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asynchat.pyo
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� z fc @ s� d Z d d l Z d d l Z d d l Z d d l m Z d d l m Z d d l m Z m Z e j e j e j e j f Z d e j f d � � YZ d d d � � YZ d d d � � YZ d � Z d S( s� A class supporting chat-style (command/response) protocols. This class adds support for 'chat' style protocols - where one side sends a 'command', and the other sends a response (examples would be the common internet protocols - smtp, nntp, ftp, etc..). The handle_read() method looks at the input stream for the current 'terminator' (usually '\r\n' for single-line responses, '\r\n.\r\n' for multi-line output), calling self.found_terminator() on its receipt. for example: Say you build an async nntp client using this class. At the start of the connection, you'll have self.terminator set to '\r\n', in order to process the single-line greeting. Just before issuing a 'LIST' command you'll set it to '\r\n.\r\n'. The output of the LIST command will be accumulated (using your own 'collect_incoming_data' method) up to the terminator, and then control will be returned to you - by calling your self.found_terminator() method. i����N( t deque( t py3kwarning( t filterwarningst catch_warningst async_chatc B s� e Z d Z d Z d Z d d d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s� This is an abstract class. 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R0 R2 R7 R9 R: R< R> R/ RJ ( ( ( s /usr/lib64/python2.7/asynchat.pyR < s( D (t simple_producerc B s e Z d d � Z d � Z RS( i c C s | | _ | | _ d S( N( R t buffer_size( R R RO ( ( s /usr/lib64/python2.7/asynchat.pyR s c C sY t | j � | j k r? | j | j } | j | j | _ | S| j } d | _ | Sd S( NR ( R# R RO ( R t result( ( s /usr/lib64/python2.7/asynchat.pyRC s ( RK RL R RC ( ( ( s /usr/lib64/python2.7/asynchat.pyRN s t fifoc B sA e Z d d � Z d � Z d � Z d � Z d � Z d � Z RS( c C s( | s t � | _ n t | � | _ d S( N( R t list( R RR ( ( s /usr/lib64/python2.7/asynchat.pyR s c C s t | j � S( N( R# RR ( R ( ( s /usr/lib64/python2.7/asynchat.pyt __len__ s c C s | j S( N( RR ( R ( ( s /usr/lib64/python2.7/asynchat.pyt is_empty s c C s | j d S( Ni ( RR ( R ( ( s /usr/lib64/python2.7/asynchat.pyRF " s c C s | j j | � d S( N( RR R ( R R ( ( s /usr/lib64/python2.7/asynchat.pyR7 % s c C s$ | j r d | j j � f Sd Sd S( Ni i ( i N( RR t popleftR= ( R ( ( s /usr/lib64/python2.7/asynchat.pyt pop( s N( RK RL R= R RS RT RF R7 RV ( ( ( s /usr/lib64/python2.7/asynchat.pyRQ s c C s? t | � d } x( | r: | j | | � r: | d 8} q W| S( Ni ( R# t endswith( t haystackt needlet l( ( s /usr/lib64/python2.7/asynchat.pyR( = s ( ( ( RM R t errnoR t collectionsR t sysR t warningsR R t EAGAINt EALREADYt EINPROGRESSt EWOULDBLOCKR! 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