new epoch start blockchain hooks

cmd/node/config/gasSchedules/gasScheduleV1.toml

@@ -113,6 +113,11 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 1000
+    EpochStartBlockTimeStamp = 1000
+    EpochStartBlockNonce = 1000
+    EpochStartBlockRound = 1000
+
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +242,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV2.toml

@@ -113,6 +113,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +241,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV3.toml

@@ -113,6 +113,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +241,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV4.toml

@@ -113,6 +113,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +241,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV5.toml

@@ -113,6 +113,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +241,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV6.toml

@@ -113,6 +113,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -237,6 +241,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned = 10000
+    MBufferToSmallIntSigned = 10000
+    MBufferFromSmallIntUnsigned = 10000
+    MBufferFromSmallIntSigned = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV7.toml

@@ -114,6 +114,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -238,6 +242,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

cmd/node/config/gasSchedules/gasScheduleV8.toml

@@ -114,6 +114,10 @@
     GetCodeMetadata      = 10000
     IsBuiltinFunction    = 10000
     IsReservedFunctionName = 10000
+    GetRoundTime    = 10000
+    EpochStartBlockTimeStamp = 10000
+    EpochStartBlockNonce = 10000
+    EpochStartBlockRound = 10000
 
 [EthAPICost]
     UseGas              = 100
@@ -238,6 +242,10 @@
     MBufferSetRandom             = 6000
     MBufferToBigFloat            = 2000
     MBufferFromBigFloat          = 2000
+    MBufferToSmallIntUnsigned    = 10000
+    MBufferToSmallIntSigned      = 10000
+    MBufferFromSmallIntUnsigned  = 10000
+    MBufferFromSmallIntSigned    = 10000
 
 [BigFloatAPICost]
     BigFloatNewFromParts = 3000

epochStart/bootstrap/disabled/disabledEpochStartTrigger.go

@@ -2,6 +2,7 @@ package disabled
 
 import (
 	"github.com/multiversx/mx-chain-core-go/data"
+	"github.com/multiversx/mx-chain-core-go/data/block"
 )
 
 type epochStartTrigger struct {
@@ -54,6 +55,16 @@ func (e *epochStartTrigger) EpochStartMetaHdrHash() []byte {
 	return nil
 }
 
+// LastCommitedEpochStartHdr -
+func (e *epochStartTrigger) LastCommitedEpochStartHdr() (data.HeaderHandler, error) {
+	return &block.HeaderV2{}, nil
+}
+
+// GetEpochStartHdrFromStorage -
+func (e *epochStartTrigger) GetEpochStartHdrFromStorage(_ uint32) (data.HeaderHandler, error) {
+	return &block.HeaderV2{}, nil
+}
+
 // GetSavedStateKey -
 func (e *epochStartTrigger) GetSavedStateKey() []byte {
 	return nil

epochStart/interface.go

@@ -22,6 +22,8 @@ type TriggerHandler interface {
 	Update(round uint64, nonce uint64)
 	EpochStartRound() uint64
 	EpochStartMetaHdrHash() []byte
+	LastCommitedEpochStartHdr() (data.HeaderHandler, error)
+	GetEpochStartHdrFromStorage(epoch uint32) (data.HeaderHandler, error)
 	GetSavedStateKey() []byte
 	LoadState(key []byte) error
 	SetProcessed(header data.HeaderHandler, body data.BodyHandler)

epochStart/metachain/systemSCs_test.go

@@ -841,6 +841,8 @@ func createFullArgumentsForSystemSCProcessing(enableEpochsConfig config.EnableEp
 		GasSchedule:              gasScheduleNotifier,
 		Counter:                  &testscommon.BlockChainHookCounterStub{},
 		MissingTrieNodesNotifier: &testscommon.MissingTrieNodesNotifierStub{},
+		EpochStartTrigger:        &testscommon.EpochStartTriggerStub{},
+		RoundHandler:             &testscommon.RoundHandlerMock{},
 	}
 
 	defaults.FillGasMapInternal(gasSchedule, 1)

epochStart/metachain/trigger.go

@@ -21,7 +21,7 @@ import (
 	"github.com/multiversx/mx-chain-go/epochStart"
 	"github.com/multiversx/mx-chain-go/process"
 	"github.com/multiversx/mx-chain-go/storage"
-	"github.com/multiversx/mx-chain-logger-go"
+	logger "github.com/multiversx/mx-chain-logger-go"
 )
 
 var log = logger.GetOrCreate("epochStart/metachain")
@@ -403,6 +403,40 @@ func (t *trigger) EpochStartMetaHdrHash() []byte {
 	return t.epochStartMetaHash
 }
 
+// LastCommitedEpochStartHdr returns the header of the epoch start block
+func (t *trigger) LastCommitedEpochStartHdr() (data.HeaderHandler, error) {
+	t.mutTrigger.RLock()
+	defer t.mutTrigger.RUnlock()
+
+	// marshal + unmarshal deep copy
+	headerBytes, err := t.marshaller.Marshal(t.epochStartMeta)
+	if err != nil {
+		return nil, err
+	}
+
+	return process.UnmarshalMetaHeader(t.marshaller, headerBytes)
+}
+
+// GetEpochStartHdrFromStorage returns the header of the epoch start block from storage
+func (t *trigger) GetEpochStartHdrFromStorage(epoch uint32) (data.HeaderHandler, error) {
+	t.mutTrigger.RLock()
+	defer t.mutTrigger.RUnlock()
+
+	epochStartIdentifier := core.EpochStartIdentifier(epoch)
+	epochStartMetaBuff, err := t.metaHeaderStorage.SearchFirst([]byte(epochStartIdentifier))
+	if err != nil {
+		return nil, err
+	}
+
+	metaHdr := &block.MetaBlock{}
+	err = t.marshaller.Unmarshal(metaHdr, epochStartMetaBuff)
+	if err != nil {
+		return nil, err
+	}
+
+	return metaHdr, nil
+}
+
 // GetSavedStateKey returns the last saved trigger state key
 func (t *trigger) GetSavedStateKey() []byte {
 	return t.triggerStateKey

epochStart/shardchain/trigger.go

@@ -24,7 +24,7 @@ import (
 	"github.com/multiversx/mx-chain-go/epochStart"
 	"github.com/multiversx/mx-chain-go/process"
 	"github.com/multiversx/mx-chain-go/storage"
-	"github.com/multiversx/mx-chain-logger-go"
+	logger "github.com/multiversx/mx-chain-logger-go"
 )
 
 var log = logger.GetOrCreate("epochStart/shardchain")
@@ -1102,6 +1102,31 @@ func (t *trigger) EpochStartMetaHdrHash() []byte {
 	return t.epochMetaBlockHash
 }
 
+// LastCommitedEpochStartHdr returns the epoch start header
+func (t *trigger) LastCommitedEpochStartHdr() (data.HeaderHandler, error) {
+	t.mutTrigger.RLock()
+	defer t.mutTrigger.RUnlock()
+
+	// marshal + unmarshal deep copy
+	headerBytes, err := t.marshaller.Marshal(t.epochStartShardHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	return process.UnmarshalShardHeader(t.marshaller, headerBytes)
+}
+
+// GetEpochStartHdrFromStorage returns the epoch start header from storage
+func (t *trigger) GetEpochStartHdrFromStorage(epoch uint32) (data.HeaderHandler, error) {
+	epochStartIdentifier := core.EpochStartIdentifier(epoch)
+	shardHdrBuff, err := t.shardHdrStorage.SearchFirst([]byte(epochStartIdentifier))
+	if err != nil {
+		return nil, err
+	}
+
+	return process.UnmarshalShardHeader(t.marshaller, shardHdrBuff)
+}
+
 // GetSavedStateKey returns the last saved trigger state key
 func (t *trigger) GetSavedStateKey() []byte {
 	return t.triggerStateKey

factory/api/apiResolverFactory.go

@@ -413,6 +413,8 @@ func createScQueryElement(
 		MissingTrieNodesNotifier: syncer.NewMissingTrieNodesNotifier(),
 		Accounts:                 accountsAdapterApi,
 		BlockChain:               apiBlockchain,
+		EpochStartTrigger:        args.processComponents.EpochStartTrigger(),
+		RoundHandler:             args.processComponents.RoundHandler(),
 	}
 
 	var vmFactory process.VirtualMachinesContainerFactory

factory/consensus/consensusComponents_test.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/multiversx/mx-chain-core-go/core"
 	"github.com/multiversx/mx-chain-core-go/data"
-	"github.com/multiversx/mx-chain-crypto-go"
+	crypto "github.com/multiversx/mx-chain-crypto-go"
 	"github.com/multiversx/mx-chain-go/common"
 	"github.com/multiversx/mx-chain-go/consensus"
 	retriever "github.com/multiversx/mx-chain-go/dataRetriever"
@@ -141,6 +141,7 @@ func createMockConsensusComponentsFactoryArgs() consensusComp.ConsensusComponent
 			HeaderIntegrVerif:                    &mock.HeaderIntegrityVerifierStub{},
 			FallbackHdrValidator:                 &testscommon.FallBackHeaderValidatorStub{},
 			SentSignaturesTrackerInternal:        &testscommon.SentSignatureTrackerStub{},
+			BlockchainHookField:                  &testscommon.BlockChainHookStub{},
 		},
 		StateComponents: &factoryMocks.StateComponentsMock{
 			StorageManagers: map[string]common.StorageManager{

factory/interface.go

@@ -311,6 +311,7 @@ type ProcessComponentsHolder interface {
 	ReceiptsRepository() ReceiptsRepository
 	SentSignaturesTracker() process.SentSignaturesTracker
 	EpochSystemSCProcessor() process.EpochStartSystemSCProcessor
+	BlockchainHook() process.BlockChainHookWithAccountsAdapter
 	IsInterfaceNil() bool
 }