a XC?h�z�@s�dZdZddlZddlmZddlZddlZddlZddl m Z ddlZddlZddl mZddlZddlZddlZe��ZdaGdd �d �Zd d�Ze�e�dZd ZGdd�de�ZGdd�d�Zdd�ZGdd�de�ZGdd�de�Z Gdd�de�Z!Gdd�de �Z"dd�Z#dd�Z$d.d d!�Z%d"d#�Z&Gd$d%�d%ej'�Z(da)da*d&d'�Z+d(d)�Z,Gd*d+�d+ej-�Z.Gd,d-�d-ej/�Z0dS)/a- Implements ProcessPoolExecutor. The following diagram and text describe the data-flow through the system: |======================= In-process =====================|== Out-of-process ==| +----------+ +----------+ +--------+ +-----------+ +---------+ | | => | Work Ids | | | | Call Q | | Process | | | +----------+ | | +-----------+ | Pool | | | | ... | | | | ... | +---------+ | | | 6 | => | | => | 5, call() | => | | | | | 7 | | | | ... | | | | Process | | ... | | Local | +-----------+ | Process | | Pool | +----------+ | Worker | | #1..n | | Executor | | Thread | | | | | +----------- + | | +-----------+ | | | | <=> | Work Items | <=> | | <= | Result Q | <= | | | | +------------+ | | +-----------+ | | | | | 6: call() | | | | ... | | | | | | future | | | | 4, result | | | | | | ... | | | | 3, except | | | +----------+ +------------+ +--------+ +-----------+ +---------+ Executor.submit() called: - creates a uniquely numbered _WorkItem and adds it to the "Work Items" dict - adds the id of the _WorkItem to the "Work Ids" queue Local worker thread: - reads work ids from the "Work Ids" queue and looks up the corresponding WorkItem from the "Work Items" dict: if the work item has been cancelled then it is simply removed from the dict, otherwise it is repackaged as a _CallItem and put in the "Call Q". New _CallItems are put in the "Call Q" until "Call Q" is full. NOTE: the size of the "Call Q" is kept small because calls placed in the "Call Q" can no longer be cancelled with Future.cancel(). - reads _ResultItems from "Result Q", updates the future stored in the "Work Items" dict and deletes the dict entry Process #1..n: - reads _CallItems from "Call Q", executes the calls, and puts the resulting _ResultItems in "Result Q" z"Brian Quinlan ([email protected])�N)�_base)�Queue)�partialFc@s,eZdZdd�Zdd�Zdd�Zdd�Zd S) � _ThreadWakeupcCsd|_tjdd�\|_|_dS)NF)Zduplex)�_closed�mpZPipe�_reader�_writer��self�r�?/opt/alt/python39/lib64/python3.9/concurrent/futures/process.py�__init__Csz_ThreadWakeup.__init__cCs$|js d|_|j��|j��dS�NT)rr �closerr rrr rGs z_ThreadWakeup.closecCs|js|j�d�dS)N�)rr Z send_bytesr rrr �wakeupMsz_ThreadWakeup.wakeupcCs |js|j��r|j��qdS�N)rrZpollZ recv_bytesr rrr �clearQs z_ThreadWakeup.clearN)�__name__� __module__�__qualname__rrrrrrrr rBsrcCs@datt��}|D]\}}|��q|D]\}}|��q*dSr)�_global_shutdown�list�_threads_wakeups�itemsr�join)r�_� thread_wakeup�trrr �_python_exitWs r ��=c@seZdZdd�Zdd�ZdS)�_RemoteTracebackcCs ||_dSr��tb)rr%rrr rwsz_RemoteTraceback.__init__cCs|jSrr$r rrr �__str__ysz_RemoteTraceback.__str__N)rrrrr&rrrr r#vsr#c@seZdZdd�Zdd�ZdS)�_ExceptionWithTracebackcCs8t�t|�||�}d�|�}||_d|j_d||_dS)N�z """ %s""")� traceback�format_exception�typer�exc� __traceback__r%)rr,r%rrr r}s z _ExceptionWithTraceback.__init__cCst|j|jffSr)�_rebuild_excr,r%r rrr � __reduce__�sz"_ExceptionWithTraceback.__reduce__N)rrrrr/rrrr r'|sr'cCst|�|_|Sr)r#� __cause__)r,r%rrr r.�s r.c@seZdZdd�ZdS)� _WorkItemcCs||_||_||_||_dSr)�future�fn�args�kwargs)rr2r3r4r5rrr r�sz_WorkItem.__init__N�rrrrrrrr r1�sr1c@seZdZddd�ZdS)�_ResultItemNcCs||_||_||_dSr)�work_id� exception�result)rr8r9r:rrr r�sz_ResultItem.__init__)NNr6rrrr r7�sr7c@seZdZdd�ZdS)� _CallItemcCs||_||_||_||_dSr)r8r3r4r5)rr8r3r4r5rrr r�sz_CallItem.__init__Nr6rrrr r;�sr;cs.eZdZdZd�fdd� Z�fdd�Z�ZS)� _SafeQueuez=Safe Queue set exception to the future object linked to a jobrcs&||_||_||_t�j||d�dS)N)�ctx)�pending_work_items� shutdown_lockr�superr)r�max_sizer=r>r?r�� __class__rr r�sz_SafeQueue.__init__cs�t|t�r�t�t|�||j�}td�d�|��|_ |j �|jd�}|j �|j��Wd�n1sj0Y|dur�|j�|�nt��||�dS)Nz """ {}"""r()� isinstancer;r)r*r+r-r#�formatrr0r>�popr8r?rrr2� set_exceptionr@�_on_queue_feeder_error)r�e�objr%� work_itemrBrr rH�s (z!_SafeQueue._on_queue_feeder_error)r)rrr�__doc__rrH� __classcell__rrrBr r<�sr<cgs,t|�}tt�||��}|s dS|VqdS)z, Iterates over zip()ed iterables in chunks. 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