[ltt-dev] Traces data alignment

[Jérôme Stadelmann]

On jeudi 19 mars 2009 18:00:01 Mathieu Desnoyers wrote:
> * Jérôme Stadelmann (jerome.stadelmann at heig-vd.ch) wrote:
> > Hi everybody,
> > 
> > I'm working on a LTTng traces parser and I'm a little bit blocked on the alignment. Can someone please explain how and where it is coded ?
> 
> The lttv lib "ltttraceread" should do that for you.
 
> > What are the roles of the alignment defined in the traces header and the one defined in the metadata file in the core_marker_id ?
> > 
> 
> They tell that a specific tracefile content is aligned or not, and if
> the content of a given event is aligned or not. You should really have
> at least a look at the ltt lib traceread reference implementation.

Thank you. This library helped me a lot. I see that there is an up to 2 byte alignment in the core marker id event definition. Is there the only special case ?
I've searched the uses of the ltt_align function. Are there other functions to look for ?

Jerome
 
> Mathieu
> 
> > Regards,
> > Jerome
> > 
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