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threading_helper.cpython-310.pyc
o }5h @ 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 dZG dd dZdS ) N)supportc C s t tj fS N)_thread_count threading _danglingcopy r r 4/usr/lib/python3.10/test/support/threading_helper.pythreading_setup s r c G s d}t |D ]L}t tjf}|| kr d S |sGdt_|d }td|d | d d|d dt| d |D ] }td | q:d }d }t d t qd S ) Nd T z&threading_cleanup() failed to cleanup r z threads (count: z , dangling: )zDangling thread: {Gz?) ranger r r r r environment_altered print_warninglentimesleep gc_collect)original_values _MAX_COUNTcountvaluesdangling_threadsthreadr r r threading_cleanup s, r c s t fdd}|S )zUse 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 )argskeyfuncr r decorator: s z reap_threads.<locals>.decorator) functoolswraps)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|dd| d| d }t|td t qt }|| } t }||krc w t |krt | }d|| d|dd| d| d }t|td 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 monotonicAssertionErrorr r )timeout old_count start_timedeadliner dtmsgr r r wait_threads_exitD sZ r0 c C s: |du rt j}| | | rd|dd}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' joinis_aliver) )r r* r/ r r r join_threadi s r3 c c s, dd l }t| } g }zz| D ] }| || qW n tjr/tdt| t|f d V W zX|r:| t }t ddD ]/}|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 ddD ]/}|d7 }|D ]}| t |t d qdd |D }|s ntjrtd t||f qW 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 .0tr 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) faulthandlerliststartappendr verboseprintr r r( r r1 maxdump_tracebacksysstdoutr) )threadsunlockr= 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_hookselfr 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 $ %