* Added a StealHandlers function to AZ Event
The StealHandlers function is able to take all the handlers from an AZ
Event parameter and register them with the current AZ Event
This allows stealing handlers from expiring AZ Events, which is useful
for a lock and swap algorithm for thread safety.
1. Lock persistent AZ::Event
2. Swap persistent AZ::Event with local AZ::Event
3. Unlock persistent AZ::Event - Other threads can now add to this
AZ::Event
4. Invoke handlers from local AZ::Event
5. Relock persistent AZ::Event
5. Swap local AZ::Event with persistent AZ::Event
6. Local AZ::Event now contains handlers that were added when the lock
was free
7. Persistent AZ::Event now steals from local AZ::Event
8. Unlock persistent AZ::Event
Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>
* Separated SettingRegistry update/query mutex from Notifier update mutex
The Settings Registry update/query mutex is also better scoped to reduce
the amount of lock time.
The Notifier mutex being separate allows the Settings Registry to signal
a notification event without being under any mutex, by locking and
swapping the notifier event with a local instance
Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>
* Renamed StealHandlers function to ClaimHandlers
Replaced decltype keywords in ClaimHandlers to auto
Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>
lumberyard-employee-dm
9060423592