Merge f828f06 into 2696900

ydb/core/protos/counters_schemeshard.proto

@@ -236,6 +236,11 @@ enum ESimpleCounters {
     COUNTER_IN_FLIGHT_OPS_TxDropTransferCascade = 186  [(CounterOpts) = {Name: "InFlightOps/DropTransferCascade"}];
 
     COUNTER_TRANSFER_COUNT = 187                       [(CounterOpts) = {Name: "Transfers"}];
+
+    COUNTER_PATHS_QUOTA = 188  [(CounterOpts) = {Name: "PathsQuota"}];
+    COUNTER_PATHS = 189        [(CounterOpts) = {Name: "Paths"}];
+    COUNTER_SHARDS_QUOTA = 190 [(CounterOpts) = {Name: "ShardsQuota"}];
+    COUNTER_SHARDS = 191       [(CounterOpts) = {Name: "Shards"}];
 }
 
 enum ECumulativeCounters {

ydb/core/tx/schemeshard/olap/operations/create_store.cpp

@@ -500,8 +500,8 @@ class TCreateOlapStore: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-        dstPath.DomainInfo()->IncPathsInside();
-        dstPath.DomainInfo()->AddInternalShards(txState);
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
         dstPath.Base()->IncShardsInside(shardsToCreate);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 

ydb/core/tx/schemeshard/olap/operations/create_table.cpp

@@ -861,9 +861,9 @@ class TCreateColumnTable: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-        dstPath.DomainInfo()->IncPathsInside();
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
         if (!storeInfo) {
-            dstPath.DomainInfo()->AddInternalShards(txState);
+            dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
             dstPath.Base()->IncShardsInside(tableInfo->GetOwnedColumnShardsVerified().size());
         }
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop

ydb/core/tx/schemeshard/olap/operations/drop_store.cpp

@@ -92,7 +92,7 @@ class TPropose: public TSubOperationState {
         context.SS->PersistDropStep(db, pathId, step, OperationId);
 
         auto domainInfo = context.SS->ResolveDomainInfo(pathId);
-        domainInfo->DecPathsInside();
+        domainInfo->DecPathsInside(context.SS);
         DecAliveChildrenDirect(OperationId, parentDir, context); // for correct discard of ChildrenExist prop
 
         context.SS->TabletCounters->Simple()[COUNTER_USER_ATTRIBUTES_COUNT].Sub(path->UserAttrs->Size());

ydb/core/tx/schemeshard/olap/operations/drop_table.cpp

@@ -131,7 +131,7 @@ class TPropose: public TSubOperationState {
         context.SS->PersistDropStep(db, pathId, step, OperationId);
 
         auto domainInfo = context.SS->ResolveDomainInfo(pathId);
-        domainInfo->DecPathsInside();
+        domainInfo->DecPathsInside(context.SS);
         DecAliveChildrenDirect(OperationId, parentDir, context); // for correct discard of ChildrenExist prop
 
         context.SS->TabletCounters->Simple()[COUNTER_USER_ATTRIBUTES_COUNT].Sub(path->UserAttrs->Size());

ydb/core/tx/schemeshard/schemeshard__delete_tablet_reply.cpp

@@ -135,7 +135,7 @@ struct TSchemeShard::TTxDeleteTabletReply : public TSchemeShard::TRwTxBase {
             path->DecShardsInside();
 
             auto domain = Self->ResolveDomainInfo(path);
-            domain->RemoveInternalShard(ShardIdx);
+            domain->RemoveInternalShard(ShardIdx, Self);
             switch (tabletType) {
             case ETabletType::SequenceShard:
                 domain->RemoveSequenceShard(ShardIdx);

ydb/core/tx/schemeshard/schemeshard__init.cpp

@@ -1511,7 +1511,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
                 }
 
                 TSubDomainInfo::TPtr rootDomainInfo = new TSubDomainInfo(version, Self->RootPathId());
-                rootDomainInfo->SetSchemeLimits(rootLimits);
+                rootDomainInfo->SetSchemeLimits(rootLimits, Self);
                 rootDomainInfo->SetSecurityStateVersion(row.GetValueOrDefault<Schema::SubDomains::SecurityStateVersion>());
 
                 rootDomainInfo->InitializeAsGlobal(Self->CreateRootProcessingParams(ctx));
@@ -1551,7 +1551,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
                     TTabletId sharedHiveId = rowset.GetValue<Schema::SubDomains::SharedHiveId>();
                     domainInfo->SetSharedHive(sharedHiveId);
 
-                    domainInfo->SetSchemeLimits(LoadSchemeLimits(rootLimits, rowset));
+                    domainInfo->SetSchemeLimits(LoadSchemeLimits(rootLimits, rowset), !Self->IsDomainSchemeShard ? Self : nullptr);
 
                     if (rowset.HaveValue<Schema::SubDomains::DeclaredSchemeQuotas>()) {
                         NKikimrSubDomains::TSchemeQuotas declaredSchemeQuotas;
@@ -4010,7 +4010,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
             path->IncShardsInside();
 
             auto domainInfo = Self->ResolveDomainInfo(pathId); //domain should't be dropped?
-            domainInfo->AddInternalShard(shardIdx, Self->IsBackupTable(pathId));
+            domainInfo->AddInternalShard(shardIdx, Self, Self->IsBackupTable(pathId));
 
             switch (si.second.TabletType) {
             case ETabletType::DataShard:
@@ -4118,7 +4118,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
             if (!path->IsRoot()) {
                 const bool isBackupTable = Self->IsBackupTable(item.first);
                 parent->IncAliveChildrenPrivate(isBackupTable);
-                inclusiveDomainInfo->IncPathsInside(1, isBackupTable);
+                inclusiveDomainInfo->IncPathsInside(Self, 1, isBackupTable);
             }
 
             Self->TabletCounters->Simple()[COUNTER_USER_ATTRIBUTES_COUNT].Add(path->UserAttrs->Size());

ydb/core/tx/schemeshard/schemeshard__init_root.cpp

@@ -258,7 +258,7 @@ struct TSchemeShard::TTxInitTenantSchemeShard : public TSchemeShard::TRwTxBase {
             Self->PersistShardMapping(db, shardIdx, id, Self->RootPathId(), InvalidTxId, type);
 
             subdomain->AddPrivateShard(shardIdx);
-            subdomain->AddInternalShard(shardIdx);
+            subdomain->AddInternalShard(shardIdx, Self);
         }
     }
 
@@ -386,7 +386,7 @@ struct TSchemeShard::TTxInitTenantSchemeShard : public TSchemeShard::TRwTxBase {
             subdomain->AddStoragePool(x);
         }
 
-        subdomain->SetSchemeLimits(TSchemeLimits::FromProto(schemeLimits));
+        subdomain->SetSchemeLimits(TSchemeLimits::FromProto(schemeLimits), Self);
 
         if (record.HasDeclaredSchemeQuotas()) {
             subdomain->ApplyDeclaredSchemeQuotas(record.GetDeclaredSchemeQuotas(), ctx.Now());

ydb/core/tx/schemeshard/schemeshard__operation_alter_bsv.cpp

@@ -618,7 +618,7 @@ class TAlterBlockStoreVolume: public TSubOperation {
         context.OnComplete.PublishToSchemeBoard(OperationId, path.Base()->PathId);
 
         TSubDomainInfo::TPtr domainInfo = path.DomainInfo();
-        domainInfo->AddInternalShards(txState);
+        domainInfo->AddInternalShards(txState, context.SS);
 
         path.Base()->IncShardsInside(shardsToCreate);
 

ydb/core/tx/schemeshard/schemeshard__operation_alter_extsubdomain.cpp

@@ -360,7 +360,7 @@ void RegisterChanges(const TTxState& txState, const TTxId operationTxId, TOperat
         context.DbChanges.PersistShard(shardIdx);
 
         // Path
-        path.DomainInfo()->AddInternalShard(shardIdx);
+        path.DomainInfo()->AddInternalShard(shardIdx, context.SS);
         path.Base()->IncShardsInside(1);
 
         // Extsubdomain data
@@ -497,7 +497,7 @@ class TCreateHive: public TSubOperationState {
         {
             auto subdomain = context.SS->SubDomains.at(txState->TargetPathId);
             subdomain->AddPrivateShard(shardIdx);
-            subdomain->AddInternalShard(shardIdx);
+            subdomain->AddInternalShard(shardIdx, context.SS);
 
             subdomain->SetTenantHiveIDPrivate(createdTabletId);
 

ydb/core/tx/schemeshard/schemeshard__operation_alter_pq.cpp

@@ -864,7 +864,7 @@ class TAlterPQ: public TSubOperation {
         context.SS->ClearDescribePathCaches(path.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, path.Base()->PathId);
 
-        path.DomainInfo()->AddInternalShards(txState);
+        path.DomainInfo()->AddInternalShards(txState, context.SS);
         path.DomainInfo()->IncPQPartitionsInside(partitionsToCreate);
         path.DomainInfo()->UpdatePQReservedStorage(oldReserve.Storage, reserve.Storage);
         path.Base()->IncShardsInside(shardsToCreate);

ydb/core/tx/schemeshard/schemeshard__operation_alter_solomon.cpp

@@ -331,7 +331,7 @@ class TAlterSolomon: public TSubOperation {
 
         context.SS->PersistTxState(db, OperationId);
 
-        path.DomainInfo()->AddInternalShards(txState);
+        path.DomainInfo()->AddInternalShards(txState, context.SS);
 
         SetState(NextState());
         return result;

ydb/core/tx/schemeshard/schemeshard__operation_alter_subdomain.cpp

@@ -332,7 +332,7 @@ class TAlterSubDomain: public TSubOperation {
         context.SS->PersistTxState(db, OperationId);
         context.OnComplete.ActivateTx(OperationId);
 
-        path.DomainInfo()->AddInternalShards(txState);
+        path.DomainInfo()->AddInternalShards(txState, context.SS);
         path.Base()->IncShardsInside(shardsToCreate);
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_blob_depot.cpp

@@ -374,8 +374,8 @@ namespace NKikimr::NSchemeShard {
                 context.OnComplete.PublishToSchemeBoard(OperationId, parentPath->PathId);
                 context.SS->ClearDescribePathCaches(dstPath.Base());
                 context.OnComplete.PublishToSchemeBoard(OperationId, dstPath->PathId);
-                dstPath.DomainInfo()->IncPathsInside();
-                dstPath.DomainInfo()->AddInternalShards(txState);
+                dstPath.DomainInfo()->IncPathsInside(context.SS);
+                dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
                 dstPath->IncShardsInside();
                 IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 

ydb/core/tx/schemeshard/schemeshard__operation_common.cpp

@@ -883,7 +883,7 @@ void UpdatePartitioningForCopyTable(TOperationId operationId, TTxState &txState,
             dstTableInfo->PerShardPartitionConfig.erase(shard.Idx);
             context.SS->PersistShardDeleted(db, shard.Idx, context.SS->ShardInfos[shard.Idx].BindedChannels);
             context.SS->ShardInfos.erase(shard.Idx);
-            domainInfo->RemoveInternalShard(shard.Idx);
+            domainInfo->RemoveInternalShard(shard.Idx, context.SS);
             context.SS->DecrementPathDbRefCount(pathId, "remove shard from txState");
             context.SS->OnShardRemoved(shard.Idx);
         }
@@ -934,7 +934,7 @@ void UpdatePartitioningForCopyTable(TOperationId operationId, TTxState &txState,
     ui32 newShardCout = dstTableInfo->GetPartitions().size();
 
     dstPath->SetShardsInside(newShardCout);
-    domainInfo->AddInternalShards(txState);
+    domainInfo->AddInternalShards(txState, context.SS);
 
     context.SS->PersistTable(db, txState.TargetPathId);
     context.SS->PersistTxState(db, operationId);

ydb/core/tx/schemeshard/schemeshard__operation_copy_sequence.cpp

@@ -731,7 +731,7 @@ class TCopySequence: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath->PathId);
 
-        domainInfo->IncPathsInside();
+        domainInfo->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_copy_table.cpp

@@ -712,8 +712,8 @@ class TCopyTable: public TSubOperation {
         const ui32 shardsToCreate = tableInfo->GetPartitions().size();
         Y_VERIFY_S(shardsToCreate <= maxShardsToCreate, "shardsToCreate: " << shardsToCreate << " maxShardsToCreate: " << maxShardsToCreate);
 
-        dstPath.DomainInfo()->IncPathsInside(1, isBackup);
-        dstPath.DomainInfo()->AddInternalShards(txState, isBackup);
+        dstPath.DomainInfo()->IncPathsInside(context.SS, 1, isBackup);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS, isBackup);
         dstPath.Base()->IncShardsInside(shardsToCreate);
         IncAliveChildrenSafeWithUndo(OperationId, parent, context, isBackup);
 

ydb/core/tx/schemeshard/schemeshard__operation_create_backup_collection.cpp

@@ -173,7 +173,7 @@ class TCreateBackupCollection : public TSubOperation {
         auto pathEl = CreateBackupCollectionPathElement(dstPath);
 
         IncAliveChildrenDirect(OperationId, rootPath, context); // for correct discard of ChildrenExist prop
-        rootPath.DomainInfo()->IncPathsInside();
+        rootPath.DomainInfo()->IncPathsInside(context.SS);
 
         auto backupCollection = TBackupCollectionInfo::Create(desc);
         context.SS->BackupCollections[dstPath->PathId] = backupCollection;

ydb/core/tx/schemeshard/schemeshard__operation_create_bsv.cpp

@@ -362,8 +362,8 @@ class TCreateBlockStoreVolume: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-        dstPath.DomainInfo()->IncPathsInside();
-        dstPath.DomainInfo()->AddInternalShards(txState);
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
         dstPath.Base()->IncShardsInside(shardsToCreate);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 

ydb/core/tx/schemeshard/schemeshard__operation_create_cdc_stream.cpp

@@ -324,7 +324,7 @@ class TNewCdcStream: public TSubOperation {
         context.SS->CdcStreams[pathId] = stream;
         context.SS->IncrementPathDbRefCount(pathId);
 
-        streamPath.DomainInfo()->IncPathsInside();
+        streamPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenSafeWithUndo(OperationId, tablePath, context); // for correct discard of ChildrenExist prop
 
         context.OnComplete.ActivateTx(OperationId);

ydb/core/tx/schemeshard/schemeshard__operation_create_external_data_source.cpp

@@ -278,7 +278,7 @@ class TCreateExternalDataSource : public TSubOperation {
                                                           context.SS,
                                                           context.OnComplete);
 
-        dstPath.DomainInfo()->IncPathsInside();
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_create_external_table.cpp

@@ -370,7 +370,7 @@ class TCreateExternalTable: public TSubOperation {
                                                           context.SS,
                                                           context.OnComplete);
 
-        dstPath.DomainInfo()->IncPathsInside();
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_create_extsubdomain.cpp

@@ -261,7 +261,7 @@ class TCreateExtSubDomain: public TSubOperation {
         context.OnComplete.PublishToSchemeBoard(OperationId, newNode->PathId);
 
         Y_ABORT_UNLESS(0 == txState.Shards.size());
-        parentPath.DomainInfo()->IncPathsInside();
+        parentPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_create_fs.cpp

@@ -428,8 +428,8 @@ THolder<TProposeResponse> TCreateFileStore::Propose(
     context.SS->ClearDescribePathCaches(dstPath.Base());
     context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-    dstPath.DomainInfo()->IncPathsInside();
-    dstPath.DomainInfo()->AddInternalShards(txState);
+    dstPath.DomainInfo()->IncPathsInside(context.SS);
+    dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
     dstPath.Base()->IncShardsInside(shardsToCreate);
     IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 

ydb/core/tx/schemeshard/schemeshard__operation_create_index.cpp

@@ -245,7 +245,7 @@ class TCreateTableIndex: public TSubOperation {
 
         context.OnComplete.ActivateTx(OperationId);
 
-        dstPath.DomainInfo()->IncPathsInside();
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenSafeWithUndo(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_create_kesus.cpp

@@ -402,8 +402,8 @@ class TCreateKesus: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-        dstPath.DomainInfo()->IncPathsInside();
-        dstPath.DomainInfo()->AddInternalShards(txState);
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
 
         dstPath.Base()->IncShardsInside();
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop

ydb/core/tx/schemeshard/schemeshard__operation_create_pq.cpp

@@ -545,8 +545,8 @@ class TCreatePQ: public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath.Base()->PathId);
 
-        dstPath.DomainInfo()->IncPathsInside();
-        dstPath.DomainInfo()->AddInternalShards(txState);
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
         dstPath.DomainInfo()->IncPQPartitionsInside(partitionsToCreate);
         dstPath.DomainInfo()->IncPQReservedStorage(reserve.Storage);
 

ydb/core/tx/schemeshard/schemeshard__operation_create_replication.cpp

@@ -398,7 +398,7 @@ class TCreateReplication: public TSubOperation {
 
         context.SS->IncrementPathDbRefCount(path->PathId);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
-        parentPath.DomainInfo()->IncPathsInside();
+        parentPath.DomainInfo()->IncPathsInside(context.SS);
 
         if (desc.GetConfig().GetSrcConnectionParams().GetCredentialsCase() == NKikimrReplication::TConnectionParams::CREDENTIALS_NOT_SET) {
             desc.MutableConfig()->MutableSrcConnectionParams()->MutableOAuthToken()->SetToken(BUILTIN_ACL_ROOT);
@@ -425,7 +425,7 @@ class TCreateReplication: public TSubOperation {
         txState.State = TTxState::CreateParts;
 
         path->IncShardsInside();
-        parentPath.DomainInfo()->AddInternalShards(txState);
+        parentPath.DomainInfo()->AddInternalShards(txState, context.SS);
 
         if (parentPath->HasActiveChanges()) {
             const auto parentTxId = parentPath->PlannedToCreate() ? parentPath->CreateTxId : parentPath->LastTxId;

ydb/core/tx/schemeshard/schemeshard__operation_create_resource_pool.cpp

@@ -182,7 +182,7 @@ class TCreateResourcePool : public TSubOperation {
 
         IncParentDirAlterVersionWithRepublishSafeWithUndo(OperationId, dstPath, context.SS, context.OnComplete);
 
-        dstPath.DomainInfo()->IncPathsInside();
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());

ydb/core/tx/schemeshard/schemeshard__operation_create_rtmr.cpp

@@ -368,8 +368,8 @@ class TCreateRTMR: public TSubOperation {
         Y_ABORT_UNLESS(shardsToCreate == txState.Shards.size(), "shardsToCreate=%ld != txStateShards=%ld",
             shardsToCreate, txState.Shards.size());
 
-        dstPath.DomainInfo()->IncPathsInside();
-        dstPath.DomainInfo()->AddInternalShards(txState);
+        dstPath.DomainInfo()->IncPathsInside(context.SS);
+        dstPath.DomainInfo()->AddInternalShards(txState, context.SS);
 
         dstPath.Base()->IncShardsInside(shardsToCreate);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop

ydb/core/tx/schemeshard/schemeshard__operation_create_sequence.cpp

@@ -524,7 +524,7 @@ class TCreateSequence : public TSubOperation {
             txState.Shards.emplace_back(sequenceShard, ETabletType::SequenceShard, TTxState::CreateParts);
             txState.State = TTxState::CreateParts;
             context.SS->PathsById.at(domainPathId)->IncShardsInside();
-            domainInfo->AddInternalShard(sequenceShard);
+            domainInfo->AddInternalShard(sequenceShard, context.SS);
             domainInfo->AddSequenceShard(sequenceShard);
         } else {
             txState.Shards.emplace_back(sequenceShard, ETabletType::SequenceShard, TTxState::ConfigureParts);
@@ -576,7 +576,7 @@ class TCreateSequence : public TSubOperation {
         context.SS->ClearDescribePathCaches(dstPath.Base());
         context.OnComplete.PublishToSchemeBoard(OperationId, dstPath->PathId);
 
-        domainInfo->IncPathsInside();
+        domainInfo->IncPathsInside(context.SS);
         IncAliveChildrenDirect(OperationId, parentPath, context); // for correct discard of ChildrenExist prop
 
         SetState(NextState());