Your IP : 18.223.239.65
3
\/ � @ s, d dddddgZ ddlZddlZddlZddlZddlZdd lmZ dd
lmZ dd lm Z ydd 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_openz( implementation, therefore, the requiredz+ synchronization primitives needed will notz function, see issue 3770.� c @ s\ e Zd Zej� Zdd� Zedd� �Zdd� Z dd� Z
d d
� Z d d � Z d
d� Z
edd� �ZdS )r c
C s� |d krt jj� }|j� }tjdkp*|dk}xPtd�D ]<}y tj|||| j � |� }| _
W n t k
rn Y q6X P q6W t d��t j
d|j � | j� tjdkr�dd� } t j| | � | j
jd k r�dd lm}
|
| j
j� 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 j� d S )N)�_semlock� _after_fork)�obj� r �3/usr/lib64/python3.6/multiprocessing/synchronize.pyr G s z%SemLock.__init__.<locals>._after_forkr )�registerr )Z exitpriority)r Z_default_contextZ get_contextZget_start_method�sys�platform�range�_multiprocessingr �
_make_namer �FileExistsErrorr �debug�handle�
_make_methodsZregister_after_fork�name�semaphore_trackerr ZFinalize�_cleanup) �self�kind�value�maxvalue�ctxr! Z
unlink_now�i�slr r r r r �__init__2 s.
zSemLock.__init__c C s ddl m} t| � || � d S )Nr )�
unregister)r" r, r
)r! r, r r r r# T s zSemLock._cleanupc C s | j j| _| j j| _d S )N)r �acquire�release)r$ r r r r Z s
zSemLock._make_methodsc C s
| j j� S )N)r � __enter__)r$ r r r r/ ^ s zSemLock.__enter__c G s | j j|� S )N)r �__exit__)r$ �argsr r r r0 a s zSemLock.__exit__c C sD t j| � | j}tjdkr,t j� j|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|� | _tjd|d � | j� 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 j� 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_RandomNameSequencer9 r+ � staticmethodr# r r/ r0 r4 r6 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 j� S )N)r �
_get_value)r$ r r r � get_value� s zSemaphore.get_valuec C s8 y| j j� }W n tk
r& d}Y nX d| jj|f S )N�unknownz<%s(value=%s)>)r rA � Exception� __class__r: )r$ r& r r r �__repr__� s
zSemaphore.__repr__N)r )r: r; r< r+ rB rF r r r r r { s
c @ s e Zd Zddd�Zdd� ZdS )r r c C s t j| t|||d� d S )N)r( )r r+ r? )r$ r& r( r r r r+ � s zBoundedSemaphore.__init__c C s> y| j j� }W n tk
r& d}Y nX d| jj|| j jf S )NrC z<%s(value=%s, maxvalue=%s)>)r rA rD rE r: r' )r$ r& r r r rF � s
zBoundedSemaphore.__repr__N)r )r: r; r< r+ rF r r r r r � s
c @ s e Zd Zdd� Zdd� ZdS )r c C s t j| tdd|d� d S )Nr )r( )r r+ r? )r$ r( r r r r+ � s z
Lock.__init__c C s� yf| j j� r8tj� j}tj� jdkrd|dtj� j 7 }n,| j j� dkrLd}n| j j� dkr`d}nd}W n t k
r~ d}Y nX d | j
j |f S )
N�
MainThread�|r �Noner �SomeOtherThread�SomeOtherProcessrC z<%s(owner=%s)>) r �_is_miner
r7 r! � threading�current_threadrA �_countrD rE r: )r$ r! r r r rF � s
z
Lock.__repr__N)r: r; r< r+ rF r r r r r � s c @ s e Zd Zdd� Zdd� ZdS )r c C s t j| tdd|d� d S )Nr )r( )r r+ �RECURSIVE_MUTEX)r$ r( r r r r+ � s zRLock.__init__c C s� y|| j j� rBtj� j}tj� jdkr6|dtj� j 7 }| j j� }n8| j j� dkrZd \}}n | j j� dkrrd \}}nd
\}}W n t k
r� d\}}Y nX d
| j
j ||f S )NrG rH r rI r rJ �nonzerorK rC z <%s(%s, %s)>)rI r )rJ rQ )rK rQ )rC rC ) r rL r
r7 r! rM rN rO rA rD rE r: )r$ r! �countr r r rF � s
zRLock.__repr__N)r: r; r< r+ rF r r r r r � s c @ sj e Zd Zddd�Zdd� Zdd� Zdd � Zd
d � Zd d
� Zdd� Z ddd�Z
dd� Z dd� Z ddd�Z
dS )r Nc C s> |p
|j � | _|jd�| _|jd�| _|jd�| _| j� 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| j| jfS )N)r r2 rS rT rU rV )r$ r r r r4 � s
zCondition.__getstate__c C s |\| _ | _| _| _| j� d S )N)rS rT rU rV r )r$ r5 r r r r6 � s zCondition.__setstate__c C s
| j j� S )N)rS r/ )r$ r r r r/ � s zCondition.__enter__c G s | j j|� S )N)rS r0 )r$ r1 r r r r0 � s zCondition.__exit__c C s | j j| _| j j| _d S )N)rS r- r. )r$ r r r r � s
zCondition._make_methodsc C sJ y | j jj� | jjj� }W n tk
r4 d}Y nX d| jj| j|f S )NrC z <%s(%s, %s)>)rT r rA rU rD rE r: rS )r$ Z num_waitersr r r rF � s
zCondition.__repr__c C s� | j jj� std��| jj� | j jj� }xt|�D ]}| j j� q4W z| jj d|�S | j
j� xt|�D ]}| j j � qjW X d S )Nz,must acquire() condition before using wait()T) rS r rL �AssertionErrorrT r. rO r rV r- rU )r$ �timeoutrR r) r r r �wait� s
zCondition.waitc C s| | j jj� std��| jjd� s&t�x$| jjd�rJ| jjd�}|s(t�q(W | jjd�rx| jj� | jj� | jjd� d S )Nzlock is not ownedF) rS r rL rX rV r- rU rT r. )r$ �resr r r �notify s
zCondition.notifyc C s� | j jj� std��| jjd� s&t�x$| jjd�rJ| jjd�}|s(t�q(W d}x"| jjd�rr| jj� |d7 }qRW |r�xt |�D ]}| jj� q�W x| jjd�r�q�W d S )Nzlock is not ownedFr r )
rS r rL rX rV r- rU rT r. r )r$ r[ Zsleepersr) r r r �
notify_all s
zCondition.notify_allc C sh |� }|r|S |d k r$t j� | }nd }d }x6|sb|d k rP|t j� }|dkrPP | j|� |� }q.W |S )Nr )�timeZ monotonicrZ )r$ Z predicaterY �resultZendtimeZwaittimer r r �wait_for6 s
zCondition.wait_for)N)N)N)r: r; r< r+ r4 r6 r/ r0 r rF rZ r\ r] r` r r r r r � s
c @ s6 e Zd Zdd� Zdd� Zdd� Zdd� Zd d
d �Zd S )
r c C s |j |j� �| _|jd�| _d S )Nr )r r �_condr �_flag)r$ r( r r r r+ N s zEvent.__init__c C s0 | j � | jjd�r"| jj� dS dS Q R X d S )NFT)ra rb r- r. )r$ r r r �is_setR s
z Event.is_setc C s6 | j �& | jjd� | jj� | j j� W d Q R X d S )NF)ra rb r- r. r] )r$ r r r �setY s
z Event.setc C s" | j � | jjd� W d Q R X d S )NF)ra rb r- )r$ r r r �clear_ s z Event.clearNc C sT | j �D | jjd�r | jj� n | j j|� | jjd�rF| jj� dS dS Q R X d S )NFT)ra rb r- r. rZ )r$ rY r r r rZ c s
z
Event.wait)N)r: r; r< r+ rc rd re rZ r r r r r L 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} ||jd�d �}|j� }| j|||||f� d| _d| _d S )Nr r )�
BufferWrapperr) r )�struct�heaprg Zcalcsizer r6 �_staterO ) r$ Zparties�actionrY r( rh rg �wrapperZcondr r r r+ u s zBarrier.__init__c C s. |\| _ | _| _| _| _| jj� jd�| _d S )Nr) )�_parties�_action�_timeoutra �_wrapperZcreate_memoryview�cast�_array)r$ r5 r r r r6 ~ s zBarrier.__setstate__c C s | j | j| j| j| jfS )N)rm rn ro ra rp )r$ r r r r4 � s zBarrier.__getstate__c C s
| j d S )Nr )rr )r$ r r r rj � s zBarrier._statec C s || j d< d S )Nr )rr )r$ r& r r r rj � s c C s
| j d S )Nr )rr )r$ r r r rO � s zBarrier._countc C s || j d< d S )Nr )rr )r$ r& r r r rO � s )NN)
r: r; r< r+ r6 r4 �propertyrj �setterrO r r r r rf s s
rf zRThis platform lacks a functioning sem_open implementation, therefore, the requiredz}This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will notz�This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.)�__all__rM r r= r r^ � r r
r r r
� ImportError�listr rP r? r@ �objectr r r r r r rf r r r r �<module> s0 Mz'