This is for the implementation of Portal Network in the Shisui client.
Their handler needs access to the node object in order to send further
calls to the requesting node. This is a breaking API change but it
should be fine, since there are basically no known users of TALKREQ
outside of Portal network.
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Signed-off-by: thinkAfCod <q315xia@163.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
It seems there is no fully typed library implementation of an LRU cache.
So I wrote one. Method names are the same as github.com/hashicorp/golang-lru,
and the new type can be used as a drop-in replacement.
Two reasons to do this:
- It's much easier to understand what a cache is for when the types are right there.
- Performance: the new implementation is slightly faster and performs zero memory
allocations in Add when the cache is at capacity. Overall, memory usage of the cache
is much reduced because keys are values are no longer wrapped in interface.
