[tracecompass-dev] Event requests precedence

[Geneviève Bastien <gbastien+lttng@xxxxxxxxxxxx>]

Hello,

I would like some information on how the event request coalescing works 
as of now and how I could make the following use case work:

* I have an analysis for an experiment (let's call it the virtual 
machine analysis) that runs an event request on the experiment.
* That analysis also depends on individual analysis from the traces of 
the experiment (concretely the LttngKernelAnalysisModule from each 
kernel trace).
* When the experiment analysis module is executed, it also makes sure 
the LttngKernelAnalysisModule from each child trace is executed.
* But when I handle an event in the experiment, I want to be sure that 
the LttngKernelAnalysisModules have run with this event before handling 
it in the experiment.

If I just let things run by themselves right now, the order of the 
requests is random so the event may or may not have been handled by the 
traces before it is by the experiment.

How would be the best way to solve this?

Thanks,
Geneviève