BOUNCE rtl@rtlinux.org: Approval required: (fwd)

[Der Herr Hofrat <der.herr@hofr.at>]

>From owner-rtl Tue Jul 24 13:24:45 2001
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Date: Tue, 24 Jul 2001 15:24:13 -0400
From: Tyson D Sawyer <tyson@rwii.com>
To: rtl@fsmlabs.com
Cc: tyson@rwii.com
Subject: Re: [rtl] No priority inheritance
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I'm still looking for some pointers on this one.

Thanks!
Ty

On 2001/07/18 10:50 Tyson D Sawyer wrote:
> A question from the ignorant:
> 
> I understand the problems that can remain with priority inheritance with
> mutexes but I'm at a bit of a loss as to how to do things "correctly". 
> Even a
> condition variable requires use of a mutex that might create "priority
> inversion"
> problems.
> 
> I know how to use mutexes with priority inheritance and so long as I
> don't let things get ugly, I know how the system will work.  Without
> priority inheritance I don't know where to begin other than to not use
> any sort of mutex (and therefore condition variable) at all.  A system
> with no syncronization seems a bit ugly, but is that the only other
> option?
> 
> Pointers to the right things to read would be appriciated.  The FAQ says
> to ask and doesn't include any help.
> 
> Thanks!
> Ty
 
-- 
Tyson D Sawyer                             iRobot Corporation
Senior Systems Engineer                    Real World Interface Div.
tsawyer@irobot.com                         Robots for the Real World
603-532-6900 ext 206                       http://www.irobot.com

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