Key-based hybrid/distributed locking

[MarkCiliaVincenti]

Rather than locking using a SemaphoreSlim for all caches, we can lock more intelligently, per cache key, using pooled semaphores. Uses a 3rd party library but does not introduce a new dependency to the whole project.

[MarkCiliaVincenti]

@maliming

[maliming]

hi @MarkCiliaVincenti

We don't want to add a new package dependency. SemaphoreSlim is enough for us.

Thanks for your contribution, 👍

[MarkCiliaVincenti]

hi @MarkCiliaVincenti

We don't want to add a new package dependency. SemaphoreSlim is enough for us.

Thanks for your contribution, 👍

@maliming this dependency is already part of ABP.