Re: [Socketcan-users] What are you doing if the TX buffer overflows?

[Steffen Rose <ro@emtas.de>]

Hello,

> > This would mean, if my program (one of the 3) clear the TX queue as part
> > of an internal communication reset it would also destroy the messages of
> > the other programs.
> > 
> > Is this idea right?
> 
> Yes, you're right.
> That's an aspect of 'multi-user' environment,
> with a flexible 'user' interpretation.

In this case I have a new case:

An other program (master) send a communication reset request to my program.
I would clear all of my outstanding messages, because it contains old data and 
I don't want to sent it. The most problems are, I think, if the messages are a 
long time in the buffer, e.g. because the 'root' user, (not my program) has 
created a large buffer.

I want to clear this messages with user rights. I think, this last requirement 
(user rights) should be ok, because I want to clear only my messages.

I'm unsure, if the buffered messages have an assignment to the program, that 
sent this message.

Additional: Of course I response the reset request an I hope, that this 
response is send after all old buffered messages. It's depend of the queue 
configuration, I think.

-- 
Mit freundlichen Grüßen / Regards
Steffen Rose
www.emtas.de