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process.cpython-37.pyc
B ���E�"� @ s d ddgZ ddlZddlZddlZddlZddlZddlmZ yej� e� � �Z W n e k rj dZ Y nX dd� Z dd� Zdd � ZG d d � d e�ZG d d � d e�ZG d d� de�Ze� ae�d�ae� a[i Zx<eej � � �D ]*\Z Z e dd� dkr�de kr�e ee < q�W e� Z dS )� BaseProcess�current_process�active_children� N)�WeakSetc C s t S )z@ Return process object representing the current process )�_current_process� r r �</opt/alt/python37/lib64/python3.7/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. x(t t�D ] } | j�� d k r t�| � q W d S )N)r r �_popen�poll�discard)�pr r r r 5 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$d%� �ZeZed&d'� �Zd(d)� Zd*d+� ZdS )-r z� Process objects represent activity that is run in a separate process The class is analogous to `threading.Thread` c C s t �d S )N)�NotImplementedError)�selfr r r �_PopenE s zBaseProcess._PopenNr )�daemonc C s� |d kst d��tt�}tj|f | _tj�� | _t�� | _ d | _ d| _ || _ t |�| _t|�| _|p�t| �jd d�dd� | jD �� | _|d k r�|| _t�| � d S )Nz#group argument must be None for nowF�-�:c s s | ]}t |�V qd S )N)�str)�.0�ir r r � <genexpr>U s z'BaseProcess.__init__.<locals>.<genexpr>)�AssertionError�next�_process_counterr � _identity�_config�copy�os�getpid� _parent_pidr �_closed�_target�tuple�_args�dict�_kwargs�type�__name__�join�_namer � _dangling�add)r �group�target�name�args�kwargsr �countr r r �__init__H s zBaseProcess.__init__c C s | j rtd��d S )Nzprocess object is closed)r# � ValueError)r r r r � _check_closedZ s zBaseProcess._check_closedc C s | j r| j | j| j� dS )zQ Method to be run in sub-process; can be overridden in sub-class N)r$ r& r( )r r r r �run^ 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)r7 r r r" r r! r r �getr r �sentinel� _sentinelr$ r& r( r r. )r r r r �starte s zBaseProcess.startc C s | � � | j�� dS )zT Terminate process; sends SIGTERM signal or uses TerminateProcess() N)r7 r � terminate)r r r r r= w s zBaseProcess.terminatec C s | � � | j�� dS )zT Terminate process; sends SIGKILL signal or uses TerminateProcess() N)r7 r �kill)r r r r r> ~ 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) r7 r" r r! r r �waitr r )r ZtimeoutZresr r r r+ � 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) r7 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 r6 �closer; r r r# )r r r r rB � s zBaseProcess.closec C s | j S )N)r, )r r r r r1 � s zBaseProcess.namec C s t |t�std��|| _d S )Nzname must be a string)� isinstancer r r, )r r1 r r r r1 � s c C s | j �dd�S )z4 Return whether process is a daemon r F)r r9 )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 rD � s zBaseProcess.authkeyc C s t |�| jd< dS )z2 Set authorization key of process rD N)�AuthenticationStringr )r rD r r r rD � s c C s" | � � | jdkr| jS | j�� S )zM Return exit code of process or `None` if it has yet to stop N)r7 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)r7 r r r! r �pid)r r r r �ident� s zBaseProcess.identc C s2 | � � y| jS 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)r7 r; �AttributeErrorr6 )r r r r r: � s zBaseProcess.sentinelc C s� | t krd}nJ| jrd}n>| jt�� kr.d}n*| jd kr>d}n| j�� d k rT| j}nd}t|�t kr�|dkrrd}ndt � ||� }dt| �j | j || jr�d p�d f S ) NZstarted�closed�unknown�initialr Zstoppedz stopped[%s]z<%s(%s, %s%s)>z daemon� )r r# r" r r! r r rF r) �int�_exitcode_to_namer9 r* r, r )r Zstatusr r r �__repr__� s" zBaseProcess.__repr__c C sR ddl m}m} �zy|| jd k r,|�| j� t�d�at� a |� � t }| a z|j � � |�� W d ~X |�d� z| �� d}W d |�� X W n� tk r� } zJ|js�d}n:t|jd t�r�|jd }n tj�t|jd �d � d}W d d }~X Y n2 d}dd l}tj�d| j � |� � Y nX W d t � � |�d| � |� � X |S )N� )�util�contextz child process calling self.run()r � z Process %s: z process exiting with exitcode %d) rM rR rS Z _start_methodZ_force_start_method� itertoolsr4 r �setr Z _close_stdinr Z_finalizer_registry�clearZ_run_after_forkers�infor8 Z_exit_function� SystemExitr2 rC rN �sys�stderr�writer � tracebackr1 � print_exc� threadingZ _shutdownZ_flush_std_streams)r rR rS Z old_processrF �er] r r r � _bootstrap sD zBaseProcess._bootstrap)N)r* � __module__� __qualname__�__doc__r r5 r7 r8 r< r= r> r+ rA rB �propertyr1 �setterr rD rF rH rG r: rP ra r r r r r ? s0 c @ s e Zd Zdd� ZdS )rE c C s, ddl m} |� d kr td��tt| �ffS )NrQ )�get_spawning_popenzJPickling an AuthenticationString object is disallowed for security reasons)rS rg � TypeErrorrE �bytes)r rg r r r � __reduce__F s z AuthenticationString.__reduce__N)r* rb rc rj r r r r rE E s rE 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)rD Z semprefix) r r, r" r r# rE r �urandomr )r r r r r5 U s z_MainProcess.__init__c C s d S )Nr )r r r r rB g s z_MainProcess.closeN)r* rb rc r5 rB r r r r rk S s rk rQ � ZSIG�_)!�__all__r rZ �signalrU r_ Z _weakrefsetr �path�abspath�getcwdZ ORIGINAL_DIR�OSErrorr r r �objectr ri rE rk r r4 r rV r rO r �__dict__�itemsr1 Zsignumr- r r r r �<module> s6
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