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mesh.go
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mesh.go
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// Package mesh defines the main store point for all the block-mesh objects
// such as blocks, transactions and global state
package mesh
import (
"encoding/binary"
"errors"
"fmt"
"github.com/seehuhn/mt19937"
"github.com/spacemeshos/go-spacemesh/common/types"
"github.com/spacemeshos/go-spacemesh/common/util"
"github.com/spacemeshos/go-spacemesh/database"
"github.com/spacemeshos/go-spacemesh/events"
"github.com/spacemeshos/go-spacemesh/log"
"math/rand"
"math/big"
"sync"
)
const (
layerSize = 200
)
var constTrue = []byte{1}
var constFalse = []byte{0}
var constLATEST = []byte("latest")
var constLAYERHASH = []byte("layer hash")
var constPROCESSED = []byte("processed")
// TORTOISE key for tortoise persistence in database
var TORTOISE = []byte("tortoise")
// VERIFIED refers to layers we pushed into the state
var VERIFIED = []byte("verified")
type tortoise interface {
HandleIncomingLayer(layer *types.Layer) (types.LayerID, types.LayerID)
LatestComplete() types.LayerID
Persist() error
HandleLateBlock(bl *types.Block) (types.LayerID, types.LayerID)
}
// Validator interface to be used in tests to mock validation flow
type Validator interface {
ValidateLayer(layer *types.Layer)
HandleLateBlock(bl *types.Block)
ProcessedLayer() types.LayerID
SetProcessedLayer(lyr types.LayerID)
}
type txProcessor interface {
ApplyTransactions(layer types.LayerID, txs []*types.Transaction) (int, error)
ApplyRewards(layer types.LayerID, miners []types.Address, reward *big.Int)
AddressExists(addr types.Address) bool
ValidateNonceAndBalance(transaction *types.Transaction) error
GetLayerApplied(txID types.TransactionID) *types.LayerID
GetLayerStateRoot(layer types.LayerID) (types.Hash32, error)
GetStateRoot() types.Hash32
LoadState(layer types.LayerID) error
ValidateAndAddTxToPool(tx *types.Transaction) error
GetBalance(addr types.Address) uint64
GetNonce(addr types.Address) uint64
}
type txMemPoolInValidator interface {
Invalidate(id types.TransactionID)
}
type atxMemPoolInValidator interface {
Invalidate(id types.ATXID)
}
// AtxDB holds logic for working with atxs
type AtxDB interface {
ProcessAtxs(atxs []*types.ActivationTx) error
GetAtxHeader(id types.ATXID) (*types.ActivationTxHeader, error)
GetFullAtx(id types.ATXID) (*types.ActivationTx, error)
SyntacticallyValidateAtx(atx *types.ActivationTx) error
}
// Mesh is the logic layer above our mesh.DB database
type Mesh struct {
log.Log
*DB
AtxDB
txProcessor
Validator
trtl tortoise
txInvalidator txMemPoolInValidator
config Config
latestLayer types.LayerID
latestLayerInState types.LayerID
layerHash []byte
lMutex sync.RWMutex
lkMutex sync.RWMutex
lcMutex sync.RWMutex
lvMutex sync.RWMutex
orphMutex sync.RWMutex
pMutex sync.RWMutex
done chan struct{}
nextValidLayers map[types.LayerID]*types.Layer
maxValidatedLayer types.LayerID
txMutex sync.Mutex
}
// NewMesh creates a new instant of a mesh
func NewMesh(db *DB, atxDb AtxDB, rewardConfig Config, mesh tortoise, txInvalidator txMemPoolInValidator, pr txProcessor, logger log.Log) *Mesh {
ll := &Mesh{
Log: logger,
trtl: mesh,
txInvalidator: txInvalidator,
txProcessor: pr,
done: make(chan struct{}),
DB: db,
config: rewardConfig,
AtxDB: atxDb,
nextValidLayers: make(map[types.LayerID]*types.Layer),
latestLayer: types.GetEffectiveGenesis(),
latestLayerInState: types.GetEffectiveGenesis(),
}
ll.Validator = &validator{ll, 0}
return ll
}
// NewRecoveredMesh creates new instance of mesh with recovered mesh data fom database
func NewRecoveredMesh(db *DB, atxDb AtxDB, rewardConfig Config, mesh tortoise, txInvalidator txMemPoolInValidator, pr txProcessor, logger log.Log) *Mesh {
msh := NewMesh(db, atxDb, rewardConfig, mesh, txInvalidator, pr, logger)
latest, err := db.general.Get(constLATEST)
if err != nil {
logger.Panic("could not recover latest layer: %v", err)
}
msh.latestLayer = types.LayerID(util.BytesToUint64(latest))
processed, err := db.general.Get(constPROCESSED)
if err != nil {
logger.Panic("could not recover processed layer: %v", err)
}
msh.SetProcessedLayer(types.LayerID(util.BytesToUint64(processed)))
if msh.layerHash, err = db.general.Get(constLAYERHASH); err != nil {
logger.With().Error("could not recover latest layer hash", log.Err(err))
}
verified, err := db.general.Get(VERIFIED)
if err != nil {
logger.Panic("could not recover latest verified layer: %v", err)
}
msh.latestLayerInState = types.LayerID(util.BytesToUint64(verified))
err = pr.LoadState(msh.LatestLayerInState())
if err != nil {
logger.Panic("cannot load state for layer %v, message: %v", msh.LatestLayerInState(), err)
}
// in case we load a state that was not fully played
if msh.LatestLayerInState()+1 < msh.trtl.LatestComplete() {
// todo: add test for this case, or add random kill test on node
logger.Info("playing layers %v to %v to state", msh.LatestLayerInState()+1, msh.trtl.LatestComplete())
msh.pushLayersToState(msh.LatestLayerInState()+1, msh.trtl.LatestComplete())
}
msh.With().Info("recovered mesh from disc",
log.FieldNamed("latest_layer", msh.latestLayer),
log.FieldNamed("validated_layer", msh.ProcessedLayer()),
log.String("layer_hash", util.Bytes2Hex(msh.layerHash)),
log.String("root_hash", pr.GetStateRoot().String()))
return msh
}
// CacheWarmUp warms up cache with latest blocks
func (msh *Mesh) CacheWarmUp(layerSize int) {
start := types.LayerID(0)
if msh.ProcessedLayer() > types.LayerID(msh.blockCache.Cap()/layerSize) {
start = msh.ProcessedLayer() - types.LayerID(msh.blockCache.Cap()/layerSize)
}
if err := msh.cacheWarmUpFromTo(start, msh.ProcessedLayer()); err != nil {
msh.Error("cache warm up failed during recovery", err)
}
msh.Info("cache warm up done")
}
// LatestLayerInState returns the latest layer we applied to state
func (msh *Mesh) LatestLayerInState() types.LayerID {
defer msh.pMutex.RUnlock()
msh.pMutex.RLock()
return msh.latestLayerInState
}
// LatestLayer - returns the latest layer we saw from the network
func (msh *Mesh) LatestLayer() types.LayerID {
defer msh.lkMutex.RUnlock()
msh.lkMutex.RLock()
return msh.latestLayer
}
// SetLatestLayer sets the latest layer we saw from the network
func (msh *Mesh) SetLatestLayer(idx types.LayerID) {
// Report the status update, as well as the layer itself.
layer, err := msh.GetLayer(idx)
if err != nil {
msh.Error("error reading layer data for layer %v: %s", layer, err)
} else {
events.ReportNewLayer(events.NewLayer{
Layer: layer,
Status: events.LayerStatusTypeUnknown,
})
}
defer msh.lkMutex.Unlock()
msh.lkMutex.Lock()
if idx > msh.latestLayer {
events.ReportNodeStatusUpdate()
msh.Info("set latest known layer to %v", idx)
msh.latestLayer = idx
if err := msh.general.Put(constLATEST, idx.Bytes()); err != nil {
msh.Error("could not persist Latest layer index")
}
}
}
// GetLayer returns Layer i from the database
func (msh *Mesh) GetLayer(i types.LayerID) (*types.Layer, error) {
mBlocks, err := msh.LayerBlocks(i)
if err != nil {
return nil, err
}
l := types.NewLayer(i)
l.SetBlocks(mBlocks)
return l, nil
}
type validator struct {
*Mesh
processedLayer types.LayerID
}
func (vl *validator) ProcessedLayer() types.LayerID {
defer vl.lvMutex.RUnlock()
vl.lvMutex.RLock()
return vl.processedLayer
}
func (vl *validator) SetProcessedLayer(lyr types.LayerID) {
vl.Info("set processed layer to %d", lyr)
events.ReportNodeStatusUpdate()
defer vl.lvMutex.Unlock()
vl.lvMutex.Lock()
vl.processedLayer = lyr
}
func (vl *validator) HandleLateBlock(b *types.Block) {
vl.Info("Validate late block %s", b.ID())
oldPbase, newPbase := vl.trtl.HandleLateBlock(b)
if err := vl.trtl.Persist(); err != nil {
vl.Error("could not persist Tortoise on late block %s from layer index %d", b.ID(), b.Layer())
}
vl.pushLayersToState(oldPbase, newPbase)
}
func (vl *validator) ValidateLayer(lyr *types.Layer) {
vl.Info("Validate layer %d", lyr.Index())
if len(lyr.Blocks()) == 0 {
vl.Info("skip validation of layer %d with no blocks", lyr.Index())
vl.SetProcessedLayer(lyr.Index())
events.ReportNewLayer(events.NewLayer{
Layer: lyr,
Status: events.LayerStatusTypeConfirmed,
})
return
}
oldPbase, newPbase := vl.trtl.HandleIncomingLayer(lyr)
vl.SetProcessedLayer(lyr.Index())
if err := vl.trtl.Persist(); err != nil {
vl.Error("could not persist tortoise layer index %d", lyr.Index())
}
if err := vl.general.Put(constPROCESSED, lyr.Index().Bytes()); err != nil {
vl.Error("could not persist validated layer index %d", lyr.Index())
}
vl.pushLayersToState(oldPbase, newPbase)
events.ReportNewLayer(events.NewLayer{
Layer: lyr,
Status: events.LayerStatusTypeConfirmed,
})
vl.Info("done validating layer %v", lyr.Index())
}
func (msh *Mesh) pushLayersToState(oldPbase types.LayerID, newPbase types.LayerID) {
for layerID := oldPbase; layerID < newPbase; layerID++ {
l, err := msh.GetLayer(layerID)
// TODO: propagate/handle error
if err != nil || l == nil {
msh.With().Error("failed to get layer", layerID, log.Err(err))
return
}
validBlocks, invalidBlocks := msh.BlocksByValidity(l.Blocks())
msh.updateStateWithLayer(layerID, types.NewExistingLayer(layerID, validBlocks))
msh.logStateRoot(l.Index())
msh.setLayerHash(l)
msh.reInsertTxsToPool(validBlocks, invalidBlocks, l.Index())
}
msh.persistLayerHash()
}
func (msh *Mesh) reInsertTxsToPool(validBlocks, invalidBlocks []*types.Block, l types.LayerID) {
seenTxIds := make(map[types.TransactionID]struct{})
uniqueTxIds(validBlocks, seenTxIds)
returnedTxs := msh.getTxs(uniqueTxIds(invalidBlocks, seenTxIds), l)
grouped, accounts := msh.removeFromUnappliedTxs(returnedTxs)
for account := range accounts {
msh.removeRejectedFromAccountTxs(account, grouped, l)
}
for _, tx := range returnedTxs {
err := msh.ValidateAndAddTxToPool(tx)
// We ignore errors here, since they mean that the tx is no longer valid and we shouldn't re-add it
if err == nil {
msh.With().Info("transaction from contextually invalid block re-added to mempool", tx.ID())
}
}
}
func (msh *Mesh) applyState(l *types.Layer) {
msh.accumulateRewards(l, msh.config)
msh.pushTransactions(l)
msh.setLatestLayerInState(l.Index())
events.ReportNewLayer(events.NewLayer{
Layer: l,
Status: events.LayerStatusTypeApproved,
})
}
// HandleValidatedLayer handles layer valid blocks as decided by hare
func (msh *Mesh) HandleValidatedLayer(validatedLayer types.LayerID, layer []types.BlockID) {
var blocks []*types.Block
for _, blockID := range layer {
block, err := msh.GetBlock(blockID)
if err != nil {
// stop processing this hare result, wait until tortoise pushes this layer into state
log.Error("hare terminated with block that is not present in mesh")
return
}
blocks = append(blocks, block)
}
lyr := types.NewExistingLayer(validatedLayer, blocks)
invalidBlocks := msh.getInvalidBlocksByHare(lyr)
// Reporting of the validated layer happens deep inside this call stack, below
// updateStateWithLayer, inside applyState. No need to report here.
msh.updateStateWithLayer(validatedLayer, lyr)
msh.reInsertTxsToPool(blocks, invalidBlocks, lyr.Index())
}
func (msh *Mesh) getInvalidBlocksByHare(hareLayer *types.Layer) (invalid []*types.Block) {
dbLayer, err := msh.GetLayer(hareLayer.Index())
if err != nil {
log.Panic("wtf")
return
}
exists := make(map[types.BlockID]struct{})
for _, block := range hareLayer.Blocks() {
exists[block.ID()] = struct{}{}
}
for _, block := range dbLayer.Blocks() {
if _, has := exists[block.ID()]; !has {
invalid = append(invalid, block)
}
}
return
}
func (msh *Mesh) updateStateWithLayer(validatedLayer types.LayerID, layer *types.Layer) {
msh.txMutex.Lock()
defer msh.txMutex.Unlock()
latest := msh.LatestLayerInState()
if validatedLayer <= latest {
log.Info("result received after state has been advanced for layer %v, latest: %v", validatedLayer, latest)
return
}
if msh.maxValidatedLayer < validatedLayer {
msh.maxValidatedLayer = validatedLayer
}
if validatedLayer > latest+1 {
log.Info("early layer result was received for layer %v, max validated so far %v latest %v", validatedLayer, msh.maxValidatedLayer, latest)
msh.nextValidLayers[validatedLayer] = layer
return
}
msh.applyState(layer)
for i := validatedLayer + 1; i <= msh.maxValidatedLayer; i++ {
nxtLayer, has := msh.nextValidLayers[i]
if !has {
break
}
msh.applyState(nxtLayer)
delete(msh.nextValidLayers, i)
}
}
func (msh *Mesh) setLatestLayerInState(lyr types.LayerID) {
// update validated layer only after applying transactions since loading of state depends on processedLayer param.
msh.pMutex.Lock()
if err := msh.general.Put(VERIFIED, lyr.Bytes()); err != nil {
msh.Panic("could not persist validated layer index %d", lyr)
}
msh.latestLayerInState = lyr
msh.pMutex.Unlock()
}
func (msh *Mesh) logStateRoot(layerID types.LayerID) {
msh.Event().Info("end of layer state root", layerID,
log.String("state_root", util.Bytes2Hex(msh.txProcessor.GetStateRoot().Bytes())),
)
}
func (msh *Mesh) setLayerHash(layer *types.Layer) {
validBlocks, _ := msh.BlocksByValidity(layer.Blocks())
msh.layerHash = types.CalcBlocksHash32(types.BlockIDs(validBlocks), msh.layerHash).Bytes()
msh.Event().Info("new layer hash", layer.Index(),
log.String("layer_hash", util.Bytes2Hex(msh.layerHash)))
}
func (msh *Mesh) persistLayerHash() {
if err := msh.general.Put(constLAYERHASH, msh.layerHash); err != nil {
msh.With().Error("failed to persist layer hash", log.Err(err), msh.ProcessedLayer(),
log.String("layer_hash", util.Bytes2Hex(msh.layerHash)))
}
}
func (msh *Mesh) extractUniqueOrderedTransactions(l *types.Layer) (validBlockTxs []*types.Transaction) {
validBlocks := l.Blocks()
// Deterministically sort valid blocks
types.SortBlocks(validBlocks)
// Initialize a Mersenne Twister seeded with layerHash
blockHash := types.CalcBlockHash32Presorted(types.BlockIDs(validBlocks), nil)
mt := mt19937.New()
mt.SeedFromSlice(toUint64Slice(blockHash.Bytes()))
rng := rand.New(mt)
// Perform a Fisher-Yates shuffle on the blocks
rng.Shuffle(len(validBlocks), func(i, j int) {
validBlocks[i], validBlocks[j] = validBlocks[j], validBlocks[i]
})
// Get and return unique transactions
seenTxIds := make(map[types.TransactionID]struct{})
return msh.getTxs(uniqueTxIds(validBlocks, seenTxIds), l.Index())
}
func toUint64Slice(b []byte) []uint64 {
l := len(b)
var s []uint64
for i := 0; i < l; i += 8 {
s = append(s, binary.LittleEndian.Uint64(b[i:util.Min(l, i+8)]))
}
return s
}
func uniqueTxIds(blocks []*types.Block, seenTxIds map[types.TransactionID]struct{}) []types.TransactionID {
var txIds []types.TransactionID
for _, b := range blocks {
for _, id := range b.TxIDs {
if _, found := seenTxIds[id]; found {
continue
}
txIds = append(txIds, id)
seenTxIds[id] = struct{}{}
}
}
return txIds
}
func (msh *Mesh) getTxs(txIds []types.TransactionID, l types.LayerID) []*types.Transaction {
txs, missing := msh.GetTransactions(txIds)
if len(missing) != 0 {
msh.Panic("could not find transactions %v from layer %v", missing, l)
}
return txs
}
func (msh *Mesh) pushTransactions(l *types.Layer) {
validBlockTxs := msh.extractUniqueOrderedTransactions(l)
numFailedTxs, err := msh.ApplyTransactions(l.Index(), validBlockTxs)
if err != nil {
msh.With().Error("failed to apply transactions",
l.Index(), log.Int("num_failed_txs", numFailedTxs), log.Err(err))
// TODO: We want to panic here once we have a way to "remember" that we didn't apply these txs
// e.g. persist the last layer transactions were applied from and use that instead of `oldBase`
}
msh.removeFromUnappliedTxs(validBlockTxs)
msh.With().Info("applied transactions",
log.Int("valid_block_txs", len(validBlockTxs)),
l.Index(),
log.Int("num_failed_txs", numFailedTxs),
)
}
// GetProcessedLayer returns a layer only if it has already been processed
func (msh *Mesh) GetProcessedLayer(i types.LayerID) (*types.Layer, error) {
msh.lMutex.RLock()
if i > msh.ProcessedLayer() {
msh.lMutex.RUnlock()
msh.Debug("failed to get layer ", i, " layer not verified yet")
return nil, errors.New("layer not verified yet")
}
msh.lMutex.RUnlock()
return msh.GetLayer(i)
}
// AddBlock adds a block to the database ignoring the block txs/atxs
// ***USED ONLY FOR TESTS***
func (msh *Mesh) AddBlock(blk *types.Block) error {
msh.Debug("add block %d", blk.ID())
if err := msh.DB.AddBlock(blk); err != nil {
msh.Warning("failed to add block %v %v", blk.ID(), err)
return err
}
msh.SetLatestLayer(blk.Layer())
// new block add to orphans
msh.handleOrphanBlocks(blk)
// invalidate txs and atxs from pool
msh.invalidateFromPools(&blk.MiniBlock)
return nil
}
// SetZeroBlockLayer tags lyr as a layer without blocks
func (msh *Mesh) SetZeroBlockLayer(lyr types.LayerID) error {
msh.Info("setting zero block layer %v", lyr)
// check database for layer
_, err := msh.GetLayer(lyr)
if err == nil {
// layer exists
msh.Info("layer has blocks, dont set layer to 0 ")
return fmt.Errorf("layer exists")
}
if err != database.ErrNotFound {
// database error
return fmt.Errorf("could not fetch layer from database %s", err)
}
msh.SetLatestLayer(lyr)
lm := msh.getLayerMutex(lyr)
defer msh.endLayerWorker(lyr)
lm.m.Lock()
defer lm.m.Unlock()
// layer doesnt exist, need to insert new layer
return msh.AddZeroBlockLayer(lyr)
}
// AddBlockWithTxs adds a block to the database
// blk - the block to add
// txs - block txs that we dont have in our tx database yet
// atxs - block atxs that we dont have in our atx database yet
func (msh *Mesh) AddBlockWithTxs(blk *types.Block, txs []*types.Transaction, atxs []*types.ActivationTx) error {
msh.With().Debug("adding block", blk.Fields()...)
// Store transactions (doesn't have to be rolled back if other writes fail)
if len(txs) > 0 {
if err := msh.writeTransactions(blk.LayerIndex, txs); err != nil {
return fmt.Errorf("could not write transactions of block %v database: %v", blk.ID(), err)
}
if err := msh.addToUnappliedTxs(txs, blk.LayerIndex); err != nil {
return fmt.Errorf("failed to add to unappliedTxs: %v", err)
}
}
// Store block (delete if storing ATXs fails)
err := msh.DB.AddBlock(blk)
if err != nil && err == ErrAlreadyExist {
return nil
}
if err != nil {
msh.With().Error("failed to add block", blk.ID(), log.Err(err))
return err
}
// Store ATXs (atomically, delete the block on failure)
if err := msh.AtxDB.ProcessAtxs(atxs); err != nil {
// Roll back adding the block (delete it)
if err := msh.blocks.Delete(blk.ID().Bytes()); err != nil {
msh.With().Warning("failed to roll back adding a block", log.Err(err), blk.ID())
}
return fmt.Errorf("failed to process ATXs: %v", err)
}
msh.SetLatestLayer(blk.Layer())
// new block add to orphans
msh.handleOrphanBlocks(blk)
// invalidate txs and atxs from pool
msh.invalidateFromPools(&blk.MiniBlock)
events.ReportNewBlock(blk)
msh.With().Info("added block to database", blk.Fields()...)
return nil
}
func (msh *Mesh) invalidateFromPools(blk *types.MiniBlock) {
for _, id := range blk.TxIDs {
msh.txInvalidator.Invalidate(id)
}
}
// todo better thread safety
func (msh *Mesh) handleOrphanBlocks(blk *types.Block) {
msh.orphMutex.Lock()
defer msh.orphMutex.Unlock()
if _, ok := msh.orphanBlocks[blk.Layer()]; !ok {
msh.orphanBlocks[blk.Layer()] = make(map[types.BlockID]struct{})
}
msh.orphanBlocks[blk.Layer()][blk.ID()] = struct{}{}
msh.Debug("Added block %s to orphans", blk.ID())
for _, b := range blk.ViewEdges {
for layerID, layermap := range msh.orphanBlocks {
if _, has := layermap[b]; has {
msh.Log.With().Debug("delete block from orphans", b)
delete(layermap, b)
if len(layermap) == 0 {
delete(msh.orphanBlocks, layerID)
}
break
}
}
}
}
// GetOrphanBlocksBefore returns all known orphan blocks with layerID < l
func (msh *Mesh) GetOrphanBlocksBefore(l types.LayerID) ([]types.BlockID, error) {
msh.orphMutex.RLock()
defer msh.orphMutex.RUnlock()
ids := map[types.BlockID]struct{}{}
for key, val := range msh.orphanBlocks {
if key < l {
for bid := range val {
ids[bid] = struct{}{}
}
}
}
blocks, err := msh.LayerBlockIds(l - 1)
if err != nil {
return nil, fmt.Errorf("failed getting latest layer %v err %v", l-1, err)
}
// add last layer blocks
for _, b := range blocks {
ids[b] = struct{}{}
}
idArr := make([]types.BlockID, 0, len(ids))
for i := range ids {
idArr = append(idArr, i)
}
idArr = types.SortBlockIDs(idArr)
msh.Info("orphans for layer %d are %v", l, idArr)
return idArr, nil
}
func (msh *Mesh) accumulateRewards(l *types.Layer, params Config) {
ids := make([]types.Address, 0, len(l.Blocks()))
for _, bl := range l.Blocks() {
if bl.ATXID == *types.EmptyATXID {
msh.With().Info("skipping reward distribution for block with no ATX", bl.LayerIndex, bl.ID())
continue
}
atx, err := msh.AtxDB.GetAtxHeader(bl.ATXID)
if err != nil {
msh.With().Warning("Atx from block not found in db", log.Err(err), bl.ID(), bl.ATXID)
continue
}
ids = append(ids, atx.Coinbase)
}
if len(ids) == 0 {
msh.With().Info("no valid blocks for layer ", l.Index())
return
}
// aggregate all blocks' rewards
txs := msh.extractUniqueOrderedTransactions(l)
totalReward := &big.Int{}
for _, tx := range txs {
totalReward.Add(totalReward, new(big.Int).SetUint64(tx.Fee))
}
layerReward := calculateLayerReward(l.Index(), params)
totalReward.Add(totalReward, layerReward)
numBlocks := big.NewInt(int64(len(ids)))
blockTotalReward, blockTotalRewardMod := calculateActualRewards(l.Index(), totalReward, numBlocks)
msh.ApplyRewards(l.Index(), ids, blockTotalReward)
blockLayerReward, blockLayerRewardMod := calculateActualRewards(l.Index(), layerReward, numBlocks)
log.With().Info("Reward calculated",
l.Index(),
log.Uint64("num_blocks", numBlocks.Uint64()),
log.Uint64("total_reward", totalReward.Uint64()),
log.Uint64("layer_reward", layerReward.Uint64()),
log.Uint64("block_total_reward", blockTotalReward.Uint64()),
log.Uint64("block_layer_reward", blockLayerReward.Uint64()),
log.Uint64("total_reward_remainder", blockTotalRewardMod.Uint64()),
log.Uint64("layer_reward_remainder", blockLayerRewardMod.Uint64()),
)
err := msh.writeTransactionRewards(l.Index(), ids, blockTotalReward, blockLayerReward)
if err != nil {
msh.Error("cannot write reward to db")
}
// todo: should miner id be sorted in a deterministic order prior to applying rewards?
}
// GenesisBlock is a is the first static block that xists at the beginning of each network. it exist one layer before actual blocks could be created
func GenesisBlock() *types.Block {
return types.NewExistingBlock(types.GetEffectiveGenesis(), []byte("genesis"))
}
// GenesisLayer generates layer 0 should be removed after the genesis flow is implemented
func GenesisLayer() *types.Layer {
l := types.NewLayer(types.GetEffectiveGenesis())
l.AddBlock(GenesisBlock())
return l
}
// GetATXs uses GetFullAtx to return a list of atxs corresponding to atxIds requested
func (msh *Mesh) GetATXs(atxIds []types.ATXID) (map[types.ATXID]*types.ActivationTx, []types.ATXID) {
var mIds []types.ATXID
atxs := make(map[types.ATXID]*types.ActivationTx, len(atxIds))
for _, id := range atxIds {
t, err := msh.GetFullAtx(id)
if err != nil {
msh.Warning("could not get atx %v from database, %v", id.ShortString(), err)
mIds = append(mIds, id)
} else {
atxs[t.ID()] = t
}
}
return atxs, mIds
}