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d@ }|�|�� t�|�� �|||dd� dd� }| �|||�S )Nr � r c S sR z |� � W S tk rL } z$|jtjtjfkr:t|j� �n� W 5 d }~X Y nX d S r7 r� r� r r r! �finish_sendfilee s � z.IocpProactor.sendfile.<locals>.finish_sendfile) r� rR r� rp Z TransmitFiler� �msvcrtZ get_osfhandler� ) r �sock�file�offset�countr Z offset_lowZ offset_highr� r r r! �sendfile[ s � zIocpProactor.sendfilec sJ | � � � t�t�}|�� �� �}|r0| �� �S � fdd�}| �|� |�S )Nc s |� � � S r7 )r� r� �rv r r! �finish_accept_pipe{ s z4IocpProactor.accept_pipe.<locals>.finish_accept_pipe)r� rR r� rp ZConnectNamedPiper� r� r� )r rv r Z connectedr� r r� r! r� p s zIocpProactor.accept_pipec � sr t }zt�|�}W qhW n0 tk rF } z|jtjkr6� W 5 d }~X Y nX t|d t�}t� |�I d H qt � |�S )N� ) �CONNECT_PIPE_INIT_DELAYrR Z ConnectPiper1 rS ZERROR_PIPE_BUSY�min�CONNECT_PIPE_MAX_DELAYr �sleepr rq )r r' �delayrG r4 r r r! r� � s zIocpProactor.connect_pipec C s | � ||d�S )z�Wait for a handle. 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