AlkantarClanX12
Your IP : 3.148.108.201
U
e5dT� � @ s. d Z dZddlZddlZddlZddlZddlZddlZddlZz ddl Z W n e
k
rd dZ Y nX ddl m Z ddl m
Z
ddl mZ ddl mZ dd l mZ dd
l mZ dd l mZ dd l mZ dd
lmZ dd� Zdd� ZG dd� de j�ZG dd� dejej�Z G dd� de �Z G dd� de �Z dS )z�Event loop using a selector and related classes.
A selector is a "notify-when-ready" multiplexer. For a subclass which
also includes support for signal handling, see the unix_events sub-module.
)�BaseSelectorEventLoop� N� )� base_events)� constants)�events)�futures)� protocols)�sslproto)�
transports)�trsock)�loggerc C s8 z| � |�}W n tk
r$ Y dS X t|j|@ �S d S �NF)�get_key�KeyError�boolr )�selector�fdZevent�key� r �//usr/lib64/python3.8/asyncio/selector_events.py�_test_selector_event s
r c C s t d k r t| t j�r td��d S )Nz"Socket cannot be of type SSLSocket)�ssl�
isinstanceZ SSLSocket� TypeError)�sockr r r �_check_ssl_socket+ s r c s� e Zd ZdZdS� fdd� ZdTddd�dd�ZdUddddejd �d
d �ZdVd d
�Z � fdd�Z
dd� Z dd� Z dd� Z
dd� Zdd� Zdddejfdd �Zdddejfd d �Zddejfd d �Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd/d0� Zd1d2� Zd3d4� Z d5d6� Z d7d8� Z d9d:� Z d;d<� Z d=d>� Z!d?d@� Z"dAdB� Z#dCdD� Z$dEdF� Z%dGdH� Z&dIdJ� Z'dKdL� Z(dMdN� Z)dOdP� Z*dQdR� Z+� Z,S )Wr zJSelector event loop.
See events.EventLoop for API specification.
Nc sF t � �� |d krt�� }t�d|jj� || _| � � t
� � | _ d S )NzUsing selector: %s)
�super�__init__� selectorsZDefaultSelectorr �debug� __class__�__name__� _selector�_make_self_pipe�weakrefZWeakValueDictionary� _transports)�selfr �r r r r 6 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)r2 r( )r Z SSLProtocolr, Z_app_transport) r& Zrawsockr- �
sslcontextr. r0 r1 r) r* r2 Z ssl_protocolr r r �_make_ssl_transportE s � �z)BaseSelectorEventLoop._make_ssl_transportc C s t | |||||�S r+ )�_SelectorDatagramTransport)r& r r- �addressr. r) r r r �_make_datagram_transportR 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 r; W s
zBaseSelectorEventLoop.closec C sB | � | j�� � | j�� d | _| j�� d | _| jd8 _d S )Nr )�_remove_reader�_ssock�filenor; �_csock�
_internal_fdsr< r r r r: b s
z&BaseSelectorEventLoop._close_self_pipec C sN t �� \| _| _| j�d� | j�d� | jd7 _| �| j�� | j� d S )NFr ) �socketZ
socketpairr> r@ � setblockingrA � _add_readerr? �_read_from_selfr< r r r r# j s
z%BaseSelectorEventLoop._make_self_pipec C s d S r+ r �r& �datar r r �_process_self_datar s z(BaseSelectorEventLoop._process_self_datac C sX z"| j �d�}|sW qT| �|� W q tk
r: Y q Y q tk
rP Y qTY q X q d S )Ni )r> �recvrH �InterruptedError�BlockingIOErrorrF r r r rE u s z%BaseSelectorEventLoop._read_from_selfc C sN | j }|d krd S z|�d� W n( tk
rH | jrDtjddd� 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$BaseSelectorEventLoop._write_to_self�d c
C s" | � |�� | j||||||� d S r+ )rD r? �_accept_connection)r& �protocol_factoryr r3 r* �backlogr2 r r r �_start_serving� s �z$BaseSelectorEventLoop._start_servingc
C s t |�D ]�}z0|�� \}} | jr0t�d|| |� |�d� W n� tttfk
rZ Y d S t k
r� }
zd|
j
t
j t
j t
j
t
jfkr�| �d|
t�|�d�� | �|�� � | �tj| j||||||� n� W 5 d }
~
X Y qX d| i} | �||| |||�} | �| � qd S )Nz#%r got a new connection from %r: %rFz&socket.accept() out of system resource)�message� exceptionrB �peername)�range�acceptrQ r r rC rK rJ �ConnectionAbortedErrorrP �errnoZEMFILEZENFILEZENOBUFSZENOMEM�call_exception_handlerr �TransportSocketr= r? Z
call_laterr ZACCEPT_RETRY_DELAYrW �_accept_connection2Z create_task)
r& rU r r3 r* rV r2 �_�conn�addr�excr) r\ r r r rT � sV � �� � �z(BaseSelectorEventLoop._accept_connectionc
� s� d }d }zt|� }| � � } |r8| j|||| d|||d�}n| j||| ||d�}z| I d H W n tk
rx |�� � Y nX W nt ttfk
r� � Y n\ tk
r� }
z>| jr�d|
d�} |d k r�|| d< |d k r�|| d< | �| � W 5 d }
~
X Y nX d S )NT)r. r0 r) r* r2 )r. r) r* z3Error on transport creation for incoming connection)rX rY r- � transport) �
create_futurer4 r/ �
BaseExceptionr; �
SystemExit�KeyboardInterruptrQ r_ ) r& rU rc r) r3 r* r2 r- rf r. re �contextr r r ra � sP � � �z)BaseSelectorEventLoop._accept_connection2c
C s� |}t |t�sJzt|�� �}W n* tttfk
rH td|���d �Y nX z| 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 �intr? �AttributeErrorr �
ValueErrorr% r �
is_closingr8 )r& r r? rf r r r �_ensure_fd_no_transport� s
�z-BaseSelectorEventLoop._ensure_fd_no_transportc G s� | � � t�||| d �}z| j�|�}W n* tk
rR | j�|tj|d f� Y n>X |j|j }\}}| j�
||tjB ||f� |d k r�|� � d S r+ ) �
_check_closedr �Handler" r r �registerr �
EVENT_READrG �modify�cancel� r& r �callback�argsZhandler �mask�reader�writerr r r rD s �
�z!BaseSelectorEventLoop._add_readerc C s� | � � r dS z| j�|�}W n tk
r2 Y dS X |j|j }\}}|tj M }|sd| j�|� n| j� ||d |f� |d k r�|�
� dS dS d S �NFT) r9 r" r r r rG r rt �
unregisterru rv �r& r r rz r{ r| r r r r= s z$BaseSelectorEventLoop._remove_readerc G s� | � � t�||| d �}z| j�|�}W n* tk
rR | j�|tjd |f� Y n>X |j|j }\}}| j�
||tjB ||f� |d k r�|� � d S r+ ) rq r rr r" r r rs r � EVENT_WRITErG ru rv rw r r r � _add_writer% s �
�z!BaseSelectorEventLoop._add_writerc C s� | � � r dS z| j�|�}W n tk
r2 Y dS X |j|j }\}}|tj M }|sd| j�|� n| j� |||df� |dk r�|�
� dS dS dS )�Remove a writer callback.FNT) r9 r" r r r rG r r� r~ ru rv r r r r �_remove_writer4 s z$BaseSelectorEventLoop._remove_writerc G s | � |� | j||f|�� S )zAdd a reader callback.)rp rD �r& r rx ry r r r �
add_readerK s
z BaseSelectorEventLoop.add_readerc C s | � |� | �|�S )zRemove a reader callback.)rp r= �r& r r r r �
remove_readerP s
z#BaseSelectorEventLoop.remove_readerc G s | � |� | j||f|�� S )zAdd a writer callback..)rp r� r� r r r �
add_writerU s
z BaseSelectorEventLoop.add_writerc C s | � |� | �|�S )r� )rp r� r� r r r �
remove_writerZ s
z#BaseSelectorEventLoop.remove_writerc � s� t |� | jr"|�� dkr"td��z |�|�W S ttfk
rF Y nX | �� }|�� }| � || j
|||� |� t �
| j|�� |I dH S )z�Receive data from the socket.
The return value is a bytes object representing the data received.
The maximum amount of data to be received at once is specified by
nbytes.
r � the socket must be non-blockingN)r rQ �
gettimeoutrn rI rK rJ rg r? r� �
_sock_recv�add_done_callback� functools�partial�_sock_read_done)r& r �n�futr r r r � sock_recv_ s �z BaseSelectorEventLoop.sock_recvc C s | � |� d S r+ )r� �r& r r� r r r r� t s z%BaseSelectorEventLoop._sock_read_donec
C s� |� � r d S z|�|�}W n\ ttfk
r4 Y d S ttfk
rL � Y n6 tk
rv } z|�|� W 5 d }~X Y n X |�|� d S r+ ) �donerI rK rJ ri rj rh �
set_exception�
set_result)r& r� r r� rG re r r r r� w s z BaseSelectorEventLoop._sock_recvc � s� t |� | jr"|�� dkr"td��z |�|�W S ttfk
rF Y nX | �� }|�� }| � || j
|||� |� t �
| j|�� |I dH S )z�Receive data from the socket.
The received data is written into *buf* (a writable buffer).
The return value is the number of bytes written.
r r� N)r rQ r� rn � recv_intorK rJ rg r? r� �_sock_recv_intor� r� r� r� )r& r �bufr� r r r r �sock_recv_into� s �z$BaseSelectorEventLoop.sock_recv_intoc
C s� |� � r d S z|�|�}W n\ ttfk
r4 Y d S ttfk
rL � Y n6 tk
rv } z|�|� W 5 d }~X Y n X |�|� d S r+ ) r� r� rK rJ ri rj rh r� r� )r& r� r r� �nbytesre r r r r� � s z%BaseSelectorEventLoop._sock_recv_intoc � s� t |� | jr"|�� dkr"td��z|�|�}W n ttfk
rL d}Y nX |t|�kr^dS | �� }|� � }|�
t � | j
|�� | �|| j||t|�|g� |I dH S )a� Send data to the socket.
The socket must be connected to a remote socket. This method continues
to send data from data until either all data has been sent or an
error occurs. None is returned on success. On error, an exception is
raised, and there is no way to determine how much data, if any, was
successfully processed by the receiving end of the connection.
r r� N)r rQ r� rn rO rK rJ �lenrg r? r� r� r� �_sock_write_doner� �
_sock_sendall�
memoryview)r& r rG r� r� r r r r � sock_sendall� s&
� �z"BaseSelectorEventLoop.sock_sendallc
C s� |� � r d S |d }z|�||d � �}W nb ttfk
rD Y d S ttfk
r\ � Y n2 tk
r� } z|�|� W Y �d S d }~X Y nX ||7 }|t|�kr�|� d � n||d< d S )Nr )
r� rO rK rJ ri rj rh r� r� r� )r& r� r Zview�pos�startr� re r r r r� � s
z#BaseSelectorEventLoop._sock_sendallc � s� t |� | jr"|�� dkr"td��ttd�r8|jtjkrf| j||j|j | d�I dH }|d \}}}}}| �
� }| � |||� |I dH S )zTConnect to a remote socket at address.
This method is a coroutine.
r r� �AF_UNIX)�family�proto�loopN) r rQ r� rn �hasattrrB r� r� Z_ensure_resolvedr� rg �
_sock_connect)r& r r6 Zresolvedrb r� r r r � sock_connect� s � z"BaseSelectorEventLoop.sock_connectc
C s� |� � }z|�|� W n� ttfk
rV |�t�| j|�� | �|| j |||� Y nN t
t fk
rn � Y n6 t k
r� } z|�
|� W 5 d }~X Y n X |�d � d S r+ )r? ZconnectrK rJ r� r� r� r� r� �_sock_connect_cbri rj rh r� r� )r& r� r r6 r re r r r r� � s � z#BaseSelectorEventLoop._sock_connectc C s | � |� d S r+ )r� r� r r r r� s z&BaseSelectorEventLoop._sock_write_donec
C s� |� � r d S z,|�tjtj�}|dkr6t|d|� ���W nZ ttfk
rP Y nN tt fk
rh � Y n6 t
k
r� } z|� |� W 5 d }~X Y n X |� d � d S )Nr zConnect call failed )
r� Z
getsockoptrB Z
SOL_SOCKETZSO_ERRORrP rK rJ ri rj rh r� r� )r& r� r r6 �errre r r r r� s z&BaseSelectorEventLoop._sock_connect_cbc � sB t |� | jr"|�� dkr"td��| �� }| �|d|� |I dH S )aW Accept a connection.
The socket must be bound to an address and listening for connections.
The return value is a pair (conn, address) where conn is a new socket
object usable to send and receive data on the connection, and address
is the address bound to the socket on the other end of the connection.
r r� FN)r rQ r� rn rg � _sock_accept)r& r r� r r r � sock_accept s z!BaseSelectorEventLoop.sock_acceptc
C s� |� � }|r| �|� |�� r"d S z|�� \}}|�d� W nn ttfk
rh | �|| j|d|� Y nR t t
fk
r� � Y n: t k
r� } z|� |� W 5 d }~X Y nX |�
||f� d S r} )r? r� r� r\ rC rK rJ r� r� ri rj rh r� r� )r& r� Z
registeredr r rc r6 re r r r r� * s
z"BaseSelectorEventLoop._sock_acceptc � sp | j |j= |�� }|�� |�� I d H z | j|j|||dd�I d H W �S |�� |r^|�� || j |j< X d S )NF)Zfallback) r% �_sock_fd�
is_reading�
pause_reading�_make_empty_waiter�_reset_empty_waiter�resume_readingZ
sock_sendfile�_sock)r& Ztransp�file�offset�countr� r r r �_sendfile_native< s
�z&BaseSelectorEventLoop._sendfile_nativec C s� |D ]v\}}|j |j }\}}|tj@ rL|d k rL|jrB| �|� n
| �|� |tj@ r|d k r|jrp| �|� q| �|� qd S r+ ) �fileobjrG r rt Z
_cancelledr= Z
_add_callbackr� r� )r& Z
event_listr rz r� r{ r| r r r �_process_eventsJ s
z%BaseSelectorEventLoop._process_eventsc C s | � |�� � |�� d S r+ )r= r? r; )r& r r r r �
_stop_servingX s z#BaseSelectorEventLoop._stop_serving)N)N)N)NNN)-r! �
__module__� __qualname__�__doc__r r/ r ZSSL_HANDSHAKE_TIMEOUTr4 r7 r; r: r# rH rE rR rW rT ra rp rD r= r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� �
__classcell__r r r' r r 0 s~
� � � �
�
�
. �
) r c s� e Zd ZdZeZdZd � fdd� Zdd� Zdd� Z d d
� Z
d d � Z d
d� Z dd� Z
ejfdd�Zd dd�Zdd� Zdd� Zdd� Zd d � Z� ZS ) �_SelectorTransporti Nc s� t � �||� t�|�| jd< z|�� | jd< W n tk
rN d | jd< Y nX d| jkr�z|�� | jd< W n tj k
r� d | jd< Y nX || _
|� � | _ d| _
| �|� || _| �� | _d| _d| _| jd k r�| j�� | |j| j < d S )NrB ZsocknamerZ Fr )r r r r` �_extraZ getsocknamerP Z getpeernamerB �errorr� r? r� �_protocol_connected� set_protocol�_server�_buffer_factory�_buffer�
_conn_lost�_closingZ_attachr% )r& r� r r- r) r* r' r r r i 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� �_loopr9 r r" r rt r� �get_write_buffer_size�format�join)r& �infor� �state�bufsizer r r �__repr__� s0
�
�z_SelectorTransport.__repr__c C s | � d � d S r+ )� _force_closer< 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 r+ )r� r< r r r � get_protocol� s z _SelectorTransport.get_protocolc C s | j S r+ )r� r< r r r ro � 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� r= r� r� r� r� � call_soon�_call_connection_lostr< r r r r; � s z_SelectorTransport.closec C s, | j d k r(|d| ��t| d� | j �� d S )Nzunclosed transport )�source)r� �ResourceWarningr; )r& Z_warnr 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: %sTrM )rX rY rf r- ) r rP r� � get_debugr r r_ r� r� )r& re rX 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 r� )
r� r� �clearr� r� r� r� r= r� r� �r& re r r r r� � s
z _SelectorTransport._force_closec C sV z| jr| j�|� W 5 | j �� d | _ d | _d | _| j}|d k rP|�� d | _X d S r+ )r� r; r� r� r� Z_detachr� Zconnection_lost)r& re r* r r r r� � s
z(_SelectorTransport._call_connection_lostc C s
t | j�S r+ )r� r� r< r r r r� � s z(_SelectorTransport.get_write_buffer_sizec G s" | j r
d S | jj||f|�� d S r+ )r� r� rD r� r r r rD � s z _SelectorTransport._add_reader)NN)r� )r! r� r� �max_size� bytearrayr� r� r r� r� r� r� ro r; �warnings�warnr� r� r� r� r� rD 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 r
)�_read_ready_cbr r �_eof�_paused�
_empty_waiterr Z _set_nodelayr� r� r� r� �connection_maderD 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 r+ )r r ZBufferedProtocol�_read_ready__get_bufferr� �_read_ready__data_receivedr r� r� r' r r r� s
z%_SelectorSocketTransport.set_protocolc C s | j o| j S r+ )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� r= 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� rD r� r� r� r� r r r< r r r r� s
z'_SelectorSocketTransport.resume_readingc C s | � � d S r+ )r� r< r r r r� $ s z$_SelectorSocketTransport._read_readyc
C s` | j r
d S z | j�d�}t|�s(td��W nL ttfk
rD � Y n4 tk
rv } z| �|d� W Y �d S d }~X Y nX z| j �
|�}W nd t t fk
r� Y d S ttfk
r� � Y n4 tk
r� } z| �|d� W Y �d S d }~X Y nX |�s | �
� d S z| j�|� W nJ ttfk
�r, � Y n0 tk
�rZ } z| �|d� W 5 d }~X Y nX d S )N���z%get_buffer() returned an empty bufferz/Fatal error: protocol.get_buffer() call failed.�$Fatal read error on socket transportz3Fatal error: protocol.buffer_updated() call failed.)r� r� Z
get_bufferr� r8 ri rj rh r� r� r� rK rJ �_read_ready__on_eofZbuffer_updated)r& r� re r� r r r r� ' sF � �z0_SelectorSocketTransport._read_ready__get_bufferc
C s� | j r
d S z| j�| j�}W nd ttfk
r6 Y d S ttfk
rN � Y n4 tk
r� } z| � |d� W Y �d S d }~X Y nX |s�| �
� d S z| j � |� W nF ttfk
r� � Y n. tk
r� } z| � |d� W 5 d }~X Y nX d S )Nr� z2Fatal error: protocol.data_received() call failed.)
r� r� rI r� rK rJ ri rj rh r� r� r� Z
data_received)r& rG re r r r r� L s. �z3_SelectorSocketTransport._read_ready__data_receivedc
C s� | j �� rt�d| � z| j�� }W nL ttfk
r> � Y n4 tk
rp } z| � |d� W Y �d S d }~X Y nX |r�| j �
| j � n| � � d S )Nz%r received EOFz1Fatal error: protocol.eof_received() call failed.)
r� r� r r r� Z eof_receivedri rj rh r� r= r� r; )r& Z keep_openre r r r r� e s
�z,_SelectorSocketTransport._read_ready__on_eofc
C s6 t |tttf�s$tdt|�j����| jr2td��| j d k rDtd��|sLd S | j
rz| j
t j krht
�d� | j
d7 _
d S | j�s z| j�|�}W nb ttfk
r� Y nb ttfk
r� � Y nJ tk
r� } z| �|d� W Y �d S d }~X Y nX ||d � }|�s d S | j�| j| j� | j� |� | � � d S )N�/data argument must be a bytes-like object, not z%Cannot call write() after write_eof()z(unable to write; sendfile is in progress� socket.send() raised exception.r �%Fatal write error on socket transport) r �bytesr� r� r �typer! r� r8 r� r� r �!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� r� rO rK rJ ri rj rh r� r� r� r� � _write_ready�extend�_maybe_pause_protocol)r& rG r� re r r r �writez s:
z _SelectorSocketTransport.writec
C s( | j std��| jrd S z| j�| j �}W n� ttfk
rB Y n� ttfk
rZ � Y n� t k
r� } z>| j
� | j � | j �
� | �|d� | jd k r�| j�|� W 5 d }~X Y npX |r�| j d |�= | �� | j �s$| j
� | j � | jd k r�| j�d � | j�r| �d � n| j�r$| j�tj� d S )NzData should not be emptyr� )r� �AssertionErrorr� r� rO rK rJ ri rj rh r� r� r� r� r� r� r� �_maybe_resume_protocolr� r� r� r� �shutdownrB �SHUT_WR)r& r� re r r r r � s4
z%_SelectorSocketTransport._write_readyc C s. | j s | jrd S d| _| js*| j�tj� d S r� )r� r� r� r� r rB r r< r r r � write_eof� s
z"_SelectorSocketTransport.write_eofc C s dS r� r r< r r r �
can_write_eof� s z&_SelectorSocketTransport.can_write_eofc s* t � �|� | jd k r&| j�td�� d S )Nz Connection is closed by peer)r r� r� r� �ConnectionErrorr� r' r r r� � s
�z._SelectorSocketTransport._call_connection_lostc C s6 | j d k rtd��| j�� | _ | js0| j �d � | j S )NzEmpty waiter is already set)r� r8 r� rg r� r� r< r r r r� � s
z+_SelectorSocketTransport._make_empty_waiterc C s
d | _ d S r+ )r� r< r r r r� � s z,_SelectorSocketTransport._reset_empty_waiter)NNN)r! r� r� Z_start_tls_compatibler Z
_SendfileModeZ
TRY_NATIVEZ_sendfile_compatibler r� r� r� r� r� r� r� r� r r r r
r� r� r� r� r r r' r r, � s* � %' r, c sF e Zd ZejZd � fdd� Zdd� Zdd� Zd
dd �Z d
d � Z
� Z S )r5 Nc s^ t � �||||� || _| j�| jj| � | j�| j| j| j � |d k rZ| j�t
j |d � d S r+ ) r r �_addressr� r� r� r� rD r� r� r r� )r& r� r r- r6 r. r) r' r r r � s
�
�z#_SelectorDatagramTransport.__init__c C s t dd� | jD ��S )Nc s s | ]\}}t |�V qd S r+ )r� )�.0rG rb r r r � <genexpr>� s zC_SelectorDatagramTransport.get_write_buffer_size.<locals>.<genexpr>)�sumr� r< r r r r� � s z0_SelectorDatagramTransport.get_write_buffer_sizec
C s� | j r
d S z| j�| j�\}}W n� ttfk
r8 Y n� tk
rd } z| j�|� W 5 d }~X Y nT t t
fk
r| � Y n< t k
r� } z| � |d� W 5 d }~X Y nX | j�
||� d S )Nz&Fatal read error on datagram transport)r� r� Zrecvfromr� rK rJ rP r� �error_receivedri rj rh r� Zdatagram_received�r& rG rd re r r r r� � s z&_SelectorDatagramTransport._read_readyc
C s� t |tttf�s$tdt|�j����|s,d S | jrV|d | jfkrPtd| j� ���| j}| j r�| jr�| j t
j krxt �
d� | j d7 _ d S | j�slz,| jd r�| j�|� n| j�||� W d S ttfk
r� | j�| j| j� Y n� tk
�r } z| j�|� W Y �d S d }~X Y nP t t fk
�r6 � Y n6 t k
�rj } z| � |d� W Y �d S d }~X Y nX | j� t|�|f� | �!� d S )Nr� z!Invalid address: must be None or r� r rZ �'Fatal write error on datagram transport)"r r� r� r� r r� r! r rn r� r r� r r r� r� r� rO �sendtorK rJ r� r� r� �
_sendto_readyrP r� r ri rj rh r� r� r r r r r r � sH
�
�z!_SelectorDatagramTransport.sendtoc
C s | j r�| j �� \}}z*| jd r.| j�|� n| j�||� W q ttfk
rj | j �||f� Y q�Y q t k
r� } z| j
� |� W Y �d S d }~X Y q t t
fk
r� � Y q tk
r� } z| �|d� W Y �d S d }~X Y q X q | �� | j �s| j�| j� | j�r| �d � d S )NrZ r )r� �popleftr� r� rO r rK rJ �
appendleftrP r� r ri rj rh r� r r� r� r� r� r� r r r r r * s2
�z(_SelectorDatagramTransport._sendto_ready)NNN)N) r! r� r� � collections�dequer� r r� r� r r r� r r r' r r5 � s �
+r5 ) r� �__all__r r^ r� r rB r� r$ r � ImportError� r r r r r r r
r �logr r r Z
BaseEventLoopr Z_FlowControlMixinZ Transportr� r, r5 r r r r �<module> sF
1� o