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Editing: thread.cpython-37.pyc
B � fA � @ s� d Z dZddlZddlmZ ddlZddlZddlZddlZddl Z e� � Z da dd� Z e�e � G dd � d e�Zd d � ZG d d � d ej�ZG dd� dej�ZdS )z Implements ThreadPoolExecutor.z"Brian Quinlan (brian@sweetapp.com)� N)�_baseFc C sJ da tt�� �} x| D ]\}}|�d � qW x| D ]\}}|�� q2W d S )NT)� _shutdown�list�_threads_queues�items�put�join)r �t�q� r �>/opt/alt/python37/lib64/python3.7/concurrent/futures/thread.py� _python_exit! s r c @ s e Zd Zdd� Zdd� ZdS )� _WorkItemc C s || _ || _|| _|| _d S )N)�future�fn�args�kwargs)�selfr r r r r r r �__init__. s z_WorkItem.__init__c C sf | j �� sd S y| j| j| j�}W n2 tk rT } z| j �|� d } W d d }~X Y nX | j �|� d S )N)r Z set_running_or_notify_cancelr r r � BaseException� set_exceptionZ set_result)r �result�excr r r �run4 s z _WorkItem.runN)�__name__� __module__� __qualname__r r r r r r r - s r c C s� |d k rPy ||� W n: t k rN tjjddd� | � }|d k rJ|�� d S X y`xZ|jdd�}|d k rt|�� ~qT| � }ts�|d ks�|jr�|d k r�d|_|�d � d S ~qTW W n$ t k r� tjjddd� Y nX d S )NzException in initializer:T)�exc_info)�blockzException in worker) r r ZLOGGERZcritical�_initializer_failed�getr r r )Zexecutor_referenceZ work_queue� initializer�initargsZexecutor� work_itemr r r �_workerB s2 r$ c @ s e Zd ZdZdS )�BrokenThreadPoolzR Raised when a worker thread in a ThreadPoolExecutor failed initializing. N)r r r �__doc__r r r r r% f s r% c @ sZ e Zd Ze�� jZddd�Zdd� Ze j jj e_ dd � Z d d � Z dd d�Ze j jj e_ dS )�ThreadPoolExecutorN� r c C s� |dkrt �� pdd }|dkr(td��|dk r@t|�s@td��|| _t�� | _t � | _ d| _ d| _ t �� | _|p|d| �� | _|| _|| _dS ) a� Initializes a new ThreadPoolExecutor instance. Args: max_workers: The maximum number of threads that can be used to execute the given calls. thread_name_prefix: An optional name prefix to give our threads. initializer: A callable used to initialize worker threads. initargs: A tuple of arguments to pass to the initializer. N� � r z"max_workers must be greater than 0z initializer must be a callableFzThreadPoolExecutor-%d)�os� cpu_count� ValueError�callable� TypeError� _max_workers�queueZ SimpleQueue� _work_queue�set�_threads�_brokenr � threadingZLock�_shutdown_lock�_counter�_thread_name_prefix� _initializer� _initargs)r Z max_workersZthread_name_prefixr! r" r r r r q s zThreadPoolExecutor.__init__c O s� t | �dkr| ^}}} n>| s&td��n0d|krB|�d�}| ^}} ntdt | �d ��|j�Z |jrnt|j��|jr|td��tr�td��t� � }t ||| |�}|j � |� |� � |S Q R X d S )N� zDdescriptor 'submit' of 'ThreadPoolExecutor' object needs an argumentr z6submit expected at least 1 positional argument, got %dr) z*cannot schedule new futures after shutdownz6cannot schedule new futures after interpreter shutdown)�lenr/ �popr7 r5 r% r � RuntimeErrorr ZFuturer r2 r �_adjust_thread_count)r r r r �f�wr r r �submit� s* zThreadPoolExecutor.submitc C s� | j fdd�}t| j�}|| jk r~d| jp,| |f }tj|tt� | |�| j | j | j fd�}d|_ |� � | j�|� | j t|< d S )Nc S s |� d � d S )N)r )�_r r r r � weakref_cb� s z;ThreadPoolExecutor._adjust_thread_count.<locals>.weakref_cbz%s_%d)�name�targetr T)r2 r= r4 r0 r9 r6 ZThreadr$ �weakref�refr: r; Zdaemon�start�addr )r rE Z num_threadsZ thread_namer r r r r@ � s z'ThreadPoolExecutor._adjust_thread_countc C sd | j �T d| _xFy| j�� }W n tjk r6 P Y nX |d k r|j�t| j�� qW W d Q R X d S )NzBA thread initializer failed, the thread pool is not usable anymore) r7 r5 r2 Z get_nowaitr1 ZEmptyr r r% )r r# r r r r � s z&ThreadPoolExecutor._initializer_failedTc C sD | j � d| _| j�d � W d Q R X |r@x| jD ] }|�� q0W d S )NT)r7 r r2 r r4 r )r �waitr r r r �shutdown� s zThreadPoolExecutor.shutdown)Nr( Nr )T)r r r � itertools�count�__next__r8 r rC r �Executorr& r@ r rM r r r r r' l s r' )r& � __author__�atexitZconcurrent.futuresr rN r1 r6 rH r+ �WeakKeyDictionaryr r r �register�objectr r$ ZBrokenExecutorr% rQ r' r r r r �<module> s $
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