Edit File: windows_events.cpython-37.pyc
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N)r c s t � j||||d� d | _d S )N)r )r r �_done_callback)r r �eventr< r )r r r r � s z_WaitCancelFuture.__init__c C s t d��d S )Nz'_WaitCancelFuture must not be cancelled)� RuntimeError)r r r r r( � s z_WaitCancelFuture.cancelc s$ t � �|� | jd k r | �| � d S )N)r r0 rG )r r1 )r r r r0 � s z _WaitCancelFuture.set_resultc s$ t � �|� | jd k r | �| � d S )N)r r/ rG )r r% )r r r r/ � s z _WaitCancelFuture.set_exception) r2 r3 r4 r5 r r( r0 r/ r6 r r )r r rF � s rF c s6 e Zd Zdd�� fdd� Z� fdd�Zdd� Z� ZS ) �_WaitHandleFutureN)r c s< t � j||||d� || _d| _t�d ddd �| _d | _d S )N)r TF)r r � _proactorZ_unregister_proactorrB Z CreateEvent�_event� _event_fut)r r r; r< �proactorr )r r r r � s z_WaitHandleFuture.__init__c sF | j d k r"t�| j � d | _ d | _| j�| j� d | _t� �|� d S )N) rL r= � CloseHandlerM rK � _unregisterr r rA )r r@ )r r r rA � s z%_WaitHandleFuture._unregister_wait_cbc C s� | j s d S d| _ | j}d | _yt�|| j� W nZ tk r� } z<|jtjkrxd|| d�}| jrh| j|d< | j � |� d S W d d }~X Y nX | j � | j| j �| _d S )NFz$Failed to unregister the wait handle)r$ r% r& r' )r: r9 rB ZUnregisterWaitExrL r) rC rD r r* r+ rK � _wait_cancelrA rM )r r< r, r- r r r rE � s$ z"_WaitHandleFuture._unregister_wait)r2 r3 r4 r rA rE r6 r r )r r rJ � s rJ c @ s< e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � ZeZ d S ) � PipeServerzXClass representing a pipe server. This is much like a bound, listening socket. c C s, || _ t�� | _d | _d | _| �d�| _d S )NT)�_address�weakref�WeakSet�_free_instances�_pipe�_accept_pipe_future�_server_pipe_handle)r r! r r r r � s zPipeServer.__init__c C s | j | �d� }| _ |S )NF)rW rY )r �tmpr r r �_get_unconnected_pipe� s z PipeServer._get_unconnected_pipec C sr | � � r d S tjtjB }|r&|tjO }t�| j|tjtjB tj B tj t j t j tj tj�}t �|�}| j�|� |S )N)�closedr= ZPIPE_ACCESS_DUPLEXZFILE_FLAG_OVERLAPPEDZ FILE_FLAG_FIRST_PIPE_INSTANCEZCreateNamedPiperS ZPIPE_TYPE_MESSAGEZPIPE_READMODE_MESSAGEZ PIPE_WAITZPIPE_UNLIMITED_INSTANCESr ZBUFSIZEZNMPWAIT_WAIT_FOREVER�NULL� PipeHandlerV �add)r �first�flags�h�piper r r rY s z PipeServer._server_pipe_handlec C s | j d kS )N)rS )r r r r r\ s zPipeServer.closedc C sV | j d k r| j �� d | _ | jd k rRx| jD ] }|�� q,W d | _d | _| j�� d S )N)rX r( rS rV �closerW �clear)r rc r r r rd s zPipeServer.closeN) r2 r3 r4 r5 r r[ rY r\ rd �__del__r r r r rR � s rR c @ s e Zd ZdZdS )�_WindowsSelectorEventLoopz'Windows version of selector event loop.N)r2 r3 r4 r5 r r r r rg + s rg c s< e Zd ZdZd � fdd� Zdd� Zdd� Zd d d �Z� ZS ) r z2Windows version of proactor event loop using IOCP.Nc s |d krt � }t� �|� d S )N)r r r )r rN )r r r r 2 s zProactorEventLoop.__init__c � s8 | j �|�}|I d H }|� }| j||d|id�}||fS )N�addr)�extra)rK � connect_pipe�_make_duplex_pipe_transport)r �protocol_factoryr! �frc �protocol�transr r r �create_pipe_connection7 s z(ProactorEventLoop.create_pipe_connectionc � s. t � ��d� ����fdd� ����� �gS )Nc s d }yj| rL| � � }�j�|� ��� r2|�� d S �� }�j||d� id� ��� }|d kr`d S �j�|�} W n� t k r� } zF|r�|� � dkr��� d||d�� |�� n�j r�t jd|dd� W d d }~X Y n2 tjk r� |r�|�� Y nX | �_| ��� d S ) Nrh )ri r zPipe accept failed)r$ r% rc z Accept pipe failed on pipe %rT)�exc_info)r1 rV �discardr\ rd rk r[ rK � accept_piper) �filenor+ Z_debugr Zwarningr �CancelledErrorrX �add_done_callback)rm rc rn r, )r! �loop_accept_piperl r �serverr r rw B s< z>ProactorEventLoop.start_serving_pipe.<locals>.loop_accept_pipe)N)rR Z call_soon)r rl r! r )r! rw rl r rx r �start_serving_pipe? s ( z$ProactorEventLoop.start_serving_pipec � sl | � � } t| |||||||f| |d�| ��} y| I d H W n, tk rf | �� | �� I d H � Y nX | S )N)�waiterri )� create_future�_WindowsSubprocessTransport� Exceptionrd Z_wait) r rn �args�shell�stdin�stdout�stderr�bufsizeri �kwargsrz Ztranspr r r �_make_subprocess_transportm s z,ProactorEventLoop._make_subprocess_transport)N)N) r2 r3 r4 r5 r rp ry r� r6 r r )r r r / s 0r c @ s� e Zd ZdZd7dd�Zdd� Zdd� Zd d � Zd8d d �Zdd� Z d9dd�Z d:dd�Z d;dd�Z dd� Z dd� Zdd � Zd d � Zd d � Zd<d!d"�Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd=d/d0�Zd1d2� Zd3d4� Zd5d6� Z d S )>r z#Proactor implementation using IOCP.� �� c C sD d | _ g | _t�tjtd|�| _i | _t� � | _ g | _ t� � | _ d S )Nr ) r* �_resultsrB �CreateIoCompletionPort�INVALID_HANDLE_VALUEr] �_iocp�_cacherT rU r: � _unregistered�_stopped_serving)r Z concurrencyr r r r � s zIocpProactor.__init__c C s | j d krtd��d S )NzIocpProactor is closed)r� rI )r r r r � _check_closed� s zIocpProactor._check_closedc C sF dt | j� dt | j� g}| jd kr0|�d� d| jjd�|�f S )Nzoverlapped#=%sz result#=%sr\ z<%s %s>� )�lenr� r� r� r? r r2 �join)r r" r r r �__repr__� s zIocpProactor.__repr__c C s || _ d S )N)r* )r r r r r �set_loop� s zIocpProactor.set_loopNc C s | j s| �|� | j }g | _ |S )N)r� r> )r �timeoutrZ r r r �select� s zIocpProactor.selectc C s | j �� }|�|� |S )N)r* r{ r0 )r �valuer@ r r r �_result� s zIocpProactor._resultr c C sz | � |� t�t�}y4t|tj�r6|�|�� ||� n|�|�� |� W n t k rb | � d�S X dd� }| � |||�S )N� c S sP y|� � S tk rJ } z$|jtjtjfkr8t|j� �n� W d d }~X Y nX d S )N)� getresultr) rC rB �ERROR_NETNAME_DELETED�ERROR_OPERATION_ABORTED�ConnectionResetErrorr~ )ro �keyr r, r r r � finish_recv� s z&IocpProactor.recv.<locals>.finish_recv) �_register_with_iocprB � Overlappedr] � isinstance�socketZWSARecvrt ZReadFile�BrokenPipeErrorr� � _register)r �conn�nbytesra r r� r r r �recv� s zIocpProactor.recvc C sz | � |� t�t�}y4t|tj�r6|�|�� ||� n|�|�� |� W n t k rb | � d�S X dd� }| � |||�S )Nr� c S sP y|� � S tk rJ } z$|jtjtjfkr8t|j� �n� W d d }~X Y nX d S )N)r� r) rC rB r� r� r� r~ )ro r� r r, r r r r� � s z+IocpProactor.recv_into.<locals>.finish_recv) r� rB r� r] r� r� Z WSARecvIntort Z ReadFileIntor� r� r� )r r� �bufra r r� r r r � recv_into� s zIocpProactor.recv_intoc C sZ | � |� t�t�}t|tj�r4|�|�� ||� n|�|�� |� dd� }| � |||�S )Nc S sP y|� � S tk rJ } z$|jtjtjfkr8t|j� �n� W d d }~X Y nX d S )N)r� r) rC rB r� r� r� r~ )ro r� r r, r r r � finish_send� s z&IocpProactor.send.<locals>.finish_send) r� rB r� r] r� r� ZWSASendrt Z WriteFiler� )r r� r� ra r r� r r r �send� s zIocpProactor.sendc sv | � �� | ��j�� t�t�}|���� � �� � � �fdd�}dd� }| �|�|�}||� �}t j || j d� |S )Nc sD |� � t�d��� �}� �tjtj|� � � �� � � � � � � fS )Nz@P) r� �structZpackrt � setsockoptr� � SOL_SOCKETrB ZSO_UPDATE_ACCEPT_CONTEXT� settimeoutZ gettimeoutZ getpeername)ro r� r r� )r� �listenerr r � finish_accept� s z*IocpProactor.accept.<locals>.finish_acceptc � s4 y| I d H W n t jk r. |�� � Y nX d S )N)r ru rd )r& r� r r r � accept_coro� s z(IocpProactor.accept.<locals>.accept_coro)r ) r� �_get_accept_socket�familyrB r� r] ZAcceptExrt r� r Z ensure_futurer* )r r� r r� r� r& �coror )r� r� r �accept� s zIocpProactor.acceptc s� | � � � yt�� �� � j� W nB tk rb } z$|jtjkr@� � � � d dkrR� W d d }~X Y nX t� t �}|� � �� |� � fdd�}| � |� |�S )Nr r c s |� � � �tjtjd� � S )Nr )r� r� r� r� rB ZSO_UPDATE_CONNECT_CONTEXT)ro r� r )r� r r �finish_connect s z,IocpProactor.connect.<locals>.finish_connect)r� rB Z BindLocalrt r� r) rC �errnoZ WSAEINVALZ getsocknamer� r] Z ConnectExr� )r r� r! �er r� r )r� r �connect s zIocpProactor.connectc C sb | � |� t�t�}|d@ }|d? d@ }|�|�� t�|�� �|||dd� dd� }| �|||�S )Nl �� � r c S sP y|� � S tk rJ } z$|jtjtjfkr8t|j� �n� W d d }~X Y nX d S )N)r� r) rC rB r� r� r� r~ )ro r� r r, r r r �finish_sendfile% s z.IocpProactor.sendfile.<locals>.finish_sendfile) r� rB r� r] Z TransmitFilert �msvcrtZ get_osfhandler� ) r Zsock�file�offset�countr Z offset_lowZ offset_highr� r r r �sendfile s zIocpProactor.sendfilec sJ | � � � t�t�}|�� �� �}|r0| �� �S � fdd�}| �|� |�S )Nc s |� � � S )N)r� )ro r� r )rc r r �finish_accept_pipe; s z4IocpProactor.accept_pipe.<locals>.finish_accept_pipe)r� rB r� r] ZConnectNamedPipert r� r� )r rc r Z connectedr� r )rc r rs 0 s zIocpProactor.accept_pipec � sz t }xjyt�|�}P W n0 tk rF } z|jtjkr6� W d d }~X Y nX t|d t�}tj || j d�I d H qW t � |�S )N� )r ) �CONNECT_PIPE_INIT_DELAYrB Z ConnectPiper) rC ZERROR_PIPE_BUSY�min�CONNECT_PIPE_MAX_DELAYr Zsleepr* r r^ )r r! Zdelayr; r, r r r rj A s zIocpProactor.connect_pipec C s | � ||d�S )z�Wait for a handle. Return a Future object. The result of the future is True if the wait completed, or False if the wait did not complete (on timeout). F)�_wait_for_handle)r r; r� r r r �wait_for_handleT s z IocpProactor.wait_for_handlec C s | � |d d�}||_|S )NT)r� rG )r rH Z done_callbackr@ r r r rQ \ s zIocpProactor._wait_cancelc s� | � � |d krtj}nt�|d �}t�t�}t�|| j |j |�}|r\t |||| j d�� nt |||| | j d�� � jr~� jd= � fdd�}� |d|f| j|j < � S )Ng @�@)r r c s � � � S )N)r> )ro r� r )rm r r �finish_wait_for_handley s z=IocpProactor._wait_for_handle.<locals>.finish_wait_for_handler )r� r= �INFINITE�math�ceilrB r� r] ZRegisterWaitWithQueuer� r! rF r* rJ r r� )r r; r� Z _is_cancel�msr r< r� r )rm r r� c s z IocpProactor._wait_for_handlec C s0 || j kr,| j �|� t�|�� | jdd� d S )Nr )r: r_ rB r� rt r� )r �objr r r r� � s z IocpProactor._register_with_iocpc C s� | � � t|| jd�}|jr$|jd= |jsry|d d |�}W n, tk rf } z|�|� W d d }~X Y n X |�|� ||||f| j|j < |S )N)r r ) r� r r* r r r) r/ r0 r� r! )r r r� �callbackrm r� r� r r r r� � s zIocpProactor._registerc C s | � � | j�|� dS )a Unregister an overlapped object. 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