Current File : //snap/core20/current/lib/python3.8/multiprocessing/__pycache__/process.cpython-38.pyc
U
k�]e�. � @ s8 d dddgZ ddlZddlZddlZddlZddlZddlmZ zej� e�
� �Z W n e k
rl dZ Y nX dd� Z
dd� Zd d� Zd
d � ZG d d � d e�ZG d
d� de�ZG dd� de�ZG dd� de�Zdae� ae�d�ae� a [i Z e ej � � �D ]0\Z!Z"e!dd� dkr�de!kr�de!� �e e" < q�e� Z#dS )� BaseProcess�current_process�active_children�parent_process� N)�WeakSetc C s t S )z@
Return process object representing the current process
)�_current_process� r r �-/usr/lib/python3.8/multiprocessing/process.pyr % s c C s t � tt�S )zN
Return list of process objects corresponding to live child processes
)�_cleanup�list� _childrenr r r r r + s c C s t S )z?
Return process object representing the parent process
)�_parent_processr r r r r 3 s c C s* t t�D ] } | j�� d k rt�| � qd S �N)r r �_popen�poll�discard)�pr r r r
= s r
c @ s� e Zd ZdZdd� Zddddi fdd�dd�Zd d
� Zd d � Zd
d� Zdd� Z dd� Z
d,dd�Z dd� Z dd� Z
edd� �Zejdd� �Zed d � �Zejd d � �Zed d � �Zejd!d � �Zed"d#� �Zed$d%� �ZeZed&d'� �Zd(d)� Zd-d*d+�ZdS ).r z�
Process objects represent activity that is run in a separate process
The class is analogous to `threading.Thread`
c C s t �d S r )�NotImplementedError��selfr r r �_PopenM s zBaseProcess._PopenNr )�daemonc C s� |d kst d��tt�}tj|f | _tj�� | _t�� | _ tj
| _ d | _ d| _
|| _t|�| _t|�| _|p�t| �jd d�dd� | jD �� | _|d k r�|| _t�| � d S )Nz#group argument must be None for nowF�-�:c s s | ]}t |�V qd S r )�str)�.0�ir r r � <genexpr>^ s z'BaseProcess.__init__.<locals>.<genexpr>)�AssertionError�next�_process_counterr � _identity�_config�copy�os�getpid� _parent_pid�name� _parent_namer �_closed�_target�tuple�_args�dict�_kwargs�type�__name__�join�_namer � _dangling�add)r �group�targetr' �args�kwargsr �countr r r �__init__P s"
�zBaseProcess.__init__c C s | j rtd��d S )Nzprocess object is closed)r) �
ValueErrorr r r r �
_check_closedc s zBaseProcess._check_closedc C s | j r| j | j| j� dS )zQ
Method to be run in sub-process; can be overridden in sub-class
N)r* r, r. r r r r �rung s zBaseProcess.runc C sz | � � | jdkstd��| jt�� ks0td��tj�d�rDtd��t � | �
| �| _| jj | _ | `
| `| `t�| � dS )z%
Start child process
Nz cannot start a process twicez:can only start a process object created by current processr z3daemonic processes are not allowed to have children)r< r r r& r$ r% r r" �getr
r �sentinel� _sentinelr* r, r. r r4 r r r r �startn s ��
zBaseProcess.startc C s | � � | j�� dS )zT
Terminate process; sends SIGTERM signal or uses TerminateProcess()
N)r< r � terminater r r r rB � s zBaseProcess.terminatec C s | � � | j�� dS )zT
Terminate process; sends SIGKILL signal or uses TerminateProcess()
N)r< r �killr r r r rC � s zBaseProcess.killc C sR | � � | jt�� ks td��| jdk s0td��| j�|�}|dk rNt�| � dS )z5
Wait until child process terminates
z can only join a child processNz can only join a started process) r< r& r$ r% r r �waitr r )r �timeout�resr r r r1 � s zBaseProcess.joinc C s` | � � | tkrdS | jt�� ks*td��| jdkr8dS | j�� }|dkrNdS t� | � dS dS )z1
Return whether process is alive
Tz can only test a child processNF)
r< r r& r$ r% r r r r r )r �
returncoder r r �is_alive� s
zBaseProcess.is_alivec C sH | j dk r>| j �� dkr td��| j �� d| _ | `t�| � d| _dS )z�
Close the Process object.
This method releases resources held by the Process object. It is
an error to call this method if the child process is still running.
Nz^Cannot close a process while it is still running. You should first call join() or terminate().T)r r r; �closer@ r r r) r r r r rI � s
zBaseProcess.closec C s | j S r )r2 r r r r r' � s zBaseProcess.namec C s t |t�std��|| _d S )Nzname must be a string)�
isinstancer r r2 )r r' r r r r' � s c C s | j �dd�S )z4
Return whether process is a daemon
r F)r" r> r r r r r � s zBaseProcess.daemonc C s | j dkstd��|| jd< dS )z1
Set whether process is a daemon
Nzprocess has already startedr )r r r" )r Zdaemonicr r r r � s c C s
| j d S )N�authkey)r" r r r r rK � s zBaseProcess.authkeyc C s t |�| jd< dS )z2
Set authorization key of process
rK N)�AuthenticationStringr" )r rK r r r rK � s c C s" | � � | jdkr| jS | j�� S )zM
Return exit code of process or `None` if it has yet to stop
N)r< r r r r r r �exitcode� s
zBaseProcess.exitcodec C s* | � � | tkrt�� S | jo$| jjS dS )zU
Return identifier (PID) of process or `None` if it has yet to start
N)r< r r$ r% r �pidr r r r �ident� s zBaseProcess.identc C s4 | � � z| jW S tk
r. td�d�Y nX dS )z{
Return a file descriptor (Unix) or handle (Windows) suitable for
waiting for process termination.
zprocess not startedN)r< r@ �AttributeErrorr; r r r r r? � s
zBaseProcess.sentinelc C s� d }| t krd}nL| jr d}n@| jt�� kr2d}n,| jd krBd}n | j�� }|d k rZd}nd}t| �jd| j g}| jd k r�|�
d| jj � |�
d| j � |�
|� |d k r�t �
||�}|�
d | � | jr�|�
d
� d d �|� S )
NZstarted�closed�unknown�initialZstoppedzname=%rzpid=%sz parent=%sz exitcode=%sr z<%s>� )r r) r& r$ r% r r r/ r0 r2 �appendrN �_exitcode_to_namer> r r1 )r rM Zstatus�infor r r �__repr__ s0
zBaseProcess.__repr__c
C sv ddl m}m} �z>z�| jd k r,|�| j� t �
d�a t � a
|�� t}| at| j| j|�atjrnt�� �� z|j�� |�� W 5 ~X |�d� z| �� d}W 5 |�� X W n� t k
�r } zJ|j s�d}n:t |j d t �r�|j d }n t j!�"t#|j d �d � d}W 5 d }~X Y n2 d}dd l$}t j!�"d| j% � |�&� Y nX W 5 t�� |�d| � |�� X |S )N� )�util�contextz process exiting with exitcode %dz child process calling self.run()r �
z Process %s:
)'� rZ r[ � threadingZ _shutdownrW Z_flush_std_streamsZ
_start_methodZ_force_start_method� itertoolsr9 r �setr Z _close_stdinr �_ParentProcessr( r& r
Z_HAVE_THREAD_NATIVE_IDZ main_threadZ_set_native_idZ_finalizer_registry�clearZ_run_after_forkersZ_exit_functionr= �
SystemExitr7 rJ �int�sys�stderr�writer � tracebackr' � print_exc)r Zparent_sentinelrZ r[ rM Z old_process�erh r r r �
_bootstrap" sR
�
zBaseProcess._bootstrap)N)N)r0 �
__module__� __qualname__�__doc__r r: r< r= rA rB rC r1 rH rI �propertyr' �setterr rK rM rO rN r? rX rk r r r r r G sD �
c @ s e Zd Zdd� ZdS )rL c C s, ddl m} |� d kr td��tt| �ffS )NrY )�get_spawning_popenzJPickling an AuthenticationString object is disallowed for security reasons)r[ rq � TypeErrorrL �bytes)r rq r r r �
__reduce__X s
�z AuthenticationString.__reduce__N)r0 rl rm rt r r r r rL W s rL c @ s6 e Zd Zdd� Zdd� Zedd� �Zd
dd �ZeZdS ) ra c C s4 d| _ || _|| _d | _d | _d| _|| _i | _d S )Nr F)r! r2 �_pidr& r r) r@ r" )r r' rN r? r r r r: h s z_ParentProcess.__init__c C s ddl m} || jgdd� S )Nr �rD �rE �Zmultiprocessing.connectionrD r@ )r rD r r r rH r s z_ParentProcess.is_alivec C s | j S r )ru r r r r rO v s z_ParentProcess.identNc C s ddl m} || jg|d� dS )z6
Wait until parent process terminates
r rv rw Nrx )r rE rD r r r r1 z s z_ParentProcess.join)N) r0 rl rm r: rH ro rO r1 rN r r r r ra f s
ra c @ s e Zd Zdd� Zdd� ZdS )� _MainProcessc C s8 d| _ d| _d | _d | _d| _tt�d��dd�| _d S )Nr Z MainProcessF� z/mp)rK Z semprefix) r! r2 r& r r) rL r$ �urandomr" r r r r r: � s �z_MainProcess.__init__c C s d S r r r r r r rI � s z_MainProcess.closeN)r0 rl rm r: rI r r r r ry � s ry rY � ZSIG�_r )$�__all__r$ re �signalr_ r^ Z _weakrefsetr �path�abspath�getcwdZ ORIGINAL_DIR�OSErrorr r r r
�objectr rs rL ra ry r
r r9 r r` r rV r �__dict__�itemsr' Zsignumr3 r r r r �<module>
s@ �
!
Mini Shell