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Editing: proactor_events.cpython-34.pyo
� j f�N � @ s_ d Z d g Z d d l Z d d l 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 Gd d � d e j e j � Z Gd d � d e e j � Z Gd d � d e e j � Z Gd d � d e � Z Gd d � d e e e j � Z Gd d � d e e e j � Z Gd d � d e j � Z d S)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)�compat)� constants)�futures)�sslproto)� transports)�loggerc s� e Z d Z d Z d d d � f d d � Z d d � Z d d � Z d d � Z d d � Z e j ru d d � Z n d d d � Z d d � Z d d � Z d d � Z � S)�_ProactorBasePipeTransportz*Base class for pipe and socket transports.Nc s� t � j | | � | j | � | | _ | | _ | | _ d | _ d | _ d | _ d | _ d | _ d | _ d | _ | j d k r� | j j � n | j j | j j | � | d k r� | j j t j | d � n d S)Nr F)�super�__init__� _set_extra�_sock� _protocol�_server�_buffer� _read_fut� _write_fut�_pending_write� _conn_lost�_closing� _eof_writtenZ_attach�_loop� call_soonZconnection_mader Z _set_result_unless_cancelled)�self�loop�sock�protocol�waiter�extra�server)� __class__� �</opt/alt/python34/lib64/python3.4/asyncio/proactor_events.pyr s$ z#_ProactorBasePipeTransport.__init__c C s | j j g } | j d k r. | j d � n | j rG | j d � n | j d k rs | j d | j j � � n | j d k r� | j d | j � n | j d k r� | j d | j � n | j r� t | j � } | j d | � n | j r| j d � n d d j | � S) N�closed�closingzfd=%szread=%szwrite=%rzwrite_bufsize=%sz EOF writtenz<%s>� ) r" �__name__r �appendr �filenor r r �lenr �join)r �info�bufsizer# r# r$ �__repr__/ s" z#_ProactorBasePipeTransport.__repr__c C s | | j d <d S)N�pipe)�_extra)r r r# r# r$ r B s z%_ProactorBasePipeTransport._set_extrac C s | j S)N)r )r r# r# r$ � is_closingE s z%_ProactorBasePipeTransport.is_closingc C s� | j r d Sd | _ | j d 7_ | j rW | j d k rW | j j | j d � n | j d k r | j j � d | _ n d S)NTr ) r r r r r r �_call_connection_lostr �cancel)r r# r# r$ �closeH s z _ProactorBasePipeTransport.closec C s4 | j d k r0 t j d | t � | j � n d S)Nzunclosed transport %r)r �warnings�warn�ResourceWarningr5 )r r# r# r$ �__del__W s z"_ProactorBasePipeTransport.__del__z Fatal error on pipe transportc C s� t | t t f � rC | j j � rr t j d | | d d �qr n/ | j j i | d 6| d 6| d 6| j d 6� | j | � d S)Nz%r: %s�exc_infoT�message� exceptionZ transportr ) � isinstance�BrokenPipeError�ConnectionResetErrorr � get_debugr �debug�call_exception_handlerr � _force_close)r �excr; r# r# r$ � _fatal_error\ s z'_ProactorBasePipeTransport._fatal_errorc C s� | j r d Sd | _ | j d 7_ | j rG | j j � d | _ n | j ri | j j � d | _ n d | _ d | _ | j j | j | � d S)NTr r ) r r r r4 r r r r r r3 )r rD r# r# r$ rC i s z'_ProactorBasePipeTransport._force_closec C s� z | j j | � Wd t | j d � r? | j j t j � n | j j � d | _ | j } | d k r� | j � d | _ n Xd S)N�shutdown) r Zconnection_lost�hasattrr rF �socketZ SHUT_RDWRr5 r Z_detach)r rD r! r# r# r$ r3 x s z0_ProactorBasePipeTransport._call_connection_lostc C s2 | j } | j d k r. | t | j � 7} n | S)N)r r r+ )r �sizer# r# r$ �get_write_buffer_size� s z0_ProactorBasePipeTransport.get_write_buffer_size)r( � __module__� __qualname__�__doc__r r/ r r2 r5 r ZPY34r9 rE rC r3 rJ r# r# )r" r$ r s r c sX e Z d Z d Z d d d � f d d � Z d d � Z d d � Z d d d � Z � S) �_ProactorReadPipeTransportzTransport for read pipes.Nc s? t � j | | | | | | � d | _ | j j | j � d S)NF)r r �_pausedr r � _loop_reading)r r r r r r r! )r" r# r$ r � s z#_ProactorReadPipeTransport.__init__c C s_ | j r t d � � n | j r0 t d � � n d | _ | j j � r[ t j d | � n d S)Nz#Cannot pause_reading() when closingzAlready pausedTz%r pauses reading)r � RuntimeErrorrO r r@ r rA )r r# r# r$ � pause_reading� s z(_ProactorReadPipeTransport.pause_readingc C sm | j s t d � � n d | _ | j r. d S| j j | j | j � | j j � ri t j d | � n d S)Nz Not pausedFz%r resumes reading) rO rQ r r r rP r r@ r rA )r r# r# r$ �resume_reading� s z)_ProactorReadPipeTransport.resume_readingc C s� | j r d Sd } zqyi | d k r= d | _ | j � } n | j rP d } d S| d k r` d S| j j j | j d � | _ Wn� t k r� } zF | j s� | j | d � n% | j j � r� t j d d d �n WYd d } ~ Xn� t k r} z | j | � WYd d } ~ Xnk t k rL} z | j | d � WYd d } ~ Xn7 t j k ro| j sk� n Yn X| j j | j � Wd | r�| j j | � nS | d k r�| j j � r�t j d | � n | j j � } | s�| j � q�n Xd S)N� i z"Fatal read error on pipe transportz*Read error on pipe transport while closingr: Tz%r received EOF)rO r �resultr r � _proactor�recvr �ConnectionAbortedErrorrE r@ r rA r? rC �OSErrorr �CancelledError�add_done_callbackrP r Z data_receivedZ eof_receivedr5 )r �fut�datarD Z keep_openr# r# r$ rP � sF " " z(_ProactorReadPipeTransport._loop_reading)r( rK rL rM r rR rS rP r# r# )r" r$ rN � s rN c @ sX e Z d Z d Z d d � Z d d d d � Z d d � Z d d � Z d d � Z d S) � _ProactorBaseWritePipeTransportzTransport for write pipes.c C s� t | t t t f � s0 t d t | � � � n | j rH t d � � n | sR d S| j r� | j t j k r} t j d � n | j d 7_ d S| j d k r� | j d t | � � n? | j s� t | � | _ | j � n | j j | � | j � d S)Nz#data argument must be byte-ish (%r)zwrite_eof() already calledz socket.send() raised exception.r r] )r= �bytes� bytearray� memoryview� TypeError�typer rQ r r Z!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr � _loop_writingr �_maybe_pause_protocol�extend)r r] r# r# r$ �write� s& z%_ProactorBaseWritePipeTransport.writeNc C sz y d | _ d | _ | r( | j � n | d k rI | j } d | _ n | s� | j rq | j j | j d � n | j r� | j j t j � n | j � no | j j j | j | � | _ | j j � s� t | � | _ | j j | j � | j � n | j j | j � Wnf t k rA} z | j | � WYd d } ~ Xn5 t k ru} z | j | d � WYd d } ~ Xn Xd S)Nr z#Fatal write error on pipe transport)r r rU r r r r r3 r r rF rH �SHUT_WRZ_maybe_resume_protocolrV �send�doner+ r[ re rf r? rC rY rE )r �fr] rD r# r# r$ re s0 z-_ProactorBaseWritePipeTransport._loop_writingc C s d S)NTr# )r r# r# r$ � can_write_eof( s z-_ProactorBaseWritePipeTransport.can_write_eofc C s | j � d S)N)r5 )r r# r# r$ � write_eof+ s z)_ProactorBaseWritePipeTransport.write_eofc C s | j d � d S)N)rC )r r# r# r$ �abort. s z%_ProactorBaseWritePipeTransport.abort) r( rK rL rM rh re rm rn ro r# r# r# r$ r^ � s ## r^ c s. e Z d Z � f d d � Z d d � Z � S)�_ProactorWritePipeTransportc sH t � j | | � | j j j | j d � | _ | j j | j � d S)N� ) r r r rV rW r r r[ � _pipe_closed)r �args�kw)r" r# r$ r 3 s z$_ProactorWritePipeTransport.__init__c C sV | j � r d S| j r d Sd | _ | j d k rH | j t � � n | j � d S)N)Z cancelledr r r rC r> r5 )r r\ r# r# r$ rr 8 s z(_ProactorWritePipeTransport._pipe_closed)r( rK rL r rr r# r# )r" r$ rp 2 s rp c @ s. e Z d Z d Z d d � Z d d � Z d S)� _ProactorDuplexPipeTransportzTransport for duplex pipes.c C s d S)NFr# )r r# r# r$ rm M s z*_ProactorDuplexPipeTransport.can_write_eofc C s t � d S)N)�NotImplementedError)r r# r# r$ rn P s z&_ProactorDuplexPipeTransport.write_eofN)r( rK rL rM rm rn r# r# r# r$ ru H s ru c @ s: e Z d Z d Z d d � Z d d � Z d d � Z d S) �_ProactorSocketTransportz Transport for connected sockets.c C s� | | j d <y | j � | j d <WnC t j t f k ri | j j � re t j d | d d �n Yn Xd | j k r� y | j � | j d <Wq� t j t f k r� | j j � r� t j d | d d �n Yq� Xn d S)NrH Zsocknamezgetsockname() failed on %rr: T�peernamezgetpeername() failed on %r) r1 Z getsocknamerH �error�AttributeErrorr r@ r rd Z getpeername)r r r# r# r$ r Y s z#_ProactorSocketTransport._set_extrac C s d S)NTr# )r r# r# r$ rm i s z&_ProactorSocketTransport.can_write_eofc C sH | j s | j r d Sd | _ | j d k rD | j j t j � n d S)NT)r r r r rF rH ri )r r# r# r$ rn l s z"_ProactorSocketTransport.write_eofN)r( rK rL rM r rm rn r# r# r# r$ rw T s rw c sK e Z d Z � f d d � Z d d d d d � Z d d d d d d d d d d d �Z d d d d � Z d d d d � Z 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" � Z d d# d$ � Z d% d& � Z d d d' d( � Z d) d* � Z d+ d, � Z d- d. � Z � S)/r c sb t � j � t j d | j j � | | _ | | _ d | _ i | _ | j | � | j � d S)NzUsing proactor: %s) r r r rA r" r( rV � _selector�_self_reading_future�_accept_futuresZset_loop�_make_self_pipe)r Zproactor)r" r# r$ r v s z BaseProactorEventLoop.__init__Nc C s t | | | | | | � S)N)rw )r r r r r r! r# r# r$ �_make_socket_transport� s z,BaseProactorEventLoop._make_socket_transport� server_sideF�server_hostnamer r! c C s\ t j � s t d � � n t j | | | | | | � } t | | | d | d | �| j S)NzOProactor event loop requires Python 3.5 or newer (ssl.MemoryBIO) to support SSLr r! )r Z_is_sslproto_availablerv Z SSLProtocolrw Z_app_transport) r Zrawsockr � sslcontextr r� r� r r! Z ssl_protocolr# r# r$ �_make_ssl_transport� s z)BaseProactorEventLoop._make_ssl_transportc C s t | | | | | � S)N)ru )r r r r r r# r# r$ �_make_duplex_pipe_transport� s z1BaseProactorEventLoop._make_duplex_pipe_transportc C s t | | | | | � S)N)rN )r r r r r r# r# r$ �_make_read_pipe_transport� s z/BaseProactorEventLoop._make_read_pipe_transportc C s t | | | | | � S)N)rp )r r r r r r# r# r$ �_make_write_pipe_transport� s z0BaseProactorEventLoop._make_write_pipe_transportc so | j � r t d � � n | j � r+ d S| j � | j � | j j � d | _ d | _ t � j � d S)Nz!Cannot close a running event loop) Z is_runningrQ � is_closed�_stop_accept_futures�_close_self_piperV r5 r{ r )r )r" r# r$ r5 � s zBaseProactorEventLoop.closec C s | j j | | � S)N)rV rW )r r �nr# r# r$ � sock_recv� s z BaseProactorEventLoop.sock_recvc C s | j j | | � S)N)rV rj )r r r] r# r# r$ � sock_sendall� s z"BaseProactorEventLoop.sock_sendallc C sv y t j | | � WnH t k r^ } z( t j d | � } | j | � | SWYd d } ~ Xn X| j j | | � Sd S)Nr )r Z_check_resolved_address� ValueErrorr ZFutureZ set_exceptionrV Zconnect)r r Zaddress�errr\ r# r# r$ � sock_connect� s z"BaseProactorEventLoop.sock_connectc C s | j j | � S)N)rV �accept)r r r# r# r$ � sock_accept� s z!BaseProactorEventLoop.sock_acceptc C s t � d S)N)rv )r r# r# r$ � _socketpair� s z!BaseProactorEventLoop._socketpairc C sg | j d k r( | j j � d | _ n | j j � d | _ | j j � d | _ | j d 8_ d S)Nr )r| r4 �_ssockr5 �_csock� _internal_fds)r r# r# r$ r� � s z&BaseProactorEventLoop._close_self_pipec C s[ | j � \ | _ | _ | j j d � | j j d � | j d 7_ | j | j � d S)NFr )r� r� r� Z setblockingr� r �_loop_self_reading)r r# r# r$ r~ � s z%BaseProactorEventLoop._make_self_pipec C s� y5 | d k r | j � n | j j | j d � } Wn_ t j k rP d SYn` t k r� } z' | j i d d 6| d 6| d 6� WYd d } ~ Xn X| | _ | j | j � d S)Ni z.Error on reading from the event loop self piper; r< r ) rU rV rW r� r rZ � ExceptionrB r| r[ r� )r rl rD r# r# r$ r� � s z(BaseProactorEventLoop._loop_self_readingc C s | j j d � d S)Ns )r� rj )r r# r# r$ �_write_to_self� s z$BaseProactorEventLoop._write_to_selfc s5 d � � � � � � f d d � � � j � � d S)Nc s� y� | d k r� | j � \ } } � j rC t j d � | | � n � � } � d k r� � j | | � d d d i | d 6d � �q� � j | | d i | d 6d � �n � j � r� d S� j j � � } Wn� t k rZ} zh � j � d k r&� j i d d 6| d 6� d 6� � j � n" � j rHt j d � d d �n WYd d } ~ Xn? t j k rx� j � Yn! X| � j � j � <| j � � d S)Nz#%r got a new connection from %r: %rr� Tr rx r! r zAccept failed on a socketr; r< rH zAccept failed on socket %rr: ���)rU Z_debugr rA r� r r� rV r� rY r* rB r5 r rZ r} r[ )rl ZconnZaddrr rD )r �protocol_factoryr r! r r� r# r$ r � s> "z2BaseProactorEventLoop._start_serving.<locals>.loop)r )r r� r r� r! r# )r r� r r! r r� r$ �_start_serving� s $$z$BaseProactorEventLoop._start_servingc C s d S)Nr# )r Z event_listr# r# r$ �_process_events s z%BaseProactorEventLoop._process_eventsc C s5 x! | j j � D] } | j � q W| j j � d S)N)r} �valuesr4 �clear)r Zfuturer# r# r$ r� s z*BaseProactorEventLoop._stop_accept_futuresc C s( | j � | j j | � | j � d S)N)r� rV � _stop_servingr5 )r r r# r# r$ r� # s z#BaseProactorEventLoop._stop_serving)r( rK rL r r r� r� r� r� r5 r� r� r� r� r� r� r~ r� r� r� r� r� r� r# r# )r" r$ r t s4 ( )rM �__all__rH r6 � r r r r r r �logr Z_FlowControlMixinZ BaseTransportr Z ReadTransportrN ZWriteTransportr^ rp Z Transportru rw Z BaseEventLoopr r# r# r# r$ �<module> s0 z M S
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