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Re: Non-blocking asynchronous execution

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Arnold Doray <invalid@invalid.com> writes:
> This isn't about multi-tasking, although that is an interesting problem 
> too. It's about scheduling tasks to occur at predefined times in the user 
> application. 

Yes, you usually do that by stopping a task, and arranging for it to be
restarted at the desired time by another task (perhaps abstracted into
the language runtime).

> Many thanks for the GHC paper. Erlang claims to be able to schedule 10K 
> of lightweight "threads" (not OS threads), and I suppose this is what the 
> V8 runtime on which runs node.js does too. 

No, node and v8 do nothing of the sort.  Node doesn't use threads at
all.  It carries all the state of all its concurrent connections in a
single thread, with a user-level dispatch loop figuring out what to do
with each i/o event as it happens.  It's similar to Python's "Twisted
Matrix" package if you're familiar with that.

> Doing something similar in Forth is what I am interested in.

You might look for the article "The C10k problem" if you're interested
in different approaches to high concurrency.

> Well, there is an explosion of apps using node.js, so the usefulness of 
> this approach is being proven practically. 

There's a ton of code being written in Perl and Java too, so maybe those
languages are also practical, but that doesn't save them from being
disgusting ;-).

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Thread

Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-25 15:50 +0000
  Re: Non-blocking asynchronous execution Mark Wills <markrobertwills@yahoo.co.uk> - 2012-07-25 09:09 -0700
    Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 02:48 +0000
  Re: Non-blocking asynchronous execution rickman <gnuarm@gmail.com> - 2012-07-25 14:41 -0700
    Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 02:54 +0000
      Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-25 20:48 -0700
  Re: Non-blocking asynchronous execution krishna.myneni@ccreweb.org - 2012-07-25 16:57 -0700
    Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-25 17:22 -0700
      Re: Non-blocking asynchronous execution krishna.myneni@ccreweb.org - 2012-07-25 18:22 -0700
        Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 03:03 +0000
          Re: Non-blocking asynchronous execution krishna.myneni@ccreweb.org - 2012-07-26 00:59 -0700
            Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 08:27 +0000
              Re: Non-blocking asynchronous execution krishna.myneni@ccreweb.org - 2012-07-26 11:02 -0700
                Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-27 05:09 +0000
        Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-27 00:03 -0700
          Re: Non-blocking asynchronous execution Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-27 11:55 +0000
  Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-25 17:48 -0700
    Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 02:44 +0000
      Re: Non-blocking asynchronous execution "Elizabeth D. Rather" <erather@forth.com> - 2012-07-25 17:26 -1000
        Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-27 05:23 +0000
          Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-26 23:24 -0700
      Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-25 20:56 -0700
        Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-26 08:21 +0000
          Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-26 13:43 -0700
            Re: Non-blocking asynchronous execution Arnold Doray <invalid@invalid.com> - 2012-07-27 04:40 +0000
              Re: Non-blocking asynchronous execution Paul Rubin <no.email@nospam.invalid> - 2012-07-26 23:10 -0700
  Re: Non-blocking asynchronous execution jim@rainbarrel.com - 2012-07-27 10:41 -0700

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