<s> from __future__ import print_function <EOL> import time <EOL> import sys <EOL> import guild <EOL> from guild . actor import * <EOL> guild . init ( ) <EOL> class Splitter ( Actor ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self ) : <EOL> super ( Splitter , self ) . __init__ ( ) <EOL> self . subscribers = [ ] <EOL> self . bridge_subscribers = [ ] <EOL> @ actor_method <EOL> def subscribe ( self , callback ) : <EOL> self . subscribers . append ( callback ) <EOL> @ actor_method <EOL> def subscribe_bridge ( self , callback ) : <EOL> self . bridge_subscribers . append ( callback ) <EOL> @ actor_method <EOL> def unsubscribe ( self , callback ) : <EOL> self . subscribers = [ x for x in self . subscribers if x != callback ] <EOL> @ actor_method <EOL> def unsubscribe_bridge ( self , callback ) : <EOL> self . bridge_subscribers = [ x for x in self . bridge_subscribers if x != callback ] <EOL> @ actor_method <EOL> def publish ( self , data ) : <EOL> for subscriber in self . subscribers : <EOL> subscriber ( data ) <EOL> for subscriber in self . bridge_subscribers : <EOL> subscriber ( data ) <EOL> @ actor_method <EOL> def publish_bridge ( self , data ) : <EOL> for subscriber in self . subscribers : <EOL> subscriber ( data ) <EOL> input = publish <EOL> def Backplane ( name ) : <EOL> plane = Splitter ( ) <EOL> guild . register ( name , plane ) <EOL> return plane <EOL> def PublishTo ( name ) : <EOL> splitter = guild . lookup ( name ) <EOL> return splitter <EOL> class SubscribeTo ( Actor ) : <EOL> def __init__ ( self , name ) : <EOL> super ( SubscribeTo , self ) . __init__ ( ) <EOL> self . name = name <EOL> def process_start ( self ) : <EOL> tries = <NUM_LIT:0> <EOL> while True : <EOL> splitter = guild . lookup ( self . name ) <EOL> if splitter is None : <EOL> tries += <NUM_LIT:1> <EOL> time . sleep ( <NUM_LIT> ) <EOL> if tries > <NUM_LIT:100> : <EOL> raise Exception ( "<STR_LIT>" ) <EOL> else : <EOL> break <EOL> splitter . subscribe ( self . input ) <EOL> @ actor_method <EOL> def input ( self , value ) : <EOL> self . output ( value ) <EOL> @ late_bind_safe <EOL> def output ( self , value ) : <EOL> pass <EOL> class Printer ( Actor ) : <EOL> @ actor_method <EOL> def input ( self , line ) : <EOL> if isinstance ( line , str ) : <EOL> sys . stdout . write ( line ) <EOL> else : <EOL> sys . stdout . write ( "<STR_LIT:U+0020>" . join ( [ str ( x ) for x in line ] ) ) <EOL> sys . stdout . write ( "<STR_LIT:\n>" ) <EOL> sys . stdout . flush ( ) <EOL> @ late_bind_safe <EOL> def output ( self , line ) : <EOL> print ( "<STR_LIT>" , line ) <EOL> if __name__ == "<STR_LIT:__main__>" : <EOL> class producer ( Actor ) : <EOL> @ process_method <EOL> def process ( self ) : <EOL> try : <EOL> self . Print ( "<STR_LIT>" ) <EOL> except UnboundActorMethod : <EOL> pass <EOL> @ late_bind <EOL> def Print ( self , message ) : <EOL> pass <EOL> class consumer ( Actor ) : <EOL> @ actor_method <EOL> def consume ( self , what ) : <EOL> print ( "<STR_LIT>" , what , self ) <EOL> p = producer ( ) <EOL> c = consumer ( ) <EOL> c2 = consumer ( ) <EOL> c3 = consumer ( ) <EOL> s = Splitter ( ) <EOL> s . start ( ) <EOL> p . bind ( "<STR_LIT>" , s , "<STR_LIT>" ) <EOL> s . subscribe ( c . consume ) <EOL> s . subscribe ( c2 . consume ) <EOL> s . subscribe ( c3 . consume ) <EOL> p . start ( ) <EOL> c . start ( ) <EOL> c2 . start ( ) <EOL> c3 . start ( ) <EOL> time . sleep ( <NUM_LIT:0.1> ) <EOL> p . stop ( ) <EOL> c . stop ( ) <EOL> p . join ( ) <EOL> c . join ( ) </s>
