I'm preparing a presentation about asynchronous concurrency in
Clojure, and I'm planning on talking a bit about how Clojure's
constructs make good, sensible use of Java's concurrency libraries. My
question is about clojure.lang.Agent. In the doRun method, I'm missing
what prevents a race condition in the updating of the agent's state
variable.
This code in doRun seems to be a classic read-and-write operation:
Object oldval = action.agent.state;
Object newval = action.fn.applyTo(
RT.cons(action.agent.state, action.args));
action.agent.setState(newval);
doRun is not synchronized. As far as I can tell, Executors don't
synchronize the execution of runnable objects. What am I missing?
BTW, I have to say, it's really fun to read the Java code in src/jvm/
clojure.
Cheers,
Michael
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
