dcrd/lru/go.mod
Dave Collins 15d7a9b7f1
lru: Implement a new module with generic LRU cache.
This implements a new module named lru which provides a concurrency safe
least-recently-used cache with nearly early O(1) lookups, inserts, and
deletions.  The cache is limited to a maximum number of items with
eviction for the oldest entry when the limit is exceeded.

This will allow the various concrete implementations to be updated to
make use of this shared module instead of duplicating code.  There is no
additional performance hit to making use of this generic version because
the internal list already causes the item to be boxed anyway, so the
addition of the interface for the type does not cause an additional
alloc.

This can be seen by comparing this generic implementation to the
existing concrete nonce implementation in peer:

BenchmarkCache   	 1 allocs/op
BenchmarkLruNonceList    1 allocs/op

It also includes comprehensive tests, a benchmark, full package
documentation, and a basic usage example.
2019-03-18 10:08:21 -05:00

4 lines
43 B
Modula-2

module github.com/decred/dcrd/lru
go 1.11