)r$ c C s. t j� | _d| _|d k r || _n tj� | _d S )NF)r% r& r' �_valuer) r r* )r r$ r r r r � s zEvent.__init__c sD t � j� }| jrdnd}| jr0dj|t| j��}dj|dd� |�S )N�setZunsetz {},waiters:{}z <{} [{}]>r r- )r. r/ rF r' r0 r1 )r r2 r3 )r4 r r r/ � s zEvent.__repr__c C s | j S )N)rF )r r r r �is_set� s z Event.is_setc C s2 | j s.d| _ x | jD ]}|j� s|jd� qW d S )NT)rF r' rC rD )r r? r r r rG � s z Event.setc C s d| _ d S )NF)rF )r r r r �clear s z Event.clearc c sB | j r dS | jj� }| jj|� z|E d H dS | jj|� X d S )NT)rF r) r: r' r; r< )r r? r r r �wait s z Event.wait) r r r r r/ rH rG rI r rJ rE r r )r4 r r � s c sV e Zd Zddd�dd�Z� fdd�Zedd� �Zed d � �Zdd d �Zdd� Z � Z S )r N)r$ c C sp |d k r|| _ n tj� | _ |d kr0t| j d�}n|j | j k rDtd��|| _|j| _|j| _|j| _t j � | _ d S )N)r$ z"loop argument must agree with lock) r) r r* r � ValueErrorr r+ r r r% r& r' )r r r$ r r r r + s zCondition.__init__c sF t � j� }| j� rdnd}| jr2dj|t| j��}dj|dd� |�S )Nr+ r, z {},waiters:{}z <{} [{}]>r r- )r. r/ r+ r' r0 r1 )r r2 r3 )r4 r r r/ > s zCondition.__repr__c c s� | j � std��| j� z8| jj� }| jj|� z|E d H dS | jj|� X W d d}x4y| j� E 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) r+ r r r) r: r' r; r< r r r= )r r? r5 r r r rJ E s& zCondition.waitc c s( |� }x |s"| j � E d H |� }qW |S )N)rJ )r Z predicate�resultr r r �wait_fork s zCondition.wait_forr c C sL | j � std��d}x2| jD ](}||kr*P |j� s |d7 }|jd� q W d S )Nz!cannot notify on un-acquired lockr r F)r+ r r' rC rD )r �n�idxr? r r r �notifyy s zCondition.notifyc C s | j t| j�� d S )N)rP r1 r' )r r r r � notify_all� s zCondition.notify_all)N)r ) r r r r r/ r rJ rM rP rQ rE r r )r4 r r ! s & c sP e Zd Zddd�dd�Z� fdd�Zdd � Zd d � Zed d � �Zdd� Z � Z S )r r N)r$ c C s> |dk rt d��|| _tj� | _|d k r0|| _n tj� | _d S )Nr z$Semaphore initial value must be >= 0)rK rF r% r& r' r) r r* )r �valuer$ r r r r � s zSemaphore.__init__c sN t � j� }| j� rdn dj| j�}| jr:dj|t| j��}dj|dd� |�S )Nr+ zunlocked,value:{}z {},waiters:{}z <{} [{}]>r r- )r. r/ r+ r0 rF r' r1 )r r2 r3 )r4 r r r/ � s zSemaphore.__repr__c C s0 x*| j r*| j j� }|j� s|jd � d S qW d S )N)r' �popleftrC rD )r Zwaiterr r r � _wake_up_next� s zSemaphore._wake_up_nextc C s | j dkS )Nr )rF )r r r r r+ � s zSemaphore.lockedc c sz xf| j dkrf| jj� }| jj|� y|E d H W q |j� | j dkr\|j� r\| j� � Y qX qW | j d8 _ dS )Nr r T)rF r) r: r' r; Zcancelr5 rT )r r? r r r r � s zSemaphore.acquirec C s | j d7 _ | j� d S )Nr )rF rT )r r r r r � s zSemaphore.release)r ) r r r r r/ rT r+ r r r rE r r )r4 r r � s c s0 e Zd Zddd�� fdd� Z� fdd�Z� ZS ) r r N)r$ c s || _ t� j||d� d S )N)r$ )� _bound_valuer. r )r rR r$ )r4 r r r � s zBoundedSemaphore.__init__c s" | j | jkrtd��t� j� d S )Nz(BoundedSemaphore released too many times)rF rU rK r. r )r )r4 r r r � s zBoundedSemaphore.release)r )r r r r r rE r r )r4 r r � s )�__all__r% � r r r Z coroutinesr r r r r r r r r r r r �<module> s . 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