MOON

File: //usr/lib/mysqlsh/lib/python3.9/multiprocessing/__pycache__/context.cpython-39.pyc
a

��Pf�+�@s�ddlZddlZddlZddlmZddlmZdZGdd�de�ZGdd	�d	e�Z	Gd
d�de�Z
Gdd
�d
e�ZGdd�de�Z
Gdd�dej�ZGdd�de
�Zejdk�rRGdd�dej�ZGdd�dej�ZGdd�dej�ZGdd�de
�ZGdd�de
�ZGdd �d e
�Ze�e�e�d!�Zejd"k�rDeed#�Zneed$�Zn8Gd%d�dej�ZGd&d�de
�Zd#e�iZeed#�Zd'd(�Ze��Zd)d*�Zd+d,�Zd-d.�ZdS)/�N�)�process)�	reduction�c@seZdZdS)�ProcessErrorN��__name__�
__module__�__qualname__rrr�9/usr/lib/mysqlsh/lib/python3.9/multiprocessing/context.pyrsrc@seZdZdS)�BufferTooShortNrrrrrrsrc@seZdZdS)�TimeoutErrorNrrrrrr
sr
c@seZdZdS)�AuthenticationErrorNrrrrrrsrc@sXeZdZeZeZeZeZeej	�Z	eej
�Z
eej�Zdd�Zdd�Z
dCdd�Zdd	�Zd
d�ZdDd
d�ZdEdd�ZdFdd�Zdd�ZdGdd�ZdHdd�ZdIdd�Zdd�ZdJd d!�Zd"d#�Zd$d%�Zdd&�d'd(�Zdd&�d)d*�Zd+d,�Zd-d.�ZdKd/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*dS)O�BaseContextcCs"t��}|durtd��n|SdS)z(Returns the number of CPUs in the systemNzcannot determine number of cpus)�os�	cpu_count�NotImplementedError)�self�numrrrr)s
zBaseContext.cpu_countcCs&ddlm}||��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)rr�mrrr�Manager1szBaseContext.ManagerTcCsddlm}||�S)z1Returns two connection object connected by a piper)�Pipe)�
connectionr)rZduplexrrrrr<szBaseContext.PipecCsddlm}||��d�S)z#Returns a non-recursive lock objectr)�Lockr)�synchronizerr)rrrrrrAszBaseContext.LockcCsddlm}||��d�S)zReturns a recursive lock objectr)�RLockr)rr r)rr rrrr FszBaseContext.RLockNcCsddlm}|||��d�S)zReturns a condition objectr)�	Conditionr)rr!r)r�lockr!rrrr!KszBaseContext.ConditionrcCsddlm}|||��d�S)zReturns a semaphore objectr)�	Semaphorer)rr#r)r�valuer#rrrr#PszBaseContext.SemaphorecCsddlm}|||��d�S)z"Returns a bounded semaphore objectr)�BoundedSemaphorer)rr%r)rr$r%rrrr%UszBaseContext.BoundedSemaphorecCsddlm}||��d�S)zReturns an event objectr)�Eventr)rr&r)rr&rrrr&ZszBaseContext.EventcCs ddlm}|||||��d�S)zReturns a barrier objectr)�Barrierr)rr'r)r�parties�action�timeoutr'rrrr'_szBaseContext.BarrierrcCsddlm}|||��d�S)�Returns a queue objectr)�Queuer)�queuesr,r)r�maxsizer,rrrr,dszBaseContext.QueuecCsddlm}|||��d�S)r+r)�
JoinableQueuer)r-r/r)rr.r/rrrr/iszBaseContext.JoinableQueuecCsddlm}||��d�S)r+r)�SimpleQueuer)r-r0r)rr0rrrr0nszBaseContext.SimpleQueuercCs"ddlm}||||||��d�S)zReturns a process pool objectr)�Pool)�context)�poolr1r)rZ	processesZinitializerZinitargsZmaxtasksperchildr1rrrr1ss
�zBaseContext.PoolcGsddlm}||g|�R�S)zReturns a shared objectr)�RawValue)�sharedctypesr4)r�typecode_or_type�argsr4rrrr4zszBaseContext.RawValuecCsddlm}|||�S)zReturns a shared arrayr)�RawArray)r5r8)rr6�size_or_initializerr8rrrr8szBaseContext.RawArray)r"cGs(ddlm}||g|�R||��d��S)z$Returns a synchronized shared objectr)�Value�r"r)r5r:r)rr6r"r7r:rrrr:�s�zBaseContext.ValuecCs ddlm}|||||��d�S)z#Returns a synchronized shared arrayr)�Arrayr;)r5r<r)rr6r9r"r<rrrr<�s�zBaseContext.ArraycCs,tjdkr(ttdd�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�spawnr?)rr?rrrr?�szBaseContext.freeze_supportcCsddlm}|�S)zZReturn package logger -- if it does not already exist then
        it is created.
        r)�
get_logger)�utilrD)rrDrrrrD�szBaseContext.get_loggercCsddlm}||�S)z8Turn on logging and add a handler which prints to stderrr)�
log_to_stderr)rErF)r�levelrFrrrrF�szBaseContext.log_to_stderrcCsddlm}dS)zVInstall support for sending connections and sockets
        between processes
        r)rN)�r)rrrrr�allow_connection_pickling�sz%BaseContext.allow_connection_picklingcCsddlm}||�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)rCrJ)r�
executablerJrrrrJ�szBaseContext.set_executablecCsddlm}||�dS)zkSet list of module names to try to load in forkserver process.
        This is really just a hint.
        r)�set_forkserver_preloadN)�
forkserverrL)rZmodule_namesrLrrrrL�sz"BaseContext.set_forkserver_preloadcCsF|dur|Szt|}Wn ty8td|�d�Yn0|��|S)Nzcannot find context for %r)�_concrete_contexts�KeyError�
ValueError�_check_available)r�methodrrrrr�szBaseContext.get_contextFcCs|jS�N)�_name�rZ
allow_nonerrr�get_start_method�szBaseContext.get_start_methodcCstd��dS)Nz+cannot set start method of concrete context)rP�rrRZforcerrr�set_start_method�szBaseContext.set_start_methodcCst��d�S)z_Controls how objects will be reduced to a form that can be
        shared with other processes.r)�globals�get�rrrr�reducer�szBaseContext.reducercCs|t�d<dS)Nr)rY)rrrrrr\�scCsdSrSrr[rrrrQ�szBaseContext._check_available)T)N)r)r)NN)r)r)NNrN)N)N)F)F)+rr	r
rrr
r�staticmethodrZcurrent_processZparent_processZactive_childrenrrrrr r!r#r%r&r'r,r/r0r1r4r8r:r<r?rDrFrIrJrLrrVrX�propertyr\�setterrQrrrrrsR









�







rc@seZdZdZedd��ZdS)�ProcessNcCst��j�|�SrS)�_default_contextrr`�_Popen)�process_objrrrrb�szProcess._Popen�rr	r
Z
_start_methodr]rbrrrrr`�sr`csFeZdZeZdd�Zd
�fdd�	Zddd�Zdd	d
�Zdd�Z�Z	S)�DefaultContextcCs||_d|_dSrS)ra�_actual_context)rr2rrr�__init__�szDefaultContext.__init__Ncs0|dur |jdur|j|_|jSt��|�SdSrS)rfra�superr)rrR��	__class__rrr�s

zDefaultContext.get_contextFcCs<|jdur|std��|dur,|r,d|_dS|�|�|_dS)Nzcontext has already been set)rf�RuntimeErrorrrWrrrrX�szDefaultContext.set_start_methodcCs"|jdur|rdS|j|_|jjSrS)rfrarTrUrrrrV�s

zDefaultContext.get_start_methodcCsBtjdkrdgStjdkr"ddgnddg}tjr:|�d�|SdS)Nr=rC�darwin�forkrM)r@rAr�HAVE_SEND_HANDLE�append)r�methodsrrr�get_all_start_methodss

z$DefaultContext.get_all_start_methods)N)F)F)
rr	r
r`rgrrXrVrq�
__classcell__rrrirre�s

rer=c@seZdZdZedd��ZdS)�ForkProcessrmcCsddlm}||�S�Nr)�Popen)Z
popen_forkru�rcrurrrrbszForkProcess._PopenNrdrrrrrssrsc@seZdZdZedd��ZdS)�SpawnProcessrCcCsddlm}||�Srt)Zpopen_spawn_posixrurvrrrrbs�SpawnProcess._PopenNrdrrrrrwsrwc@seZdZdZedd��ZdS)�ForkServerProcessrMcCsddlm}||�Srt)Zpopen_forkserverrurvrrrrb szForkServerProcess._PopenNrdrrrrrysryc@seZdZdZeZdS)�ForkContextrmN)rr	r
rTrsr`rrrrrz%srzc@seZdZdZeZdS��SpawnContextrCN�rr	r
rTrwr`rrrrr|)sr|c@seZdZdZeZdd�ZdS)�ForkServerContextrMcCstjstd��dS)Nz%forkserver start method not available)rrnrPr[rrrrQ0sz"ForkServerContext._check_availableN)rr	r
rTryr`rQrrrrr~-sr~)rmrCrMrlrCrmc@seZdZdZedd��ZdS)rwrCcCsddlm}||�Srt)Zpopen_spawn_win32rurvrrrrbDsrxNrdrrrrrwBsc@seZdZdZeZdSr{r}rrrrr|IscCst|t_dSrS)rNrarf)rRrrr�_force_start_methodVsrcCsttdd�S)N�spawning_popen)rB�_tlsrrrr�get_spawning_popen_sr�cCs
|t_dSrS)r�r�)�popenrrr�set_spawning_popenbsr�cCs t�durtdt|�j��dS)NzF%s objects should only be shared between processes through inheritance)r�rk�typer)�objrrr�assert_spawninges
��r�) rr@�	threadingrHrr�__all__�	Exceptionrrr
r�objectrZBaseProcessr`rerArsrwryrzr|r~rNrar�localr�r�r�r�rrrr�<module>sJ?,��