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threading_helper.cpython-310.pyc
o �*�g� � @ s� d dl Z d dlZd dlZd dlZd dlZd dlZd dlmZ dd� Zdd� Z dd� Z ej dd d ��Z dd d �Z ej dd d��ZG dd� d�ZdS )� N)�supportc C s t �� tj�� fS �N)�_thread�_count� threading� _dangling�copy� r r �4/usr/lib/python3.10/test/support/threading_helper.py�threading_setup s r c G s� d}t |�D ]L}t�� tjf}|| kr d S |sGdt_|d }t�d|d | d � d|d � dt|�� d�� |D ] }t�d |��� q:d }d }t � d � t� � qd S ) N�d T� z&threading_cleanup() failed to cleanup r z threads (count: z , dangling: �)zDangling thread: �{�G�z�?) �ranger r r r r �environment_altered� print_warning�len�time�sleep� gc_collect)�original_values� _MAX_COUNT�count�values�dangling_threads�threadr r r �threading_cleanup s, �� � �r c s t �� �� fdd��}|S )z�Use this function when threads are being used. This will ensure that the threads are cleaned up even when the test fails. c s$ t � }z � | � W t|� S t|� w r )r r )�args�key��funcr r � decorator: s z reap_threads.<locals>.decorator)� functools�wraps)r! r" r r r � reap_threads6 s r% c c s � | du rt j} t�� }zCdV W t�� }|| } t�� }||kr$dS t�� |krFt�� | }d|| � d|d�d|� d|� d� }t|��t�d � t �� qt�� }|| } t�� }||krc w t�� |kr�t�� | }d|| � d|d�d|� d|� d� }t|��t�d � t �� qY) aH bpo-31234: Context manager to wait until all threads created in the with statement exit. Use _thread.count() to check if threads exited. Indirectly, wait until threads exit the internal t_bootstrap() C function of the _thread module. threading_setup() and threading_cleanup() are designed to emit a warning if a test leaves running threads in the background. This context manager is designed to cleanup threads started by the _thread.start_new_thread() which doesn't allow to wait for thread exit, whereas thread.Thread has a join() method. NTz!wait_threads() failed to cleanup z threads after �.1fz seconds (count: z , old count: r r ) r � SHORT_TIMEOUTr r r � monotonic�AssertionErrorr r )�timeout� old_count� start_time�deadliner �dt�msgr r r �wait_threads_exitD sZ � ��� ��� ��� �r0 c C s: |du rt j}| �|� | �� rd|d�d�}t|��dS )zcJoin a thread. Raise an AssertionError if the thread is still alive after timeout seconds. Nz failed to join the thread in r& z seconds)r r' �join�is_aliver) )r r* r/ r r r � join_threadi s �r3 c c s, � dd l }t| �} g }z�z| D ] }|�� |�|� qW n tjr/tdt| �t|�f � � d V W zX|r:|� t� � }t dd�D ]/}|d7 }|D ]}|� t |t� � d�� qKdd� |D �}|se ntjrrtd t|�|f � qCW d d� |D �}|r�|� tj� td t|� ��d S d d� |D �}|r�|� tj� td t|� ��w zW|r�|� t� � }t dd�D ]/}|d7 }|D ]}|� t |t� � d�� q�dd� |D �}|s� ntjr�td t|�|f � q�W d d� |D �}|r�|� tj� td t|� ��w d d� |D �}|�r|� tj� td t|� ��w ) Nr z/Can't start %d threads, only %d threads startedr � �< r c S � g | ]}|� � r|�qS r �r2 ��.0�tr r r � <listcomp>� � z!start_threads.<locals>.<listcomp>z7Unable to join %d threads during a period of %d minutesc S r6 r r7 r8 r r r r; � r< zUnable to join %d threads)� faulthandler�list�start�appendr �verbose�printr r r( r r1 �max�dump_traceback�sys�stdoutr) )�threads�unlockr= �startedr: �endtimer* r r r � start_threadsu s� � �� �� �� � �� � rK c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) �catch_threading_exceptiona Context manager catching threading.Thread exception using threading.excepthook. Attributes set when an exception is caught: * exc_type * exc_value * exc_traceback * thread See threading.excepthook() documentation for these attributes. These attributes are deleted at the context manager exit. Usage: with threading_helper.catch_threading_exception() as cm: # code spawning a thread which raises an exception ... # check the thread exception, use cm attributes: # exc_type, exc_value, exc_traceback, thread ... # exc_type, exc_value, exc_traceback, thread attributes of cm no longer # exists at this point # (to avoid reference cycles) c C s" d | _ d | _d | _d | _d | _d S r )�exc_type� exc_value� exc_tracebackr � _old_hook��selfr r r �__init__� s z"catch_threading_exception.__init__c C s$ |j | _ |j| _|j| _|j| _d S r )rM rN rO r )rR r r r r �_hook� s z catch_threading_exception._hookc C s t j| _| jt _| S r )r � excepthookrP rT rQ r r r � __enter__� s z#catch_threading_exception.__enter__c G s | j t_| `| `| `| `d S r )rP r rU rM rN rO r )rR �exc_infor r r �__exit__� s z"catch_threading_exception.__exit__N)�__name__� __module__� __qualname__�__doc__rS rT rV rX r r r r rL � s rL r )r � contextlibr# rE r r �testr r r r% �contextmanagerr0 r3 rK rL r r r r �<module> s $ %