smallest message header

Hallo,

what is the minimum message header of a message passing message?

Does it contain only the type and subtype field ??


Regards

–Armin

I don’t think the kernel cares, you could probably send a 0 length
message, but if you are using the resource manager code, you probably
just need the type.

Hi Armin,

If you are talking about IO messages used by the resource manager, I think
it uses a short for the message id.
Kevin

“Armin” <a@b.com> wrote in message news:f8afhs$3f6$1@inn.qnx.com

Hallo,

what is the minimum message header of a message passing message?

Does it contain only the type and subtype field ??


Regards

–Armin

Hi Kevin,

Kevin Stallard wrote:

Hi Armin,

If you are talking about IO messages

I’m talking about low level message passing messages.
You are right … the first 16 bit of a message passing message seems to
be used in general in order to sort out system level and application
level messages.

–Armin



used by the resource manager, I think
it uses a short for the message id.
Kevin

“Armin” <> a@b.com> > wrote in message news:f8afhs$3f6$> 1@inn.qnx.com> …
Hallo,

what is the minimum message header of a message passing message?

Does it contain only the type and subtype field ??


Regards

–Armin