← Back
Editing: synchronize.cpython-38.pyc
U e5dZ- � @ s, d dddddgZ ddlZddlZddlZddlZddlZdd lmZ dd lmZ dd lm Z zdd lm Z m Z W n e k r� e d ��Y nX e ed��\ZZej jZG dd� de�Z G dd� de �ZG dd� de�ZG dd � d e �ZG dd� de �ZG dd� de�ZG dd� de�ZG dd� dej�ZdS )�Lock�RLock� Semaphore�BoundedSemaphore� Condition�Event� N� )�context)�process)�util)�SemLock� sem_unlinkz�This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.� c @ s\ e Zd Ze�� Zdd� Zedd� �Zdd� Z dd� Z d d � Z d d � Z d d� Z edd� �ZdS )r c C s� |d krt j�� }|�� }tjdkp*|dk}td�D ]>}z t�|||| � � |� }| _ W n t k rl Y q4X q|q4t d��t � d|j � | �� tjdkr�dd� } t �| | � | j jd k r�dd lm} | | j jd � t j| tj| j jfd d � d S ) N�win32�fork�d z cannot find name for semaphorez created semlock with handle %sc S s | j �� d S �N)�_semlock� _after_fork)�obj� r �3/usr/lib64/python3.8/multiprocessing/synchronize.pyr G s z%SemLock.__init__.<locals>._after_forkr )�register� semaphorer )Z exitpriority)r Z_default_contextZ get_contextZget_start_method�sys�platform�range�_multiprocessingr � _make_namer �FileExistsErrorr �debug�handle� _make_methodsZregister_after_fork�name�resource_trackerr ZFinalize�_cleanup) �self�kind�value�maxvalue�ctxr# Z unlink_now�i�slr r r r r �__init__2 s8 � �zSemLock.__init__c C s" ddl m} t| � || d� d S )Nr )� unregisterr )r$ r. r )r# r. r r r r% T s zSemLock._cleanupc C s | j j| _| j j| _d S r )r �acquire�release�r& r r r r" Z s zSemLock._make_methodsc C s | j �� S r )r � __enter__r1 r r r r2 ^ s zSemLock.__enter__c G s | j j|� S r )r �__exit__�r& �argsr r r r3 a s zSemLock.__exit__c C sD t �| � | j}tjdkr,t �� �|j�}n|j}||j|j |j fS )Nr ) r �assert_spawningr r r Zget_spawning_popenZduplicate_for_childr! r' r) r# )r& r, �hr r r � __getstate__d s zSemLock.__getstate__c C s, t jj|� | _t�d|d � | �� d S )Nz recreated blocker with handle %rr )r r Z_rebuildr r r r" �r& �stater r r � __setstate__m s zSemLock.__setstate__c C s dt �� jd ttj�f S )Nz%s-%sZ semprefix)r �current_processZ_config�nextr �_randr r r r r r s �zSemLock._make_nameN)�__name__� __module__� __qualname__�tempfileZ_RandomNameSequencer> r- � staticmethodr% r" r2 r3 r8 r; r r r r r r . s " r c @ s& e Zd Zd dd�Zdd� Zdd� ZdS ) r r c C s t j| t|t|d� d S �N�r* )r r- � SEMAPHORE� SEM_VALUE_MAX�r& r( r* r r r r- } s zSemaphore.__init__c C s | j �� S r )r � _get_valuer1 r r r � get_value� s zSemaphore.get_valuec C s8 z| j �� }W n tk r& d}Y nX d| jj|f S )N�unknownz<%s(value=%s)>)r rI � Exception� __class__r? �r& r( r r r �__repr__� s zSemaphore.__repr__N)r )r? r@ rA r- rJ rO r r r r r { s c @ s e Zd Zddd�Zdd� ZdS )r r c C s t j| t|||d� d S rD �r r- rF rH r r r r- � s zBoundedSemaphore.__init__c C s> z| j �� }W n tk r& d}Y nX d| jj|| j jf S )NrK z<%s(value=%s, maxvalue=%s)>)r rI rL rM r? r) rN r r r rO � s �zBoundedSemaphore.__repr__N)r �r? r@ rA r- rO r r r r r � s c @ s e Zd Zdd� Zdd� ZdS )r c C s t j| tdd|d� d S �Nr rE rP �r& r* r r r r- � s z Lock.__init__c C s� zf| j �� r8t�� j}t�� jdkrd|dt�� j 7 }n,| j �� dkrLd}n| j �� dkr`d}nd}W n t k r~ d}Y nX d | j j |f S ) N� MainThread�|r �Noner �SomeOtherThread�SomeOtherProcessrK z<%s(owner=%s)>) r �_is_miner r< r# � threading�current_threadrI �_countrL rM r? )r& r# r r r rO � s z Lock.__repr__NrQ r r r r r � s c @ s e Zd Zdd� Zdd� ZdS )r c C s t j| tdd|d� d S rR )r r- �RECURSIVE_MUTEXrS r r r r- � s zRLock.__init__c C s� z|| j �� rBt�� j}t�� jdkr6|dt�� j 7 }| j �� }n8| j �� dkrZd\}}n | j �� dkrrd\}}nd\}}W n t k r� d\}}Y nX d | j j ||f S ) NrT rU r )rV r r )rW �nonzero)rX r^ )rK rK � <%s(%s, %s)>) r rY r r< r# rZ r[ r\ rI rL rM r? )r& r# �countr r r rO � s zRLock.__repr__NrQ r r r r r � s c @ sl e Zd Zddd�Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z ddd�Z ddd�Z dd� Z d dd�Z dS ) r Nc C s> |p |� � | _|�d�| _|�d�| _|�d�| _| �� d S �Nr )r �_lockr �_sleeping_count� _woken_count�_wait_semaphorer" )r& �lockr* r r r r- � s zCondition.__init__c C s t �| � | j| j| j| jfS r )r r6 rb rc rd re r1 r r r r8 � s �zCondition.__getstate__c C s |\| _ | _| _| _| �� d S r )rb rc rd re r" r9 r r r r; � s � zCondition.__setstate__c C s | j �� S r )rb r2 r1 r r r r2 � s zCondition.__enter__c G s | j j|� S r )rb r3 r4 r r r r3 � s zCondition.__exit__c C s | j j| _| j j| _d S r )rb r/ r0 r1 r r r r" � s zCondition._make_methodsc C sJ z | j j�� | jj�� }W n tk r4 d}Y nX d| jj| j|f S )NrK r_ )rc r rI rd rL rM r? rb )r& Z num_waitersr r r rO � s � zCondition.__repr__c C s~ | j j�� std��| j�� | j j�� }t|�D ]}| j �� q2z| j � d|�W �S | j�� t|�D ]}| j � � qhX d S )Nz,must acquire() condition before using wait()T) rb r rY �AssertionErrorrc r0 r\ r rd r/ re )r& �timeoutr` r+ r r r �wait� s � zCondition.waitr c C s� | j j�� std��| j�d�r(td��| j�d�rN| j�d�}|s(td��q(d}||k rz| j�d�rz| j�� |d7 }qR|r�t |�D ]}| j�� q�| j�d�r�q�d S )Nzlock is not ownedFz<notify: Should not have been able to acquire _wait_semaphorez>notify: Bug in sleeping_count.acquire- res should not be Falser r ) rb r rY rg re r/ rd rc r0 r )r& �n�resZsleepersr+ r r r �notify s$ �� zCondition.notifyc C s | j tjd� d S )N)rj )rl r �maxsizer1 r r r � notify_all( s zCondition.notify_allc C sd |� }|r|S |d k r$t �� | }nd }d }|s`|d k rN|t �� }|dkrNq`| �|� |� }q,|S ra )�time� monotonicri )r& Z predicaterh �resultZendtimeZwaittimer r r �wait_for+ s zCondition.wait_for)N)N)r )N)r? r@ rA r- r8 r; r2 r3 r" rO ri rl rn rr r r r r r � s c @ s6 e Zd Zdd� Zdd� Zdd� Zdd� Zd d d �Zd S ) r c C s |� |�� �| _|�d�| _d S ra )r r �_condr �_flagrS r r r r- C s zEvent.__init__c C sD | j �4 | j�d�r,| j�� W 5 Q R � dS W 5 Q R � dS Q R X d S �NFT)rs rt r/ r0 r1 r r r �is_setG s z Event.is_setc C s6 | j �& | j�d� | j�� | j �� W 5 Q R X d S �NF)rs rt r/ r0 rn r1 r r r �setN s z Event.setc C s" | j � | j�d� W 5 Q R X d S rw )rs rt r/ r1 r r r �clearT s z Event.clearNc C sh | j �X | j�d�r | j�� n | j �|� | j�d�rP| j�� W 5 Q R � dS W 5 Q R � dS Q R X d S ru )rs rt r/ r0 ri )r& rh r r r ri X s z Event.wait)N)r? r@ rA r- rv rx ry ri r r r r r A s c @ sZ e Zd Zddd�Zdd� Zdd� Zedd � �Zejd d � �Zed d � �Z e jd d � �Z dS )�BarrierNc C sR dd l }ddlm} ||�d�d �}|�� }| �|||||f� d| _d| _d S )Nr r )� BufferWrapperr+ r )�struct�heapr{ Zcalcsizer r; �_stater\ ) r& Zparties�actionrh r* r| r{ �wrapperZcondr r r r- j s zBarrier.__init__c C s. |\| _ | _| _| _| _| j�� �d�| _d S )Nr+ )�_parties�_action�_timeoutrs �_wrapperZcreate_memoryview�cast�_arrayr9 r r r r; s s � zBarrier.__setstate__c C s | j | j| j| j| jfS r )r� r� r� rs r� r1 r r r r8 x s �zBarrier.__getstate__c C s | j d S ra �r� r1 r r r r~ | s zBarrier._statec C s || j d< d S ra r� rN r r r r~ � s c C s | j d S �Nr r� r1 r r r r\ � s zBarrier._countc C s || j d< d S r� r� rN r r r r\ � s )NN) r? r@ rA r- r; r8 �propertyr~ �setterr\ r r r r rz h s rz )�__all__rZ r rB r ro � r r r r r � ImportError�listr r] rF rG �objectr r r r r r rz r r r r �<module> s8 � Mo'
Save File
Cancel