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selector_events.cpython-36.opt-2.pyc
3 \�� � @ s8 d gZ ddlZddlZddlZddlZddlZddlZy ddlZW n ek rZ dZY nX ddl m Z ddl m Z ddl m Z ddl m Z ddl mZ dd l mZ dd l mZ dd l mZ dd lmZ dd lmZ dd� ZG dd � d e j�ZG dd� dejej�ZG dd� de�Z G dd� de�Z G dd� de�Z dS )�BaseSelectorEventLoop� N� )� base_events)�compat)� constants)�events)�futures)� selectors)� transports)�sslproto)� coroutine)�loggerc C s6 y| j |�}W n tk r" dS X t|j|@ �S d S )NF)�get_key�KeyError�boolr )�selector�fdZevent�key� r �//usr/lib64/python3.6/asyncio/selector_events.py�_test_selector_event s r c sn e Zd ZdN� fdd� ZdOddd�dd�ZdPddddd�d d �Zddddd�d d �ZdQd d�Z� fdd�Zdd� Z dd� Z dd� Z dd� Z dd� Z dd � ZdRd d �ZdSd d!�ZedTd"d#��Zd$d%� Zd&d'� Zd(d)� Zd*d+� Zd,d-� Zd.d/� Zd0d1� Zd2d3� Zd4d5� Zd6d7� Z d8d9� Z d:d;� Z d<d=� Z ed>d?� �Z d@dA� Z!dBdC� Z"dDdE� Z#dFdG� Z$dHdI� Z%dJdK� Z&dLdM� Z'� Z(S )Ur Nc sF t � j� |d krtj� }tjd|jj� || _| j � t j � | _ d S )NzUsing selector: %s) �super�__init__r ZDefaultSelectorr �debug� __class__�__name__� _selector�_make_self_pipe�weakref�WeakValueDictionary� _transports)�selfr )r r r r 1 s z BaseSelectorEventLoop.__init__)�extra�serverc C s t | |||||�S )N)�_SelectorSocketTransport)r! �sock�protocol�waiterr" r# r r r �_make_socket_transport; s z,BaseSelectorEventLoop._make_socket_transportF)� server_side�server_hostnamer" r# c C sN t j� s"| j||||||||d�S t j| |||||�} t| || ||d� | jS )N)r) r* r" r# )r" r# )r Z_is_sslproto_available�_make_legacy_ssl_transportZ SSLProtocolr$ Z_app_transport) r! �rawsockr& � sslcontextr' r) r* r" r# Z ssl_protocolr r r �_make_ssl_transport@ s z)BaseSelectorEventLoop._make_ssl_transportc C s t | ||||||||� S )N)�_SelectorSslTransport) r! r, r& r- r' r) r* r" r# r r r r+ O s z0BaseSelectorEventLoop._make_legacy_ssl_transportc C s t | |||||�S )N)�_SelectorDatagramTransport)r! r% r& �addressr' r" r r r �_make_datagram_transportY s z.BaseSelectorEventLoop._make_datagram_transportc sL | j � rtd��| j� r d S | j� t� j� | jd k rH| jj� 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 ^ s zBaseSelectorEventLoop.closec C s t �d S )N)�NotImplementedError)r! r r r � _socketpairi s z!BaseSelectorEventLoop._socketpairc C sB | j | jj� � | jj� d | _| jj� d | _| jd8 _d S )Nr )�_remove_reader�_ssock�filenor6 �_csock� _internal_fds)r! r r r r5 l s z&BaseSelectorEventLoop._close_self_pipec C sN | j � \| _| _| jjd� | jjd� | jd7 _| j| jj� | j� d S )NFr )r8 r: r< � setblockingr= � _add_readerr; �_read_from_self)r! r r r r t s z%BaseSelectorEventLoop._make_self_pipec C s d S )Nr )r! �datar r r �_process_self_data| s z(BaseSelectorEventLoop._process_self_datac C sV xPy | j jd�}|sP | j|� W q tk r8 wY q tk rL P Y qX qW d S )Ni )r: �recvrB �InterruptedError�BlockingIOError)r! rA r r r r@ s z%BaseSelectorEventLoop._read_from_selfc C sJ | j }|d k rFy|jd� 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$BaseSelectorEventLoop._write_to_self�d c C s | j |j� | j|||||� d S )N)r? r; �_accept_connection)r! �protocol_factoryr% r- r# �backlogr r r �_start_serving� s z$BaseSelectorEventLoop._start_servingc C s� x�t |�D ]�}y0|j� \}}| jr2tjd|||� |jd� W n� tttfk rX d S t k r� } z^| j t j t j t j t jfkr�| jd| |d�� | j|j� � | jtj| j|||||� n� W Y d d } ~ X q X d|i} | j||| ||�} | j| � q W d S )Nz#%r got a new connection from %r: %rFz&socket.accept() out of system resource)�message� exception�socket�peername)�range�acceptrJ r r r> rE rD �ConnectionAbortedErrorrI �errnoZEMFILEZENFILEZENOBUFSZENOMEM�call_exception_handlerr9 r; Z call_laterr ZACCEPT_RETRY_DELAYrP �_accept_connection2Z create_task) r! rN r% r- r# rO �_�conn�addr�excr" rV r r r rM � s4 z(BaseSelectorEventLoop._accept_connectionc c s� d }d }yj|� }| j � }|r6| j||||d||d�}n| j|||||d�}y|E d H W n |j� � Y nX W n\ tk r� } z@| jr�d| d�} |d k r�|| d< |d k r�|| d< | j| � W Y d d } ~ X nX d S )NT)r' r) r" r# )r' r" r# z3Error on transport creation for incoming connection)rQ rR r& � transport)� create_futurer. r( r6 � ExceptionrJ rY ) r! rN r\ r" r- r# r& r_ r' r^ �contextr r r rZ � s4 z)BaseSelectorEventLoop._accept_connection2c C s@ y| j | }W n tk r" Y nX |j� s<tdj||���d S )Nz.File descriptor {!r} is used by transport {!r})r r � is_closingr3 �format)r! r r_ r r r �_ensure_fd_no_transport� s z-BaseSelectorEventLoop._ensure_fd_no_transportc G s� | j � tj||| �}y| jj|�}W n* tk rP | jj|tj|d f� Y n>X |j|j }\}}| jj ||tjB ||f� |d k r�|j � d S )N) � _check_closedr �Handler r r �registerr � EVENT_READrA �modify�cancel) r! r �callback�args�handler �mask�reader�writerr r r r? � s z!BaseSelectorEventLoop._add_readerc C s� | j � r dS y| jj|�}W n tk r0 dS X |j|j }\}}|tj M }|sb| jj|� n| jj ||d |f� |d k r�|j � dS dS d S )NFT) r4 r r r r rA r ri � unregisterrj rk )r! r r ro rp rq r r r r9 s z$BaseSelectorEventLoop._remove_readerc G s� | j � tj||| �}y| jj|�}W n* tk rP | jj|tjd |f� Y n>X |j|j }\}}| jj ||tjB ||f� |d k r�|j � d S )N) rf r rg r r r rh r � EVENT_WRITErA rj rk ) r! r rl rm rn r ro rp rq r r r � _add_writer s z!BaseSelectorEventLoop._add_writerc C s� | j � r dS y| jj|�}W n tk r0 dS X |j|j }\}}|tj M }|sb| jj|� n| jj |||d f� |d k r�|j � dS dS d S )NFT) r4 r r r r rA r rs rr rj rk )r! r r ro rp rq r r r �_remove_writer, s z$BaseSelectorEventLoop._remove_writerc G s | j |� | j||f|�� S )N)re r? )r! r rl rm r r r � add_readerC s z BaseSelectorEventLoop.add_readerc C s | j |� | j|�S )N)re r9 )r! r r r r � remove_readerH s z#BaseSelectorEventLoop.remove_readerc G s | j |� | j||f|�� S )N)re rt )r! r rl rm r r r � add_writerM s z BaseSelectorEventLoop.add_writerc C s | j |� | j|�S )N)re ru )r! r r r r � remove_writerR s z#BaseSelectorEventLoop.remove_writerc C s6 | j r|j� dkrtd��| j� }| j|d ||� |S )Nr z the socket must be non-blocking)rJ � gettimeout� ValueErrorr` � _sock_recv)r! r% �n�futr r r � sock_recvW s z BaseSelectorEventLoop.sock_recvc C s� |d k r| j |� |j� r d S y|j|�}W n` ttfk rb |j� }| j|| j||||� Y n6 tk r� } z|j |� W Y d d }~X n X |j |� d S )N) rw � cancelledrC rE rD r; rv r| ra � set_exception� set_result)r! r~ � registered_fdr% r} rA r r^ r r r r| f s z BaseSelectorEventLoop._sock_recvc C sF | j r|j� dkrtd��| j� }|r8| j|d ||� n |jd � |S )Nr z the socket must be non-blocking)rJ rz r{ r` � _sock_sendallr� )r! r% rA r~ r r r � sock_sendall{ s z"BaseSelectorEventLoop.sock_sendallc C s� |d k r| j |� |j� r d S y|j|�}W nD ttfk rH d}Y n* tk rp } z|j|� d S d }~X nX |t|�kr�|jd � n.|r�||d � }|j � }| j || j ||||� d S )Nr ) ry r� rH rE rD ra r� �lenr� r; rx r� )r! r~ r� r% rA r} r^ r r r r r� � s" z#BaseSelectorEventLoop._sock_sendallc c s� | j r|j� dkrtd��ttd� s2|jtjkrptj||j|j | d�}|j � sZ|E d H |j � d \}}}}}| j � }| j |||� |E d H S )Nr z the socket must be non-blocking�AF_UNIX)�family�proto�loop)rJ rz r{ �hasattrrS r� r� r Z_ensure_resolvedr� �done�resultr` � _sock_connect)r! r% r1 Zresolvedr[ r~ r r r � sock_connect� s z"BaseSelectorEventLoop.sock_connectc C s� |j � }y|j|� W nj ttfk rV |jtj| j|�� | j|| j |||� Y n6 t k r� } z|j |� W Y d d }~X n X |j d � d S )N) r; ZconnectrE rD Zadd_done_callback� functools�partial�_sock_connect_donerx �_sock_connect_cbra r� r� )r! r~ r% r1 r r^ r r r r� � s z#BaseSelectorEventLoop._sock_connectc C s | j |� d S )N)ry )r! r r~ r r r r� � s z(BaseSelectorEventLoop._sock_connect_donec C s� |j � r d S y,|jtjtj�}|dkr6t|d|f ��W nB ttfk rP Y n6 tk rz } z|j |� W Y d d }~X n X |j d � d S )Nr zConnect call failed %s) r� Z getsockoptrS Z SOL_SOCKETZSO_ERRORrI rE rD ra r� r� )r! r~ r% r1 �errr^ r r r r� � s z&BaseSelectorEventLoop._sock_connect_cbc C s4 | j r|j� dkrtd��| j� }| j|d|� |S )Nr z the socket must be non-blockingF)rJ rz r{ r` � _sock_accept)r! r% r~ r r r � sock_accept� s z!BaseSelectorEventLoop.sock_acceptc C s� |j � }|r| j|� |j� r"d S y|j� \}}|jd� W nV ttfk rh | j|| j|d|� Y n: t k r� } z|j |� W Y d d }~X nX |j ||f� d S )NFT) r; rw r� rV r> rE rD rv r� ra r� r� )r! r~ Z registeredr% r r\ r1 r^ r r r r� � s z"BaseSelectorEventLoop._sock_acceptc C s� x~|D ]v\}}|j |j }\}}|tj@ rN|d k rN|jrD| j|� n | j|� |tj@ r|d k r|jrr| j|� q| j|� qW d S )N) �fileobjrA r ri Z _cancelledr9 Z _add_callbackrs ru )r! Z event_listr ro r� rp rq r r r �_process_events� s z%BaseSelectorEventLoop._process_eventsc C s | j |j� � |j� d S )N)r9 r; r6 )r! r% r r r � _stop_serving s z#BaseSelectorEventLoop._stop_serving)N)N)N)NNN)NNrL )NNrL )NN))r � __module__� __qualname__r r( r. r+ r2 r6 r8 r5 r rB r@ rK rP rM r rZ re r? r9 rt ru rv rw rx ry r r| r� r� r� r� r� r� r� r� r� r� � __classcell__r r )r r r + sR ( # c s� e Zd Zd ZeZdZd � fdd� Zdd� Zdd � Z d d � Z d d � Z dd� Z dd� Z ejr`dd� Zd!dd�Zdd� Zdd� Zdd � Zd d � Z� ZS )"�_SelectorTransport� i Nc s� t � j||� || jd< |j� | jd< d| jkrdy|j� | jd< W n tjk rb d | jd< Y nX || _|j� | _ || _ d| _ || _ | j � | _d| _d| _| j d k r�| j j� | |j| j < d S )NrS ZsocknamerT Tr F)r r �_extraZ getsocknameZ getpeernamerS �error�_sockr; �_sock_fd� _protocol�_protocol_connected�_server�_buffer_factory�_buffer� _conn_lost�_closingZ_attachr )r! r� r% r& r" r# )r r r r s& z_SelectorTransport.__init__c C s� | j jg}| jd kr |jd� n| jr0|jd� |jd| j � | jd k r�| jj� r�t| jj | jt j �}|rz|jd� n |jd� t| jj | jt j �}|r�d}nd}| j � }|jd||f � d d j|� S ) N�closed�closingzfd=%sz read=pollingz read=idle�pollingZidlezwrite=<%s, bufsize=%s>z<%s>� )r r r� �appendr� r� �_loopr4 r r r ri rs �get_write_buffer_size�join)r! �infor� �state�bufsizer r r �__repr__2 s* z_SelectorTransport.__repr__c C s | j d � d S )N)� _force_close)r! r r r �abortN s z_SelectorTransport.abortc C s || _ d S )N)r� )r! r& r r r � set_protocolQ s z _SelectorTransport.set_protocolc C s | j S )N)r� )r! r r r � get_protocolT s z _SelectorTransport.get_protocolc C s | j S )N)r� )r! r r r rc W s z _SelectorTransport.is_closingc C sT | j r d S d| _ | jj| j� | jsP| jd7 _| jj| j� | jj| jd � d S )NTr ) r� r� r9 r� r� r� ru � call_soon�_call_connection_lost)r! r r r r6 Z s z_SelectorTransport.closec C s, | j d k r(tjd| t| d� | j j� d S )Nzunclosed transport %r)�source)r� �warnings�warn�ResourceWarningr6 )r! r r r �__del__h s z_SelectorTransport.__del__�Fatal error on transportc C sP t |tj�r*| jj� rBtjd| |dd� n| jj||| | jd�� | j |� d S )Nz%r: %sT)rG )rQ rR r_ r& ) � isinstancer Z_FATAL_ERROR_IGNOREr� � get_debugr r rY r� r� )r! r^ rQ r r r � _fatal_errorn s z _SelectorTransport._fatal_errorc C sd | j r d S | jr(| jj� | jj| j� | jsBd| _| jj| j� | j d7 _ | jj| j |� d S )NTr ) r� r� �clearr� ru r� r� r9 r� r� )r! r^ r r r r� | s z _SelectorTransport._force_closec C sV z| j r| jj|� W d | jj� d | _d | _d | _| j}|d k rP|j� 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_readeri )NN)r� )r r� r� �max_size� bytearrayr� r� r r� r� r� r� rc r6 r ZPY34r� r� r� r� r� r? r� r r )r r r� s" r� c sV e Zd Zd� fdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z � Z S )r$ Nc sr t � j|||||� d| _d| _tj| j� | jj| j j | � | jj| j | j | j � |d k rn| jjtj|d � d S )NF)r r �_eof�_pausedr 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 C s> | j s | jrd S d| _| jj| j� | jj� r:tjd| � d S )NTz%r pauses reading)r� r� r� r9 r� r� r r )r! r r r � pause_reading� s z&_SelectorSocketTransport.pause_readingc C sB | j s| j rd S d| _| j| j| j� | jj� r>tjd| � d S )NFz%r resumes reading) r� r� r? r� r� r� r� r r )r! r r r �resume_reading� s z'_SelectorSocketTransport.resume_readingc C s� | j r d S y| jj| j�}W nD ttfk r4 Y n| tk r` } z| j|d� W Y d d }~X nPX |rt| jj |� n<| j j � r�t j d| � | jj� }|r�| j j| j� n| j� d S )Nz$Fatal read error on socket transportz%r received EOF)r� r� rC r� rE rD ra r� r� � data_receivedr� r� r r � eof_receivedr9 r� r6 )r! rA r^ � keep_openr r r r� � s z$_SelectorSocketTransport._read_readyc C s� t |tttf�s"tdt|�j ��| jr0td��|s8d S | j rf| j t j krTt j d� | j d7 _ d S | js�y| jj|�}W nB ttfk r� Y n@ tk r� } z| j|d� d S d }~X nX ||d � }|s�d S | jj| j| j� | jj|� | j� d S )Nz1data argument must be a bytes-like object, not %rz%Cannot call write() after write_eof()z socket.send() raised exception.r z%Fatal write error on socket transport)r� �bytesr� � memoryview� TypeError�typer r� r3 r� r �!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� r� rH rE rD ra r� r� rt r� � _write_ready�extend�_maybe_pause_protocol)r! rA r} r^ r r r �write� s4 z _SelectorSocketTransport.writec C s� | j r d S y| jj| j�}W n\ ttfk r4 Y n� tk rx } z*| jj| j � | jj � | j |d� W Y d d }~X nTX |r�| jd |�= | j � | js�| jj| j � | j r�| jd � n| jr�| jjtj� d S )Nz%Fatal write error on socket transport)r� r� rH r� rE rD ra r� ru r� r� r� �_maybe_resume_protocolr� r� r� �shutdownrS �SHUT_WR)r! r} r^ r r r r� s& z%_SelectorSocketTransport._write_readyc C s. | j s | jrd S d| _| js*| jjtj� d S )NT)r� r� r� r� r� rS 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_eof)NNN) r r� r� r r� r� r� r� r� r� r� r� r r )r r r$ � s #r$ c sd e Zd ZeZd� fdd� Zddd�Zdd� Zd d � Zd d � Z d d� Z dd� Z dd� Z dd� Z � ZS )r/ NFc s� t d krtd��|s tj||�}|dd�} |r<| r<|| d< |j|f| �} t� j|| ||| � d| _|| _|| _ || _ d| _ | j j |d� | jj� r�tjd| � | jj� } nd } | j| � d S )Nz stdlib ssl module not availableF)r) Zdo_handshake_on_connectr* )r- z%r starts SSL handshake)�sslr3 r Z_create_transport_contextZ wrap_socketr r r� �_server_hostname�_waiter� _sslcontextr� r� �updater� r� r r �time� _on_handshake) r! r� r, r& r- r' r) r* r" r# Z wrap_kwargsZsslsock� start_time)r r r r ( s* z _SelectorSslTransport.__init__c C sD | j d krd S | j j� s:|d k r.| j j|� n | j jd � d | _ d S )N)r� r� r� r� )r! r^ r r r �_wakeup_waiterL s z$_SelectorSslTransport._wakeup_waiterc " C s$ y| j j� W n� tjk r8 | jj| j| j|� d S tjk r` | jj | j| j|� d S t k r� } z`| jj � r�t j d| dd� | jj| j� | jj| j� | j j� | j|� t|t�r�d S � W Y d d }~X nX | jj| j� | jj| j� | j j� }t| jd��s�| j�r�| jjtjk�r�ytj|| j� W nR tk �r� } z4| jj � �rjt j d| dd� | j j� | j|� d S d }~X nX | jj || j j � | j j � | j d� d| _ d| _ | jj| j| j!� d| _"| jj#| j$j%| � | jj#| j� | jj � �r | jj&� | }t j'd| |d � d S ) Nz%r: SSL handshake failedT)rG Zcheck_hostnamez1%r: SSL handshake failed on matching the hostname)�peercert�cipher� compressionZ ssl_objectFz %r: SSL handshake took %.1f msg @�@)(r� Z do_handshaker� �SSLWantReadErrorr� r? r� r� �SSLWantWriteErrorrt � BaseExceptionr� r r� r9 ru r6 r� r� ra Z getpeercertr� r� r� Z verify_modeZ CERT_NONEZmatch_hostnamer� r� r� r� �_read_wants_write�_write_wants_readr� r� r� r� r� r� r )r! r� r^ r� Zdtr r r r� V sb z#_SelectorSslTransport._on_handshakec C sJ | j rtd��| jr td��d| _| jj| j� | jj� rFtjd| � d S )Nz#Cannot pause_reading() when closingzAlready pausedTz%r pauses reading) r� r3 r� r� r9 r� r� r r )r! r r r r� � s z#_SelectorSslTransport.pause_readingc C sJ | j std��d| _ | jr d S | jj| j| j� | jj� rFtj d| � d S )Nz Not pausedFz%r resumes reading) r� r3 r� r� r? r� r� r� r r )r! r r r r� � s z$_SelectorSslTransport.resume_readingc C s" | j r d S | jr6d| _| j� | jr6| jj| j| j� y| jj| j �}W n� t t t j fk rd Y n� t jk r� d| _| jj| j� | jj| j| j� Y n� tk r� } z| j|d� W Y d d }~X nTX |r�| jj|� n@z4| jj� r�tjd| � | jj� }|�rtjd� W d | j� X d S )NFTz!Fatal read error on SSL transportz%r received EOFz?returning true from eof_received() has no effect when using ssl)r� r� r� r� r� rt r� r� rC r� rE rD r� r� r� r� r9 ra r� r� r� r� r r r� r� r6 )r! rA r^ r� r r r r� � s4 z!_SelectorSslTransport._read_readyc C s( | j r d S | jr<d| _| j� | jp(| js<| jj| j| j� | jr�y| j j | j�}W n� t t t jfk rt d}Y np t jk r� d}| jj| j� d| _Y nD tk r� } z(| jj| j� | jj� | j|d� d S d }~X nX |r�| jd |�= | j� | j�s$| jj| j� | j�r$| jd � d S )NFr Tz"Fatal write error on SSL transport)r� r� r� r� r� r� r? r� r� r� rH rE rD r� r� r� ru r� ra r� r� r� r� )r! r} r^ r r r r� � s8 z"_SelectorSslTransport._write_readyc C s� t |tttf�s"tdt|�j ��|s*d S | jrX| jtj krFt j d� | jd7 _d S | j sp| j j| j| j� | j j|� | j� d S )Nz1data argument must be a bytes-like object, not %rz socket.send() raised exception.r )r� r� r� r� r� r� r r� r r� r r� r� r� rt r� r� r� r� )r! rA r r r r� � s z_SelectorSslTransport.writec C s dS )NFr )r! r r r r� s z#_SelectorSslTransport.can_write_eof)NFNNN)N)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| jj| � | jj| j| j| j � |d k rZ| jjt 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� )�.0rA r[ 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| jj| j�\}}W np ttfk r8 Y nh tk rd } z| jj|� W Y d d }~X n< t k r� } z| j |d� W Y d d }~X nX | jj ||� d S )Nz&Fatal read error on datagram transport) r� r� Zrecvfromr� rE rD rI r� �error_receivedra r� Zdatagram_received)r! rA r] r^ r r r r� s z&_SelectorDatagramTransport._read_readyc C sT t |tttf�s"tdt|�j ��|s*d S | jrN|d | jfkrNtd| jf ��| j r�| jr�| j t j krpt j d� | j d7 _ d S | j�s4y&| jr�| jj|� n| jj||� d S ttfk r� | jj| j| j� Y nZ tk �r } z| jj|� d S d }~X n. tk �r2 } z| j |d� d S d }~X nX | jj t|�|f� | j � d S )Nz1data argument must be a bytes-like object, not %rz#Invalid address: must be None or %sz socket.send() raised exception.r z'Fatal write error on datagram transport) r� r� r� r� r� r� r r� r{ r� r r� r r� r� r� rH �sendtorE rD r� rt r� � _sendto_readyrI r� r� ra r� r� r� )r! rA r] r^ r r r r� . s< z!_SelectorDatagramTransport.sendtoc C s� x�| j r�| j j� \}}y&| jr,| jj|� n| jj||� W q ttfk rf | j j||f� P Y q t k r� } z| j j |� d S d }~X q t k r� } z| j |d� d S d }~X qX qW | j� | j s�| jj| j� | jr�| jd � d S )Nz'Fatal write error on datagram transport)r� �popleftr� r� rH r� rE rD � appendleftrI r� r� ra r� r� r� ru r� r� r� )r! rA r] r^ r r r r� U 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� rX r� rS r� r r� � ImportError� r r r r r r r r Z coroutinesr �logr r Z BaseEventLoopr Z_FlowControlMixinZ Transportr� r$ r/ r0 r r r r �<module> sB i i
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