139 lines
3.6 KiB
Go
139 lines
3.6 KiB
Go
package storage
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"math"
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"math/rand"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/lotus/api"
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"github.com/filecoin-project/lotus/chain/actors"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/lib/sectorbuilder"
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)
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func (m *Miner) storeGarbage(ctx context.Context, sectorID uint64, existingPieceSizes []uint64, sizes ...uint64) ([]Piece, error) {
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if len(sizes) == 0 {
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return nil, nil
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}
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deals := make([]actors.StorageDeal, len(sizes))
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for i, size := range sizes {
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commP, err := sectorbuilder.GeneratePieceCommitment(io.LimitReader(rand.New(rand.NewSource(42)), int64(size)), size)
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if err != nil {
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return nil, err
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}
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sdp := actors.StorageDealProposal{
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PieceRef: commP[:],
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PieceSize: size,
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PieceSerialization: actors.SerializationUnixFSv0,
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Client: m.worker,
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Provider: m.maddr,
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ProposalExpiration: math.MaxUint64,
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Duration: math.MaxUint64 / 2, // /2 because overflows
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StoragePricePerEpoch: types.NewInt(0),
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StorageCollateral: types.NewInt(0),
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ProposerSignature: nil,
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}
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if err := api.SignWith(ctx, m.api.WalletSign, m.worker, &sdp); err != nil {
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return nil, xerrors.Errorf("signing storage deal failed: ", err)
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}
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storageDeal := actors.StorageDeal{
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Proposal: sdp,
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}
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if err := api.SignWith(ctx, m.api.WalletSign, m.worker, &storageDeal); err != nil {
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return nil, xerrors.Errorf("signing storage deal failed: ", err)
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}
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deals[i] = storageDeal
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}
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params, aerr := actors.SerializeParams(&actors.PublishStorageDealsParams{
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Deals: deals,
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})
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if aerr != nil {
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return nil, xerrors.Errorf("serializing PublishStorageDeals params failed: ", aerr)
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}
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// TODO: We may want this to happen after fetching data
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smsg, err := m.api.MpoolPushMessage(ctx, &types.Message{
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To: actors.StorageMarketAddress,
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From: m.worker,
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Value: types.NewInt(0),
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GasPrice: types.NewInt(0),
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GasLimit: types.NewInt(1000000),
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Method: actors.SMAMethods.PublishStorageDeals,
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Params: params,
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})
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if err != nil {
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return nil, err
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}
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r, err := m.api.StateWaitMsg(ctx, smsg.Cid())
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if err != nil {
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return nil, err
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}
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if r.Receipt.ExitCode != 0 {
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log.Error(xerrors.Errorf("publishing deal failed: exit %d", r.Receipt.ExitCode))
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}
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var resp actors.PublishStorageDealResponse
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if err := resp.UnmarshalCBOR(bytes.NewReader(r.Receipt.Return)); err != nil {
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return nil, err
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}
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if len(resp.DealIDs) != len(sizes) {
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return nil, xerrors.New("got unexpected number of DealIDs from PublishStorageDeals")
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}
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out := make([]Piece, len(sizes))
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for i, size := range sizes {
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name := fmt.Sprintf("fake-file-%d", rand.Intn(100000000))
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ppi, err := m.sb.AddPiece(size, sectorID, io.LimitReader(rand.New(rand.NewSource(42)), int64(size)), existingPieceSizes)
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if err != nil {
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return nil, err
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}
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existingPieceSizes = append(existingPieceSizes, size)
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out[i] = Piece{
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DealID: resp.DealIDs[i],
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Ref: name,
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Size: ppi.Size,
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CommP: ppi.CommP[:],
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}
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}
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return out, nil
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}
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func (m *Miner) StoreGarbageData(_ context.Context) error {
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ctx := context.TODO()
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go func() {
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size := sectorbuilder.UserBytesForSectorSize(m.sb.SectorSize())
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sid, err := m.sb.AcquireSectorId()
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if err != nil {
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log.Errorf("%+v", err)
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return
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}
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pieces, err := m.storeGarbage(ctx, sid, []uint64{}, size)
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if err != nil {
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log.Errorf("%+v", err)
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return
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}
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if err := m.newSector(context.TODO(), sid, pieces[0].DealID, pieces[0].Ref, pieces[0].ppi()); err != nil {
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log.Errorf("%+v", err)
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return
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}
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}()
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return nil
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}
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