Is RTAI open source ??
-----Original Message-----
From: Guilherme Nelson DeSouza [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 29, 1999 12:32 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [rtl] POSIX design document
Can anybody come up with a simple and comprehensive table
displaying exactly the differences/similarities between RTLinux
(MNT) and RTAI?
I don't know about the rest of you, but for me it's been
quite confusing to picture what exactly each implementation
does. This is due mainly to the lack of a consistent terminology
among some of the members of this list when referring to this
or that implementation - people tend to use "RTLinux" to refer
to both implementations. Or even worse, the misinformation
on some web pages with respect to the documentation included
in the distribution (.tgz), the email messages in this list,
etc. For example:
1) Commercial Distributions
>Date: Wed, 29 Sep 1999 17:06:07 +0100
>From: Brendan Knox <[EMAIL PROTECTED]>
> As it happens, Zentropix have a Redhat 6.0 based CD that
>comes with RTAI ...
>From http://www.zentropix.com/
>The Zentropix RealTime Linux Installation CD-ROM (version 1.0)
>utilizes standard versions of the NMT Real-Time Linux with ...
2) IPC
>Date: Wed, 29 Sep 1999 19:50:48 +0900
>From: Sung-Gwan Heo <[EMAIL PROTECTED]>
>Current POSIX API of RT-Linux seems to miss interprocess
>communication(e.g message passing) and process synchronization
>(e.g semaphore) mechanism.
>Date: Wed, 29 Sep 1999 18:02:17 +0000
>From: Paolo Mantegazza <[EMAIL PROTECTED]>
>...
>Robert Findlay wrote: ...
>> That group is trying to bring Send/Receive/Reply (QNX style)
>> messaging to both Linux (user space) and RTLinux (module/kernel
>> space) processes.
>You might also check RTAI 0.6 where timing, intertask messages
>(QNX like and not QNX like), mailboxes semaphores, shared memory
>and all the rest can be used Linux<->Linux, Linux<->RTAI and
>RTAI<->RTAI in a unique comprehensive development environment.
>Date: Wed, 29 Sep 1999 10:51:40 -0600
>From: [EMAIL PROTECTED]
>RTLinux has, for a long time, included Jerry Epplin's semaphore
>package as part of the distribution.
3) Floating point
>From RTAI's web site
http://server.aero.polimi.it/projects/rtl_variant/articolo/RTLart.html
>Another important reason for using this variant was the fact it
>solved the problem of a bug free FPU support that, for some time,
>has been lacking in the official release. Right now the official
>RTLinux has solved most of these problems
****
>Date: Wed, 29 Sep 1999 10:37:21 -0600
>From: [EMAIL PROTECTED]
>Floating point support is in RTL Ver 1.1 and before.
>it is also in the pre V2 versions. Are you haveing a problem
>with it?
And so on...
The internet, the www, and mailing lists are wonderful and
indispensable technological assets available at every person's
finger tips. However, the speed at which things evolve today
contrasts with the speed at which people is capable of updating
and maintaining the information displayed by those resources.
This problem plus some subliminal political dispute that we
seem to be undergoing in this list can only be damaging to
this community.
Best,
Guilherme
-------------< G. N. DeSouza >-------------
---------< [EMAIL PROTECTED]>---------
--< http://rvl1.ecn.purdue.edu/~gnelson >--
--- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
----
For more information on Real-Time Linux see:
http://www.rtlinux.org/~rtlinux/
--- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
----
For more information on Real-Time Linux see:
http://www.rtlinux.org/~rtlinux/
