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windows_events.cpython-310.pyc
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N��loopc s& t � j|d� | jr| jd= || _d S �Nr ���)�super�__init__�_source_traceback�_ov)�self�ovr �� __class__� �-/usr/lib/python3.10/asyncio/windows_events.pyr 6 s z_OverlappedFuture.__init__c sH t � �� }| jd ur"| jjrdnd}|�dd|� d| jjd�d�� |S )N�pending� completedr z overlapped=<z, �#x�>)r � _repr_infor r# �insert�address�r �info�stater r! r" r' < s z _OverlappedFuture._repr_infoc C st | j d u rd S z| j �� W n& ty4 } zd|| d�}| jr$| j|d< | j�|� W Y d }~nd }~ww d | _ d S )Nz&Cancelling an overlapped future failed��message� exception�future�source_traceback)r �cancel�OSErrorr �_loop�call_exception_handler)r �exc�contextr! r! r" �_cancel_overlappedC s � �� z$_OverlappedFuture._cancel_overlappedc � | � � t� j|d�S �N)�msg)r8 r r2 �r r; r r! r" r2 S � z_OverlappedFuture.cancelc s t � �|� | �� d S �N)r � set_exceptionr8 �r r/ r r! r" r? W s z _OverlappedFuture.set_exceptionc s t � �|� d | _d S r> )r � set_resultr �r �resultr r! r" rA [ s z _OverlappedFuture.set_resultr> ) �__name__� __module__� __qualname__�__doc__r r' r8 r2 r? rA � __classcell__r! r! r r" r 0 s r c sp e Zd ZdZdd�� fdd� Zdd� Z� fdd �Zd d � Zd d � Zd� fdd� Z � fdd�Z � fdd�Z � Z S )�_BaseWaitHandleFuturez2Subclass of Future which represents a wait handle.Nr c s8 t � j|d� | jr| jd= || _|| _|| _d| _d S )Nr r T)r r r r �_handle� _wait_handle� _registered)r r �handle� wait_handler r r! r" r c s z _BaseWaitHandleFuture.__init__c C s t �| jd�t jkS �Nr )�_winapi�WaitForSingleObjectrJ � WAIT_OBJECT_0�r r! r! r" �_pollq s �z_BaseWaitHandleFuture._pollc sd t � �� }|�d| jd��� | jd ur!| �� rdnd}|�|� | jd ur0|�d| jd��� |S )Nzhandle=r% �signaled�waitingz wait_handle=)r r' �appendrJ rT rK r* r r! r" r' v s z _BaseWaitHandleFuture._repr_infoc C s d | _ d S r> )r �r �futr! r! r" �_unregister_wait_cb� s z)_BaseWaitHandleFuture._unregister_wait_cbc C s� | j sd S d| _ | j}d | _zt�|� W n3 tyH } z'|jtjkr>d|| d�}| jr1| j|d< | j� |� W Y d }~d S W Y d }~nd }~ww | � d � d S �NFz$Failed to unregister the wait handler- r1 ) rL rK � _overlapped�UnregisterWaitr3 �winerror�ERROR_IO_PENDINGr r4 r5 rZ �r rN r6 r7 r! r! r" �_unregister_wait� s* � ��� z&_BaseWaitHandleFuture._unregister_waitc r9 r: )ra r r2 r< r r! r" r2 � r= z _BaseWaitHandleFuture.cancelc � | � � t� �|� d S r> )ra r r? r@ r r! r" r? � � z#_BaseWaitHandleFuture.set_exceptionc rb r> )ra r rA rB r r! r" rA � rc z _BaseWaitHandleFuture.set_resultr> ) rD rE rF rG r rT r' rZ ra r2 r? rA rH r! r! r r" rI ` s rI c sF e Zd ZdZdd�� fdd� Zdd� Z� fdd �Z� fd d �Z� ZS ) �_WaitCancelFuturezoSubclass of Future which represents a wait for the cancellation of a _WaitHandleFuture using an event. Nr c s t � j||||d� d | _d S )Nr )r r �_done_callback)r r �eventrN r r r! r" r � s z_WaitCancelFuture.__init__c C s t d��)Nz'_WaitCancelFuture must not be cancelled)� RuntimeErrorrS r! r! r" r2 � s z_WaitCancelFuture.cancelc �( t � �|� | jd ur| �| � d S d S r> )r rA re rB r r! r" rA � � �z _WaitCancelFuture.set_resultc rh r> )r r? re r@ r r! r" r? � ri z _WaitCancelFuture.set_exception) rD rE rF rG r r2 rA r? rH r! r! r r" rd � s rd c s6 e Zd Zdd�� fdd� Z� fdd�Zdd� Z� ZS ) �_WaitHandleFutureNr c s< t � j||||d� || _d| _t�d ddd �| _d | _d S )Nr TF)r r � _proactor�_unregister_proactorr\ � CreateEvent�_event� _event_fut)r r rM rN �proactorr r r! r" r � s z_WaitHandleFuture.__init__c sF | j d urt�| j � d | _ d | _| j�| j� d | _t� �|� d S r> ) rn rP � CloseHandlero rk � _unregisterr r rZ rX r r! r" rZ � s z%_WaitHandleFuture._unregister_wait_cbc C s� | j sd S d| _ | j}d | _z t�|| j� W n3 tyJ } z'|jtjkr@d|| d�}| jr3| j|d< | j � |� W Y d }~d S W Y d }~nd }~ww | j � | j| j �| _d S r[ )rL rK r\ �UnregisterWaitExrn r3 r^ r_ r r4 r5 rk � _wait_cancelrZ ro r` r! r! r" ra � s. � ��� �z"_WaitHandleFuture._unregister_wait)rD rE rF r rZ ra rH 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)r{ r} )r �tmpr! r! r" �_get_unconnected_pipe s z PipeServer._get_unconnected_pipec C sr | � � rd S tjtjB }|r|tjO }t�| j|tjtjB tj B tj t j t j tj tj�}t �|�}| j�|� |S r> )�closedrP �PIPE_ACCESS_DUPLEX�FILE_FLAG_OVERLAPPED� FILE_FLAG_FIRST_PIPE_INSTANCE�CreateNamedPiperw �PIPE_TYPE_MESSAGE�PIPE_READMODE_MESSAGE� PIPE_WAIT�PIPE_UNLIMITED_INSTANCESr �BUFSIZE�NMPWAIT_WAIT_FOREVER�NULL� PipeHandlerz �add)r �first�flags�h�piper! r! r" r} s" �� z PipeServer._server_pipe_handlec C s | j d u S r> )rw rS r! r! r" r� � zPipeServer.closedc C sV | j d ur | j �� d | _ | jd ur)| jD ]}|�� qd | _d | _| j�� d S d S r> )r| r2 rw rz �closer{ �clear)r r� r! r! r" r� " s �zPipeServer.closeN) rD rE rF rG r r r} r� r� �__del__r! r! r! r" ru � s ru c @ s e Zd ZdZdS )�_WindowsSelectorEventLoopz'Windows version of selector event loop.N)rD rE rF rG r! r! r! r" r� 1 � r� c sJ e Zd ZdZd � fdd� Z� fdd�Zdd� Zd d � Z d d d �Z� Z S )r z2Windows version of proactor event loop using IOCP.Nc s |d u rt � }t� �|� d S r> )r r r )r rp r r! r" r 8 s zProactorEventLoop.__init__c s� z2| j d u sJ �| �| j� t� �� W | j d ur1| j j}| j �� |d ur,| j�|� d | _ d S d S | j d urN| j j}| j �� |d urK| j�|� d | _ w r> ) �_self_reading_future� call_soon�_loop_self_readingr � run_foreverr r2 rk rr �r r r r! r" r� = s � z ProactorEventLoop.run_foreverc � s: �| j �|�}|I d H }|� }| j||d|id�}||fS )N�addr��extra)rk � connect_pipe�_make_duplex_pipe_transport)r �protocol_factoryr) �fr� �protocol�transr! r! r" �create_pipe_connectionP s � �z(ProactorEventLoop.create_pipe_connectionc � s0 �t � ��d� ����fdd� ����� �gS )Nc sT d }z7| r'| � � }�j�|� ��� r|�� W d S �� }�j||d� id� ��� }|d u r2W d S �j�|�} W nf t yT |rL|� � dkrL|�� �� �� Y d S t y� } z-|rq|� � dkrq�� d||d�� |�� n �jr|tjd|dd� �� �� W Y d }~d S d }~w tjy� |r�|�� Y d S Y d S w | �_| ��� d S ) Nr� r� r zPipe accept failed)r. r/ r� z Accept pipe failed on pipe %rT)�exc_info)rC rz �discardr� r� r� r rk � accept_pipe�BrokenPipeError�filenor� r3 r5 �_debugr �warningr �CancelledErrorr| �add_done_callback)r� r� r� r6 �r) �loop_accept_piper� r �serverr! r" r� [ sR � � ����z>ProactorEventLoop.start_serving_pipe.<locals>.loop_accept_piper> )ru r� )r r� r) r! r� r" �start_serving_pipeX s � -z$ProactorEventLoop.start_serving_pipec � sx �| � � } t| |||||||f| |d�| ��} z| I d H W | S ttfy) � ty; | �� | �� I d H � w )N)�waiterr� )� create_future�_WindowsSubprocessTransport� SystemExit�KeyboardInterrupt� BaseExceptionr� �_wait) r r� �args�shell�stdin�stdout�stderr�bufsizer� �kwargsr� �transpr! r! r" �_make_subprocess_transport� s& � ��� � �z,ProactorEventLoop._make_subprocess_transportr> ) rD rE rF rG r r� r� r� r� rH r! r! r r" r 5 s 5�r c @ s� e Zd ZdZd;dd�Zdd� Zdd� Zd d � Zd<d d �Zdd� Z d=dd�Z d=dd�Z d=dd�Z d>dd�Z d=dd�Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd<d%d&�Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd/d0� Zd1d2� Zd<d3d4�Zd5d6� Z d7d8� Z d9d:� Z d S )?r z#Proactor implementation using IOCP.r c C sD d | _ g | _t�tjtd|�| _i | _t� � | _ g | _ t� � | _ d S rO ) r4 �_resultsr\ �CreateIoCompletionPort�INVALID_HANDLE_VALUEr� �_iocp�_cacherx ry rL � _unregistered�_stopped_serving)r � concurrencyr! r! r" r � s � zIocpProactor.__init__c C s | j d u r td��d S )NzIocpProactor is closed)r� rg rS r! r! r" � _check_closed� s �zIocpProactor._check_closedc C sF dt | j� dt | j� g}| jd u r|�d� d| jjd�|�f S )Nzoverlapped#=%sz result#=%sr� z<%s %s>� )�lenr� r� r� rW r rD �join)r r+ r! r! r" �__repr__� s � zIocpProactor.__repr__c C s || _ d S r> )r4 )r r r! r! r" �set_loop� r� zIocpProactor.set_loopNc C s. | j s| �|� | j }g | _ z|W d }S d }w r> )r� rT )r �timeoutr~ r! r! r" �select� s zIocpProactor.selectc C s | j �� }|�|� |S r> )r4 r� rA )r �valuerY r! r! r" �_result� � zIocpProactor._resultr c C �| | � |� t�t�}zt|tj�r|�|�� ||� n|�|�� |� W n t y2 | � d� Y S w dd� }| � |||�S )N� c S �B z|� � W S ty } z|jtjtjfv rt|j� �� d }~ww r> �� getresultr3 r^ r\ �ERROR_NETNAME_DELETED�ERROR_OPERATION_ABORTED�ConnectionResetErrorr� �r� �keyr r6 r! r! r" � finish_recv� � � ��z&IocpProactor.recv.<locals>.finish_recv) �_register_with_iocpr\ � Overlappedr� � isinstance�socket�WSARecvr� �ReadFiler� r� � _register�r �conn�nbytesr� r r� r! r! r" �recv� � � � zIocpProactor.recvc C r� )Nr c S r� r> r� r� r! r! r" r� � r� z+IocpProactor.recv_into.<locals>.finish_recv) r� r\ r� r� r� r� � WSARecvIntor� � ReadFileIntor� r� r� )r r� �bufr� r r� r! r! r" � recv_into� r� zIocpProactor.recv_intoc C s^ | � |� t�t�}z |�|�� ||� W n ty# | �d� Y S w dd� }| �|||�S )N)r� Nc S r� r> r� r� r! r! r" r� r� z*IocpProactor.recvfrom.<locals>.finish_recv) r� r\ r� r� � WSARecvFromr� r� r� r� r� r! r! r" �recvfrom� s � zIocpProactor.recvfromc C s> | � |� t�t�}|�|�� |||� dd� }| �|||�S )Nc S r� r> r� r� r! r! r" � finish_send r� z(IocpProactor.sendto.<locals>.finish_send)r� r\ r� r� � WSASendTor� r� )r r� r� r� r� r r� r! r! r" �sendto s zIocpProactor.sendtoc C sZ | � |� t�t�}t|tj�r|�|�� ||� n|�|�� |� dd� }| � |||�S )Nc S r� r> r� r� r! r! r" r� & r� z&IocpProactor.send.<locals>.finish_send) r� r\ r� r� r� r� �WSASendr� � WriteFiler� )r r� r� r� 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� �struct�packr� � setsockoptr� � SOL_SOCKETr\ �SO_UPDATE_ACCEPT_CONTEXT� settimeout� gettimeout� getpeername)r� r� r r� �r� �listenerr! r" � finish_accept8 s � z*IocpProactor.accept.<locals>.finish_acceptc � s. �z| I d H W d S t jy |�� � w r> )r r� r� )r0 r� r! r! r" � accept_coroA s ��z(IocpProactor.accept.<locals>.accept_coror ) r� �_get_accept_socket�familyr\ r� r� �AcceptExr� r� r � ensure_futurer4 )r r r r r r0 �coror! r r" �accept2 s zIocpProactor.acceptc s� � j tjkrt�� �� |� | j�� }|�d � |S | � � � z t� � �� � j � W n" t yL } z|j tjkr9� � �� d dkrB� W Y d }~nd }~ww t�t�}|�� �� |� � fdd�}| �|� |�S )Nr r c s |� � � �tjtjd� � S rO )r� r� r� r� r\ �SO_UPDATE_CONNECT_CONTEXT�r� r� r �r� r! r" �finish_connectd s �z,IocpProactor.connect.<locals>.finish_connect)�typer� � SOCK_DGRAMr\ � WSAConnectr� r4 r� rA r� � BindLocalr r3 r^ �errno� WSAEINVAL� getsocknamer� r� � ConnectExr� )r r� r) rY �er r r! r r" �connectN s( ��� zIocpProactor.connectc C sb | � |� t�t�}|d@ }|d? d@ }|�|�� t�|�� �|||dd� dd� }| �|||�S )Nr � r c S r� r> r� r� r! r! r" �finish_sendfilew r� z.IocpProactor.sendfile.<locals>.finish_sendfile) r� r\ r� r� � TransmitFiler� �msvcrt� get_osfhandler� ) r �sock�file�offset�countr � offset_low� offset_highr r! r! r" �sendfilem s � zIocpProactor.sendfilec sJ | � � � t�t�}|�� �� �}|r| �� �S � fdd�}| �|� |�S )Nc s |� � � S r> )r� r �r� r! r" �finish_accept_pipe� s z4IocpProactor.accept_pipe.<locals>.finish_accept_pipe)r� r\ r� r� �ConnectNamedPiper� r� r� )r r� r � connectedr( r! r' r" r� � s zIocpProactor.accept_pipec � st �t } zt�|�}W n) ty$ } z |jtjkr� W Y d }~nd }~ww t|d t�}t� |�I d H qt � |�S )NT� ) �CONNECT_PIPE_INIT_DELAYr\ � ConnectPiper3 r^ �ERROR_PIPE_BUSY�min�CONNECT_PIPE_MAX_DELAYr �sleepr r� )r r) �delayrM r6 r! r! r" r� � 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 rM r� r! r! r" �wait_for_handle� s z IocpProactor.wait_for_handlec C s | � |d d�}||_|S rv )r3 re )r rf � done_callbackrY r! r! r" rt � s zIocpProactor._wait_cancelc s� | � � |d u r tj}nt�|d �}t�t�}t�|| j |j |�}|r.t |||| j d�� n t |||| | j d�� � jr?� jd= � fdd�}� |d|f| j|j < � S )N� @�@r r c s � � � S r> )rT r �r� r! r" �finish_wait_for_handle� s z=IocpProactor._wait_for_handle.<locals>.finish_wait_for_handler )r� rP �INFINITE�math�ceilr\ r� r� �RegisterWaitWithQueuer� r) rd r4 rj r r� )r rM r� � _is_cancel�msr rN r8 r! r7 r" r3 � s$ � � z IocpProactor._wait_for_handlec C s4 || j vr| j �|� t�|�� | jdd� d S d S rO )rL r� r\ r� r� r� �r �objr! r! r" r� � s �z IocpProactor._register_with_iocpc C s� | � � t|| jd�}|jr|jd= |js:z|d d |�}W n ty4 } z |�|� W Y d }~n d }~ww |�|� ||||f| j|j < |S r ) r� r r4 r r# r3 r? rA r� r) )r r r@ �callbackr� r� r r! r! r" r� � s �� zIocpProactor._registerc C s | � � | j�|� dS )a Unregister an overlapped object. 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