관리-도구
편집 파일: selector_events.cpython-35.opt-2.pyc
���]�� � @ s� d g Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z y d d l Z Wn e k r{ d Z Yn Xd d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d � Z e e d � rFd d � Z n d d � Z Gd d � d e j � Z Gd d � d e j e j � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z d S) �BaseSelectorEventLoop� N� )� base_events)�compat)� constants)�events)�futures)� selectors)� transports)�sslproto)� coroutine)�loggerc C sA y | j | � } Wn t k r+ d SYn Xt | j | @� Sd S)NF)�get_key�KeyError�boolr )�selector�fd�event�key� r �4/opt/alt/python35/lib64/python3.5/selector_events.py�_test_selector_event s r � TCP_NODELAYc C s\ | j t j t j h k rX | j t j k rX | j t j k rX | j t j t j d � d S)Nr ) �family�socket�AF_INET�AF_INET6�type� SOCK_STREAM�proto� IPPROTO_TCP� setsockoptr )�sockr r r � _set_nodelay, s r# c C s d S)Nr )r" r r r r# 2 s c s> e Z d Z d � f d d � Z d d d d d d d �Z d d d d d d d d d d d �Z d d d d d d d d d d � Z d d d d d � Z � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d d d d! � Z d d d d" d# � Z e d d d$ d% � � Z d& d' � Z d( d) � Z d* d+ � Z d, d- � Z d. d/ � Z d0 d1 � Z d2 d3 � Z d4 d5 � Z d6 d7 � Z d8 d9 � Z d: d; � Z d< d= � Z d> d? � Z e d@ dA � � Z dB dC � Z! dD dE � Z" dF dG � Z# dH dI � Z$ dJ dK � Z% dL dM � Z& dN dO � Z' � S)Pr Nc sa t � j � | d k r% t j � } t j d | j j � | | _ | j � t j � | _ d S)NzUsing selector: %s) �super�__init__r �DefaultSelectorr �debug� __class__�__name__� _selector�_make_self_pipe�weakref�WeakValueDictionary� _transports)�selfr )r( r r r% < s z BaseSelectorEventLoop.__init__�extra�serverc C s t | | | | | | � S)N)�_SelectorSocketTransport)r/ r" �protocol�waiterr0 r1 r r r �_make_socket_transportF s z,BaseSelectorEventLoop._make_socket_transport� server_sideF�server_hostnamec C s{ t j � s: | j | | | | d | d | d | d | �St j | | | | | | � } t | | | d | d | �| j S)Nr6 r7 r0 r1 )r Z_is_sslproto_available�_make_legacy_ssl_transportZ SSLProtocolr2 Z_app_transport) r/ �rawsockr3 � sslcontextr4 r6 r7 r0 r1 Z ssl_protocolr r r �_make_ssl_transportK s z)BaseSelectorEventLoop._make_ssl_transportc C s" t | | | | | | | | | � S)N)�_SelectorSslTransport) r/ r9 r3 r: r4 r6 r7 r0 r1 r r r r8 Z s z0BaseSelectorEventLoop._make_legacy_ssl_transportc C s t | | | | | | � S)N)�_SelectorDatagramTransport)r/ r" r3 �addressr4 r0 r r r �_make_datagram_transportd s z.BaseSelectorEventLoop._make_datagram_transportc sh | j � r t d � � | j � r( d S| j � t � j � | j d k rd | j 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 rC i s zBaseSelectorEventLoop.closec C s t � d S)N)�NotImplementedError)r/ r r r � _socketpairt s z!BaseSelectorEventLoop._socketpairc C sU | j | j j � � | j j � d | _ | j j � d | _ | j d 8_ d S)Nr )�_remove_reader�_ssock�filenorC �_csock� _internal_fds)r/ r r r rB w s z&BaseSelectorEventLoop._close_self_pipec C sg | j � \ | _ | _ | j j d � | j j d � | j d 7_ | j | j j � | j � d S)NFr )rE rG rI � setblockingrJ � _add_readerrH �_read_from_self)r/ r r r r+ 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 s_ xX y* | j j d � } | s P| j | � Wq t k rD w Yq t k rV PYq Xq Wd S)Ni )rG �recvrO �InterruptedError�BlockingIOError)r/ rN r r r rM � s z%BaseSelectorEventLoop._read_from_selfc C s[ | j } | d k rW y | j d � Wn. t k rV | j rR t j d d d �Yn Xd S)Ns z3Fail to write a null byte into the self-pipe socket�exc_infoT)rI �send�OSError�_debugr r' )r/ Zcsockr r r �_write_to_self� s z$BaseSelectorEventLoop._write_to_self�d c C s, | j | j � | j | | | | | � d S)N)rL rH �_accept_connection)r/ �protocol_factoryr" r: r1 �backlogr r r �_start_serving� s z$BaseSelectorEventLoop._start_servingc C s[ xTt | � D]F} yB | j � \ } } | j rG t j d | | | � | j d � Wn� t t t f k rv d SYq t k r } z� | j t j t j t j t j f k r | j d d d | d | i � | j | j � � | j t j | j | | | | | � n � WYd d } ~ Xq Xd | i } | j | | | | | � } | j | � q Wd S)Nz#%r got a new connection from %r: %rF�messagez&socket.accept() out of system resource� exceptionr �peername)�range�acceptrV r r' rK rR rQ �ConnectionAbortedErrorrU �errnoZEMFILEZENFILEZENOBUFSZENOMEM�call_exception_handlerrF rH Z call_laterr ZACCEPT_RETRY_DELAYr\ �_accept_connection2Z create_task) r/ rZ r" r: r1 r[ �_�conn�addr�excr0 ra r r r rY � s4 z(BaseSelectorEventLoop._accept_connectionc c s$ d } d } y� | � } | j � } | rZ | j | | | d | d d d | d | �} n$ | j | | d | d | d | �} y | Ed HWn | j � � Yn XWny t k r } zY | j r d d d | i } | d k r� | | d <| d k r | | d <| j | � WYd d } ~ Xn Xd S) Nr4 r6 Tr0 r1 r] z3Error on transport creation for incoming connectionr^ r3 � transport)� create_futurer; r5 rC � ExceptionrV rd ) r/ rZ rg r0 r: r1 r3 rj r4 ri �contextr r r re � s4 z)BaseSelectorEventLoop._accept_connection2c C sN y | j | } Wn t k r% Yn% X| j � sJ t d j | | � � � d S)Nz.File descriptor {!r} is used by transport {!r})r. r � is_closingr@ �format)r/ r rj r r r �_ensure_fd_no_transport� s z-BaseSelectorEventLoop._ensure_fd_no_transportc G s� | j � t j | | | � } y | j j | � } Wn1 t k rh | j j | t j | d f � YnS X| j | j } \ } } | j j | | t j B| | f � | d k r� | j � d S)N) � _check_closedr �Handler* r r �registerr � EVENT_READrN �modify�cancel) r/ r �callback�args�handler �mask�reader�writerr r r rL s z!BaseSelectorEventLoop._add_readerc C s� | j � r d Sy | j j | � } Wn t k r> d SYn{ X| j | j } \ } } | t j M} | s | j j | � n | j j | | d | f � | d k r� | j � d Sd Sd S)NFT) rA r* r r r rN r rt � unregisterru rv )r/ r r rz r{ r| r r r rF s z$BaseSelectorEventLoop._remove_readerc G s� | j � t j | | | � } y | j j | � } Wn1 t k rh | j j | t j d | f � YnS X| j | j } \ } } | j j | | t j B| | f � | d k r� | j � d S)N) rq r rr r* r r rs r � EVENT_WRITErN ru rv ) r/ r rw rx ry r rz r{ r| r r r � _add_writer( s z!BaseSelectorEventLoop._add_writerc C s� | j � r d Sy | j j | � } Wn t k r> d SYn{ X| j | j } \ } } | t j M} | s | j j | � n | j j | | | d f � | d k r� | j � d Sd Sd S)NFT) rA r* r r r rN r r~ r} ru rv )r/ r r rz r{ r| r r r �_remove_writer7 s z$BaseSelectorEventLoop._remove_writerc G s | j | � | j | | | � S)N)rp rL )r/ r rw rx r r r � add_readerN s z BaseSelectorEventLoop.add_readerc C s | j | � | j | � S)N)rp rF )r/ r r r r � remove_readerS s z#BaseSelectorEventLoop.remove_readerc G s | j | � | j | | | � S)N)rp r )r/ r rw rx r r r � add_writerX s z BaseSelectorEventLoop.add_writerc C s | j | � | j | � S)N)rp r� )r/ r r r r � remove_writer] s z#BaseSelectorEventLoop.remove_writerc C sM | j r' | j � d k r' t d � � | j � } | j | d | | � | S)Nr z the socket must be non-blockingF)rV � gettimeout� ValueErrorrk � _sock_recv)r/ r" �n�futr r r � sock_recvb s z BaseSelectorEventLoop.sock_recvc C s� | j � } | r | j | � | j � r/ d Sy | j | � } Wnh t t f k r{ | j | | j | d | | � Yn? t k r� } z | j | � WYd d } ~ Xn X| j | � d S)NT) rH r� � cancelledrP rR rQ r� r� rl � set_exception� set_result)r/ r� � registeredr" r� r rN ri r r r r� q s # z BaseSelectorEventLoop._sock_recvc C sc | j r' | j � d k r' t d � � | j � } | rR | j | d | | � n | j d � | S)Nr z the socket must be non-blockingF)rV r� r� rk � _sock_sendallr� )r/ r" rN r� r r r � sock_sendall� s z"BaseSelectorEventLoop.sock_sendallc C s� | j � } | r | j | � | j � r/ d Sy | j | � } WnS t t f k rb d } Yn6 t k r� } z | j | � d SWYd d } ~ Xn X| t | � k r� | j d � n5 | r� | | d � } | j | | j | d | | � d S)Nr T) rH r� r� rT rR rQ rl r� �lenr� r� r� )r/ r� r� r" rN r r� ri r r r r� � s" z#BaseSelectorEventLoop._sock_sendallc c s� | j r' | j � d k r' t d � � t t d � sI | j t j k r� t j | d | j d | j d | �} | j � s� | Ed H| j � d \ } } } } } | j � } | j | | | � | Ed HS)Nr z the socket must be non-blocking�AF_UNIXr r �loop)rV r� r� �hasattrr r r� r Z_ensure_resolvedr �done�resultrk � _sock_connect)r/ r" r> Zresolvedrf r� r r r � sock_connect� s "! z"BaseSelectorEventLoop.sock_connectc C s� | j � } y | j | � Wn� t t f k ro | j t j | j | � � | j | | j | | | � Yn? t k r� } z | j | � WYd d } ~ Xn X| j d � d S)N) rH �connectrR rQ �add_done_callback� functools�partial�_sock_connect_doner� �_sock_connect_cbrl r� r� )r/ r� r" r> r ri r r r r� � s z#BaseSelectorEventLoop._sock_connectc C s | j | � d S)N)r� )r/ r r� r r r r� � s z(BaseSelectorEventLoop._sock_connect_donec C s� | j � r d Sy> | j t j t j � } | d k rM t | d | f � � WnI t t f k rh Yn? t k r� } z | j | � WYd d } ~ Xn X| j d � d S)Nr zConnect call failed %s) r� � getsockoptr � SOL_SOCKET�SO_ERRORrU rR rQ rl r� r� )r/ r� r" r> �errri r r r r� � s z&BaseSelectorEventLoop._sock_connect_cbc C sJ | j r' | j � d k r' t d � � | j � } | j | d | � | S)Nr z the socket must be non-blockingF)rV r� r� rk � _sock_accept)r/ r" r� r r r � sock_accept� s z!BaseSelectorEventLoop.sock_acceptc C s� | j � } | r | j | � | j � r/ d Sy# | j � \ } } | j d � Wne t t f k r� | j | | j | d | � YnE t k r� } z | j | � WYd d } ~ Xn X| j | | f � d S)NFT) rH r� r� ra rK rR rQ r� r� rl r� r� )r/ r� r� r" r rg r> ri r r r r� � s z"BaseSelectorEventLoop._sock_acceptc C s� x� | D]� \ } } | j | j } \ } } | t j @rk | d k rk | j r^ | j | � n | j | � | t j @r | d k r | j r� | j | � q | j | � q Wd S)N) �fileobjrN r rt Z _cancelledrF Z _add_callbackr~ r� )r/ Z event_listr rz r� r{ r| r r r �_process_events s z%BaseSelectorEventLoop._process_eventsc C s! | j | j � � | j � d S)N)rF rH rC )r/ r" r r r � _stop_serving s z#BaseSelectorEventLoop._stop_serving)(r) � __module__� __qualname__r% r5 r; r8 r? rC rE rB r+ rO rM rW r\ rY r re rp rL rF r r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r )r( r r 6 sT (# c s� e Z d Z d Z e Z d Z d d � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e j r� d d � Z d d d � Z d d � Z d d � Z d d � Z � S) �_SelectorTransport� i Nc s t � j | | � | | j d <| j � | j d <d | j k r~ y | j � | j d <Wn" t j k r} d | j d <Yn X| | _ | j � | _ | | _ d | _ | | _ | j � | _ d | _ d | _ | j d k r� | j j � | | j | j <d S)Nr Zsocknamer_ Tr F)r$ r% �_extra� getsockname� getpeernamer �error�_sockrH �_sock_fd� _protocol�_protocol_connected�_server�_buffer_factory�_buffer� _conn_lost�_closingZ_attachr. )r/ r� r" r3 r0 r1 )r( r r r% ) s& z_SelectorTransport.__init__c C s | j j g } | j d k r. | j d � n | j rD | j d � | j d | j � | j d k r| j j � rt | j j | j t j � } | r� | j d � n | j d � t | j j | j t j � } | r� d } n d } | j � } | j d | | f � d d j | � S) N�closed�closingzfd=%sz read=pollingz read=idle�pollingZidlezwrite=<%s, bufsize=%s>z<%s>� )r( r) r� �appendr� r� �_looprA r r* r rt r~ �get_write_buffer_size�join)r/ �infor� �state�bufsizer r r �__repr__> s* z_SelectorTransport.__repr__c C s | j d � d S)N)� _force_close)r/ r r r �abortZ s z_SelectorTransport.abortc C s | | _ d S)N)r� )r/ r3 r r r � set_protocol] 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 rn c s z _SelectorTransport.is_closingc C sn | j r d Sd | _ | j j | j � | j sj | j d 7_ | j j | j � | j j | j d � d S)NTr ) r� r� rF r� r� r� r� � call_soon�_call_connection_lost)r/ r r r rC f s z_SelectorTransport.closec C s4 | j d k r0 t j d | t � | j j � d S)Nzunclosed transport %r)r� �warnings�warn�ResourceWarningrC )r/ r r r �__del__t s z_SelectorTransport.__del__zFatal error on transportc C sy t | t j � r= | j j � rh t j d | | d d �n+ | j j d | d | d | d | j i � | j | � d S)Nz%r: %srS Tr] r^ rj r3 ) � isinstancer Z_FATAL_ERROR_IGNOREr� � get_debugr r' rd r� r� )r/ ri r] r r r � _fatal_errory s z _SelectorTransport._fatal_errorc C s� | j r d S| j r6 | j j � | j j | j � | j s[ d | _ | j j | j � | j d 7_ | j j | j | � d S)NTr ) r� r� �clearr� r� r� r� rF r� r� )r/ ri r r r r� � s z _SelectorTransport._force_closec C su z | j r | j j | � Wd | j j � d | _ d | _ d | _ | j } | d k rp | j � d | _ Xd S)N)r� r� Zconnection_lostr� rC r� r� Z_detach)r/ ri r1 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_sizei )r) r� r� �max_size� bytearrayr� r� r% r� r� r� r� rn rC r ZPY34r� r� r� r� r� r r )r( r r� s r� c s e Z d Z d d d � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z � S)r2 Nc s� t � j | | | | | � d | _ d | _ t | j � | j j | j j | � | j j | j j | j | j � | d k r� | j j t j | d � d S)NF)r$ r% �_eof�_pausedr# r� r� r� r� �connection_maderL r� � _read_readyr � _set_result_unless_cancelled)r/ r� r" r3 r4 r0 r1 )r( r r r% � s z!_SelectorSocketTransport.__init__c C si | j r t d � � | j r* t d � � d | _ | j j | j � | j j � re t j d | � d S)Nz#Cannot pause_reading() when closingzAlready pausedTz%r pauses reading) r� r@ r� r� rF r� r� r r' )r/ r r r � pause_reading� s z&_SelectorSocketTransport.pause_readingc C sg | j s t d � � d | _ | j r+ d S| j j | j | j � | j j � rc t j d | � d S)Nz Not pausedFz%r resumes reading) r� r@ r� r� rL r� r� r� r r' )r/ r r r �resume_reading� s z'_SelectorSocketTransport.resume_readingc C s� | j r d Sy | j j | j � } WnL t t f k r@ Yn� t k rt } z | j | d � WYd d } ~ Xnn X| r� | j j | � nT | j j � r� t j d | � | j j � } | r� | j j | j � n | j � d S)Nz$Fatal read error on socket transportz%r received EOF)r� r� rP r� rR rQ rl r� r� � data_receivedr� r� r r' � eof_receivedrF r� rC )r/ rN ri � keep_openr r r r� � s #z$_SelectorSocketTransport._read_readyc C sN t | t t t f � s1 t d t | � j � � | j rF t d � � | sP d S| j r� | j t j k rx t j d � | j d 7_ d S| j s0y | j j | � } WnP t t f k r� YnS t k r� } z | j | d � d SWYd d } ~ Xn X| | d � } | sd S| j j | j | j � | j j | � | 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� TypeErrorr r) r� r@ r� r �!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� r� rT rR rQ rl r� r� r r� � _write_ready�extend�_maybe_pause_protocol)r/ rN r� ri r r r �write� s4 z _SelectorSocketTransport.writec C s | j r d Sy | j j | j � } Wnl t t f k r@ Yn� t k r� } z5 | j j | j � | j j � | j | d � WYd d } ~ Xnr X| r� | j d | � =| j � | j s| j j | j � | j r� | j d � n | j r| j j t j � d S)Nz%Fatal write error on socket transport)r� r� rT r� rR rQ rl r� r� r� r� r� �_maybe_resume_protocolr� r� r� �shutdownr �SHUT_WR)r/ r� ri r r r r� s& # z%_SelectorSocketTransport._write_readyc C s6 | j r d Sd | _ | j s2 | j j t j � d S)NT)r� r� r� r� r r� )r/ r r r � write_eof" s z"_SelectorSocketTransport.write_eofc C s d S)NTr )r/ r r r � can_write_eof) s z&_SelectorSocketTransport.can_write_eof) r) r� r� r% r� r� r� r� r� r� r� r r )r( r r2 � s # r2 c s� e Z d Z e Z d d d d d � f d d � Z d d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z � S)r< NFc s t d k r t d � � | s0 t j | | � } d | d d i } | rY | rY | | d <| j | | � } t � j | | | | | � d | _ | | _ | | _ | | _ d | _ | j j d | � | j j � r� t j d | � | j j � } n d } | j | � d S)Nz stdlib ssl module not availabler6 Zdo_handshake_on_connectFr7 r: z%r starts SSL handshake)�sslr@ r Z_create_transport_contextZ wrap_socketr$ r% r� �_server_hostname�_waiter� _sslcontextr� r� �updater� r� r r' �time� _on_handshake) r/ r� r9 r3 r: r4 r6 r7 r0 r1 Z wrap_kwargsZsslsock� start_time)r( r r r% 1 s* z _SelectorSslTransport.__init__c C s^ | j d k r d S| j j � sQ | d k rA | j j | � n | j j d � d | _ d S)N)r� r� r� r� )r/ ri r r r �_wakeup_waiterU s z$_SelectorSslTransport._wakeup_waiterc % C s� y | j j � Wnt j k rH | j j | j | j | � d SYn� t j k r| | j j | j | j | � d SYn� t k r} z� | j j � r� t j d | d d �| j j | j � | j j | j � | j j � | j | � t | t � rd S� WYd d } ~ Xn X| j j | j � | j j | j � | j j � } t | j d � s| j r| j j t j k ry t j | | j � Wnh t k r} zH | j j � r�t j d | d d �| j j � | j | � d SWYd d } ~ Xn X| j j d | d | j j � d | j j � d | j � d | _ d | _ | j j | j | j! � d | _" | j j# | j$ j% | � | j j# | j � | j j � r�| j j& � | } t j' d | | d � d S) Nz%r: SSL handshake failedrS TZcheck_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� rL r� r� �SSLWantWriteErrorr � BaseExceptionr� r r� rF r� rC r� r� rl 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� ri r� Zdtr r r r� _ sb z#_SelectorSslTransport._on_handshakec C si | j r t d � � | j r* t d � � d | _ | j j | j � | j j � re t j d | � d S)Nz#Cannot pause_reading() when closingzAlready pausedTz%r pauses reading) r� r@ r� r� rF r� r� r r' )r/ r r r r� � s z#_SelectorSslTransport.pause_readingc C sg | j s t d � � d | _ | j r+ d S| j j | j | j � | j j � rc t j d | � d S)Nz Not pausedFz%r resumes reading) r� r@ r� r� rL r� r� r� r r' )r/ r r r r� � s z$_SelectorSslTransport.resume_readingc C sr | j r d S| j rK d | _ | j � | j rK | j j | j | j � y | j j | j � } Wn� t t t j f k r� Yn� t j k r� d | _ | j j | j � | j j | j | j � Yn� t k r} z | j | d � WYd d } ~ Xnm X| r| j j | � nS zE | j j � r=t j d | � | j j � } | r_t j d � Wd | j � Xd S)NFTz!Fatal read error on SSL transportz%r received EOFz?returning true from eof_received() has no effect when using ssl)r� r� r� r� r� r r� r� rP r� rR rQ r� r� r� r� rF rl r� r� r� r� r r' r� r� rC )r/ rN ri r� r r r r� � s4 #z!_SelectorSslTransport._read_readyc C s� | j r d S| j rT d | _ | j � | j p8 | j sT | j j | j | j � | j rAy | j j | j � } Wn� t t t j f k r� d } Yn� t j k r� d } | j j | j � d | _ YnY t k r*} z9 | j j | j � | j j � | j | d � d SWYd d } ~ Xn X| rA| j d | � =| j � | j s}| j j | j � | j r}| j d � d S)NFr Tz"Fatal write error on SSL transport)r� r� r� r� r� r� rL r� r� r� rT rR rQ r� r� r� r� r� rl r� r� r� r� )r/ r� ri r r r r� � s8 z"_SelectorSslTransport._write_readyc C s� t | t t t f � s1 t d t | � j � � | s; d S| j rv | j t j k rc t j d � | j d 7_ d S| j s� | j j | j | j � | j j | � | j � d S)Nz1data argument must be a bytes-like object, not %rz socket.send() raised exception.r )r� r� r� r� r� r r) r� r r� r r� r� r� r r� r� r� r� )r/ 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" # r< c sg e Z d Z e j Z d d d � f d d � Z d d � Z d d � Z d d d � Z d d � Z � S) r= Nc s� t � j | | | | � | | _ | j j | j j | � | j j | j j | j | j � | d k r� | j j t j | d � d S)N) r$ r% �_addressr� r� r� r� rL r� r� r r� )r/ r� r" r3 r> r4 r0 )r( r r r% s z#_SelectorDatagramTransport.__init__c C s t d d � | j D� � S)Nc s s! | ] \ } } t | � Vq d S)N)r� )�.0rN rf 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 Sy | j j | j � \ } } Wn� t t f k rF Yn| t k rz } z | j j | � WYd d } ~ XnH t k r� } z | j | d � WYd d } ~ Xn X| j j | | � d S)Nz&Fatal read error on datagram transport) r� r� �recvfromr� rR rQ rU r� �error_receivedrl r� Zdatagram_received)r/ rN rh ri r r r r� ) s "#z&_SelectorDatagramTransport._read_readyc C s� t | t t t f � s1 t d t | � j � � | s; d S| j ro | d | j f k ro t d | j f � � | j r� | j r� | j t j k r� t j d � | j d 7_ d S| j s�y7 | j r� | j j | � n | j j | | � d SWn� t t f k r&| j j | j | j � Ynq t k r^} z | j j | � d SWYd d } ~ Xn9 t k r�} z | j | d � d SWYd d } ~ Xn X| j j 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� rT �sendtorR rQ r� r r� � _sendto_readyrU r� r rl r� r� r� )r/ rN rh ri r r r r 7 s< z!_SelectorDatagramTransport.sendtoc C s: x� | j r� | j j � \ } } y3 | j r@ | j j | � n | j j | | � Wq t t f k r� | j j | | f � PYq t k r� } z | j j | � d SWYd d } ~ Xq t k r� } z | j | d � d SWYd d } ~ Xq Xq W| j � | j s6| j j | j � | j r6| j d � d S)Nz'Fatal write error on datagram transport)r� �popleftr� r� rT r rR rQ � appendleftrU r� r rl r� r� r� r� r� r� r� )r/ rN rh ri r r r r ^ s* z(_SelectorDatagramTransport._sendto_ready) r) r� r� � collections�dequer� r% r� r� r r r r )r( r r= s 'r= )!�__all__r rc r� r r� r, r� � ImportError� r r r r r r r r Z coroutinesr �logr r r� r# Z BaseEventLoopr Z_FlowControlMixinZ Transportr� r2 r< r= r r r r �<module> s> � � ���