* debug option to track Entities
Set FILAMENT_UTILS_TRACK_ENTITIES to true when building libutils to
activate entity tracking. This adds two public methods:
getActiveEntities() and dumpActiveEntities() the later displays the
stack trace of where the remaining entities were allocated.
This is useful for tracking leaks.
* Update libs/utils/include/utils/EntityManager.h
Co-authored-by: Philip Rideout <philiprideout@gmail.com>
Co-authored-by: Philip Rideout <philiprideout@gmail.com>
* Clean-up EntityManager a bit
- use tsl::robin_set instead of std::set (which should have been unordered::set
anyways).
- getListeners() now returns a vector which avoids to traverse a set twice.
Turns out that copying the set wasn't as efficient as I thought.
* Improve jobsystem a bit
We recently added a job reference counting mechanism, but we were a bit
too aggressive about taking/release references.
Also make the API more complete by adding explicit retain/release,
which is needed to allow several threads to wait on the same job.
Also improve futex code by inlining it.
