← Back
Editing: proactor_events.cpython-35.pyc
��Yf�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 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) �_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 � | j j | j j | � | d k r� | j j t j | d � 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/python35/lib64/python3.5/asyncio/proactor_events.pyr s$ z#_ProactorBasePipeTransport.__init__c C s | j j g } | j d k r. | j d � n | j rD | j d � | j d k rm | j d | j j � � | j d k r� | j d | j � | j d k r� | j d | j � | j r� t | j � } | j d | � | j r� | j d � 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 | | _ d S)N)r )r r r# r# r$ � set_protocolE s z'_ProactorBasePipeTransport.set_protocolc C s | j S)N)r )r r# r# r$ � get_protocolH s z'_ProactorBasePipeTransport.get_protocolc C s | j S)N)r )r r# r# r$ � is_closingK s z%_ProactorBasePipeTransport.is_closingc C s} | j r d Sd | _ | j d 7_ | j rT | j d k rT | j j | j d � | j d k ry | j j � d | _ d S)NTr ) r r r r r r �_call_connection_lostr �cancel)r r# r# r$ �closeN s z _ProactorBasePipeTransport.closec C s1 | j d k r- t j d | t � | j � d S)Nzunclosed transport %r)r �warnings�warn�ResourceWarningr7 )r r# r# r$ �__del__] s z"_ProactorBasePipeTransport.__del__z Fatal error on pipe 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: %s�exc_infoT�message� exceptionZ transportr ) � isinstancer Z_FATAL_ERROR_IGNOREr � get_debugr �debug�call_exception_handlerr � _force_close)r �excr= r# r# r$ � _fatal_errorb s z'_ProactorBasePipeTransport._fatal_errorc C s� | j r d Sd | _ | j d 7_ | j rD | j j � d | _ | j rc | j j � d | _ d | _ d | _ | j j | j | � d S)NTr r ) r r r r6 r r r r r r5 )r rD r# r# r$ rC o s z'_ProactorBasePipeTransport._force_closec C s z | j j | � Wd t | j d � r< | j j t j � | j j � d | _ | j } | d k rz | j � d | _ Xd S)N�shutdown) r Zconnection_lost�hasattrr rF �socketZ SHUT_RDWRr7 r Z_detach)r rD r! r# r# r$ r5 ~ s z0_ProactorBasePipeTransport._call_connection_lostc C s/ | j } | j d k r+ | t | j � 7} | 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 r3 r4 r7 r ZPY34r; rE rC r5 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 sV | j r t d � � | j r* t d � � d | _ | j j � rR t j d | � 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 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) 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 } z�y� | d k rg | j | k sR | j d k rL | j sR t � d | _ | j � } | j rz d } d S| d k r� d S| j j j | j d � | _ Wn� t k r} zC | j s� | j | d � n" | j j � r� t j d d d �WYd d } ~ Xn� t k r?} z | j | � WYd d } ~ Xnh t k rs} z | j | d � WYd d } ~ Xn4 t j k r�| j s�� Yn X| j j | j � Wd | r�| j j | � nJ | d k r| j j � r�t j d | � | j j � } | s| j � Xd S)N� i z"Fatal read error on pipe transportz*Read error on pipe transport while closingr< Tz%r received EOF)rO r r �AssertionError�resultr � _proactor�recvr �ConnectionAbortedErrorrE r@ r rA �ConnectionResetErrorrC �OSErrorr �CancelledError�add_done_callbackrP r Z data_receivedZ eof_receivedr7 )r �fut�datarD Z keep_openr# r# r$ rP � sJ " " 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 � s7 d t | � j } t | � � | j rL t d � � | sV d S| j r� | j t j k r~ t j d � | j d 7_ d S| j d k r� | j d k s� t � | j d t | � � n? | j s� t | � | _ | j � n | j j | � | j � d S)Nz3data argument must be a bytes-like object, not '%s'zwrite_eof() already calledz socket.send() raised exception.r r_ )r? �bytes� bytearray� memoryview�typer( � TypeErrorr rQ r r Z!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr r rU � _loop_writing�_maybe_pause_protocol�extend)r r_ �msgr# r# r$ �write� s* z%_ProactorBaseWritePipeTransport.writeNc C s� y+| | j k s t � d | _ d | _ | r: | j � | d k rX | j } d | _ | s� | j r} | j j | j d � | j r� | j j t j � | j � n� | j j j | j | � | _ | j j � s| j d k s� t � t | � | _ | j j | j � | j � n | j j | j � Wnf t k r_} z | j | � WYd d } ~ Xn5 t k r�} z | j | d � WYd d } ~ Xn Xd S)Nr z#Fatal write error on pipe transport)r rU r rV r r r r r5 r r rF rH �SHUT_WRZ_maybe_resume_protocolrW �send�doner+ r] rg rh rZ rC r[ rE )r �fr_ rD r# r# r$ rg s4 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)r7 )r r# r# r$ � write_eof2 s z)_ProactorBaseWritePipeTransport.write_eofc C s | j d � d S)N)rC )r r# r# r$ �abort5 s z%_ProactorBaseWritePipeTransport.abort) r( rK rL rM rk rg rp rq rr r# r# r# r$ r` � s $# r` c s. e Z d Z � f d d � Z d d � Z � S)�_ProactorWritePipeTransportc sH t � j | | � | j j j | j d � | _ | j j | j � d S)N� ) r r r rW rX r r r] � _pipe_closed)r �args�kw)r" r# r$ r : s z$_ProactorWritePipeTransport.__init__c C s� | j � r d S| j � d k s( t � | j rJ | j d k sF t � d S| | j k sn t | | j f � � d | _ | j d k r� | j t � � n | j � d S)NrT ) Z cancelledrV rU r r r rC �BrokenPipeErrorr7 )r r^ r# r# r$ ru ? s $ z(_ProactorWritePipeTransport._pipe_closed)r( rK rL r ru r# r# )r" r$ rs 9 s rs 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$ rp T s z*_ProactorDuplexPipeTransport.can_write_eofc C s t � d S)N)�NotImplementedError)r r# r# r$ rq W s z&_ProactorDuplexPipeTransport.write_eofN)r( rK rL rM rp rq r# r# r# r$ ry O s ry 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 <Wn@ t j t f k rf | j j � rb t j d | d d �Yn Xd | j k r� y | j � | j d <Wn@ t j t f k r� | j j � r� t j d | d d �Yn Xd S)NrH Zsocknamezgetsockname() failed on %rr< T�peernamezgetpeername() failed on %r) r1 Z getsocknamerH �error�AttributeErrorr r@ r rf Z getpeername)r r r# r# r$ r ` s z#_ProactorSocketTransport._set_extrac C s d S)NTr# )r r# r# r$ rp p s z&_ProactorSocketTransport.can_write_eofc C sE | j s | j r d Sd | _ | j d k rA | j j t j � d S)NT)r r r r rF rH rl )r r# r# r$ rq s s z"_ProactorSocketTransport.write_eofN)r( rK rL rM r rp rq r# r# r# r$ r{ [ s r{ c sN 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( d) � Z d* d+ � Z d, d- � Z d. d/ � Z � S)0r c sb t � j � t j d | j j � | | _ | | _ d | _ i | _ | j | � | j � d S)NzUsing proactor: %s) r r r rA r" r( rW � _selector�_self_reading_future�_accept_futuresZset_loop�_make_self_pipe)r Zproactor)r" r# r$ r } s z BaseProactorEventLoop.__init__Nc C s t | | | | | | � S)N)r{ )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 sY t j � s t d � � 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_availablerz Z SSLProtocolr{ 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)ry )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)rs )r r r r r r# r# r$ �_make_write_pipe_transport� s z0BaseProactorEventLoop._make_write_pipe_transportc sl | j � r t d � � | 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_piperW r7 r r )r )r" r# r$ r7 � s zBaseProactorEventLoop.closec C s | j j | | � S)N)rW rX )r r �nr# r# r$ � sock_recv� s z BaseProactorEventLoop.sock_recvc C s | j j | | � S)N)rW rm )r r r_ r# r# r$ � sock_sendall� s z"BaseProactorEventLoop.sock_sendallc C s | j j | | � S)N)rW Zconnect)r r Zaddressr# r# r$ � sock_connect� s z"BaseProactorEventLoop.sock_connectc C s | j j | � S)N)rW �accept)r r r# r# r$ � sock_accept� s z!BaseProactorEventLoop.sock_acceptc C s t � d S)N)rz )r r# r# r$ � _socketpair� s z!BaseProactorEventLoop._socketpairc C sd | j d k r% | j j � d | _ | j j � d | _ | j j � d | _ | j d 8_ d S)Nr )r� r6 �_ssockr7 �_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� y2 | d k r | j � | j j | j d � } Wn\ t j k rM d SYn] t k r� } z$ | j d d d | d | i � WYd d } ~ Xn X| | _ | j | j � d S)Ni r= z.Error on reading from the event loop self piper> r ) rV rW rX r� r r\ � ExceptionrB r� r] r� )r ro rD r# r# r$ r� � s z(BaseProactorEventLoop._loop_self_readingc C s | j j d � d S)Ns )r� rm )r r# r# r$ �_write_to_self� s z$BaseProactorEventLoop._write_to_self�d c s5 d � � � � � � f d d � � � j � � d S)Nc s� y� | d k r� | j � \ } } � j r@ t j d � | | � � � } � d k r� � j | | � d d d d | i d � �n" � j | | d d | i d � �� j � r� d S� j j � � } Wn� t k rL} zb � j � d k r� j d d d | d � i � � j � n � j r:t j d � d d �WYd d } ~ Xn? t j k rj� j � Yn! X| � j � j � <| j � � d S)Nz#%r got a new connection from %r: %rr� Tr r| r! r r= zAccept failed on a socketr> rH zAccept failed on socket %rr< ���)rV Z_debugr rA r� r� r� rW r� r[ r* rB r7 r r\ r� r] )ro ZconnZaddrr rD )r �protocol_factoryr r! r r� r# r$ r � s> z2BaseProactorEventLoop._start_serving.<locals>.loop)r )r r� r r� r! Zbacklogr# )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� �valuesr6 �clear)r Zfuturer# r# r$ r� s z*BaseProactorEventLoop._stop_accept_futuresc C s( | j � | j j | � | j � d S)N)r� rW � _stop_servingr7 )r r r# r# r$ r� # s z#BaseProactorEventLoop._stop_serving)r( rK rL r r� r� r� r� r� r7 r� r� r� r� r� r� r� r� r� r� r� r� r� r# r# )r" r$ r { s4 ( )rM �__all__rH r8 � r r r r r r �logr Z_FlowControlMixinZ BaseTransportr Z ReadTransportrN ZWriteTransportr` rs Z Transportry r{ Z BaseEventLoopr r# r# r# r$ �<module> s0 � M T
Save File
Cancel