[openbeos] Re: Some network land questions:
- From: "Oliver Ruiz Dorantes" <urnenfel@xxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Fri, 3 Aug 2007 14:15:33 +0200
Hi
That was usefull!
Thanks, I think with the remaining answers I should be done,
> Could I safe&freely from a driver... (totally disconnected from the
> > TCP/IP
> > stack) use this field to keep an own queue of net_buffers?
>
> Exactly, that's its purpose :-)
Can I take as well for granted for the fields protocol & flags?
Sure, the net_buffer module has no dependencies in the rest of the
> stack. However, it currently uses the slab allocator directly, so you
> would either have to revert to an older version of it (that just used
> malloc(), but was therefore slower), or compile the slab stuff into the
> module.
Where can I find the list.h and slab.h "implementation" ?
As for the use of the net_buffers:
Once the buffer is created and afterwards you append or prepend some data:
A) How are u supposed to proceed if you want to drop all its content
"contiguously" somewhere (driver.. port)?
B) How are u supposed to proceed if u want to "map" a portion of the data to
a given structure... how an incoming buffer's information is analized?
Ex: Usually map a part of the first bytes(header), take any consideration
according to the packet header, and maybe purge it from the buffer to read
the following part(following header)...
Thanks again!
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