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QueueEmpty N )events)locksc @ s e Zd ZdZdS )r z;Raised when Queue.get_nowait() is called on an empty Queue.N__name__
__module__ __qualname____doc__ r r &/usr/lib64/python3.8/asyncio/queues.pyr s r c @ s e Zd ZdZdS )r zDRaised when the Queue.put_nowait() method is called on a full Queue.Nr
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dd Zdd Zdd Zd d Zd d Zd!d" Zd#d$ Zd%d& Zd'd( ZdS )*r a A queue, useful for coordinating producer and consumer coroutines.
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queue reaches maxsize, until an item is removed by get().
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with qsize(), since your single-threaded asyncio application won't be
interrupted between calling qsize() and doing an operation on the Queue.
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Queue.__str__c C s~ d| j }t| dd r,|dt| j7 }| jrH|dt| j d7 }| jrd|dt| j d7 }| jrz|d| j 7 }|S )Nzmaxsize=r& z _queue=z
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Queue.maxsizec C s | j S )z3Return True if the queue is empty, False otherwise.r& r) r r r emptyd s z Queue.emptyc C s | j dkrdS | | j kS dS )zReturn True if there are maxsize items in the queue.
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z Queue.putc C s> | r t| | | jd7 _| j | | j dS )zyPut an item into the queue without blocking.
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zQueue.put_nowaitc s | r| j }| j| z|I dH W q | z| j| W n tk
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zQueue.get_nowaitc C s8 | j dkrtd| j d8 _ | j dkr4| j dS )a$ Indicate that a formerly enqueued task is complete.
Used by queue consumers. For each get() used to fetch a task,
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on the task is complete.
If a join() is currently blocking, it will resume when all items have
been processed (meaning that a task_done() call was received for every
item that had been put() into the queue).
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the queue.
r z!task_done() called too many timesr N)r rF r r r) r r r task_done s
zQueue.task_donec s | j dkr| j I dH dS )a Block until all items in the queue have been gotten and processed.
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queue. The count goes down whenever a consumer calls task_done() to
indicate that the item was retrieved and all work on it is complete.
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r c @ s4 e Zd ZdZdd ZejfddZejfddZ dS ) r zA subclass of Queue; retrieves entries in priority order (lowest first).
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g | _ d S r% r@ r' r r r r! s zPriorityQueue._initc C s || j | d S r% r@ )r" r. heappushr r r r/ s zPriorityQueue._putc C s
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g | _ d S r% r@ r' r r r r! s zLifoQueue._initc C s | j | d S r% r+ r- r r r r/ s zLifoQueue._putc C s
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