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Re: Embedded Linux: share data among different processes

From Paul Rubin <no.email@nospam.invalid>
Newsgroups comp.arch.embedded
Subject Re: Embedded Linux: share data among different processes
Date 2016-06-23 13:05 -0700
Organization A noiseless patient Spider
Message-ID <87mvmbr7q3.fsf@nightsong.com> (permalink)
References <nkgihf$dn7$1@dont-email.me> <nkhegt$lup$1@dont-email.me>

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Les Cargill <lcargill99@comcast.com> writes:
> This is a nontrivial project.
> All this being said, there may be a good software kit to solve this
> problem out there; I just don't know what it is.

I did something like this (TCP over USB between the base unit and the
display) and it wasn't so bad.  Yes there was a ton of bloaty system
code under the surface (language interpreter, network stack etc.) but
who cares?  The application itself was reasonably simple.  The ARM CPU
and 64MB of ram were a few dollars, and the "disk" was a 2GB microSD
card that was another couple bucks.  The user application was written
like any other client-server app.  The shared data was managed in the
application itself, that ran in a single process (multiple threads), but
using a database works perfectly well if you don't mind the overhead.
If you have the memory for it, Redis could be a good alternative to
SQLite, depending on what the application needs.

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Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-23 13:52 +0200
  Re: Embedded Linux: share data among different processes Jack <jack4747@gmail.com> - 2016-06-23 05:30 -0700
    Re: Embedded Linux: share data among different processes Reinhardt Behm <rbehm@hushmail.com> - 2016-06-23 21:05 +0800
      Re: Embedded Linux: share data among different processes Clifford Heath <no.spam@please.net> - 2016-06-24 09:45 +1000
        Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-23 17:19 -0700
          Re: Embedded Linux: share data among different processes Clifford Heath <no.spam@please.net> - 2016-06-24 13:25 +1000
            Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-23 21:27 -0700
              Re: Embedded Linux: share data among different processes Clifford Heath <no.spam@please.net> - 2016-06-24 14:40 +1000
                Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-23 22:20 -0700
                Re: Embedded Linux: share data among different processes Clifford Heath <no.spam@please.net> - 2016-06-24 17:19 +1000
                Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 01:01 -0700
                Re: Embedded Linux: share data among different processes Dimiter_Popoff <dp@tgi-sci.com> - 2016-06-24 16:38 +0300
                Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 11:13 -0700
        Re: Embedded Linux: share data among different processes Reinhardt Behm <rbehm@hushmail.com> - 2016-06-24 12:39 +0800
          Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 01:53 -0700
            Re: Embedded Linux: share data among different processes Reinhardt Behm <rbehm@hushmail.com> - 2016-06-26 09:34 +0800
              Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-26 00:30 -0700
        Re: Embedded Linux: share data among different processes Les Cargill <lcargill99@comcast.com> - 2016-06-24 15:18 -0500
  Re: Embedded Linux: share data among different processes Mel Wilson <mwilson@the-wire.com> - 2016-06-23 13:47 +0000
    Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-24 13:36 +0200
      Re: Embedded Linux: share data among different processes Mel Wilson <mwilson@the-wire.com> - 2016-06-26 15:25 +0000
  Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-23 12:11 -0700
    Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-24 13:40 +0200
      Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 10:44 -0700
  Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-23 12:31 -0700
    Re: Embedded Linux: share data among different processes George Neuner <gneuner2@comcast.net> - 2016-06-23 17:27 -0400
    Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-24 13:43 +0200
      Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 10:48 -0700
        Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-27 14:46 +0200
          Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-27 13:41 -0700
      Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-24 13:52 -0700
        Re: Embedded Linux: share data among different processes Les Cargill <lcargill99@comcast.com> - 2016-06-24 16:42 -0500
        Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-27 16:00 +0200
          Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-27 20:06 -0700
            Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-28 08:41 +0200
              Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-28 00:27 -0700
                Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-28 12:50 +0200
                Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-28 10:01 -0700
                Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-29 13:10 +0200
                Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-29 10:47 -0700
                Re: Embedded Linux: share data among different processes edward.ming.lee@gmail.com - 2016-06-29 14:01 -0700
                Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-30 15:11 +0200
                Re: Embedded Linux: share data among different processes edward.ming.lee@gmail.com - 2016-06-30 08:19 -0700
  Re: Embedded Linux: share data among different processes Les Cargill <lcargill99@comcast.com> - 2016-06-23 14:53 -0500
    Re: Embedded Linux: share data among different processes Paul Rubin <no.email@nospam.invalid> - 2016-06-23 13:05 -0700
    Re: Embedded Linux: share data among different processes pozz <pozzugno@gmail.com> - 2016-06-24 13:54 +0200
      Re: Embedded Linux: share data among different processes Les Cargill <lcargill99@comcast.com> - 2016-06-24 14:27 -0500
  Re: Embedded Linux: share data among different processes Les Cargill <lcargill99@comcast.com> - 2016-06-24 16:39 -0500
    Re: Embedded Linux: share data among different processes Don Y <blockedofcourse@foo.invalid> - 2016-06-24 15:11 -0700

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