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power.go
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power.go
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package nv4
import (
"context"
address "github.com/chenjianmei111/go-address"
"github.com/chenjianmei111/go-state-types/abi"
"github.com/chenjianmei111/go-state-types/big"
miner0 "github.com/chenjianmei111/specs-actors/actors/builtin/miner"
power0 "github.com/chenjianmei111/specs-actors/actors/builtin/power"
states0 "github.com/chenjianmei111/specs-actors/actors/states"
adt0 "github.com/chenjianmei111/specs-actors/actors/util/adt"
cid "github.com/ipfs/go-cid"
cbor "github.com/ipfs/go-ipld-cbor"
"golang.org/x/xerrors"
power2 "github.com/chenjianmei111/specs-actors/v2/actors/builtin/power"
adt2 "github.com/chenjianmei111/specs-actors/v2/actors/util/adt"
smoothing2 "github.com/chenjianmei111/specs-actors/v2/actors/util/smoothing"
)
type powerMigrator struct {
actorsIn *states0.Tree
powerUpdates *PowerUpdates
}
func (m powerMigrator) MigrateState(ctx context.Context, store cbor.IpldStore, head cid.Cid, info MigrationInfo) (*StateMigrationResult, error) {
var inState power0.State
if err := store.Get(ctx, head, &inState); err != nil {
return nil, err
}
cronEventsRoot, err := m.updateCronEvents(ctx, store, inState.CronEventQueue, m.powerUpdates)
if err != nil {
return nil, xerrors.Errorf("could not update cron events: %w", err)
}
cronEventsRoot, err = m.migrateCronEvents(ctx, store, cronEventsRoot)
if err != nil {
return nil, xerrors.Errorf("cron events: %w", err)
}
claimsRoot, err := m.updateClaims(ctx, store, inState.Claims, m.powerUpdates)
if err != nil {
return nil, xerrors.Errorf("claims: %w", err)
}
claimsRoot, err = m.migrateClaims(ctx, store, claimsRoot)
if err != nil {
return nil, xerrors.Errorf("claims: %w", err)
}
outState := power2.State{
TotalRawBytePower: inState.TotalRawBytePower,
TotalBytesCommitted: inState.TotalBytesCommitted,
TotalQualityAdjPower: inState.TotalQualityAdjPower,
TotalQABytesCommitted: inState.TotalQABytesCommitted,
TotalPledgeCollateral: inState.TotalPledgeCollateral,
ThisEpochRawBytePower: inState.ThisEpochRawBytePower,
ThisEpochQualityAdjPower: inState.ThisEpochQualityAdjPower,
ThisEpochPledgeCollateral: inState.ThisEpochPledgeCollateral,
ThisEpochQAPowerSmoothed: smoothing2.FilterEstimate(*inState.ThisEpochQAPowerSmoothed),
MinerCount: inState.MinerCount,
MinerAboveMinPowerCount: inState.MinerAboveMinPowerCount,
CronEventQueue: cronEventsRoot,
FirstCronEpoch: inState.FirstCronEpoch,
Claims: claimsRoot,
ProofValidationBatch: nil, // Set nil at the end of every epoch in cron handler
}
newHead, err := store.Put(ctx, &outState)
return &StateMigrationResult{
NewHead: newHead,
Transfer: big.Zero(),
}, err
}
func (m *powerMigrator) updateCronEvents(ctx context.Context, store cbor.IpldStore, cronRoot cid.Cid, powerUpdates *PowerUpdates) (cid.Cid, error) {
crons, err := adt0.AsMultimap(adt0.WrapStore(ctx, store), cronRoot)
if err != nil {
return cid.Undef, err
}
for epoch, cronEvents := range powerUpdates.crons { // nolint:nomaprange
for _, event := range cronEvents {
if err := crons.Add(abi.IntKey(int64(epoch)), &event); err != nil {
return cid.Undef, err
}
}
}
return crons.Root()
}
func (m *powerMigrator) migrateCronEvents(ctx context.Context, store cbor.IpldStore, root cid.Cid) (cid.Cid, error) {
// The HAMT has changed, but the value (an AMT[CronEvent] root) is identical.
// The AMT queues may contain miner0.CronEventWorkerKeyChange, but these will be ignored by the miner
// actor so are safe to leave behind.
var _ = power0.CronEvent(power2.CronEvent{})
return migrateHAMTRaw(ctx, store, root)
}
func (m *powerMigrator) updateClaims(ctx context.Context, store cbor.IpldStore, root cid.Cid, updates *PowerUpdates) (cid.Cid, error) {
claims, err := adt0.AsMap(adt0.WrapStore(ctx, store), root)
if err != nil {
return cid.Undef, err
}
for addr, claim := range updates.claims { // nolint:nomaprange
if err := claims.Put(abi.AddrKey(addr), &claim); err != nil {
return cid.Undef, err
}
}
return claims.Root()
}
func (m *powerMigrator) migrateClaims(ctx context.Context, store cbor.IpldStore, root cid.Cid) (cid.Cid, error) {
inMap, err := adt0.AsMap(adt0.WrapStore(ctx, store), root)
if err != nil {
return cid.Undef, err
}
outMap := adt2.MakeEmptyMap(adt2.WrapStore(ctx, store))
var inClaim power0.Claim
if err = inMap.ForEach(&inClaim, func(key string) error {
// look up seal proof type from miner actor
a, err := address.NewFromBytes([]byte(key))
if err != nil {
return err
}
minerActor, found, err := m.actorsIn.GetActor(address.Address(a))
if err != nil {
return err
}
if !found {
return xerrors.Errorf("claim exists for miner %s but miner not in state tree", a)
}
var minerState miner0.State
if err := store.Get(ctx, minerActor.Head, &minerState); err != nil {
return err
}
info, err := minerState.GetInfo(adt0.WrapStore(ctx, store))
if err != nil {
return err
}
outClaim := power2.Claim{
SealProofType: info.SealProofType,
RawBytePower: inClaim.RawBytePower,
QualityAdjPower: inClaim.QualityAdjPower,
}
return outMap.Put(StringKey(key), &outClaim)
}); err != nil {
return cid.Undef, err
}
return outMap.Root()
}