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��Yf�N � @ s d 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 d d l m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z e e e e e e e h � Z y e Wn e k r� i Z Yn Xd d � Z Gd d � d e � Z e e e f Z d d � Z d d � Z d d � Z! d d � Z" d d d d � Z# d d d d � Z$ e$ Z% d d d d d d � Z& Gd d � d � Z' Gd d � d e' � Z( d d � Z) d d d d � Z* e j+ d! k r Gd" d# � d# � Z, Gd$ d% � d% e' � Z- d S)&a� Basic infrastructure for asynchronous socket service clients and servers. There are only two ways to have a program on a single processor do "more than one thing at a time". Multi-threaded programming is the simplest and most popular way to do it, but there is another very different technique, that lets you have nearly all the advantages of multi-threading, without actually using multiple threads. it's really only practical if your program is largely I/O bound. If your program is CPU bound, then pre-emptive scheduled threads are probably what you really need. Network servers are rarely CPU-bound, however. If your operating system supports the select() system call in its I/O library (and nearly all do), then you can use it to juggle multiple communication channels at once; doing other work while your I/O is taking place in the "background." Although this strategy can seem strange and complex, especially at first, it is in many ways easier to understand and control than multi-threaded programming. The module documented here solves many of the difficult problems for you, making the task of building sophisticated high-performance network servers and clients a snap. � N) �EALREADY� EINPROGRESS� EWOULDBLOCK� ECONNRESET�EINVAL�ENOTCONN� ESHUTDOWN�EISCONN�EBADF� ECONNABORTED�EPIPE�EAGAIN� errorcodec C sO y t j | � SWn7 t t t f k rJ | t k r> t | Sd | SYn Xd S)NzUnknown error %s)�os�strerror� ValueError� OverflowError� NameErrorr )�err� r �-/opt/alt/python35/lib64/python3.5/asyncore.py� _strerrorD s r c @ s e Z d Z d S)�ExitNowN)�__name__� __module__� __qualname__r r r r r L s r c C s; y | j � Wn& t k r% � Yn | j � Yn Xd S)N)�handle_read_event�_reraised_exceptions� handle_error)�objr r r �readQ s r c C s; y | j � Wn& t k r% � Yn | j � Yn Xd S)N)�handle_write_eventr r )r r r r �writeY s r" c C s; y | j � Wn& t k r% � Yn | j � Yn Xd S)N)�handle_expt_eventr r )r r r r � _exceptiona s r$ c C s� yn | t j @r | j � | t j @r1 | j � | t j @rH | j � | t j t j Bt j B@rm | j � Wnt t k r� } z/ | j d t k r� | j � n | j � WYd d } ~ Xn& t k r� � Yn | j � Yn Xd S)Nr )�select�POLLINr �POLLOUTr! �POLLPRIr# ZPOLLHUPZPOLLERRZPOLLNVAL� handle_close�OSError�args� _DISCONNECTEDr r )r �flags�er r r � readwritei s" r/ g c C s� | d k r t } | r�g } g } g } x� t | j � � D]m \ } } | j � } | j � } | rt | j | � | r� | j r� | j | � | s� | r= | j | � q= Wg | k o� | k o� | k n r� t j | � d St j | | | | � \ } } } x6 | D]. } | j | � } | d k r2qt | � qWx6 | D]. } | j | � } | d k rkqGt | � qGWx6 | D]. } | j | � } | d k r�q�t | � q�Wd S)N)� socket_map�list�items�readable�writable�append� accepting�timeZsleepr% �getr r" r$ ) �timeout�map�r�wr. �fdr Zis_rZis_wr r r �poll} sD ' ! r> c C s | d k r t } | d k r. t | d � } t j � } | rx t | j � � D]k \ } } d } | j � r� | t j t j BO} | j � r� | j r� | t j O} | rS | j | | � qS W| j | � } x? | D]7 \ } } | j | � } | d k rq� t | | � q� Wd S)Ni� r )r0 �intr% r> r1 r2 r3 r& r( r4 r6 r' �registerr8 r/ )r9 r: Zpollsterr= r r- r; r r r �poll2� s( rA g >@Fc C s� | d k r t } | r0 t t d � r0 t } n t } | d k r_ xJ | r[ | | | � qE Wn0 x- | r� | d k r� | | | � | d } qb Wd S)Nr> r � )r0 �hasattrr% rA r> )r9 Zuse_pollr: �countZpoll_funr r r �loop� s rE c @ s� e Z d Z d Z d Z d Z d Z d Z d Z e d h � Z d d d d � Z d d � Z e Z d d d � Z d d d � Z e j e j 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 d d � Z d d! � Z d" d# � Z d$ d% � Z d& d' d( � Z d) d* � Z! d+ d, � Z" d- d. � Z# d/ d0 � Z$ d1 d2 � Z% d3 d4 � Z& d5 d6 � Z' d7 d8 � Z( d9 d: � Z) d; d< � Z* d= d> � Z+ d? d@ � Z, d S)A� dispatcherFN�warningc C s� | d k r t | _ n | | _ d | _ | r� | j d � | j | | � d | _ y | j � | _ Wq� t k r� } z: | j d t t f k r� d | _ n | j | � � WYd d } ~ Xq� Xn d | _ d S)Nr TF)r0 �_map�_fileno� setblocking� set_socket� connectedZ getpeername�addrr* r+ r r � del_channel�socket)�self�sockr: r r r r �__init__� s zdispatcher.__init__c C s� | j j d | j j g } | j r? | j r? | j d � n | j rU | j d � | j d k r� y | j d | j � Wn( t k r� | j t | j � � Yn Xd d j | � t | � f S)N�.Z listeningrL z%s:%dz <%s at %#x>� ) � __class__r r r6 rM r5 rL � TypeError�repr�join�id)rP Zstatusr r r �__repr__� s zdispatcher.__repr__c C s& | d k r | j } | | | j <d S)N)rH rI )rP r: r r r � add_channel s zdispatcher.add_channelc C s> | j } | d k r | j } | | k r1 | | =d | _ d S)N)rI rH )rP r: r= r r r rN s zdispatcher.del_channelc C s? | | f | _ t j | | � } | j d � | j | � d S)Nr )Zfamily_and_typerO rJ rK )rP Zfamily�typerQ r r r � create_socket s zdispatcher.create_socketc C s) | | _ | j � | _ | j | � d S)N)rO �filenorI r[ )rP rQ r: r r r rK s zdispatcher.set_socketc C sR y9 | j j t j t j | j j t j t j � d B� Wn t k rM Yn Xd S)NrB )rO Z setsockopt� SOL_SOCKETZ SO_REUSEADDR� getsockoptr* )rP r r r �set_reuse_addr& s zdispatcher.set_reuse_addrc C s d S)NTr )rP r r r r3 7 s zdispatcher.readablec C s d S)NTr )rP r r r r4 : s zdispatcher.writablec C s: d | _ t j d k r* | d k r* d } | j j | � S)NT�nt� )r6 r �namerO �listen)rP Znumr r r re A s zdispatcher.listenc C s | | _ | j j | � S)N)rM rO �bind)rP rM r r r rf G s zdispatcher.bindc C s� d | _ d | _ | j j | � } | t t t f k sT | t k ra t j d k ra | | _ d S| d t f k r� | | _ | j � n t | t | � � d S)NFTrb �cer )rb rg )rL � connectingrO Z connect_exr r r r r rd rM r �handle_connect_eventr* r )rP Zaddressr r r r �connectK s zdispatcher.connectc C s� y | j j � \ } } Wn] t k r1 d SYnR t k rx } z( | j d t t t f k rc d S� WYd d } ~ Xn X| | f Sd S)Nr )rO �acceptrV r* r+ r r r )rP ZconnrM �whyr r r rk Y s zdispatcher.acceptc C s� y | j j | � } | SWn` t k r| } z@ | j d t k rF d S| j d t k rg | j � d S� WYd d } ~ Xn Xd S)Nr )rO �sendr* r+ r r, r) )rP �data�resultrl r r r rm g s zdispatcher.sendc C s~ y. | j j | � } | s) | j � d S| SWnI t k ry } z) | j d t k rd | j � d S� WYd d } ~ Xn Xd S)N� r )rO �recvr) r* r+ r, )rP Z buffer_sizern rl r r r rq t s zdispatcher.recvc C s� d | _ d | _ d | _ | j � | j d k r� y | j j � WnA t k r� } z! | j d t t f k rv � WYd d } ~ Xn Xd S)NFr ) rL r6 rh rN rO �closer* r+ r r )rP rl r r r rr � s zdispatcher.closec C s t j j d t | � � d S)Nzlog: %s )�sys�stderrr" �str)rP �messager r r �log� s zdispatcher.log�infoc C s' | | j k r# t d | | f � d S)Nz%s: %s)�ignore_log_types�print)rP rv r\ r r r �log_info� s zdispatcher.log_infoc C sM | j r | j � n3 | j s? | j r2 | j � | j � n | j � d S)N)r6 � handle_acceptrL rh ri � handle_read)rP r r r r � s z dispatcher.handle_read_eventc C s\ | j j t j t j � } | d k r< t | t | � � � | j � d | _ d | _ d S)Nr TF) rO r` r_ �SO_ERRORr* r �handle_connectrL rh )rP r r r r ri � s z dispatcher.handle_connect_eventc C s7 | j r d S| j s) | j r) | j � | j � d S)N)r6 rL rh ri � handle_write)rP r r r r! � s z dispatcher.handle_write_eventc C sB | j j t j t j � } | d k r4 | j � n | j � d S)Nr )rO r` r_ r~ r) � handle_expt)rP r r r r r# � s z dispatcher.handle_expt_eventc C sn t � \ } } } } y t | � } Wn d t | � } Yn X| j d | | | | f d � | j � d S)Nz)<__repr__(self) failed for object at %0x>z:uncaptured python exception, closing channel %s (%s:%s %s)�error)�compact_tracebackrW rY r{ r) )rP Znil�t�v�tbinfoZ self_reprr r r r � s zdispatcher.handle_errorc C s | j d d � d S)Nz!unhandled incoming priority eventrG )r{ )rP r r r r� � s zdispatcher.handle_exptc C s | j d d � d S)Nzunhandled read eventrG )r{ )rP r r r r} � s zdispatcher.handle_readc C s | j d d � d S)Nzunhandled write eventrG )r{ )rP r r r r� � s zdispatcher.handle_writec C s | j d d � d S)Nzunhandled connect eventrG )r{ )rP r r r r � s zdispatcher.handle_connectc C s) | j � } | d k r% | j | � d S)N)rk �handle_accepted)rP Zpairr r r r| � s zdispatcher.handle_acceptc C s | j � | j d d � d S)Nzunhandled accepted eventrG )rr r{ )rP rQ rM r r r r� � s zdispatcher.handle_acceptedc C s | j d d � | j � d S)Nzunhandled close eventrG )r{ rr )rP r r r r) � s zdispatcher.handle_close)-r r r �debugrL r6 rh �closingrM � frozensetry rR rZ �__str__r[ rN rO ZAF_INETZ SOCK_STREAMr] rK ra r3 r4 re rf rj rk rm rq rr rw r{ r ri r! r# r r� r} r� r r| r� r) r r r r rF � sL rF c @ sR e Z d Z d d d d � Z d d � Z d d � Z d d � Z d d � Z d S) �dispatcher_with_sendNc C s t j | | | � d | _ d S)Nrp )rF rR � out_buffer)rP rQ r: r r r rR � s z dispatcher_with_send.__init__c C s? d } t j | | j d d � � } | j | d � | _ d S)Nr i )rF rm r� )rP Znum_sentr r r � initiate_send s z"dispatcher_with_send.initiate_sendc C s | j � d S)N)r� )rP r r r r� s z!dispatcher_with_send.handle_writec C s | j p t | j � S)N)rL �lenr� )rP r r r r4 s z dispatcher_with_send.writablec C s> | j r | j d t | � � | j | | _ | j � d S)Nz sending %s)r� r{ rW r� r� )rP rn r r r rm s zdispatcher_with_send.send)r r r rR r� r� r4 rm r r r r r� � s r� c C s� t j � \ } } } g } | s- t d � � xD | rs | j | j j j | j j j t | j � f � | j } q0 W~ | d \ } } } d j d d � | D� � } | | | f | | | f S)Nztraceback does not existrB rT c S s g | ] } d | � q S)z [%s|%s|%s]r )�.0�xr r r � <listcomp>) s z%compact_traceback.<locals>.<listcomp>���) rs �exc_info�AssertionErrorr5 �tb_frame�f_code� co_filename�co_nameru � tb_lineno�tb_nextrX )r� r� �tbr� �fileZfunction�linerx r r r r� s r� c C s� | d k r t } x� t | j � � D] } y | j � Wq% t k r } z$ | j d t k rd n | sm � WYd d } ~ Xq% t k r� � Yq% | s� � Yq% Xq% W| j � d S)Nr ) r0 r1 �valuesrr r* r+ r r �clear)r: Z ignore_allr� r r r � close_all, s r� �posixc @ ss e Z d Z d d � Z d d � Z d d � Z d d � Z d d d � Z e Z e Z d d � Z d d � Z d S)� file_wrapperc C s t j | � | _ d S)N)r �dupr= )rP r= r r r rR Q s zfile_wrapper.__init__c C s1 | j d k r# t j d | t � | j � d S)Nr zunclosed file %r)r= �warnings�warn�ResourceWarningrr )rP r r r �__del__T s zfile_wrapper.__del__c G s t j | j | � S)N)r r r= )rP r+ r r r rq Y s zfile_wrapper.recvc G s t j | j | � S)N)r r" r= )rP r+ r r r rm \ s zfile_wrapper.sendNc C s9 | t j k r) | t j k r) | r) d St d � � d S)Nr z-Only asyncore specific behaviour implemented.)rO r_ r~ �NotImplementedError)rP �levelZoptnameZbuflenr r r r` _ s zfile_wrapper.getsockoptc C s0 | j d k r d St j | j � d | _ d S)Nr rB r� )r= r rr )rP r r r rr j s zfile_wrapper.closec C s | j S)N)r= )rP r r r r^ p s zfile_wrapper.fileno) r r r rR r� rq rm r` r r" rr r^ r r r r r� L s r� c @ s+ e Z d Z d d d � Z d d � Z d S)�file_dispatcherNc C sb t j | d | � d | _ y | j � } Wn t k r@ Yn X| j | � t j | d � d S)NTF)rF rR rL r^ �AttributeError�set_filer � set_blocking)rP r= r: r r r rR u s zfile_dispatcher.__init__c C s/ t | � | _ | j j � | _ | j � d S)N)r� rO r^ rI r[ )rP r= r r r r� � s zfile_dispatcher.set_file)r r r rR r� r r r r r� s s r� ).�__doc__r% rO rs r7 r� r �errnor r r r r r r r r r r r r r� r, r0 r r � Exceptionr �KeyboardInterrupt� SystemExitr r r" r$ r/ r> rA Zpoll3rE rF r� r� r� rd r� r� r r r r �<module>/ s@ X '� , '
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