package storage import ( "context" "sync" "github.com/ipfs/go-cid" "github.com/ipfs/go-datastore" logging "github.com/ipfs/go-log" "github.com/libp2p/go-libp2p-core/host" "github.com/pkg/errors" "github.com/filecoin-project/lotus/api" "github.com/filecoin-project/lotus/build" "github.com/filecoin-project/lotus/chain/actors" "github.com/filecoin-project/lotus/chain/address" "github.com/filecoin-project/lotus/chain/events" "github.com/filecoin-project/lotus/chain/store" "github.com/filecoin-project/lotus/chain/types" "github.com/filecoin-project/lotus/lib/sectorbuilder" "github.com/filecoin-project/lotus/storage/commitment" "github.com/filecoin-project/lotus/storage/sector" ) var log = logging.Logger("storageminer") const PoStConfidence = 3 type Miner struct { api storageMinerApi events *events.Events secst *sector.Store commt *commitment.Tracker maddr address.Address worker address.Address h host.Host ds datastore.Batching schedLk sync.Mutex schedPost uint64 } type storageMinerApi interface { // I think I want this... but this is tricky //ReadState(ctx context.Context, addr address.Address) (????, error) // Call a read only method on actors (no interaction with the chain required) StateCall(ctx context.Context, msg *types.Message, ts *types.TipSet) (*types.MessageReceipt, error) StateMinerWorker(context.Context, address.Address, *types.TipSet) (address.Address, error) StateMinerProvingPeriodEnd(context.Context, address.Address, *types.TipSet) (uint64, error) StateMinerProvingSet(context.Context, address.Address, *types.TipSet) ([]*api.SectorInfo, error) StateWaitMsg(context.Context, cid.Cid) (*api.MsgWait, error) MpoolPushMessage(context.Context, *types.Message) (*types.SignedMessage, error) ChainHead(context.Context) (*types.TipSet, error) ChainNotify(context.Context) (<-chan []*store.HeadChange, error) ChainGetRandomness(context.Context, *types.TipSet, []*types.Ticket, int) ([]byte, error) ChainGetTipSetByHeight(context.Context, uint64, *types.TipSet) (*types.TipSet, error) ChainGetBlockMessages(context.Context, cid.Cid) (*api.BlockMessages, error) WalletBalance(context.Context, address.Address) (types.BigInt, error) WalletHas(context.Context, address.Address) (bool, error) } func NewMiner(api storageMinerApi, addr address.Address, h host.Host, ds datastore.Batching, secst *sector.Store, commt *commitment.Tracker) (*Miner, error) { return &Miner{ api: api, maddr: addr, h: h, ds: ds, secst: secst, commt: commt, }, nil } func (m *Miner) Run(ctx context.Context) error { if err := m.runPreflightChecks(ctx); err != nil { return errors.Wrap(err, "miner preflight checks failed") } m.events = events.NewEvents(ctx, m.api) go m.handlePostingSealedSectors(ctx) go m.beginPosting(ctx) return nil } func (m *Miner) handlePostingSealedSectors(ctx context.Context) { incoming := m.secst.Incoming() defer m.secst.CloseIncoming(incoming) for { select { case sinfo, ok := <-incoming: if !ok { // TODO: set some state variable so that this state can be // visible via some status command log.Warn("sealed sector channel closed, aborting process") return } if err := m.commitSector(ctx, sinfo); err != nil { log.Errorf("failed to commit sector: %s", err) continue } case <-ctx.Done(): log.Warn("exiting seal posting routine") return } } } func (m *Miner) commitSector(ctx context.Context, sinfo sectorbuilder.SectorSealingStatus) error { log.Info("committing sector") ok, err := sectorbuilder.VerifySeal(build.SectorSize, sinfo.CommR[:], sinfo.CommD[:], sinfo.CommRStar[:], m.maddr, sinfo.SectorID, sinfo.Proof) if err != nil { log.Error("failed to verify seal we just created: ", err) } if !ok { log.Error("seal we just created failed verification") } params := &actors.OnChainSealVerifyInfo{ SectorNumber: sinfo.SectorID, CommD: sinfo.CommD[:], CommR: sinfo.CommR[:], CommRStar: sinfo.CommRStar[:], Proof: sinfo.Proof, } enc, aerr := actors.SerializeParams(params) if aerr != nil { return errors.Wrap(aerr, "could not serialize commit sector parameters") } msg := &types.Message{ To: m.maddr, From: m.worker, Method: actors.MAMethods.CommitSector, Params: enc, Value: types.NewInt(0), // TODO: need to ensure sufficient collateral GasLimit: types.NewInt(1000000 /* i dont know help */), GasPrice: types.NewInt(1), } smsg, err := m.api.MpoolPushMessage(ctx, msg) if err != nil { return errors.Wrap(err, "pushing message to mpool") } if err := m.commt.TrackCommitSectorMsg(m.maddr, sinfo.SectorID, smsg.Cid()); err != nil { return errors.Wrap(err, "tracking sector commitment") } go func() { _, err := m.api.StateWaitMsg(ctx, smsg.Cid()) if err != nil { return } m.beginPosting(ctx) }() return nil } func (m *Miner) runPreflightChecks(ctx context.Context) error { worker, err := m.api.StateMinerWorker(ctx, m.maddr, nil) if err != nil { return err } m.worker = worker has, err := m.api.WalletHas(ctx, worker) if err != nil { return errors.Wrap(err, "failed to check wallet for worker key") } if !has { return errors.New("key for worker not found in local wallet") } log.Infof("starting up miner %s, worker addr %s", m.maddr, m.worker) return nil }