lotus/storage/miner.go
2019-11-30 17:21:11 -06:00

171 lines
5.2 KiB
Go

package storage
import (
"context"
"errors"
"sync"
"github.com/ipfs/go-cid"
"github.com/ipfs/go-datastore"
"github.com/ipfs/go-datastore/namespace"
logging "github.com/ipfs/go-log"
"github.com/libp2p/go-libp2p-core/host"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/address"
"github.com/filecoin-project/lotus/chain/events"
"github.com/filecoin-project/lotus/chain/gen"
"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/lib/statestore"
)
var log = logging.Logger("storageminer")
const SectorStorePrefix = "/sectors"
type Miner struct {
api storageMinerApi
events *events.Events
h host.Host
maddr address.Address
worker address.Address
// PoSt
postLk sync.Mutex
schedPost uint64
// Sealing
sb *sectorbuilder.SectorBuilder
sectors *statestore.StateStore
tktFn TicketFn
sectorIncoming chan *SectorInfo
sectorUpdated chan sectorUpdate
stop chan struct{}
stopped chan struct{}
}
type storageMinerApi interface {
// 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)
StateMinerElectionPeriodStart(ctx context.Context, actor address.Address, ts *types.TipSet) (uint64, error)
StateMinerSectors(context.Context, address.Address, *types.TipSet) ([]*api.ChainSectorInfo, error)
StateMinerProvingSet(context.Context, address.Address, *types.TipSet) ([]*api.ChainSectorInfo, error)
StateMinerSectorSize(context.Context, address.Address, *types.TipSet) (uint64, error)
StateWaitMsg(context.Context, cid.Cid) (*api.MsgWait, error) // TODO: removeme eventually
StateGetActor(ctx context.Context, actor address.Address, ts *types.TipSet) (*types.Actor, error)
StateGetReceipt(context.Context, cid.Cid, *types.TipSet) (*types.MessageReceipt, 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.TipSetKey, int64) ([]byte, error)
ChainGetTipSetByHeight(context.Context, uint64, *types.TipSet) (*types.TipSet, error)
ChainGetBlockMessages(context.Context, cid.Cid) (*api.BlockMessages, error)
WalletSign(context.Context, address.Address, []byte) (*types.Signature, 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, sb *sectorbuilder.SectorBuilder, tktFn TicketFn) (*Miner, error) {
return &Miner{
api: api,
maddr: addr,
h: h,
sb: sb,
tktFn: tktFn,
sectors: statestore.New(namespace.Wrap(ds, datastore.NewKey(SectorStorePrefix))),
sectorIncoming: make(chan *SectorInfo),
sectorUpdated: make(chan sectorUpdate),
stop: make(chan struct{}),
stopped: make(chan struct{}),
}, nil
}
func (m *Miner) Run(ctx context.Context) error {
if err := m.runPreflightChecks(ctx); err != nil {
return xerrors.Errorf("miner preflight checks failed: %w", err)
}
m.events = events.NewEvents(ctx, m.api)
fps := &fpostScheduler{
api: m.api,
sb: m.sb,
actor: m.maddr,
worker: m.worker,
}
go fps.run(ctx)
go m.sectorStateLoop(ctx)
return nil
}
func (m *Miner) Stop(ctx context.Context) error {
close(m.stop)
select {
case <-m.stopped:
return nil
case <-ctx.Done():
return ctx.Err()
}
}
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 xerrors.Errorf("failed to check wallet for worker key: %w", err)
}
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
}
type sectorBuilderEpp struct {
sb *sectorbuilder.SectorBuilder
}
func NewElectionPoStProver(sb *sectorbuilder.SectorBuilder) *sectorBuilderEpp {
return &sectorBuilderEpp{sb}
}
var _ gen.ElectionPoStProver = (*sectorBuilderEpp)(nil)
func (epp *sectorBuilderEpp) GenerateCandidates(ctx context.Context, ssi sectorbuilder.SortedPublicSectorInfo, rand []byte) ([]sectorbuilder.EPostCandidate, error) {
var faults []uint64 // TODO
var randbuf [32]byte
copy(randbuf[:], rand)
return epp.sb.GenerateEPostCandidates(ssi, randbuf, faults)
}
func (epp *sectorBuilderEpp) ComputeProof(ctx context.Context, ssi sectorbuilder.SortedPublicSectorInfo, rand []byte, winners []sectorbuilder.EPostCandidate) ([]byte, error) {
if build.InsecurePoStValidation {
log.Warn("Generating fake EPost proof! You should only see this while running tests!")
return []byte("valid proof"), nil
}
return epp.sb.ComputeElectionPoSt(ssi, rand, winners)
}