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//usr/lib/python2.4/asynchat.pyo
mò ‚=5Dc @ sq d Z d k Z d k Z d k l Z d e i f d „ ƒ YZ d f d „ ƒ YZ d f d „ ƒ 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. N( s dequet async_chatc B s t Z d Z d Z d Z e 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. You must derive from this class, and add the two methods collect_incoming_data() and found_terminator()i c C s5 d | _ d | _ t ƒ | _ t i i | | ƒ d S( Nt ( t selft ac_in_buffert ac_out_buffert fifot producer_fifot asyncoret dispatchert __init__t conn( R R ( ( t /usr/lib/python2.4/asynchat.pyR > s c C s t d ‚ d S( Ns must be implemented in subclass( t NotImplementedError( R t data( ( R t collect_incoming_dataD s c C s t d ‚ d S( Ns must be implemented in subclass( R ( R ( ( R t found_terminatorG s c C s | | _ d S( sR Set the input delimiter. Can be a fixed string of any length, an integer, or NoneN( t termR t terminator( R R ( ( R t set_terminatorJ s c C s | i S( N( R R ( R ( ( R t get_terminatorN s c C s" y | i | i ƒ } Wn& t i j o } | i ƒ d Sn X| i | | _ xÌ| i oÁt | i ƒ } | i ƒ } | d j p | d j o | i | i ƒ d | _ qR t | t ƒ o{ | } | | j o- | i | i ƒ d | _ | i | | _ q| i | i | ƒ | i | | _ d | _ | i ƒ qR t | ƒ } | i i | ƒ } | d j oG | d j o | i | i | ƒ n | i | | | _ | i ƒ qR t | i | ƒ } | o< | | j o* | i | i | ƒ | i | | _ n PqR | i | i ƒ d | _ qR Wd S( NR i iÿÿÿÿ( R t recvt ac_in_buffer_sizeR t sockett errort whyt handle_errorR t lent lbR R t NoneR t isinstancet intt nR t terminator_lent findt indext find_prefix_at_end( R R" R R R R R R ( ( R t handle_readV sL c C s | i ƒ d S( N( R t initiate_send( R ( ( R t handle_write˜ s c C s | i ƒ d S( N( R t close( R ( ( R t handle_close› s c C s$ | i i t | ƒ ƒ | i ƒ d S( N( R R t pusht simple_producerR R% ( R R ( ( R R) ž s c C s | i i | ƒ | i ƒ d S( N( R R R) t producerR% ( R R+ ( ( R t push_with_producer¢ s c C s t | i ƒ | i j S( s4 predicate for inclusion in the readable for select()N( R R R R ( R ( ( R t readable¦ s c C s( | i d j o | i i ƒ o | i S( s4 predicate for inclusion in the writable for select()R N( R R R t is_emptyt connected( R ( ( R t writableª s c C s | i i d ƒ d S( sA automatically close this channel once the outgoing queue is emptyN( R R R) R ( R ( ( R t close_when_done´ s c C sÚ xÓ t | i ƒ oº | i i ƒ } | d j o- | i p | i i ƒ | i ƒ n d Sn6 t | t ƒ o% | i i ƒ | i | | _ d Sn | i ƒ } | o | i | | _ d SqÑ | i i ƒ q d Sq Wd S( Ni ( R R R t firstt pR R t popR' R t strt moreR ( R R3 R ( ( R t refill_bufferº s& c C s§ | i } t | i ƒ | j o | i ƒ n | i ol | i ob y5 | i | i | ƒ } | o | i | | _ n Wq£ t i j o } | i ƒ d Sq£ Xn d S( N( R t ac_out_buffer_sizet obsR R R7 R/ t sendt num_sentR R R R ( R R9 R R; ( ( R R% Ò s c C s5 d | _ d | _ x | i o | i i ƒ q Wd S( NR ( R R R R R4 ( R ( ( R t discard_buffersã s ( t __name__t __module__t __doc__R R8 R R R R R R R$ R& R( R) R, R- R0 R1 R7 R% R< ( ( ( R R 5 s& B R* c B s t Z d d „ Z d „ Z RS( Ni c C s | | _ | | _ d S( N( R R t buffer_size( R R R@ ( ( R R í s c C s^ t | i ƒ | i j o+ | i | i } | i | i | _ | Sn | i } d | _ | Sd S( NR ( R R R R@ t result( R RA ( ( R R6 ñ s ( R= R> R R6 ( ( ( R R* ë s R c B sA t Z d d „ Z d „ Z d „ Z d „ Z d „ Z d „ Z RS( Nc C s* | p t ƒ | _ n t | ƒ | _ d S( N( t listt dequeR ( R RB ( ( R R ü s c C s t | i ƒ S( N( R R RB ( R ( ( R t __len__ s c C s | i S( N( R RB ( R ( ( R R. s c C s | i d S( Ni ( R RB ( R ( ( R R2 s c C s | i i | ƒ d S( N( R RB t appendR ( R R ( ( R R) s c C s) | i o d | i i ƒ f Sn d Sd S( Ni i ( i N( R RB t popleftR ( R ( ( R R4 s ( R= R> R R RD R. R2 R) R4 ( ( ( R R û s c C sB t | ƒ d } x+ | o# | i | | ƒ o | d 8} q W| S( Ni ( R t needlet lt haystackt endswith( RI RG RH ( ( R R# # s ( R? R R t collectionsRC R R R* R R# ( RC R R R# R* R R ( ( R t ?/ s ¶(