
Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­
<!DOCTYPE html>
<html>
U
    ¡ê,aù+  ã                   @   s¶  d dl Z d dlZd dlZddlmZ ddlmZ dZG dd„ deƒZG dd	„ d	eƒZ	G d
d„ deƒZ
G dd„ deƒZG dd„ deƒZG dd„ dejƒZG dd„ deƒZejdk�rRG dd„ dejƒZG dd„ dejƒZG dd„ dejƒZG dd„ deƒZG dd„ deƒZG dd „ d eƒZeƒ eƒ eƒ d!œZejd"k�rDeed# ƒZneed$ ƒZn8G d%d„ dejƒZG d&d„ deƒZd#eƒ iZeed# ƒZd'd(„ Ze ¡ Zd)d*„ Zd+d,„ Zd-d.„ ZdS )/é    Né   )Úprocess)Ú	reduction© c                   @   s   e Zd ZdS )ÚProcessErrorN©Ú__name__Ú
__module__Ú__qualname__r   r   r   ú</opt/alt/python38/lib64/python3.8/multiprocessing/context.pyr      s   r   c                   @   s   e Zd ZdS )ÚBufferTooShortNr   r   r   r   r   r      s   r   c                   @   s   e Zd ZdS )ÚTimeoutErrorNr   r   r   r   r   r      s   r   c                   @   s   e Zd ZdS )ÚAuthenticationErrorNr   r   r   r   r   r      s   r   c                   @   sX  e Zd ZeZeZeZeZeej	ƒZ	eej
ƒZ
eejƒZdd„ Zdd„ ZdCdd„Zdd	„ Zd
d„ ZdDdd„ZdEdd„ZdFdd„Zdd„ ZdGdd„ZdHdd„ZdIdd„Zdd„ ZdJd d!„Zd"d#„ Zd$d%„ Zdd&œd'd(„Zdd&œ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?„ ƒZ(e(j)d@d?„ ƒZ(dAdB„ Z*dS )OÚBaseContextc                 C   s"   t  ¡ }|dkrtdƒ‚n|S dS )z(Returns the number of CPUs in the systemNzcannot determine number of cpus)ÚosÚ	cpu_countÚNotImplementedError)ÚselfZnumr   r   r   r   )   s    
zBaseContext.cpu_countc                 C   s&   ddl m} ||  ¡ d�}| ¡  |S )z½Returns 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   )ÚSyncManager©Úctx)Zmanagersr   Úget_contextÚstart)r   r   Úmr   r   r   ÚManager1   s    zBaseContext.ManagerTc                 C   s   ddl m} ||ƒS )z1Returns two connection object connected by a piper   )ÚPipe)Ú
connectionr   )r   Zduplexr   r   r   r   r   <   s    zBaseContext.Pipec                 C   s   ddl m} ||  ¡ d�S )z#Returns a non-recursive lock objectr   )ÚLockr   )Úsynchronizer   r   )r   r   r   r   r   r   A   s    zBaseContext.Lockc                 C   s   ddl m} ||  ¡ d�S )zReturns a recursive lock objectr   )ÚRLockr   )r   r   r   )r   r   r   r   r   r   F   s    zBaseContext.RLockNc                 C   s   ddl m} |||  ¡ d�S )zReturns a condition objectr   )Ú	Conditionr   )r   r    r   )r   Úlockr    r   r   r   r    K   s    zBaseContext.Conditionr   c                 C   s   ddl m} |||  ¡ d�S )zReturns a semaphore objectr   )Ú	Semaphorer   )r   r"   r   )r   Úvaluer"   r   r   r   r"   P   s    zBaseContext.Semaphorec                 C   s   ddl m} |||  ¡ d�S )z"Returns a bounded semaphore objectr   )ÚBoundedSemaphorer   )r   r$   r   )r   r#   r$   r   r   r   r$   U   s    zBaseContext.BoundedSemaphorec                 C   s   ddl m} ||  ¡ d�S )zReturns an event objectr   )ÚEventr   )r   r%   r   )r   r%   r   r   r   r%   Z   s    zBaseContext.Eventc                 C   s    ddl m} |||||  ¡ d�S )zReturns a barrier objectr   )ÚBarrierr   )r   r&   r   )r   ZpartiesÚactionZtimeoutr&   r   r   r   r&   _   s    zBaseContext.Barrierr   c                 C   s   ddl m} |||  ¡ d�S )úReturns a queue objectr   )ÚQueuer   )Úqueuesr)   r   )r   Úmaxsizer)   r   r   r   r)   d   s    zBaseContext.Queuec                 C   s   ddl m} |||  ¡ d�S )r(   r   )ÚJoinableQueuer   )r*   r,   r   )r   r+   r,   r   r   r   r,   i   s    zBaseContext.JoinableQueuec                 C   s   ddl m} ||  ¡ d�S )r(   r   )ÚSimpleQueuer   )r*   r-   r   )r   r-   r   r   r   r-   n   s    zBaseContext.SimpleQueuer   c                 C   s"   ddl m} ||||||  ¡ d�S )zReturns a process pool objectr   )ÚPool)Úcontext)Zpoolr.   r   )r   Z	processesZinitializerZinitargsZmaxtasksperchildr.   r   r   r   r.   s   s    
ÿzBaseContext.Poolc                 G   s   ddl m} ||f|žŽ S )zReturns a shared objectr   )ÚRawValue)Úsharedctypesr0   )r   Útypecode_or_typeÚargsr0   r   r   r   r0   z   s    zBaseContext.RawValuec                 C   s   ddl m} |||ƒS )zReturns a shared arrayr   )ÚRawArray)r1   r4   )r   r2   Úsize_or_initializerr4   r   r   r   r4      s    zBaseContext.RawArray)r!   c                G   s&   ddl m} ||f|ž||  ¡ dœŽS )z$Returns a synchronized shared objectr   )ÚValue©r!   r   )r1   r6   r   )r   r2   r!   r3   r6   r   r   r   r6   „   s    ÿzBaseContext.Valuec                C   s    ddl m} |||||  ¡ d�S )z#Returns a synchronized shared arrayr   )ÚArrayr7   )r1   r8   r   )r   r2   r5   r!   r8   r   r   r   r8   Š   s    ÿzBaseContext.Arrayc                 C   s,   t jdkr(tt ddƒr(ddlm} |ƒ  dS )z‹Check whether this is a fake forked process in a frozen executable.
        If so then run code specified by commandline and exit.
        Úwin32ÚfrozenFr   )Úfreeze_supportN)ÚsysÚplatformÚgetattrÚspawnr;   )r   r;   r   r   r   r;   �   s    zBaseContext.freeze_supportc                 C   s   ddl m} |ƒ S )zZReturn package logger -- if it does not already exist then
        it is created.
        r   )Ú
get_logger)Úutilr@   )r   r@   r   r   r   r@   ˜   s    zBaseContext.get_loggerc                 C   s   ddl m} ||ƒS )z8Turn on logging and add a handler which prints to stderrr   )Úlog_to_stderr)rA   rB   )r   ÚlevelrB   r   r   r   rB   Ÿ   s    zBaseContext.log_to_stderrc                 C   s   ddl m} dS )zVInstall support for sending connections and sockets
        between processes
        r   )r   N)Ú r   )r   r   r   r   r   Úallow_connection_pickling¤   s    z%BaseContext.allow_connection_picklingc                 C   s   ddl m} ||ƒ dS )zÌSets 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   )Úset_executableN)r?   rF   )r   Ú
executablerF   r   r   r   rF   ¬   s    zBaseContext.set_executablec                 C   s   ddl m} ||ƒ dS )zkSet list of module names to try to load in forkserver process.
        This is really just a hint.
        r   )Úset_forkserver_preloadN)Ú
forkserverrH   )r   Zmodule_namesrH   r   r   r   rH   ´   s    z"BaseContext.set_forkserver_preloadc                 C   sH   |d kr| S zt | }W n" tk
r:   td| ƒd ‚Y nX | ¡  |S )Nzcannot find context for %r)Ú_concrete_contextsÚKeyErrorÚ
ValueErrorÚ_check_available)r   Úmethodr   r   r   r   r   »   s    zBaseContext.get_contextFc                 C   s   | j S ©N)Ú_name©r   Z
allow_noner   r   r   Úget_start_methodÅ   s    zBaseContext.get_start_methodc                 C   s   t dƒ‚d S )Nz+cannot set start method of concrete context)rL   ©r   rN   Zforcer   r   r   Úset_start_methodÈ   s    zBaseContext.set_start_methodc                 C   s   t ƒ  d¡S )z_Controls how objects will be reduced to a form that can be
        shared with other processes.r   )ÚglobalsÚget©r   r   r   r   ÚreducerË   s    zBaseContext.reducerc                 C   s   |t ƒ d< d S )Nr   )rU   )r   r   r   r   r   rX   Ñ   s    c                 C   s   d S rO   r   rW   r   r   r   rM   Õ   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   Ústaticmethodr   Zcurrent_processZparent_processZactive_childrenr   r   r   r   r   r    r"   r$   r%   r&   r)   r,   r-   r.   r0   r4   r6   r8   r;   r@   rB   rE   rF   rH   r   rR   rT   ÚpropertyrX   ÚsetterrM   r   r   r   r   r      sR   









  ÿ







r   c                   @   s   e Zd ZdZedd„ ƒZdS )ÚProcessNc                 C   s   t  ¡ j | ¡S rO   )Ú_default_contextr   r\   Ú_Popen)Úprocess_objr   r   r   r^   Þ   s    zProcess._Popen©r   r	   r
   Z_start_methodrY   r^   r   r   r   r   r\   Ü   s   r\   c                       sF   e Zd ZeZdd„ Zd‡ fdd„	Zddd„Zdd	d
„Zdd„ Z‡  Z	S )ÚDefaultContextc                 C   s   || _ d | _d S rO   )r]   Ú_actual_context)r   r/   r   r   r   Ú__init__å   s    zDefaultContext.__init__Nc                    s0   |d kr | j d kr| j| _ | j S tƒ  |¡S d S rO   )rb   r]   Úsuperr   )r   rN   ©Ú	__class__r   r   r   é   s
    
zDefaultContext.get_contextFc                 C   s<   | j d k	r|stdƒ‚|d kr,|r,d | _ d S |  |¡| _ d S )Nzcontext has already been set)rb   ÚRuntimeErrorr   rS   r   r   r   rT   ñ   s    zDefaultContext.set_start_methodc                 C   s"   | j d kr|rd S | j| _ | j jS rO   )rb   r]   rP   rQ   r   r   r   rR   ù   s
    
zDefaultContext.get_start_methodc                 C   sB   t jdkrdgS t jdkr"ddgnddg}tjr:| d¡ |S d S )Nr9   r?   ÚdarwinÚforkrI   )r<   r=   r   ÚHAVE_SEND_HANDLEÚappend)r   Úmethodsr   r   r   Úget_all_start_methods   s    

z$DefaultContext.get_all_start_methods)N)F)F)
r   r	   r
   r\   rc   r   rT   rR   rm   Ú__classcell__r   r   re   r   ra   â   s   

ra   r9   c                   @   s   e Zd ZdZedd„ ƒZdS )ÚForkProcessri   c                 C   s   ddl m} || ƒS ©Nr   )ÚPopen)Z
popen_forkrq   ©r_   rq   r   r   r   r^     s    zForkProcess._PopenNr`   r   r   r   r   ro     s   ro   c                   @   s   e Zd ZdZedd„ ƒZdS )ÚSpawnProcessr?   c                 C   s   ddl m} || ƒS rp   )Zpopen_spawn_posixrq   rr   r   r   r   r^     s    úSpawnProcess._PopenNr`   r   r   r   r   rs     s   rs   c                   @   s   e Zd ZdZedd„ ƒZdS )ÚForkServerProcessrI   c                 C   s   ddl m} || ƒS rp   )Zpopen_forkserverrq   rr   r   r   r   r^      s    zForkServerProcess._PopenNr`   r   r   r   r   ru     s   ru   c                   @   s   e Zd ZdZeZdS )ÚForkContextri   N)r   r	   r
   rP   ro   r\   r   r   r   r   rv   %  s   rv   c                   @   s   e Zd ZdZeZdS ©ÚSpawnContextr?   N©r   r	   r
   rP   rs   r\   r   r   r   r   rx   )  s   rx   c                   @   s   e Zd ZdZeZdd„ ZdS )ÚForkServerContextrI   c                 C   s   t jstdƒ‚d S )Nz%forkserver start method not available)r   rj   rL   rW   r   r   r   rM   0  s    z"ForkServerContext._check_availableN)r   r	   r
   rP   ru   r\   rM   r   r   r   r   rz   -  s   rz   )ri   r?   rI   rh   r?   ri   c                   @   s   e Zd ZdZedd„ ƒZdS )rs   r?   c                 C   s   ddl m} || ƒS rp   )Zpopen_spawn_win32rq   rr   r   r   r   r^   D  s    rt   Nr`   r   r   r   r   rs   B  s   c                   @   s   e Zd ZdZeZdS rw   ry   r   r   r   r   rx   I  s   c                 C   s   t |  t_d S rO   )rJ   r]   rb   )rN   r   r   r   Ú_force_start_methodV  s    r{   c                   C   s   t tdd ƒS )NÚspawning_popen)r>   Ú_tlsr   r   r   r   Úget_spawning_popen_  s    r~   c                 C   s
   | t _d S rO   )r}   r|   )Úpopenr   r   r   Úset_spawning_popenb  s    r€   c                 C   s    t ƒ d krtdt| ƒj ƒ‚d S )NzF%s objects should only be shared between processes through inheritance)r~   rg   Útyper   )Úobjr   r   r   Úassert_spawninge  s    
ÿÿrƒ   ) r   r<   Z	threadingrD   r   r   Ú__all__Ú	Exceptionr   r   r   r   Úobjectr   ZBaseProcessr\   ra   r=   ro   rs   ru   rv   rx   rz   rJ   r]   r{   Zlocalr}   r~   r€   rƒ   r   r   r   r   Ú<module>   sL    ?,ý ÿ