Edit File: resource_sharer.cpython-37.pyc
B � f� � @ 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 )�new_sock� �D/opt/alt/python37/lib64/python3.7/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 s* t �| j��}|�� }t�|�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 )N)r Z send_handle)r r )�new_fdr r r 1 s z DupFd.__init__.<locals>.sendc s t �� � d S )N)�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�|�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.detachN)r r r r r r 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 sN | j �> | jdkr| �� | jd7 _||f| j| j< | j| jfS 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)� connectionr- r �current_processr. r r �getpid)Zidentr- �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| _x | j�� D ]\}\}}|� q�W | j�� W dQ R X dS )z:Stop the background thread and clear registered resources.r )r- N)r. z._ResourceSharer thread did not stop when asked)r/ r- r' r) r r0 r. r r r* �joinZis_aliver Z sub_warningr( r# �items�clear)r Ztimeoutr- r4 r3 r r r r r r [ s" z_ResourceSharer.stopc C sn x | j �� D ]\}\}}|� q W | j �� | j�| j� t�� | _| jd k rX| j� � d | _d | _ d | _ d S )N) r# r6 r7 r$ �appendr' r% r& r( r r) r* )r r3 r r r r r r+ p s z_ResourceSharer._afterforkc C sj ddl m} | jd ks td��t�d� |t�� jd�| _| jj | _ t j | j d�}d|_|�� || _d S )Nr )�ListenerzAlready have Listenerz0starting listener and thread for sending handles)r. )�targetT)r/ r9 r( �AssertionErrorr �debugr r0 r. r2 r) r% ZThread�_serveZdaemon�startr* )r r9 �tr r r r, ~ s z_ResourceSharer._startc C s� t td�r t�tjtdtj�� x�y\| j�� �H}|�� }|d krBP |\}}| j � |�\}}z|||� W d |� X W d Q R X W q" t � � s�t jt �� � Y q"X q"W d S )N�pthread_sigmaskr )�hasattr�signalr@ � SIG_BLOCK�range�NSIGr( ZacceptZrecvr# �popr Z is_exiting�sys� excepthook�exc_info)r r �msgr3 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 rB r rG r% � r �contextr r �__all__�platform�objectr r r! r r r r r r �<module> s `
Back to File Manager