lotus/storage/winning_prover.go

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package storage
import (
"context"
"time"
logging "github.com/ipfs/go-log/v2"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/network"
"github.com/filecoin-project/lotus/api/v1api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors/builtin"
"github.com/filecoin-project/lotus/chain/gen"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/node/modules/dtypes"
"github.com/filecoin-project/lotus/storage/sealer/storiface"
)
var log = logging.Logger("storageminer")
type StorageWpp struct {
prover storiface.ProverPoSt
verifier storiface.Verifier
miner abi.ActorID
winnRpt abi.RegisteredPoStProof
}
func NewWinningPoStProver(api v1api.FullNode, prover storiface.ProverPoSt, verifier storiface.Verifier, miner dtypes.MinerID) (*StorageWpp, error) {
ma, err := address.NewIDAddress(uint64(miner))
if err != nil {
return nil, err
}
mi, err := api.StateMinerInfo(context.TODO(), ma, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("getting sector size: %w", err)
}
if build.InsecurePoStValidation {
log.Warn("*****************************************************************************")
log.Warn(" Generating fake PoSt proof! You should only see this while running tests! ")
log.Warn("*****************************************************************************")
}
return &StorageWpp{prover, verifier, abi.ActorID(miner), mi.WindowPoStProofType}, nil
}
var _ gen.WinningPoStProver = (*StorageWpp)(nil)
func (wpp *StorageWpp) GenerateCandidates(ctx context.Context, randomness abi.PoStRandomness, eligibleSectorCount uint64) ([]uint64, error) {
start := build.Clock.Now()
cds, err := wpp.verifier.GenerateWinningPoStSectorChallenge(ctx, wpp.winnRpt, wpp.miner, randomness, eligibleSectorCount)
if err != nil {
return nil, xerrors.Errorf("failed to generate candidates: %w", err)
}
log.Infof("Generate candidates took %s (C: %+v)", time.Since(start), cds)
return cds, nil
}
func (wpp *StorageWpp) ComputeProof(ctx context.Context, ssi []builtin.ExtendedSectorInfo, rand abi.PoStRandomness, currEpoch abi.ChainEpoch, nv network.Version) ([]builtin.PoStProof, error) {
if build.InsecurePoStValidation {
return []builtin.PoStProof{{ProofBytes: []byte("valid proof")}}, nil
}
log.Infof("Computing WinningPoSt ;%+v; %v", ssi, rand)
start := build.Clock.Now()
proof, err := wpp.prover.GenerateWinningPoSt(ctx, wpp.miner, ssi, rand)
if err != nil {
return nil, err
}
log.Infof("GenerateWinningPoSt took %s", time.Since(start))
return proof, nil
}