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LRU cache for room versions in RS query API (#976)

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* Experimental LRU cache for room versions

* Don't accidentally try to type-assert nil

* Also reduce hits on query API

* Use hashicorp implementation which mutexes for us

* Define const for max cache entries

* Rename to be specifically immutable, panic if we try to mutate a cache entry

* Review comments

* Remove nil guards, give roomserver integration test a cache

* go mod tidy
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Neil Alexander 2020-04-22 13:00:05 +01:00 • committed by GitHub
parent 71f9d35b7c
commit a466e9e9cc
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7 changed files with 112 additions and 22 deletions
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12
common/caching/immutablecache.go Normal file
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@ -0,0 +1,12 @@
package caching
import "github.com/matrix-org/gomatrixserverlib"
const (
RoomVersionMaxCacheEntries = 128
)
type ImmutableCache interface {
GetRoomVersion(roomId string) (gomatrixserverlib.RoomVersion, bool)
StoreRoomVersion(roomId string, roomVersion gomatrixserverlib.RoomVersion)
}