Callback not triggered when using RepayForward with a step of -1

[dolphinau]

Hi!
Recently, I tried to use the Callback feature of TTD with the bindings of this repo, and I experienced an issue.
It appears that when using a number of steps of -1 in ReplayForward (which is supposed to replay the whole trace), the callbacks aren't triggered.

ttdcursor.SetCallReturnCallback((TTD::PROC_CallCallback)callCallback_tree, 0);
ttdcursor.ReplayForward(&replayrez, last, -1);
// Callback never triggered here

Hence, the only way to scan the whole process and trigger the callbacks at the same time is to ReplayForward with a step of 1 in a loop. This alternative works, but is rather slow.

// Callback triggered here
do {
    ttdcursor.ReplayForward(&replayrez, last, 1);
} while (replayrez.stepCount);

I don't really know if the bug comes from TTD itself or from the bindings. But in the first case, it could be nice to document this behavior in the bindings.

I tried to build an example to understand better the issue, you can find it here, on my fork, in the issue-callback branch.
I hardcoded the value of the trace file and the dlls in the example, you may need to change them to make it work on your machine

I just simplified the example-calltree main file to showcase the bug. I works on windows, and should also work on any other supported platform (but I didn't test).

Thank you for your work on these bindings!
Regards

[kweatherman]

Try it without an index file. Delete the ".idx" file that WinDbgX makes.
Assuming you have loaded the trace in WinDbgX in the first place.
I had a similar problem but only when a companion ".idx" file is present. The Windows playback will load the index file along with the ".run" trace file and there is no option to disable it.