Add Inner Ring code

pkg/innerring/processors/netmap/process_epoch.go

@@ -0,0 +1,29 @@
+package netmap
+
+import (
+	"github.com/nspcc-dev/neofs-node/pkg/innerring/invoke"
+	"go.uber.org/zap"
+)
+
+// Process new epoch notification by setting global epoch value and resetting
+// local epoch timer.
+func (np *Processor) processNewEpoch(epoch uint64) {
+	np.epochState.SetEpochCounter(epoch)
+	np.epochTimer.ResetEpochTimer()
+}
+
+// Process new epoch tick by invoking new epoch method in network map contract.
+func (np *Processor) processNewEpochTick() {
+	if !np.activeState.IsActive() {
+		np.log.Info("passive mode, ignore new epoch tick")
+		return
+	}
+
+	nextEpoch := np.epochState.EpochCounter() + 1
+	np.log.Debug("next epoch", zap.Uint64("value", nextEpoch))
+
+	err := invoke.SetNewEpoch(np.morphClient, np.netmapContract, nextEpoch)
+	if err != nil {
+		np.log.Error("can't invoke netmap.NewEpoch", zap.Error(err))
+	}
+}