[#5] innerring: Use generic LRU cache

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

pkg/innerring/processors/neofs/process_assets.go

@@ -42,10 +42,10 @@ func (np *Processor) processDeposit(deposit *frostfsEvent.Deposit) {
 	defer np.mintEmitLock.Unlock()
 
 	val, ok := np.mintEmitCache.Get(receiver.String())
-	if ok && val.(uint64)+np.mintEmitThreshold >= curEpoch {
+	if ok && val+np.mintEmitThreshold >= curEpoch {
 		np.log.Warn("double mint emission declined",
 			zap.String("receiver", receiver.String()),
-			zap.Uint64("last_emission", val.(uint64)),
+			zap.Uint64("last_emission", val),
 			zap.Uint64("current_epoch", curEpoch))
 
 		return

pkg/innerring/processors/neofs/processor.go

@@ -12,7 +12,7 @@ import (
 	"github.com/TrueCloudLab/frostfs-node/pkg/morph/event"
 	frostfsEvent "github.com/TrueCloudLab/frostfs-node/pkg/morph/event/neofs"
 	"github.com/TrueCloudLab/frostfs-node/pkg/util/logger"
-	lru "github.com/hashicorp/golang-lru"
+	lru "github.com/hashicorp/golang-lru/v2"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/panjf2000/ants/v2"
@@ -47,7 +47,7 @@ type (
 		alphabetState       AlphabetState
 		converter           PrecisionConverter
 		mintEmitLock        *sync.Mutex
-		mintEmitCache       *lru.Cache
+		mintEmitCache       *lru.Cache[string, uint64]
 		mintEmitThreshold   uint64
 		mintEmitValue       fixedn.Fixed8
 		gasBalanceThreshold int64
@@ -105,7 +105,7 @@ func New(p *Params) (*Processor, error) {
 		return nil, fmt.Errorf("ir/frostfs: can't create worker pool: %w", err)
 	}
 
-	lruCache, err := lru.New(p.MintEmitCacheSize)
+	lruCache, err := lru.New[string, uint64](p.MintEmitCacheSize)
 	if err != nil {
 		return nil, fmt.Errorf("ir/frostfs: can't create LRU cache for gas emission: %w", err)
 	}