[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-ha-dev
Subject:    Re: GLIB as a core linux-ha component:  [Was Re: [Linux-ha-dev] Patch and  issues]
From:       "sam" <sam028 () ifrance ! com>
Date:       2001-06-05 19:27:56
[Download RAW message or body]

Hi all.

For my "home made" HA system, which is running on Solaris and Linux (in
production), and was tested on TRU-64 and AIX, I massively use GLIB
functions. The code is exactly the same, for all OS. It might not be
possible without GLIB. I just have a different Makefile, for the each OS.
Few times, something goes wrong with glib functions (especially hashtable
and glist): works on linux, funny things on Solaris; each time, it was my
fault... I use GTK for the GUI of my system, and it's quite portable too. Or
maybe not portable at all: it's the same code, so there is nothing to port
...
I really recommend the use of GLIB for heartbeat code.

Sam.

----- Original Message -----
From: "Alan Robertson" <alanr@unix.sh>
To: <linux-ha-dev@lists.community.tummy.com>
Sent: Monday, June 04, 2001 5:15 PM
Subject: GLIB as a core linux-ha component: [Was Re: [Linux-ha-dev] Patch
and issues]


> Eric Lee Green wrote:
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On Mon, 4 Jun 2001, David Lee wrote:
> > > =================== snip ==================
> > > 2. "module.c" (in heartbeat) now fails to compile:
> > >       [...]/heartbeat/module.c:487: glib.h: No such file or directory
> > >    I see that "module.c" has been radically revised, and that this
> > >    "include <glib.h>" is new at version 1.14.
> > >
> > >    My guess is that "glib.h" is a Linux-specific quirk, so
non-portable.
> >
> > Not Linux-specific, but definitely non-standard. According to 'rpm' on
my
> > Linux system:
> >
> > "glib ( http://www.gtk.org ) is a library of functions used by GDK,
GTK+,
> > and many applications, designed to solve some portability problems and
> > provide other useful functionality which most programs require."
> >
> > glib runs on most Unix platforms. On the other hand, last time I looked
at
> > the glib source code (necessary because it was almost totally
> > undocumented), I almost barfed.  It was totally non-thread-safe, used
> > extremely inefficient algorithms, etc. That was some time ago so it may
> > have been improved since, but it's a disturbing dependency to have.
>
> OK.
>
> Here's the story with Glib.  It is part of the Gnome system which ships
with
> most Linux systems. Solaris and most other UNIX OSes will be installing as
> standard parts of most of them.  It is also available on Windows.  It
would
> be a pretty surprising if this standard GUI component were not thread
safe.
>
> Docs are here:
> http://developer.gnome.org/doc/API/glib/index.htmlh
>
> The most relevant portions are here:
> http://developer.gnome.org/doc/API/glib/glib-data-types.html
>
>
> It has some nice implementations of common data structures in 'C' - like
> linked lists and associative arrays.  This is what I was planning on
using -
> heavily - for some new work coming up.  I've heard some very positive
> reviews from people using them.
>
> It would be unfortunate to have to reimplement them if we could just use
> them.
>
> So, PLEASE let me know ASAP if this is an issue.
>
> Eric: would you please pull down a current version and see if your
> objections still hold.  Please concentrate primarily on the basic
container
> code (lists, hash tables, etc).
>
> If objections are strong - we'll do something about them.  If the code is
> enough good we'll use it.
>
> One way or another, we need some lists, associative arrays, etc for the
> future...
>
> Whatever we use here, it will NOT be an optional component in the future.
>
> So, BY ALL MEANS speak your objections now, and let the flames begin ;-)
>
> -- Alan Robertson
>    alanr@unix.sh
> _______________________________________________________
> Linux-HA-Dev: Linux-HA-Dev@lists.community.tummy.com
> http://lists.community.tummy.com/mailman/listinfo/linux-ha-dev
> Home Page: http://linux-ha.org/

 
______________________________________________________________________________
ifrance.com, l'email gratuit le plus complet de l'Internet !
vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP...
http://www.ifrance.com/_reloc/email.emailif


_______________________________________________________
Linux-HA-Dev: Linux-HA-Dev@lists.community.tummy.com
http://lists.community.tummy.com/mailman/listinfo/linux-ha-dev
Home Page: http://linux-ha.org/

[prev in list] [next in list] [prev in thread] [next in thread]