Edit File: context.cpython-37.pyc
B � f�* � @ s� d dl Z d dlZd dlZddlmZ ddlmZ g ZG dd� de�ZG dd� de�Z G d d � d e�Z G d d � d e�Z G d d� de �Z G dd� dej�ZG dd� de �Zdd� ee�D �e_ejdk�rLG dd� dej�ZG dd� dej�ZG dd� dej�ZG d d � d e �ZG d d � d e �ZG d d!� d!e �Ze� e� e� d"�Zeed# �Zn8G d$d� dej�ZG d%d � d e �Zd&e� iZeed& �Zd'd(� Ze� � Z d)d*� Z d+d,� Z d-d.� Z dS )/� N� )�process)� reductionc @ s e Zd ZdS )� ProcessErrorN)�__name__� __module__� __qualname__� r r �</opt/alt/python37/lib64/python3.7/multiprocessing/context.pyr s r c @ s e Zd ZdS )�BufferTooShortN)r r r r r r r r s r c @ s e Zd ZdS )� TimeoutErrorN)r r r r r r r r s r c @ s e Zd ZdS )�AuthenticationErrorN)r r r r r r r r s r c @ sN e Zd ZeZeZeZeZeej �Z eej �Z dd� Z dd� Z dCdd�Z dd � Zd d � ZdDd d�ZdEdd�ZdFdd�Zdd� ZdGdd�ZdHdd�ZdIdd �Zd d � ZdJd d!�Zd"d#� Zd$d%� Zdd&�d'd(�Zdd&�d)d*�Z d+d,� Z d-d.� Z dKd/d0�Z d1d2� Z d3d4� Z!d5d6� Z"dLd7d8�Z#dMd:d;�Z$dNd<d=�Z%e&d>d?� �Z'e'j(d@d?� �Z'dAdB� Z)d S )O� BaseContextc C s" t �� }|dkrtd��n|S dS )z(Returns the number of CPUs in the systemNz cannot determine number of cpus)�os� cpu_count�NotImplementedError)�selfZnumr r r r ( s zBaseContext.cpu_countc C s& ddl m} || �� d�}|�� |S )z�Returns a manager associated with a running server process The managers methods such as `Lock()`, `Condition()` and `Queue()` can be used to create shared objects. r )� SyncManager)�ctx)Zmanagersr � get_context�start)r r �mr r r �Manager0 s zBaseContext.ManagerTc C s ddl m} ||�S )z1Returns two connection object connected by a piper )�Pipe)� connectionr )r Zduplexr r r r r ; s zBaseContext.Pipec C s ddl m} || �� d�S )z#Returns a non-recursive lock objectr )�Lock)r )� synchronizer r )r r r r r r @ s zBaseContext.Lockc C s ddl m} || �� d�S )z Returns a recursive lock objectr )�RLock)r )r r r )r r r r r r E s zBaseContext.RLockNc C s ddl m} ||| �� d�S )zReturns a condition objectr )� Condition)r )r r r )r �lockr r r r r J s zBaseContext.Conditionr c C s ddl m} ||| �� d�S )zReturns a semaphore objectr )� Semaphore)r )r r r )r �valuer r r r r O s zBaseContext.Semaphorec C s ddl m} ||| �� d�S )z"Returns a bounded semaphore objectr )�BoundedSemaphore)r )r r" r )r r! r" r r r r" T s z BaseContext.BoundedSemaphorec C s ddl m} || �� d�S )zReturns an event objectr )�Event)r )r r# r )r r# r r r r# Y s zBaseContext.Eventc C s ddl m} ||||| �� d�S )zReturns a barrier objectr )�Barrier)r )r r$ r )r Zparties�actionZtimeoutr$ r r r r$ ^ s zBaseContext.Barrierr c C s ddl m} ||| �� d�S )zReturns a queue objectr )�Queue)r )�queuesr& r )r �maxsizer& r r r r& c s zBaseContext.Queuec C s ddl m} ||| �� d�S )zReturns a queue objectr )� JoinableQueue)r )r' r) r )r r( r) r r r r) h s zBaseContext.JoinableQueuec C s ddl m} || �� d�S )zReturns a queue objectr )� SimpleQueue)r )r' r* r )r r* r r r r* m s zBaseContext.SimpleQueuer c C s" ddl m} |||||| �� d�S )z Returns a process pool objectr )�Pool)�context)Zpoolr+ r )r Z processesZ initializerZinitargsZmaxtasksperchildr+ r r r r+ r s zBaseContext.Poolc G s ddl m} ||f|�� S )zReturns a shared objectr )�RawValue)� sharedctypesr- )r �typecode_or_type�argsr- r r r r- y s zBaseContext.RawValuec C s ddl m} |||�S )zReturns a shared arrayr )�RawArray)r. r1 )r r/ �size_or_initializerr1 r r r r1 ~ s zBaseContext.RawArray)r c G s& ddl m} ||f|�|| �� d��S )z$Returns a synchronized shared objectr )�Value)r r )r. r3 r )r r/ r r0 r3 r r r r3 � s zBaseContext.Valuec C s ddl m} ||||| �� d�S )z#Returns a synchronized shared arrayr )�Array)r r )r. r4 r )r r/ r2 r r4 r r r r4 � s zBaseContext.Arrayc C s, t jdkr(tt dd�r(ddlm} |� dS )z�Check whether this is a fake forked process in a frozen executable. If so then run code specified by commandline and exit. �win32�frozenFr )�freeze_supportN)�sys�platform�getattr�spawnr7 )r r7 r r r r7 � s zBaseContext.freeze_supportc C s ddl m} |� S )zZReturn package logger -- if it does not already exist then it is created. r )� get_logger)�utilr< )r r< r r r r< � s zBaseContext.get_loggerc C s ddl m} ||�S )z8Turn on logging and add a handler which prints to stderrr )� log_to_stderr)r= r> )r �levelr> r r r r> � s zBaseContext.log_to_stderrc C s ddl m} dS )zVInstall support for sending connections and sockets between processes r )r N)� r )r r r r r �allow_connection_pickling� s z%BaseContext.allow_connection_picklingc C s ddl m} ||� dS )z�Sets the path to a python.exe or pythonw.exe binary used to run child processes instead of sys.executable when using the 'spawn' start method. Useful for people embedding Python. r )�set_executableN)r; rB )r � executablerB r r r rB � s zBaseContext.set_executablec C s ddl m} ||� dS )zkSet list of module names to try to load in forkserver process. This is really just a hint. r )�set_forkserver_preloadN)� forkserverrD )r Z module_namesrD r r r rD � s z"BaseContext.set_forkserver_preloadc C sH |d kr | S y t | }W n" tk r: td| �d �Y nX |�� |S )Nzcannot find context for %r)�_concrete_contexts�KeyError� ValueError�_check_available)r �methodr r r r r � s zBaseContext.get_contextFc C s | j S )N)�_name)r � allow_noner r r �get_start_method� s z BaseContext.get_start_methodc C s t d��d S )Nz+cannot set start method of concrete context)rH )r rJ �forcer r r �set_start_method� s z BaseContext.set_start_methodc C s t � �d�S )z_Controls how objects will be reduced to a form that can be shared with other processes.r )�globals�get)r r r r �reducer� s zBaseContext.reducerc C s |t � d< d S )Nr )rP )r r r r r rR � s c C s d S )Nr )r r r r rI � s z BaseContext._check_available)T)N)r )r )NN)r )r )NNr N)N)N)F)F)*r r r r r r r � staticmethodr Zcurrent_processZactive_childrenr r r r r r r r" r# r$ r& r) r* r+ r- r1 r3 r4 r7 r< r> rA rB rD r rM rO �propertyrR �setterrI r r r r r sJ r c @ s e Zd ZdZedd� �ZdS )�ProcessNc C s t �� j�| �S )N)�_default_contextr rV �_Popen)� process_objr r r rX � s zProcess._Popen)r r r � _start_methodrS rX r r r r rV � s rV c sF e Zd ZeZdd� Zd � fdd� Zddd�Zdd d �Zd d � Z� Z S )�DefaultContextc C s || _ d | _d S )N)rW �_actual_context)r r, r r r �__init__� s zDefaultContext.__init__Nc s0 |d kr | j d kr| j| _ | j S t� �|�S d S )N)r\ rW �superr )r rJ )� __class__r r r � s zDefaultContext.get_contextFc C s< | j d k r|std��|d kr,|r,d | _ d S | �|�| _ d S )Nz context has already been set)r\ � RuntimeErrorr )r rJ rN r r r rO � s z DefaultContext.set_start_methodc C s" | j d kr|rd S | j| _ | j jS )N)r\ rW rK )r rL r r r rM � s z DefaultContext.get_start_methodc C s, t jdkrdgS tjr dddgS ddgS d S )Nr5 r; �forkrE )r8 r9 r �HAVE_SEND_HANDLE)r r r r �get_all_start_methods� s z$DefaultContext.get_all_start_methods)N)F)F) r r r rV r] r rO rM rc � __classcell__r r )r_ r r[ � s r[ c C s g | ]}|d dkr|�qS )r �_r )�.0�xr r r � <listcomp> s rh r5 c @ s e Zd ZdZedd� �ZdS )� ForkProcessra c C s ddl m} || �S )Nr )�Popen)Z popen_forkrj )rY rj r r r rX s zForkProcess._PopenN)r r r rZ rS rX r r r r ri s ri c @ s e Zd ZdZedd� �ZdS )� SpawnProcessr; c C s ddl m} || �S )Nr )rj )Zpopen_spawn_posixrj )rY rj r r r rX s zSpawnProcess._PopenN)r r r rZ rS rX r r r r rk s rk c @ s e Zd ZdZedd� �ZdS )�ForkServerProcessrE c C s ddl m} || �S )Nr )rj )Zpopen_forkserverrj )rY rj r r r rX s zForkServerProcess._PopenN)r r r rZ rS rX r r r r rl s rl c @ s e Zd ZdZeZdS )� ForkContextra N)r r r rK ri rV r r r r rm % s rm c @ s e Zd ZdZeZdS )� SpawnContextr; N)r r r rK rk rV r r r r rn ) s rn c @ s e Zd ZdZeZdd� ZdS )�ForkServerContextrE c C s t jstd��d S )Nz%forkserver start method not available)r rb rH )r r r r rI 0 s z"ForkServerContext._check_availableN)r r r rK rl rV rI r r r r ro - s ro )ra r; rE ra c @ s e Zd ZdZedd� �ZdS )rk r; c C s ddl m} || �S )Nr )rj )Zpopen_spawn_win32rj )rY rj r r r rX ? s zSpawnProcess._PopenN)r r r rZ rS rX r r r r rk = s c @ s e Zd ZdZeZdS )rn r; N)r r r rK rk rV r r r r rn D s r; c C s t | t_d S )N)rF rW r\ )rJ r r r �_force_start_methodQ s rp c C s t tdd �S )N�spawning_popen)r: �_tlsr r r r �get_spawning_popenZ s rs c C s | t _d S )N)rr rq )�popenr r r �set_spawning_popen] s ru c C s t � d kr tdt| �j ��d S )NzF%s objects should only be shared between processes through inheritance)rs r` �typer )�objr r r �assert_spawning` s rx )!r r8 Z threadingr@ r r �__all__� Exceptionr r r r �objectr Z BaseProcessrV r[ �dirr9 ri rk rl rm rn ro rF rW rp Zlocalrr rs ru rx r r r r �<module> sD >'
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