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Edit File: _threadworker.cpython-310.pyc
o �b� � @ s^ d Z ddlmZ ddlmZ ddlmZ e� Zee�G dd� d��Z ee�G dd � d ��Z d S ) zE Implementation of an L{IWorker} based on native threads and queues. � )� implementer� )�Quit)�IExclusiveWorkerc @ �( e Zd ZdZdd� Zdd� Zdd� ZdS ) � ThreadWorkerz� An L{IExclusiveWorker} implemented based on a single thread and a queue. This worker ensures exclusivity (i.e. it is an L{IExclusiveWorker} and not an L{IWorker}) by performing all of the work passed to C{do} on the I{same} thread. c s& � | _ t� | _� fdd�}||� dS )a� Create a L{ThreadWorker} with a function to start a thread and a queue to use to communicate with that thread. @param startThread: a callable that takes a callable to run in another thread. @type startThread: callable taking a 0-argument callable and returning nothing. @param queue: A L{Queue} to use to give tasks to the thread created by C{startThread}. @type queue: L{Queue} c s t � jt�D ]} | � qd S )N)�iter�get�_stop)�task��queue� �@/usr/lib/python3/dist-packages/twisted/_threads/_threadworker.py�work- s �z#ThreadWorker.__init__.<locals>.workN)�_qr �_hasQuit)�self� startThreadr r r r r �__init__ s zThreadWorker.__init__c C s | j �� | j�|� dS )z� Perform the given task on the thread owned by this L{ThreadWorker}. @param task: the function to call on a thread. N)r �checkr �put)r r r r r �do3 � zThreadWorker.doc C s | j �� | j�t� dS )zT Reject all future work and stop the thread started by C{__init__}. N)r �setr r r �r r r r �quit< r zThreadWorker.quitN��__name__� __module__� __qualname__�__doc__r r r r r r r r s r c @ r ) � LockWorkerzE An L{IWorker} implemented based on a mutual-exclusion lock. c C s t � | _|| _|| _dS )z� @param lock: A mutual-exclusion lock, with C{acquire} and C{release} methods. @type lock: L{threading.Lock} @param local: Local storage. @type local: L{threading.local} N)r �_quit�_lock�_local)r �lock�localr r r r L s zLockWorker.__init__c C s� | j }| j}| j�� t|dd�}|du rJg }|_|�|� |�� z |r8|�d�� |s&W |� � d|_dS W |� � d|_dS |� � d|_w |�|� dS )z� Do the given work on this thread, with the mutex acquired. If this is called re-entrantly, return and wait for the outer invocation to do the work. @param work: the work to do with the lock held. �workingNr ) r$ r% r# r �getattrr( �append�acquire�pop�release)r r r& r' r( r r r r Y s( � � �z LockWorker.doc C s | j �� d| _dS )z* Quit this L{LockWorker}. N)r# r r$ r r r r r r s zLockWorker.quitNr r r r r r" F s r" N) r! �zope.interfacer � _conveniencer � _ithreadsr �objectr r r" r r r r �<module> s 3