Probably remove the unneeded random draw in APICaffe::ThreadFillerBase

[twongjirad]

Wouldn't consider it super urgent, though.

[twongjirad]

Or entry in process_entry( entry) should mean tree index. There is probably a reason why the different indexing is needed, though, that I fail to see.

[drinkingkazu]

I actually remembered why this feature exists: it is because "RandomAccess" configuration parameter is shared among ThreadDatumFiller and underlying IOManager (actually ProcessDriver, which owns IOManager). I'll change it such that ThreadDatumFiller creates its own IO configuration deterministically and never use RandomAccess (ThreadDatumFiller will decide randomness). This way index ThreadDatumFiller thinks = actual index in TTree.

[drinkingkazu]

Addressed: 29ea5ed

Closing this issue.