lotus/storage/fpost_run.go

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package storage
import (
"context"
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"time"
ffi "github.com/filecoin-project/filecoin-ffi"
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"go.opencensus.io/trace"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/lib/sectorbuilder"
)
func (s *fpostScheduler) doPost(ctx context.Context, eps uint64, ts *types.TipSet) {
ctx, abort := context.WithCancel(ctx)
s.abort = abort
s.activeEPS = eps
go func() {
defer abort()
ctx, span := trace.StartSpan(ctx, "fpostScheduler.doPost")
defer span.End()
proof, err := s.runPost(ctx, eps, ts)
if err != nil {
log.Errorf("runPost failed: %+v", err)
return
}
if err := s.submitPost(ctx, proof); err != nil {
log.Errorf("submitPost failed: %+v", err)
return
}
}()
}
func (s *fpostScheduler) runPost(ctx context.Context, eps uint64, ts *types.TipSet) (*actors.SubmitFallbackPoStParams, error) {
ctx, span := trace.StartSpan(ctx, "storage.runPost")
defer span.End()
challengeRound := int64(eps + build.FallbackPoStDelay)
rand, err := s.api.ChainGetRandomness(ctx, ts.Key(), challengeRound)
if err != nil {
return nil, xerrors.Errorf("failed to get chain randomness for fpost (ts=%d; eps=%d): %w", ts.Height(), eps, err)
}
ssi, err := s.sortedSectorInfo(ctx, ts)
if err != nil {
return nil, xerrors.Errorf("getting sorted sector info: %w", err)
}
log.Infow("running fPoSt", "chain-random", rand, "eps", eps, "height", ts.Height())
tsStart := time.Now()
var faults []uint64 // TODO
var seed [32]byte
copy(seed[:], rand)
scandidates, proof, err := s.sb.GenerateFallbackPoSt(ssi, seed, faults)
if err != nil {
return nil, xerrors.Errorf("running post failed: %w", err)
}
elapsed := time.Since(tsStart)
log.Infow("submitting PoSt", "pLen", len(proof), "elapsed", elapsed)
candidates := make([]types.EPostTicket, len(scandidates))
for i, sc := range scandidates {
part := make([]byte, 32)
copy(part, sc.PartialTicket[:])
candidates[i] = types.EPostTicket{
Partial: part,
SectorID: sc.SectorID,
ChallengeIndex: sc.SectorChallengeIndex,
}
}
return &actors.SubmitFallbackPoStParams{
Proof: proof,
Candidates: candidates,
}, nil
}
func (s *fpostScheduler) sortedSectorInfo(ctx context.Context, ts *types.TipSet) (sectorbuilder.SortedPublicSectorInfo, error) {
sset, err := s.api.StateMinerProvingSet(ctx, s.actor, ts)
if err != nil {
return sectorbuilder.SortedPublicSectorInfo{}, xerrors.Errorf("failed to get proving set for miner (tsH: %d): %w", ts.Height(), err)
}
if len(sset) == 0 {
log.Warn("empty proving set! (ts.H: %d)", ts.Height())
}
sbsi := make([]ffi.PublicSectorInfo, len(sset))
for k, sector := range sset {
var commR [sectorbuilder.CommLen]byte
copy(commR[:], sector.CommR)
sbsi[k] = ffi.PublicSectorInfo{
SectorID: sector.SectorID,
CommR: commR,
}
}
return sectorbuilder.NewSortedPublicSectorInfo(sbsi), nil
}
func (s *fpostScheduler) submitPost(ctx context.Context, proof *actors.SubmitFallbackPoStParams) error {
ctx, span := trace.StartSpan(ctx, "storage.commitPost")
defer span.End()
enc, aerr := actors.SerializeParams(proof)
if aerr != nil {
return xerrors.Errorf("could not serialize submit post parameters: %w", aerr)
}
msg := &types.Message{
To: s.actor,
From: s.worker,
Method: actors.MAMethods.SubmitFallbackPoSt,
Params: enc,
Value: types.NewInt(1000), // currently hard-coded late fee in actor, returned if not late
GasLimit: types.NewInt(10000000), // i dont know help
GasPrice: types.NewInt(1),
}
// TODO: consider maybe caring about the output
sm, err := s.api.MpoolPushMessage(ctx, msg)
if err != nil {
return xerrors.Errorf("pushing message to mpool: %w", err)
}
log.Infof("Submitted fallback post: %s", sm.Cid())
return nil
}