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dd� Zdd � Zd d � Zd d � ZdS )$r zjCreate a queue object with a given maximum size.
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zQueue.__init__c C sH | j �8 | jd }|dkr4|dk r*td��| j �� || _W dQ R X dS )a. Indicate that a formerly enqueued task is complete.
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| �� S Q R X dS )z9Return the approximate size of the queue (not reliable!).N)r �_qsize)r r r r �qsize[ s z Queue.qsizec C s | j � | �� S Q R X dS )a� Return True if the queue is empty, False otherwise (not reliable!).
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N)r r! )r r r r �empty` s z Queue.emptyc C s0 | j � d| j k o | �� kS S Q R X dS )aO Return True if the queue is full, False otherwise (not reliable!).
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� W dQ R X dS )a Put an item into the queue.
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z Queue.getc C s | j |dd�S )z�Put an item into the queue without blocking.
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put_nowait� s zQueue.put_nowaitc C s | j dd�S )z�Remove and return an item from the queue without blocking.
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z�Variant of Queue that retrieves open entries in priority order (lowest first).
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t | j�S )N)r3 r2 )r r r r r! � s zPriorityQueue._qsizec C s t | j|� d S )N)r r2 )r r( r r r r& � s zPriorityQueue._putc C s
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t | j�S )N)r3 r2 )r r r r r! � s zLifoQueue._qsizec C s | j �|� d S )N)r2 r4 )r r( r r r r& � s zLifoQueue._putc C s
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dS )�_PySimpleQueuezYSimple, unbounded FIFO queue.
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c C s t � | _t�d�| _d S )Nr )r �_queuer Z Semaphore�_count)r r r r r s z_PySimpleQueue.__init__TNc C s | j �|� | j�� dS )z�Put the item on the queue.
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s z_PySimpleQueue.putc C s4 |dk r|dk rt d��| j�||�s*t�| j�� S )a Remove and return an item from the queue.
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z_PySimpleQueue.getc C s | j |dd�S )z�Put an item into the queue without blocking.
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F)r) )r- )r r( r r r r0 ' s z_PySimpleQueue.put_nowaitc C s | j dd�S )z�Remove and return an item from the queue without blocking.
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t | j�S )z9Return the approximate size of the queue (not reliable!).)r3 r8 )r r r r r" ; s z_PySimpleQueue.qsize)TN)TN) r r
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