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✏️ selector_events.cpython-37.opt-2.pyc
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� | _ d S )NzUsing selector: %s) �super�__init__� selectorsZDefaultSelectorr �debug� __class__�__name__� _selector�_make_self_pipe�weakrefZWeakValueDictionary� _transports)�selfr )r r r r 5 s z BaseSelectorEventLoop.__init__)�extra�serverc C s t | |||||�S )N)�_SelectorSocketTransport)r$ r �protocol�waiterr% r& r r r �_make_socket_transport? s z,BaseSelectorEventLoop._make_socket_transportF)� server_side�server_hostnamer% r& �ssl_handshake_timeoutc C s0 t j| |||||| d�} t| || ||d� | jS )N)r- )r% r& )r Z SSLProtocolr' Z_app_transport) r$ Zrawsockr( � sslcontextr) r+ r, r% r& r- Z ssl_protocolr r r �_make_ssl_transportD s z)BaseSelectorEventLoop._make_ssl_transportc C s t | |||||�S )N)�_SelectorDatagramTransport)r$ r r( �addressr) r% r r r �_make_datagram_transportQ s z.BaseSelectorEventLoop._make_datagram_transportc sL | � � rtd��| �� r d S | �� t� �� | jd k rH| j�� d | _d S )Nz!Cannot close a running event loop)Z is_running� RuntimeError� is_closed�_close_self_piper �closer )r$ )r r r r6 V s zBaseSelectorEventLoop.closec C sB | � | j�� � | j�� d | _| j�� d | _| jd8 _d S )Nr )�_remove_reader�_ssock�filenor6 �_csock� _internal_fds)r$ r r r r5 a s z&BaseSelectorEventLoop._close_self_pipec C sN t �� \| _| _| j�d� | j�d� | jd7 _| �| j�� | j� d S )NFr ) �socketZ socketpairr8 r: � setblockingr; � _add_readerr9 �_read_from_self)r$ r r r r! i s z%BaseSelectorEventLoop._make_self_pipec C s d S )Nr )r$ �datar r r �_process_self_dataq s z(BaseSelectorEventLoop._process_self_datac C sV xPy | j �d�}|sP | �|� W q tk r8 wY q tk rL P Y qX qW d S )Ni )r8 �recvrA �InterruptedError�BlockingIOError)r$ r@ r r r r? t s z%BaseSelectorEventLoop._read_from_selfc C sJ | j }|d k rFy|�d� W n( tk rD | jr@tjddd� Y nX d S )N� z3Fail to write a null byte into the self-pipe socketT)�exc_info)r: �send�OSError�_debugr r )r$ Zcsockr r r �_write_to_self� s z$BaseSelectorEventLoop._write_to_self�d c C s" | � |�� | j||||||� d S )N)r> r9 �_accept_connection)r$ �protocol_factoryr r. r& �backlogr- r r r �_start_serving� s z$BaseSelectorEventLoop._start_servingc C s � x�t |�D ]�}y0|�� \}} | jr4t�d|| |� |�d� W n� tttfk rZ d S t k r� } z^| j t j t j t j t jfkr�| �d| |d�� | �|�� � | �tj| j||||||� n� W d d } ~ X Y q X d| i} | �||| |||�} | �| � q W d S )Nz#%r got a new connection from %r: %rFz&socket.accept() out of system resource)�message� exceptionr< �peername)�range�acceptrI r r r= rD rC �ConnectionAbortedErrorrH �errnoZEMFILEZENFILEZENOBUFSZENOMEM�call_exception_handlerr7 r9 Z call_laterr ZACCEPT_RETRY_DELAYrO �_accept_connection2Z create_task) r$ rM r r. r& rN r- �_�conn�addr�excr% rT r r r rL � s6 z(BaseSelectorEventLoop._accept_connectionc � s� d }d }yl|� }| � � } |r8| j|||| d|||d�}n| j||| ||d�}y| I d H W n |�� � Y nX W n\ tk r� } z>| jr�d| d�} |d k r�|| d< |d k r�|| d< | �| � W d d } ~ X Y nX d S )NT)r) r+ r% r& r- )r) r% r& z3Error on transport creation for incoming connection)rP rQ r( � transport)� create_futurer/ r* r6 � ExceptionrI rW ) r$ rM rZ r% r. r& r- r( r] r) r\ �contextr r r rX � s6 z)BaseSelectorEventLoop._accept_connection2c C s� |}t |t�sJyt|�� �}W n* tttfk rH td|���d �Y nX y| j| }W n tk rl Y n X |�� s�t d|�d|����d S )NzInvalid file object: zFile descriptor z is used by transport ) r �intr9 �AttributeErrorr � ValueErrorr# r � is_closingr3 )r$ r r9 r] r r r �_ensure_fd_no_transport� s z-BaseSelectorEventLoop._ensure_fd_no_transportc G s� | � � t�||| d �}y| j�|�}W n* tk rR | j�|tj|d f� Y n>X |j|j }\}}| j� ||tjB ||f� |d k r�|� � d S )N) � _check_closedr �Handler r r �registerr � EVENT_READr@ �modify�cancel) r$ r �callback�args�handler �mask�reader�writerr r r r> � s z!BaseSelectorEventLoop._add_readerc C s� | � � r dS y| j�|�}W n tk r0 dS X |j|j }\}}|tj M }|sb| j�|� n| j� ||d |f� |d k r�|� � dS dS d S )NFT) r4 r r r r r@ r ri � unregisterrj rk )r$ r r ro rp rq r r r r7 s z$BaseSelectorEventLoop._remove_readerc G s� | � � t�||| d �}y| j�|�}W n* tk rR | j�|tjd |f� Y n>X |j|j }\}}| j� ||tjB ||f� |d k r�|� � d S )N) rf r rg r r r rh r � EVENT_WRITEr@ rj rk ) r$ r rl rm rn r ro rp rq r r r � _add_writer s z!BaseSelectorEventLoop._add_writerc C s� | � � r dS y| j�|�}W n tk r0 dS X |j|j }\}}|tj M }|sb| j�|� n| j� |||d f� |d k r�|� � dS dS d S )NFT) r4 r r r r r@ r rs rr rj rk )r$ r r ro rp rq r r r �_remove_writer/ s z$BaseSelectorEventLoop._remove_writerc G s | � |� | j||f|�� S )N)re r> )r$ r rl rm r r r � add_readerF s z BaseSelectorEventLoop.add_readerc C s | � |� | �|�S )N)re r7 )r$ r r r r � remove_readerK s z#BaseSelectorEventLoop.remove_readerc G s | � |� | j||f|�� S )N)re rt )r$ r rl rm r r r � add_writerP s z BaseSelectorEventLoop.add_writerc C s | � |� | �|�S )N)re ru )r$ r r r r � remove_writerU s z#BaseSelectorEventLoop.remove_writerc � sD t |� | jr"|�� dkr"td��| �� }| �|d ||� |I d H S )Nr z the socket must be non-blocking)r rI � gettimeoutrc r^ � _sock_recv)r$ r �n�futr r r � sock_recvZ s z BaseSelectorEventLoop.sock_recvc C s� |d k r| � |� |�� r d S y|�|�}W n` ttfk rb |�� }| �|| j||||� Y n6 tk r� } z|� |� W d d }~X Y n X |� |� d S )N) rw � cancelledrB rD rC r9 rv r{ r_ � set_exception� set_result)r$ r} � registered_fdr r| r@ r r\ r r r r{ h s z BaseSelectorEventLoop._sock_recvc � sD t |� | jr"|�� dkr"td��| �� }| �|d ||� |I d H S )Nr z the socket must be non-blocking)r rI rz rc r^ �_sock_recv_into)r$ r �bufr} r r r �sock_recv_into} s z$BaseSelectorEventLoop.sock_recv_intoc C s� |d k r| � |� |�� r d S y|�|�}W n` ttfk rb |�� }| �|| j||||� Y n6 tk r� } z|� |� W d d }~X Y n X |� |� d S )N) rw r � recv_intorD rC r9 rv r� r_ r� r� )r$ r} r� r r� �nbytesr r\ r r r r� � s z%BaseSelectorEventLoop._sock_recv_intoc � sT t |� | jr"|�� dkr"td��| �� }|r@| �|d ||� n |�d � |I d H S )Nr z the socket must be non-blocking)r rI rz rc r^ � _sock_sendallr� )r$ r r@ r} r r r � sock_sendall� s z"BaseSelectorEventLoop.sock_sendallc C s� |d k r| � |� |�� r d S y|�|�}W nF ttfk rH d}Y n, tk rr } z|�|� d S d }~X Y nX |t|�kr�|�d � n.|r�||d � }|� � }| � || j ||||� d S )Nr ) ry r rG rD rC r_ r� �lenr� r9 rx r� )r$ r} r� r r@ r| r\ r r r r r� � s" z#BaseSelectorEventLoop._sock_sendallc � s� t |� | jr"|�� dkr"td��ttd�r8|jtjkrf| j||j|j | d�I d H }|d \}}}}}| � � }| � |||� |I d H S )Nr z the socket must be non-blocking�AF_UNIX)�family�proto�loop) r rI rz rc �hasattrr< r� r� Z_ensure_resolvedr� r^ � _sock_connect)r$ r r1 ZresolvedrY r} r r r � sock_connect� s z"BaseSelectorEventLoop.sock_connectc C s� |� � }y|�|� W nj ttfk rV |�t�| j|�� | �|| j |||� Y n6 t k r� } z|� |� W d d }~X Y n X |� d � d S )N) r9 ZconnectrD rC Zadd_done_callback� functools�partial�_sock_connect_donerx �_sock_connect_cbr_ r� r� )r$ r} r r1 r r\ r r r r� � s z#BaseSelectorEventLoop._sock_connectc C s | � |� d S )N)ry )r$ r r} r r r r� � s z(BaseSelectorEventLoop._sock_connect_donec C s� |� � r d S y,|�tjtj�}|dkr6t|d|� ���W nB ttfk rP Y n6 tk rz } z|� |� W d d }~X Y n X |� d � d S )Nr zConnect call failed ) r Z getsockoptr< Z SOL_SOCKETZSO_ERRORrH rD rC r_ r� r� )r$ r} r r1 �errr\ r r r r� � s z&BaseSelectorEventLoop._sock_connect_cbc � sB t |� | jr"|�� dkr"td��| �� }| �|d|� |I d H S )Nr z the socket must be non-blockingF)r rI rz rc r^ � _sock_accept)r$ r r} r r r � sock_accept s z!BaseSelectorEventLoop.sock_acceptc C s� |� � }|r| �|� |�� r"d S y|�� \}}|�d� W nV ttfk rh | �|| j|d|� Y n: t k r� } z|� |� W d d }~X Y nX |� ||f� d S )NFT) r9 rw r rT r= rD rC rv r� r_ r� r� )r$ r} Z registeredr r rZ r1 r\ r r r r� s z"BaseSelectorEventLoop._sock_acceptc � sl | j |j= |�� }|�� |�� I d H z | j|j|||dd�I d H S |�� |rZ|�� || j |j< X d S )NF)�fallback) r# �_sock_fd� is_reading� pause_reading�_make_empty_waiterZ sock_sendfile�_sock�_reset_empty_waiter�resume_reading)r$ Ztransp�file�offset�countr� r r r �_sendfile_native s z&BaseSelectorEventLoop._sendfile_nativec C s� x~|D ]v\}}|j |j }\}}|tj@ rN|d k rN|jrD| �|� n | �|� |tj@ r|d k r|jrr| �|� q| �|� qW d S )N) �fileobjr@ r ri Z _cancelledr7 Z _add_callbackrs ru )r$ Z event_listr ro r� rp rq r r r �_process_events- s z%BaseSelectorEventLoop._process_eventsc C s | � |�� � |�� d S )N)r7 r9 r6 )r$ r r r r � _stop_serving; s z#BaseSelectorEventLoop._stop_serving)N)N)N)NNN)+r � __module__� __qualname__r r* r ZSSL_HANDSHAKE_TIMEOUTr/ r2 r6 r5 r! rA r? rJ rO rL rX re r> r7 rt ru rv rw rx ry r~ r{ r� r� r� r� r� r� r� r� r� r� r� r� r� � __classcell__r r )r r r / sX +$ r c s� e Zd ZdZeZdZd � fdd� Zdd� Zdd� Z d d � Z d d � Z d d� Z dd� Z dd� Zd dd�Zdd� Zdd� Zdd� Zd d � Z� ZS ) �_SelectorTransporti Nc s� t � �||� || jd< y|�� | jd< W n tk rH d | jd< Y nX d| jkr�y|�� | jd< W n tjk r� d | jd< Y nX || _|� � | _ d| _ | � |� || _ | �� | _d| _d| _| j d k r�| j �� | |j| j < d S )Nr< ZsocknamerR Fr )r r �_extraZ getsocknamerH Z getpeernamer< �errorr� r9 r� �_protocol_connected� set_protocol�_server�_buffer_factory�_buffer� _conn_lost�_closingZ_attachr# )r$ r� r r( r% r& )r r r r L s, z_SelectorTransport.__init__c C s� | j jg}| jd kr |�d� n| jr0|�d� |�d| j� �� | jd k r�| j�� s�t| jj | jt j �}|rz|�d� n |�d� t| jj | jt j �}|r�d}nd}| � � }|�d|� d |� d �� d �d �|��S ) N�closed�closingzfd=z read=pollingz read=idle�pollingZidlezwrite=<z , bufsize=�>z<{}>� )r r r� �appendr� r� �_loopr4 r r r ri rs �get_write_buffer_size�format�join)r$ �infor� �state�bufsizer r r �__repr__f s* z_SelectorTransport.__repr__c C s | � d � d S )N)� _force_close)r$ r r r �abort� s z_SelectorTransport.abortc C s || _ d| _d S )NT)� _protocolr� )r$ r( r r r r� � s z _SelectorTransport.set_protocolc C s | j S )N)r� )r$ r r r � get_protocol� s z _SelectorTransport.get_protocolc C s | j S )N)r� )r$ r r r rd � s z _SelectorTransport.is_closingc C sT | j r d S d| _ | j�| j� | jsP| jd7 _| j�| j� | j�| jd � d S )NTr ) r� r� r7 r� r� r� ru � call_soon�_call_connection_lost)r$ r r r r6 � s z_SelectorTransport.closec C s. | j d k r*tjd| ��t| d� | j �� d S )Nzunclosed transport )�source)r� �warnings�warn�ResourceWarningr6 )r$ r r r �__del__� s z_SelectorTransport.__del__�Fatal error on transportc C sN t |t�r(| j�� r@tjd| |dd� n| j�||| | jd�� | �|� d S )Nz%r: %sT)rF )rP rQ r] r( ) r rH r� � get_debugr r rW r� r� )r$ r\ rP r r r � _fatal_error� s z _SelectorTransport._fatal_errorc C sd | j r d S | jr(| j�� | j�| j� | jsBd| _| j�| j� | j d7 _ | j�| j |� d S )NTr ) r� r� �clearr� ru r� r� r7 r� r� )r$ r\ r r r r� � s z _SelectorTransport._force_closec C sV z| j r| j�|� W d | j�� d | _d | _d | _| j}|d k rP|�� d | _X d S )N)r� r� Zconnection_lostr� r6 r� r� Z_detach)r$ r\ r& r r r r� � s z(_SelectorTransport._call_connection_lostc C s t | j�S )N)r� r� )r$ r r r r� � s z(_SelectorTransport.get_write_buffer_sizec G s" | j r d S | jj||f|�� d S )N)r� r� r> )r$ r rl rm r r r r> � s z _SelectorTransport._add_reader)NN)r� )r r� r� �max_size� bytearrayr� r� r r� r� r� r� rd r6 r� r� r� r� r� r> r� r r )r r r� @ s r� c s� e Zd ZdZejjZd#� fdd� Z� fdd�Z dd� Z d d � Z d d � Z d d� Z dd� Zdd� Zdd� Zdd� Zdd� Zdd� Zdd � Z� fd d �Zd d � Zd!d"� Z� ZS )$r' TNc s~ d | _ t� �|||||� d| _d| _d | _t�| j� | j � | j j | � | j � | j | j| j� |d k rz| j � tj|d � d S )NF)�_read_ready_cbr r �_eof�_paused� _empty_waiterr Z _set_nodelayr� r� r� r� �connection_mader> r� � _read_readyr � _set_result_unless_cancelled)r$ r� r r( r) r% r& )r r r r � s z!_SelectorSocketTransport.__init__c s. t |tj�r| j| _n| j| _t� �|� d S )N)r r ZBufferedProtocol�_read_ready__get_bufferr� �_read_ready__data_receivedr r� )r$ r( )r r r r� � s z%_SelectorSocketTransport.set_protocolc C s | j o| j S )N)r� r� )r$ r r r r� � s z#_SelectorSocketTransport.is_readingc C s> | j s | jrd S d| _| j�| j� | j�� r:t�d| � d S )NTz%r pauses reading)r� r� r� r7 r� r� r r )r$ r r r r� � s z&_SelectorSocketTransport.pause_readingc C s@ | j s | jsd S d| _| �| j| j� | j�� r<t�d| � d S )NFz%r resumes reading) r� r� r> r� r� r� r� r r )r$ r r r r� s z'_SelectorSocketTransport.resume_readingc C s | � � d S )N)r� )r$ r r r r� s z$_SelectorSocketTransport._read_readyc C s | j r d S y | j�d�}t|�s(td��W n. tk rX } z| �|d� d S d }~X Y nX y| j�|�}W nD t t fk r� d S tk r� } z| �|d� d S d }~X Y nX |s�| � � d S y| j� |� W n0 tk �r } z| �|d� W d d }~X Y nX d S )N���z%get_buffer() returned an empty bufferz/Fatal error: protocol.get_buffer() call failed.z$Fatal read error on socket transportz3Fatal error: protocol.buffer_updated() call failed.) r� r� Z get_bufferr� r3 r_ r� r� r� rD rC �_read_ready__on_eofZbuffer_updated)r$ r� r\ r� r r r r� s2 z0_SelectorSocketTransport._read_ready__get_bufferc C s� | j r d S y| j�| j�}W nD ttfk r4 d S tk r` } z| �|d� d S d }~X Y nX |sr| �� d S y| j � |� W n. tk r� } z| �|d� W d d }~X Y nX d S )Nz$Fatal read error on socket transportz2Fatal error: protocol.data_received() call failed.) r� r� rB r� rD rC r_ r� r� r� Z data_received)r$ r@ r\ r r r r� * s" z3_SelectorSocketTransport._read_ready__data_receivedc C st | j �� rt�d| � y| j�� }W n. tk rR } z| �|d� d S d }~X Y nX |rh| j �| j � n| � � d S )Nz%r received EOFz1Fatal error: protocol.eof_received() call failed.) r� r� r r r� Z eof_receivedr_ r� r7 r� r6 )r$ Z keep_openr\ r r r r� ? s z,_SelectorSocketTransport._read_ready__on_eofc C s t |tttf�s$tdt|�j����| jr2td��| j d k rDtd��|sLd S | j rz| j t j krht �d� | j d7 _ d S | j� s�y| j�|�}W nD ttfk r� Y nB tk r� } z| �|d� d S d }~X Y nX ||d � }|s�d S | j�| j| j� | j�|� | �� d S )Nz/data argument must be a bytes-like object, not z%Cannot call write() after write_eof()z(unable to write; sendfile is in progressz socket.send() raised exception.r z%Fatal write error on socket transport) r �bytesr� � memoryviewr �typer r� r3 r� r� r �!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� r� rG rD rC r_ r� r� rt r� � _write_ready�extend�_maybe_pause_protocol)r$ r@ r| r\ r r r �writeR s6 z _SelectorSocketTransport.writec C s� | j r d S y| j�| j�}W nr ttfk r4 Y n� tk r� } z>| j�| j � | j� � | � |d� | j d k r~| j � |� W d d }~X Y njX |r�| jd |�= | �� | js�| j�| j � | j d k r�| j �d � | jr�| �d � n| jr�| j�tj� d S )Nz%Fatal write error on socket transport)r� r� rG r� rD rC r_ r� ru r� r� r� r� r� �_maybe_resume_protocolr� r� r� r� �shutdownr< �SHUT_WR)r$ r| r\ r r r r� w s. z%_SelectorSocketTransport._write_readyc C s. | j s | jrd S d| _| js*| j�tj� d S )NT)r� r� r� r� r� r< r� )r$ r r r � write_eof� s z"_SelectorSocketTransport.write_eofc C s dS )NTr )r$ r r r � can_write_eof� s z&_SelectorSocketTransport.can_write_eofc s* t � �|� | jd k r&| j�td�� d S )Nz Connection is closed by peer)r r� r� r� �ConnectionError)r$ r\ )r r r r� � s z._SelectorSocketTransport._call_connection_lostc C s6 | j d k rtd��| j�� | _ | js0| j �d � | j S )NzEmpty waiter is already set)r� r3 r� r^ r� r� )r$ r r r r� � s z+_SelectorSocketTransport._make_empty_waiterc C s d | _ d S )N)r� )r$ r r r r� � s z,_SelectorSocketTransport._reset_empty_waiter)NNN)r r� r� Z_start_tls_compatibler Z _SendfileModeZ TRY_NATIVEZ_sendfile_compatibler r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r )r r r' � s& % r' c sF e Zd ZejZd � fdd� Zdd� Zdd� Zd dd �Z d d � Z � Z S )r0 Nc s^ t � �||||� || _| j�| jj| � | j�| j| j| j � |d k rZ| j�t j |d � d S )N) r r �_addressr� r� r� r� r> r� r� r r� )r$ r� r r( r1 r) r% )r r r r � s z#_SelectorDatagramTransport.__init__c C s t dd� | jD ��S )Nc s s | ]\}}t |�V qd S )N)r� )�.0r@ rY r r r � <genexpr>� s zC_SelectorDatagramTransport.get_write_buffer_size.<locals>.<genexpr>)�sumr� )r$ r r r r� � s z0_SelectorDatagramTransport.get_write_buffer_sizec C s� | j r d S y| j�| j�\}}W np ttfk r8 Y nh tk rd } z| j�|� W d d }~X Y n< t k r� } z| � |d� W d d }~X Y nX | j� ||� d S )Nz&Fatal read error on datagram transport) r� r� Zrecvfromr� rD rC rH r� �error_receivedr_ r� Zdatagram_received)r$ r@ r[ r\ r r r r� � s z&_SelectorDatagramTransport._read_readyc C sd t |tttf�s$tdt|�j����|s,d S | jrV|d | jfkrPtd| j� ���| j}| j r�| jr�| j t j krxt � d� | j d7 _ d S | j�sDy*| jd r�| j�|� n| j�||� d S ttfk r� | j�| j| j� Y n^ tk �r } z| j�|� d S d }~X Y n0 t k �rB } z| � |d� d S d }~X Y nX | j� t|�|f� | � � d S )Nz/data argument must be a bytes-like object, not z!Invalid address: must be None or z socket.send() raised exception.r rR z'Fatal write error on datagram transport) r r� r� r� r r� r r� rc r� r r� r r� r� r� r� rG �sendtorD rC r� rt r� � _sendto_readyrH r� r� r_ r� r� r� )r$ r@ r[ r\ r r r r� � s> z!_SelectorDatagramTransport.sendtoc C s� x�| j r�| j �� \}}y*| jd r0| j�|� n| j�||� W q ttfk rj | j �||f� P Y q t k r� } z| j � |� d S d }~X Y q t k r� } z| � |d� d S d }~X Y qX qW | �� | j s�| j�| j� | jr�| �d � d S )NrR z'Fatal write error on datagram transport)r� �popleftr� r� rG r� rD rC � appendleftrH r� r� r_ r� r� r� ru r� r� r� )r$ r@ r[ r\ r r r r� � s* z(_SelectorDatagramTransport._sendto_ready)NNN)N) r r� r� � collections�dequer� r r� r� r� r� r� r r )r r r0 � s )r0 ) �__all__r� rV r� r r< r� r" r � ImportError� r r r r r r r �logr r r Z BaseEventLoopr Z_FlowControlMixinZ Transportr� r' r0 r r r r �<module> s@ _
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