These caches have the option of being built with no locking, allowing fine grained control of locking scemantics for the caller, and an auto locking option, for when fine grained control is not required.
When to control your own locking scemantics:
No additional overhead if not needed.
If one or more operations are desired to be done at once, which allows caller/locker/user to choose the locking strategy that best suits them. eg. can lock and do two gets and a set before unlocking.
When to use auto locking:
When only one operation will ever be done at once eg. Get, Set, Remove, ...
License
Licensed under either of Apache License, Version
2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this package by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.