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proactor_events.cpython-310.pyc
o �*�g � @ sX d Z dZddlZddlZddlZddlZddlZddlZddlZddl m Z ddl m Z ddl m Z ddl m Z dd l mZ dd l mZ dd l mZ dd l mZ dd lmZ dd� ZG dd� dejej�ZG dd� deej�ZG dd� deej�ZG dd� de�Z G dd� deej �Z G dd� deeej �Z G d d � d eeej �Z!G d d � d e j"�Z#dS ) z�Event loop using a proactor and related classes. A proactor is a "notify-on-completion" multiplexer. Currently a proactor is only implemented on Windows with IOCP. )�BaseProactorEventLoop� N� )� base_events)� constants)�futures)� exceptions)� protocols)�sslproto)� transports)�trsock)�loggerc C s� t �|�| jd< z |�� | jd< W n tjy( | j�� r&tj d|dd� Y nw d| jvrIz |� � | jd< W d S tjyH d | jd< Y d S w d S )N�socket�socknamezgetsockname() failed on %rT��exc_info�peername) r �TransportSocket�_extra� getsocknamer �error�_loop� get_debugr �warning� getpeername)� transport�sock� r �./usr/lib/python3.10/asyncio/proactor_events.py�_set_socket_extra s" ��� ��r c s� e Zd ZdZ d � fdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z e j fdd�Z d dd�Zdd� Zdd� Zdd� Z� ZS ) �_ProactorBasePipeTransportz*Base class for pipe and socket transports.Nc s� t � �||� | �|� || _| �|� || _d | _d | _d | _d| _ d| _ d| _ d| _ d| _ | jd ur9| j�� | j�| jj| � |d urQ| j�tj|d � d S d S )Nr F)�super�__init__� _set_extra�_sock� set_protocol�_server�_buffer� _read_fut� _write_fut�_pending_write� _conn_lost�_closing�_called_connection_lost� _eof_written�_attachr � call_soon� _protocol�connection_mader � _set_result_unless_cancelled��self�loopr �protocol�waiter�extra�server�� __class__r r r! 2 s* ��z#_ProactorBasePipeTransport.__init__c C s� | j jg}| jd u r|�d� n| jr|�d� | jd ur(|�d| j�� � �� | jd ur6|�d| j��� | jd urD|�d| j��� | jrR|�dt | j�� �� | j rZ|�d� d� d � |��S ) N�closed�closingzfd=zread=zwrite=zwrite_bufsize=z EOF writtenz<{}>� ) r; �__name__r# �appendr+ �filenor' r( r& �lenr- �format�join)r4 �infor r r �__repr__I s z#_ProactorBasePipeTransport.__repr__c C s || j d< d S )N�pipe)r �r4 r r r r r" [ � z%_ProactorBasePipeTransport._set_extrac C s || _ d S �N�r0 )r4 r6 r r r r$ ^ � z'_ProactorBasePipeTransport.set_protocolc C � | j S rJ rK �r4 r r r � get_protocola � z'_ProactorBasePipeTransport.get_protocolc C rM rJ )r+ rN r r r � is_closingd rP z%_ProactorBasePipeTransport.is_closingc C s` | j rd S d| _ | jd7 _| js | jd u r | j�| jd � | jd ur.| j�� d | _d S d S )NTr ) r+ r* r& r( r r/ �_call_connection_lostr' �cancelrN r r r �closeg s �z _ProactorBasePipeTransport.closec C s0 | j d ur|d| ��t| d� | j �� d S d S )Nzunclosed transport )�source)r# �ResourceWarningrT )r4 �_warnr r r �__del__r s �z"_ProactorBasePipeTransport.__del__� Fatal error on pipe transportc C sn z0t |t�r| j�� rtjd| |dd� n| j�||| | jd�� W | �|� d S W | �|� d S | �|� w )Nz%r: %sTr )�message� exceptionr r6 ) � isinstance�OSErrorr r r �debug�call_exception_handlerr0 � _force_close)r4 �excrZ r r r � _fatal_errorw s � �� z'_ProactorBasePipeTransport._fatal_errorc C s� | j d ur| j �� s|d u r| j �d � n| j �|� | jr#| jr#d S d| _| jd7 _| jr8| j�� d | _| j rC| j �� d | _ d| _ d | _ | j � | j|� d S )NTr r )� _empty_waiter�done� set_result� set_exceptionr+ r, r* r( rS r' r) r& r r/ rR )r4 ra r r r r` � s" z'_ProactorBasePipeTransport._force_closec C s� | j rd S z6| j�|� W t| jd�r!| j�� dkr!| j�tj� | j� � d | _| j }|d ur7|� � d | _ d| _ d S t| jd�rP| j�� dkrP| j�tj� | j� � d | _| j }|d urf|� � d | _ d| _ w )N�shutdown���T) r, r0 �connection_lost�hasattrr# rA rg r � SHUT_RDWRrT r% �_detach)r4 ra r9 r r r rR � s, � z0_ProactorBasePipeTransport._call_connection_lostc C s" | j }| jd ur|t| j�7 }|S rJ )r) r& rB )r4 �sizer r r �get_write_buffer_size� s z0_ProactorBasePipeTransport.get_write_buffer_size�NNN)rY )r? � __module__� __qualname__�__doc__r! rF r" r$ rO rQ rT �warnings�warnrX rb r` rR rn � __classcell__r r r: r r . s � r c sX e Zd ZdZ d� fdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z ddd�Z � Z S )�_ProactorReadPipeTransportzTransport for read pipes.N� c sD d| _ d| _t� �||||||� t|�| _| j�| j� d| _d S )Nrh TF) �_pending_data_length�_pausedr r! � bytearray�_datar r/ � _loop_reading)r4 r5 r r6 r7 r8 r9 � buffer_sizer: r r r! � s z#_ProactorReadPipeTransport.__init__c C s | j o| j S rJ )ry r+ rN r r r � is_reading� s z%_ProactorReadPipeTransport.is_readingc C s4 | j s| jrd S d| _| j�� rt�d| � d S d S )NTz%r pauses reading)r+ ry r r r r^ rN r r r � pause_reading� s �z(_ProactorReadPipeTransport.pause_readingc C s~ | j s| jsd S d| _| jd u r| j�| jd � | j}d| _|dkr0| j�| j| jd |� |� | j� � r=t � d| � d S d S )NFrh z%r resumes reading) r+ ry r' r r/ r| rx �_data_receivedr{ r r r^ )r4 �lengthr r r �resume_reading� s �z)_ProactorReadPipeTransport.resume_readingc C s~ | j �� r t�d| � z| j�� }W n" ttfy � ty4 } z | � |d� W Y d }~d S d }~ww |s=| � � d S d S )Nz%r received EOFz1Fatal error: protocol.eof_received() call failed.) r r r r^ r0 � eof_received� SystemExit�KeyboardInterrupt� BaseExceptionrb rT )r4 � keep_openra r r r � _eof_received� s ��� �z(_ProactorReadPipeTransport._eof_receivedc C s� | j r| jdks J �|| _d S |dkr| �� d S t| jtj�rMz t�| j|� W d S tt fy4 � t yL } z | � |d� W Y d }~d S d }~ww | j� |� d S )Nrh r z3Fatal error: protocol.buffer_updated() call failed.) ry rx r� r\ r0 r �BufferedProtocol� _feed_data_to_buffered_protor� r� r� rb � data_received)r4 �datar� ra r r r r� � s( ���z)_ProactorReadPipeTransport._data_receivedc C s� d}d }z�za|d urD| j |u s| j d u r| jsJ �d | _ |�� r@|�� }|dkr8W W |dkr6| �||� d S d S | jd |� }n|�� | jrWW W |dkrU| �||� d S d S | jse| jj � | j | j�| _ W nb t y� } z | jsx| � |d� n | j�� r�tjddd� W Y d }~nId }~w ty� } z | �|� W Y d }~n3d }~w ty� } z | � |d� W Y d }~n d }~w tjy� | jsƂ Y n w | js�| j �| j� W |dkr�| �||� d S d S |dkr�| �||� w w )Nrh r z"Fatal read error on pipe transportz*Read error on pipe transport while closingTr )r' r+ rd �resultr� r{ rS ry r � _proactor� recv_intor# �ConnectionAbortedErrorrb r r r^ �ConnectionResetErrorr` r] r �CancelledError�add_done_callbackr| )r4 �futr� r� ra r r r r| sh �"����� ������� ��z(_ProactorReadPipeTransport._loop_reading)NNNrw rJ ) r? rp rq rr r! r~ r r� r� r� r| ru r r r: r rv � s � rv c s^ e Zd ZdZdZ� fdd�Zdd� Zddd �Zd d � Zd d � Z dd� Z dd� Z dd� Z � Z S )� _ProactorBaseWritePipeTransportzTransport for write pipes.Tc s t � j|i |�� d | _d S rJ )r r! rc �r4 �args�kwr: r r r! M s z(_ProactorBaseWritePipeTransport.__init__c C s� t |tttf�stdt|�j� ���| jrtd��| j d ur"td��|s&d S | j r=| j t j kr4t �d� | j d7 _ d S | jd u rS| jd u sIJ �| jt|�d� d S | jsat|�| _| �� d S | j�|� | �� d S )Nz/data argument must be a bytes-like object, not zwrite_eof() already calledz(unable to write; sendfile is in progressz socket.send() raised exception.r )r� )r\ �bytesrz � memoryview� TypeError�typer? r- � RuntimeErrorrc r* r �!LOG_THRESHOLD_FOR_CONNLOST_WRITESr r r( r& � _loop_writing�_maybe_pause_protocol�extend)r4 r� r r r �writeQ s2 �� z%_ProactorBaseWritePipeTransport.writeNc C s� z�|d ur| j d u r| jrW d S || j u sJ �d | _ d| _|r#|�� |d u r-| j}d | _|sI| jr:| j�| jd � | jrD| j � t j � | � � n.| jj�| j |�| _ | j �� sp| jdks_J �t|�| _| j �| j� | �� n| j �| j� | jd ur�| j d u r�| j�d � W d S W d S W d S ty� } z | �|� W Y d }~d S d }~w ty� } z | �|d� W Y d }~d S d }~ww )Nr z#Fatal write error on pipe transport)r( r+ r) r� r& r r/ rR r- r# rg r �SHUT_WR�_maybe_resume_protocolr� �sendrd rB r� r� r� rc re r� r` r] rb )r4 �fr� ra r r r r� w sD ����z-_ProactorBaseWritePipeTransport._loop_writingc C � dS �NTr rN r r r � can_write_eof� � z-_ProactorBaseWritePipeTransport.can_write_eofc C s | � � d S rJ )rT rN r r r � write_eof� s z)_ProactorBaseWritePipeTransport.write_eofc C � | � d � d S rJ �r` rN r r r �abort� rI z%_ProactorBaseWritePipeTransport.abortc C s: | j d ur td��| j�� | _ | jd u r| j �d � | j S )NzEmpty waiter is already set)rc r� r � create_futurer( re rN r r r �_make_empty_waiter� s z2_ProactorBaseWritePipeTransport._make_empty_waiterc C s d | _ d S rJ )rc rN r r r �_reset_empty_waiter� rL z3_ProactorBaseWritePipeTransport._reset_empty_waiter�NN)r? 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rp rq r� r! r" rn r� r� r� r| ru r r r: r r� � s � !r� c @ s e Zd ZdZdd� Zdd� ZdS )� _ProactorDuplexPipeTransportzTransport for duplex pipes.c C r� )NFr rN r r r r� Q r� z*_ProactorDuplexPipeTransport.can_write_eofc C s t �rJ )�NotImplementedErrorrN r r r r� T r� z&_ProactorDuplexPipeTransport.write_eofN)r? rp rq rr r� r� r r r r r� L s r� c sF e Zd ZdZejjZ d � fdd� Zdd� Z dd� Z d d � Z � Z S ) �_ProactorSocketTransportz Transport for connected sockets.Nc s$ t � �||||||� t�|� d S rJ )r r! r � _set_nodelayr3 r: r r r! _ s z!_ProactorSocketTransport.__init__c C r� rJ r� rH r r r r" d rI z#_ProactorSocketTransport._set_extrac C r� r� r rN r r r r� g r� z&_ProactorSocketTransport.can_write_eofc C s6 | j s| jrd S d| _| jd u r| j�tj� d S d S r� )r+ r- r( r# rg r r� rN r r r r� j s �z"_ProactorSocketTransport.write_eofro ) r? rp rq rr r � _SendfileMode� TRY_NATIVE�_sendfile_compatibler! r" r� r� ru r r r: r r� X s �r� c s e Zd Z� fdd�Z d3dd�Z d4dddddd�dd �Z d3d d �Z d5d d �Z d5dd�Z d5dd�Z � fdd�Z dd� Z dd� Z dd� Z dd� Zd d � Zd d � Zd d!� Zd"d#� Zd$d%� Zd4d&d'�Zd(d)� Z * d6d+d,�Zd-d.� Zd/d0� Zd1d2� Z� ZS )7r c sl t � �� t�d|jj� || _|| _d | _i | _ |� | � | � � t � � t �� u r4t�| j�� � d S d S )NzUsing proactor: %s)r r! r r^ r; r? 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