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Exercises in Programming Style
book

Exercises in Programming Style

by Cristina Videira Lopes
November 2015
Intermediate to advanced content levelIntermediate to advanced
304 pages
5h 23m
English
Chapman and Hall/CRC
Content preview from Exercises in Programming Style

Chapter 28

Actors

image

Similar to the Letterbox style (Chapter 11), but where the things have independent threads of execution.

28.1 Constraints

  • The larger problem is decomposed into things that make sense for the problem domain.
  • Each thing has a queue meant for other things to place messages in it.
  • Each thing is a capsule of data that exposes only its ability to receive messages via the queue.
  • Each thing has its own thread of execution independent of the others.

28.2 A Program in this Style

  1 #!/usr/bin/env python
  2
  3 import sys, re, operator, string
  4 from threading import Thread
  5 from Queue import Queue
  6
  7 class ActiveWFObject(Thread):
  
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Publisher Resources

ISBN: 9781482227376