Current File : //opt/alt/python38/lib64/python3.8/multiprocessing/__pycache__/resource_sharer.cpython-38.opt-1.pyc
U
.��c� � @ s� d dl Z d dlZd dlZd dlZd dlZddlmZ ddlmZ ddlm Z dgZ
ej dkrxe
dg7 Z
G d d� de �Z
ne
d
g7 Z
G d d
� d
e �ZG d d
� d
e �Ze� ZejZdS )� N� )�process)� reduction)�util�stopZwin32� DupSocketc @ s e Zd ZdZdd� Zdd� ZdS )r z Picklable wrapper for a socket.c s( |� � � � fdd�}t�|� j�| _d S )Nc s � � |�}| �|� d S �N)�shareZ
send_bytes)�conn�pidr �Znew_sock� �D/opt/alt/python38/lib64/python3.8/multiprocessing/resource_sharer.py�send s
z DupSocket.__init__.<locals>.send)�dup�_resource_sharer�register�close�_id)�selfZsockr r
r r �__init__ s zDupSocket.__init__c
C s6 t �| j�� }|�� }t�|�W 5 Q R � S Q R X dS )z1Get the socket. This should only be called once.N)r �get_connectionr Z
recv_bytes�socketZ fromshare)r r
r r
r
r �detach$ s zDupSocket.detachN��__name__�
__module__� __qualname__�__doc__r r r
r
r
r r s �DupFdc @ s e Zd ZdZdd� Zdd� ZdS )r z-Wrapper for fd which can be used at any time.c s4 t �|�� � fdd�}� fdd�}t�||�| _d S )Nc s t �| � |� d S r )r Z send_handle)r
r �Znew_fdr
r r 1 s z DupFd.__init__.<locals>.sendc s t �� � d S r )�osr r
r r
r r 3 s z DupFd.__init__.<locals>.close)r! r r r r )r �fdr r r
r r r / s
zDupFd.__init__c
C s. t �| j��}t�|�W 5 Q R � S Q R X dS )z-Get the fd. This should only be called once.N)r r r r Z recv_handle)r r
r
r
r r 7 s z DupFd.detachNr r
r
r
r r - s c @ sN e Zd ZdZdd� Zdd� Zedd� �Zdd d
�Zd d � Z d
d� Z
dd� Z dS )�_ResourceSharerz.Manager for resources using background thread.c C s@ d| _ i | _g | _t�� | _d | _d | _d | _t �
| t j � d S )Nr )
�_key�_cache�
_old_locks� threading�Lock�_lock� _listener�_address�_threadr Zregister_after_forkr# �
_afterfork)r r
r
r r ? s
z_ResourceSharer.__init__c
C sZ | j �J | jdkr| �� | jd7 _||f| j| j< | j| jfW 5 Q R � S Q R X dS )z+Register resource, returning an identifier.Nr )r) r+ �_startr$ r% )r r r r
r
r r I s
z_ResourceSharer.registerc C s< ddl m} | \}}||t�� jd�}|�|t�� f� |S )z<Return connection from which to receive identified resource.r ��Client��authkey)�
connectionr0 r �current_processr2 r r! �getpid)Zidentr0 �address�key�cr
r
r r R s
z _ResourceSharer.get_connectionNc C s� ddl m} | j�� | jdk r�|| jt�� jd�}|�d� |�� | j �
|� | j � � rdt �
d� | j�� d| _ d| _d| _| j�� D ]\}\}}|� q�| j�� W 5 Q R X dS )z:Stop the background thread and clear registered resources.r r/ Nr1 z._ResourceSharer thread did not stop when asked)r3 r0 r) r+ r r4 r2 r r r, �joinZis_aliver Z sub_warningr* r% �items�clear)r Ztimeoutr0 r8 r7 r r r
r
r r [ s$
�
z_ResourceSharer.stopc C sj | j �� D ]\}\}}|� q
| j �� | j�| j� t�� | _| jd k rT| j� � d | _d | _
d | _ d S r ) r% r: r; r& �appendr) r' r( r* r r+ r, )r r7 r r r
r
r r- p s
z_ResourceSharer._afterforkc C sX ddl m} t�d� |t�� jd�| _| jj| _ t
j | j d�}d|_
|�� || _d S )Nr )�Listenerz0starting listener and thread for sending handlesr1 )�targetT)r3 r= r �debugr r4 r2 r* r6 r+ r' ZThread�_serveZdaemon�startr, )r r= �tr
r
r r. ~ s
z_ResourceSharer._startc C s� t td�r t�tjt�� � zh| j�� �T}|�� }|d krHW 5 Q R � W q�|\}}| j� |�\}}z|||� W 5 |� X W 5 Q R X W q t
� � s�t j
t �� � Y q X q d S )N�pthread_sigmask)�hasattr�signalrC � SIG_BLOCK�
valid_signalsr* ZacceptZrecvr% �popr Z
is_exiting�sys�
excepthook�exc_info)r r
�msgr7 Zdestination_pidr r r
r
r r@ � s
z_ResourceSharer._serve)N) r r r r r r � staticmethodr r r- r. r@ r
r
r
r r# = s
r# )r! rE r rI r' � r �contextr r �__all__�platform�objectr r r# r r r
r
r
r �<module> s
`
Mini Shell