관리-도구
편집 파일: asyncore.cpython-35.pyc
��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? 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