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Re: Can Reactive Programming Handle Complexity?

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wjwlsn <ibillwilson@gmail.com>:

> My mental model is of a very complicated spreadsheet with very many
> interconnected formulae, a few input cells, and a large number of
> output cells. A change to any one input cell might result in changes
> to a few output cells (lets say 10 to 20% of them), while the rest
> remain unchanged. Upon changing any input, recalc is automatic and
> immediate, as long as the program (the spreadsheet) is active.

Ok, I get spreadsheets, but I have a hard time seeing how I could use
this reactive programming in any of the problems I've encountered during
my lengthy career. I can do functional programming in Python, I can do
object-oriented programming in C, I can do logic programming in Lisp,
but how would I do reactive programming in any programming language?

Let's say I have a network device driver and I need to maintain two
simple statistics: a packet count and a byte count. I might naively
write something like this (in C):

   void update_traffic_stats(struct stats *stats, size_t pktlen)
   {
       stats->packet_count++;
       stats->byte_count += pktlen;
   }

What would be the "reactive" way of maintaining those statistics?


Marko

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Thread

Can Reactive Programming Handle Complexity? Oregonian Haruspex <bob_davis_retired@yahoo.com> - 2014-02-18 16:33 -0800
  Re: Can Reactive Programming Handle Complexity? dialmove <dialmove@gmail.com> - 2014-02-20 16:17 +0000
    Re: Can Reactive Programming Handle Complexity? dialmove <dialmove@gmail.com> - 2014-02-20 16:36 +0000
      Re: Can Reactive Programming Handle Complexity? Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 20:09 +0200
        Re: Can Reactive Programming Handle Complexity? wjwlsn <ibillwilson@gmail.com> - 2014-02-20 13:05 -0800
          Re: Can Reactive Programming Handle Complexity? Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 23:18 +0200
            Re: Can Reactive Programming Handle Complexity? wjwlsn <ibillwilson@gmail.com> - 2014-02-20 13:40 -0800
            Re: Can Reactive Programming Handle Complexity? dialmove <dialmove@gmail.com> - 2014-02-21 13:56 +0000
          Re: Can Reactive Programming Handle Complexity? dialmove <dialmove@gmail.com> - 2014-02-21 13:34 +0000
            Re: Can Reactive Programming Handle Complexity? Marko Rauhamaa <marko@pacujo.net> - 2014-02-21 16:57 +0200
              Re: Can Reactive Programming Handle Complexity? dialmove <dialmove@gmail.com> - 2014-02-21 15:49 +0000
                Re: Can Reactive Programming Handle Complexity? Marko Rauhamaa <marko@pacujo.net> - 2014-02-21 18:22 +0200

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