Re: [tracecompass-dev] Adding additional events to TmfTrace

[Alexandre Montplaisir <alexmonthy@xxxxxxxxxxxx>]

Hi David,

On 2016-06-28 02:30 PM, David Wootton wrote:

> The user then wants to load an
> additional trace generated by a separate tool

This sounds like experiments (TmfExperiment) could be a good fit. The 
concept of an experiment is opening several traces together, and looking 
at the result as if it was one single trace. In that case you would just 
have to add a parser and trace type for the second additional trace.

That way you wouldn't need to re-create supplementary files specific to 
the single traces. Note you could still have experiment-wide analyses 
that create experiment-wide supplementary files too.


If that doesn't work, and you need to go with the approach of modifying 
a single trace, then I would suggest creating a new trace entirely, and 
having the framework open that. Trying to modify an already-open trace 
will probably cause many problems, one of them being that events cannot 
be added elsewhere than at the end of the trace. And even for that, 
"live" trace-updating support is very limited and probably still quite 
buggy.


Cheers,
Alexandre