lotus/storage/sealer/ffiwrapper/sealer_cgo.go

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//go:build cgo
// +build cgo
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package ffiwrapper
import (
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"bufio"
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"bytes"
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"context"
"crypto/rand"
"encoding/base64"
"encoding/json"
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"io"
"math/bits"
"os"
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"runtime"
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"github.com/detailyang/go-fallocate"
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"github.com/ipfs/go-cid"
"golang.org/x/xerrors"
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ffi "github.com/filecoin-project/filecoin-ffi"
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rlepluslazy "github.com/filecoin-project/go-bitfield/rle"
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commpffi "github.com/filecoin-project/go-commp-utils/ffiwrapper"
"github.com/filecoin-project/go-commp-utils/zerocomm"
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commcid "github.com/filecoin-project/go-fil-commcid"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/go-state-types/proof"
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"github.com/filecoin-project/lotus/lib/nullreader"
nr "github.com/filecoin-project/lotus/storage/pipeline/lib/nullreader"
"github.com/filecoin-project/lotus/storage/sealer/fr32"
"github.com/filecoin-project/lotus/storage/sealer/partialfile"
"github.com/filecoin-project/lotus/storage/sealer/storiface"
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)
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var _ storiface.Storage = &Sealer{}
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func New(sectors SectorProvider) (*Sealer, error) {
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sb := &Sealer{
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sectors: sectors,
stopping: make(chan struct{}),
}
return sb, nil
}
func (sb *Sealer) NewSector(ctx context.Context, sector storiface.SectorRef) error {
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// TODO: Allocate the sector here instead of in addpiece
return nil
}
func (sb *Sealer) DataCid(ctx context.Context, pieceSize abi.UnpaddedPieceSize, pieceData storiface.Data) (abi.PieceInfo, error) {
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origPieceData := pieceData
defer func() {
closer, ok := origPieceData.(io.Closer)
if !ok {
log.Warnf("DataCid: cannot close pieceData reader %T because it is not an io.Closer", origPieceData)
return
}
if err := closer.Close(); err != nil {
log.Warnw("closing pieceData in DataCid", "error", err)
}
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}()
pieceData = io.LimitReader(io.MultiReader(
pieceData,
nullreader.Reader{},
), int64(pieceSize))
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// TODO: allow tuning those:
chunk := abi.PaddedPieceSize(4 << 20)
parallel := runtime.NumCPU()
maxSizeSpt := abi.RegisteredSealProof_StackedDrg64GiBV1_1
throttle := make(chan []byte, parallel)
piecePromises := make([]func() (abi.PieceInfo, error), 0)
buf := make([]byte, chunk.Unpadded())
for i := 0; i < parallel; i++ {
if abi.UnpaddedPieceSize(i)*chunk.Unpadded() >= pieceSize {
break // won't use this many buffers
}
throttle <- make([]byte, chunk.Unpadded())
}
for {
var read int
for rbuf := buf; len(rbuf) > 0; {
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n, err := pieceData.Read(rbuf)
if err != nil && err != io.EOF {
return abi.PieceInfo{}, xerrors.Errorf("pr read error: %w", err)
}
rbuf = rbuf[n:]
read += n
if err == io.EOF {
break
}
}
if read == 0 {
break
}
done := make(chan struct {
cid.Cid
error
}, 1)
pbuf := <-throttle
copy(pbuf, buf[:read])
go func(read int) {
defer func() {
throttle <- pbuf
}()
c, err := sb.pieceCid(maxSizeSpt, pbuf[:read])
done <- struct {
cid.Cid
error
}{c, err}
}(read)
piecePromises = append(piecePromises, func() (abi.PieceInfo, error) {
select {
case e := <-done:
if e.error != nil {
return abi.PieceInfo{}, e.error
}
return abi.PieceInfo{
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Size: abi.UnpaddedPieceSize(read).Padded(),
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PieceCID: e.Cid,
}, nil
case <-ctx.Done():
return abi.PieceInfo{}, ctx.Err()
}
})
}
if len(piecePromises) == 1 {
return piecePromises[0]()
}
var payloadRoundedBytes abi.PaddedPieceSize
pieceCids := make([]abi.PieceInfo, len(piecePromises))
for i, promise := range piecePromises {
pinfo, err := promise()
if err != nil {
return abi.PieceInfo{}, err
}
pieceCids[i] = pinfo
payloadRoundedBytes += pinfo.Size
}
pieceCID, err := ffi.GenerateUnsealedCID(maxSizeSpt, pieceCids)
if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("generate unsealed CID: %w", err)
}
// validate that the pieceCID was properly formed
if _, err := commcid.CIDToPieceCommitmentV1(pieceCID); err != nil {
return abi.PieceInfo{}, err
}
if payloadRoundedBytes < pieceSize.Padded() {
paddedCid, err := commpffi.ZeroPadPieceCommitment(pieceCID, payloadRoundedBytes.Unpadded(), pieceSize)
if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("failed to pad data: %w", err)
}
pieceCID = paddedCid
}
return abi.PieceInfo{
Size: pieceSize.Padded(),
PieceCID: pieceCID,
}, nil
}
func (sb *Sealer) AddPiece(ctx context.Context, sector storiface.SectorRef, existingPieceSizes []abi.UnpaddedPieceSize, pieceSize abi.UnpaddedPieceSize, pieceData storiface.Data) (abi.PieceInfo, error) {
origPieceData := pieceData
defer func() {
closer, ok := origPieceData.(io.Closer)
if !ok {
log.Warnf("AddPiece: cannot close pieceData reader %T because it is not an io.Closer", origPieceData)
return
}
if err := closer.Close(); err != nil {
log.Warnw("closing pieceData in AddPiece", "error", err)
}
}()
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// TODO: allow tuning those:
chunk := abi.PaddedPieceSize(4 << 20)
parallel := runtime.NumCPU()
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var offset abi.UnpaddedPieceSize
for _, size := range existingPieceSizes {
offset += size
}
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return abi.PieceInfo{}, err
}
maxPieceSize := abi.PaddedPieceSize(ssize)
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if offset.Padded()+pieceSize.Padded() > maxPieceSize {
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return abi.PieceInfo{}, xerrors.Errorf("can't add %d byte piece to sector %v with %d bytes of existing pieces", pieceSize, sector, offset)
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}
var done func()
var stagedFile *partialfile.PartialFile
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defer func() {
if done != nil {
done()
}
if stagedFile != nil {
if err := stagedFile.Close(); err != nil {
log.Errorf("closing staged file: %+v", err)
}
}
}()
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var stagedPath storiface.SectorPaths
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if len(existingPieceSizes) == 0 {
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stagedPath, done, err = sb.sectors.AcquireSector(ctx, sector, 0, storiface.FTUnsealed, storiface.PathSealing)
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if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("acquire unsealed sector: %w", err)
}
stagedFile, err = partialfile.CreatePartialFile(maxPieceSize, stagedPath.Unsealed)
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if err != nil {
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return abi.PieceInfo{}, xerrors.Errorf("creating unsealed sector file: %w", err)
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}
} else {
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stagedPath, done, err = sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed, 0, storiface.PathSealing)
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if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("acquire unsealed sector: %w", err)
}
stagedFile, err = partialfile.OpenPartialFile(maxPieceSize, stagedPath.Unsealed)
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if err != nil {
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return abi.PieceInfo{}, xerrors.Errorf("opening unsealed sector file: %w", err)
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}
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}
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w, err := stagedFile.Writer(storiface.UnpaddedByteIndex(offset).Padded(), pieceSize.Padded())
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if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("getting partial file writer: %w", err)
}
pw := fr32.NewPadWriter(w)
pr := io.TeeReader(io.LimitReader(pieceData, int64(pieceSize)), pw)
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throttle := make(chan []byte, parallel)
piecePromises := make([]func() (abi.PieceInfo, error), 0)
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buf := make([]byte, chunk.Unpadded())
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for i := 0; i < parallel; i++ {
if abi.UnpaddedPieceSize(i)*chunk.Unpadded() >= pieceSize {
break // won't use this many buffers
}
throttle <- make([]byte, chunk.Unpadded())
}
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for {
var read int
for rbuf := buf; len(rbuf) > 0; {
n, err := pr.Read(rbuf)
if err != nil && err != io.EOF {
return abi.PieceInfo{}, xerrors.Errorf("pr read error: %w", err)
}
rbuf = rbuf[n:]
read += n
if err == io.EOF {
break
}
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}
if read == 0 {
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break
}
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done := make(chan struct {
cid.Cid
error
}, 1)
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pbuf := <-throttle
copy(pbuf, buf[:read])
go func(read int) {
defer func() {
throttle <- pbuf
}()
c, err := sb.pieceCid(sector.ProofType, pbuf[:read])
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done <- struct {
cid.Cid
error
}{c, err}
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}(read)
piecePromises = append(piecePromises, func() (abi.PieceInfo, error) {
select {
case e := <-done:
if e.error != nil {
return abi.PieceInfo{}, e.error
}
return abi.PieceInfo{
Size: abi.UnpaddedPieceSize(len(buf[:read])).Padded(),
PieceCID: e.Cid,
}, nil
case <-ctx.Done():
return abi.PieceInfo{}, ctx.Err()
}
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})
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}
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if err := pw.Close(); err != nil {
return abi.PieceInfo{}, xerrors.Errorf("closing padded writer: %w", err)
}
if err := stagedFile.MarkAllocated(storiface.UnpaddedByteIndex(offset).Padded(), pieceSize.Padded()); err != nil {
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return abi.PieceInfo{}, xerrors.Errorf("marking data range as allocated: %w", err)
}
if err := stagedFile.Close(); err != nil {
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return abi.PieceInfo{}, err
}
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stagedFile = nil
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if len(piecePromises) == 1 {
return piecePromises[0]()
}
var payloadRoundedBytes abi.PaddedPieceSize
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pieceCids := make([]abi.PieceInfo, len(piecePromises))
for i, promise := range piecePromises {
pinfo, err := promise()
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if err != nil {
return abi.PieceInfo{}, err
}
pieceCids[i] = pinfo
payloadRoundedBytes += pinfo.Size
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}
pieceCID, err := ffi.GenerateUnsealedCID(sector.ProofType, pieceCids)
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if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("generate unsealed CID: %w", err)
}
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// validate that the pieceCID was properly formed
if _, err := commcid.CIDToPieceCommitmentV1(pieceCID); err != nil {
return abi.PieceInfo{}, err
}
if payloadRoundedBytes < pieceSize.Padded() {
paddedCid, err := commpffi.ZeroPadPieceCommitment(pieceCID, payloadRoundedBytes.Unpadded(), pieceSize)
if err != nil {
return abi.PieceInfo{}, xerrors.Errorf("failed to pad data: %w", err)
}
pieceCID = paddedCid
}
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return abi.PieceInfo{
Size: pieceSize.Padded(),
PieceCID: pieceCID,
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}, nil
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}
func (sb *Sealer) pieceCid(spt abi.RegisteredSealProof, in []byte) (cid.Cid, error) {
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prf, werr, err := commpffi.ToReadableFile(bytes.NewReader(in), int64(len(in)))
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if err != nil {
return cid.Undef, xerrors.Errorf("getting tee reader pipe: %w", err)
}
pieceCID, err := ffi.GeneratePieceCIDFromFile(spt, prf, abi.UnpaddedPieceSize(len(in)))
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if err != nil {
return cid.Undef, xerrors.Errorf("generating piece commitment: %w", err)
}
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_ = prf.Close()
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return pieceCID, werr()
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}
func (sb *Sealer) tryDecodeUpdatedReplica(ctx context.Context, sector storiface.SectorRef, commD cid.Cid, unsealedPath string, randomness abi.SealRandomness) (bool, error) {
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replicaPath, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUpdate|storiface.FTUpdateCache, storiface.FTNone, storiface.PathStorage)
if xerrors.Is(err, storiface.ErrSectorNotFound) {
return false, nil
} else if err != nil {
return false, xerrors.Errorf("reading updated replica: %w", err)
}
defer done()
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sealedPaths, done2, err := sb.AcquireSectorKeyOrRegenerate(ctx, sector, randomness)
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if err != nil {
return false, xerrors.Errorf("acquiring sealed sector: %w", err)
}
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defer done2()
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// Sector data stored in replica update
updateProof, err := sector.ProofType.RegisteredUpdateProof()
if err != nil {
return false, err
}
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return true, ffi.SectorUpdate.DecodeFrom(updateProof, unsealedPath, replicaPath.Update, sealedPaths.Sealed, sealedPaths.Cache, commD)
}
func (sb *Sealer) AcquireSectorKeyOrRegenerate(ctx context.Context, sector storiface.SectorRef, randomness abi.SealRandomness) (storiface.SectorPaths, func(), error) {
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTSealed|storiface.FTCache, storiface.FTNone, storiface.PathStorage)
if err == nil {
return paths, done, err
} else if !xerrors.Is(err, storiface.ErrSectorNotFound) {
return paths, done, xerrors.Errorf("reading sector key: %w", err)
}
// Sector key can't be found, so let's regenerate it
sectorSize, err := sector.ProofType.SectorSize()
if err != nil {
return paths, done, xerrors.Errorf("retrieving sector size: %w", err)
}
paddedSize := abi.PaddedPieceSize(sectorSize)
_, err = sb.AddPiece(ctx, sector, nil, paddedSize.Unpadded(), nr.NewNullReader(paddedSize.Unpadded()))
if err != nil {
return paths, done, xerrors.Errorf("recomputing empty data: %w", err)
}
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err = sb.RegenerateSectorKey(ctx, sector, randomness, []abi.PieceInfo{{PieceCID: zerocomm.ZeroPieceCommitment(paddedSize.Unpadded()), Size: paddedSize}})
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if err != nil {
return paths, done, xerrors.Errorf("during pc1: %w", err)
}
// Sector key should exist now, let's grab the paths
return sb.sectors.AcquireSector(ctx, sector, storiface.FTSealed|storiface.FTCache, storiface.FTNone, storiface.PathStorage)
}
func (sb *Sealer) UnsealPiece(ctx context.Context, sector storiface.SectorRef, offset storiface.UnpaddedByteIndex, size abi.UnpaddedPieceSize, randomness abi.SealRandomness, commd cid.Cid) error {
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return err
}
maxPieceSize := abi.PaddedPieceSize(ssize)
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// try finding existing
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unsealedPath, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed, storiface.FTNone, storiface.PathStorage)
var pf *partialfile.PartialFile
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switch {
case xerrors.Is(err, storiface.ErrSectorNotFound):
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unsealedPath, done, err = sb.sectors.AcquireSector(ctx, sector, storiface.FTNone, storiface.FTUnsealed, storiface.PathStorage)
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if err != nil {
return xerrors.Errorf("acquire unsealed sector path (allocate): %w", err)
}
defer done()
pf, err = partialfile.CreatePartialFile(maxPieceSize, unsealedPath.Unsealed)
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if err != nil {
return xerrors.Errorf("create unsealed file: %w", err)
}
case err == nil:
defer done()
pf, err = partialfile.OpenPartialFile(maxPieceSize, unsealedPath.Unsealed)
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if err != nil {
return xerrors.Errorf("opening partial file: %w", err)
}
default:
return xerrors.Errorf("acquire unsealed sector path (existing): %w", err)
}
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defer pf.Close() // nolint
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allocated, err := pf.Allocated()
if err != nil {
return xerrors.Errorf("getting bitruns of allocated data: %w", err)
}
toUnseal, err := computeUnsealRanges(allocated, offset, size)
if err != nil {
return xerrors.Errorf("computing unseal ranges: %w", err)
}
if !toUnseal.HasNext() {
return nil
}
// If piece data stored in updated replica decode whole sector
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decoded, err := sb.tryDecodeUpdatedReplica(ctx, sector, commd, unsealedPath.Unsealed, randomness)
if err != nil {
return xerrors.Errorf("decoding sector from replica: %w", err)
}
if decoded {
return pf.MarkAllocated(0, maxPieceSize)
}
// Piece data sealed in sector
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srcPaths, srcDone, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTCache|storiface.FTSealed, storiface.FTNone, storiface.PathStorage)
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if err != nil {
return xerrors.Errorf("acquire sealed sector paths: %w", err)
}
defer srcDone()
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sealed, err := os.OpenFile(srcPaths.Sealed, os.O_RDONLY, 0644) // nolint:gosec
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if err != nil {
return xerrors.Errorf("opening sealed file: %w", err)
}
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defer sealed.Close() // nolint
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var at, nextat abi.PaddedPieceSize
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first := true
for first || toUnseal.HasNext() {
first = false
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piece, err := toUnseal.NextRun()
if err != nil {
return xerrors.Errorf("getting next range to unseal: %w", err)
}
at = nextat
nextat += abi.PaddedPieceSize(piece.Len)
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if !piece.Val {
continue
}
out, err := pf.Writer(offset.Padded(), size.Padded())
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if err != nil {
return xerrors.Errorf("getting partial file writer: %w", err)
}
// <eww>
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opr, opw, err := os.Pipe()
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if err != nil {
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return xerrors.Errorf("creating out pipe: %w", err)
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}
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var perr error
outWait := make(chan struct{})
{
go func() {
defer close(outWait)
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defer opr.Close() // nolint
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padwriter := fr32.NewPadWriter(out)
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bsize := uint64(size.Padded())
if bsize > uint64(runtime.NumCPU())*fr32.MTTresh {
bsize = uint64(runtime.NumCPU()) * fr32.MTTresh
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}
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bw := bufio.NewWriterSize(padwriter, int(abi.PaddedPieceSize(bsize).Unpadded()))
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_, err := io.CopyN(bw, opr, int64(size))
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if err != nil {
perr = xerrors.Errorf("copying data: %w", err)
return
}
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if err := bw.Flush(); err != nil {
perr = xerrors.Errorf("flushing unpadded data: %w", err)
return
}
if err := padwriter.Close(); err != nil {
perr = xerrors.Errorf("closing padwriter: %w", err)
return
}
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}()
}
// </eww>
// TODO: This may be possible to do in parallel
err = ffi.UnsealRange(sector.ProofType,
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srcPaths.Cache,
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sealed,
opw,
sector.ID.Number,
sector.ID.Miner,
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randomness,
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commd,
uint64(at.Unpadded()),
uint64(abi.PaddedPieceSize(piece.Len).Unpadded()))
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_ = opw.Close()
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if err != nil {
return xerrors.Errorf("unseal range: %w", err)
}
select {
case <-outWait:
case <-ctx.Done():
return ctx.Err()
}
if perr != nil {
return xerrors.Errorf("piping output to unsealed file: %w", perr)
}
if err := pf.MarkAllocated(storiface.PaddedByteIndex(at), abi.PaddedPieceSize(piece.Len)); err != nil {
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return xerrors.Errorf("marking unsealed range as allocated: %w", err)
}
if !toUnseal.HasNext() {
break
}
}
return nil
}
func (sb *Sealer) ReadPiece(ctx context.Context, writer io.Writer, sector storiface.SectorRef, offset storiface.UnpaddedByteIndex, size abi.UnpaddedPieceSize) (bool, error) {
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path, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed, storiface.FTNone, storiface.PathStorage)
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if err != nil {
return false, xerrors.Errorf("acquire unsealed sector path: %w", err)
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}
defer done()
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return false, err
}
maxPieceSize := abi.PaddedPieceSize(ssize)
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pf, err := partialfile.OpenPartialFile(maxPieceSize, path.Unsealed)
if err != nil {
if xerrors.Is(err, os.ErrNotExist) {
return false, nil
}
return false, xerrors.Errorf("opening partial file: %w", err)
}
ok, err := pf.HasAllocated(offset, size)
if err != nil {
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_ = pf.Close()
return false, err
}
if !ok {
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_ = pf.Close()
return false, nil
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}
f, err := pf.Reader(offset.Padded(), size.Padded())
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if err != nil {
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_ = pf.Close()
return false, xerrors.Errorf("getting partial file reader: %w", err)
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}
upr, err := fr32.NewUnpadReader(f, size.Padded())
if err != nil {
return false, xerrors.Errorf("creating unpadded reader: %w", err)
}
if _, err := io.CopyN(writer, upr, int64(size)); err != nil {
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_ = pf.Close()
return false, xerrors.Errorf("reading unsealed file: %w", err)
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}
if err := pf.Close(); err != nil {
return false, xerrors.Errorf("closing partial file: %w", err)
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}
return true, nil
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}
func (sb *Sealer) RegenerateSectorKey(ctx context.Context, sector storiface.SectorRef, ticket abi.SealRandomness, pieces []abi.PieceInfo) error {
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed|storiface.FTCache, storiface.FTSealed, storiface.PathSealing)
if err != nil {
return xerrors.Errorf("acquiring sector paths: %w", err)
}
defer done()
e, err := os.OpenFile(paths.Sealed, os.O_RDWR|os.O_CREATE, 0644) // nolint:gosec
if err != nil {
return xerrors.Errorf("ensuring sealed file exists: %w", err)
}
if err := e.Close(); err != nil {
return err
}
var sum abi.UnpaddedPieceSize
for _, piece := range pieces {
sum += piece.Size.Unpadded()
}
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return err
}
ussize := abi.PaddedPieceSize(ssize).Unpadded()
if sum != ussize {
return xerrors.Errorf("aggregated piece sizes don't match sector size: %d != %d (%d)", sum, ussize, int64(ussize-sum))
}
// TODO: context cancellation respect
_, err = ffi.SealPreCommitPhase1(
sector.ProofType,
paths.Cache,
paths.Unsealed,
paths.Sealed,
sector.ID.Number,
sector.ID.Miner,
ticket,
pieces,
)
if err != nil {
return xerrors.Errorf("presealing sector %d (%s): %w", sector.ID.Number, paths.Unsealed, err)
}
return nil
}
func (sb *Sealer) SealPreCommit1(ctx context.Context, sector storiface.SectorRef, ticket abi.SealRandomness, pieces []abi.PieceInfo) (out storiface.PreCommit1Out, err error) {
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed, storiface.FTSealed|storiface.FTCache, storiface.PathSealing)
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if err != nil {
return nil, xerrors.Errorf("acquiring sector paths: %w", err)
}
defer done()
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e, err := os.OpenFile(paths.Sealed, os.O_RDWR|os.O_CREATE, 0644) // nolint:gosec
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if err != nil {
return nil, xerrors.Errorf("ensuring sealed file exists: %w", err)
}
if err := e.Close(); err != nil {
return nil, err
}
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if err := os.Mkdir(paths.Cache, 0755); err != nil { // nolint
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if os.IsExist(err) {
log.Warnf("existing cache in %s; removing", paths.Cache)
if err := os.RemoveAll(paths.Cache); err != nil {
return nil, xerrors.Errorf("remove existing sector cache from %s (sector %d): %w", paths.Cache, sector, err)
}
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if err := os.Mkdir(paths.Cache, 0755); err != nil { // nolint:gosec
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return nil, xerrors.Errorf("mkdir cache path after cleanup: %w", err)
}
} else {
return nil, err
}
}
var sum abi.UnpaddedPieceSize
for _, piece := range pieces {
sum += piece.Size.Unpadded()
}
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return nil, err
}
ussize := abi.PaddedPieceSize(ssize).Unpadded()
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if sum != ussize {
return nil, xerrors.Errorf("aggregated piece sizes don't match sector size: %d != %d (%d)", sum, ussize, int64(ussize-sum))
}
// TODO: context cancellation respect
p1o, err := ffi.SealPreCommitPhase1(
sector.ProofType,
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paths.Cache,
paths.Unsealed,
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paths.Sealed,
sector.ID.Number,
sector.ID.Miner,
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ticket,
pieces,
)
if err != nil {
return nil, xerrors.Errorf("presealing sector %d (%s): %w", sector.ID.Number, paths.Unsealed, err)
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}
p1odec := map[string]interface{}{}
if err := json.Unmarshal(p1o, &p1odec); err != nil {
return nil, xerrors.Errorf("unmarshaling pc1 output: %w", err)
}
p1odec["_lotus_SealRandomness"] = ticket
return json.Marshal(&p1odec)
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}
var PC2CheckRounds = 3
func (sb *Sealer) SealPreCommit2(ctx context.Context, sector storiface.SectorRef, phase1Out storiface.PreCommit1Out) (storiface.SectorCids, error) {
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTSealed|storiface.FTCache, 0, storiface.PathSealing)
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if err != nil {
return storiface.SectorCids{}, xerrors.Errorf("acquiring sector paths: %w", err)
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}
defer done()
sealedCID, unsealedCID, err := ffi.SealPreCommitPhase2(phase1Out, paths.Cache, paths.Sealed)
if err != nil {
return storiface.SectorCids{}, xerrors.Errorf("presealing sector %d (%s): %w", sector.ID.Number, paths.Unsealed, err)
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}
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return storiface.SectorCids{}, xerrors.Errorf("get ssize: %w", err)
}
p1odec := map[string]interface{}{}
if err := json.Unmarshal(phase1Out, &p1odec); err != nil {
return storiface.SectorCids{}, xerrors.Errorf("unmarshaling pc1 output: %w", err)
}
var ticket abi.SealRandomness
ti, found := p1odec["_lotus_SealRandomness"]
if found {
ticket, err = base64.StdEncoding.DecodeString(ti.(string))
if err != nil {
return storiface.SectorCids{}, xerrors.Errorf("decoding ticket: %w", err)
}
for i := 0; i < PC2CheckRounds; i++ {
var sd [32]byte
_, _ = rand.Read(sd[:])
_, err := ffi.SealCommitPhase1(
sector.ProofType,
sealedCID,
unsealedCID,
paths.Cache,
paths.Sealed,
sector.ID.Number,
sector.ID.Miner,
ticket,
sd[:],
[]abi.PieceInfo{{Size: abi.PaddedPieceSize(ssize), PieceCID: unsealedCID}},
)
if err != nil {
log.Warn("checking PreCommit failed: ", err)
log.Warnf("num:%d tkt:%v seed:%v sealedCID:%v, unsealedCID:%v", sector.ID.Number, ticket, sd[:], sealedCID, unsealedCID)
return storiface.SectorCids{}, xerrors.Errorf("checking PreCommit failed: %w", err)
}
}
}
return storiface.SectorCids{
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Unsealed: unsealedCID,
Sealed: sealedCID,
}, nil
}
func (sb *Sealer) SealCommit1(ctx context.Context, sector storiface.SectorRef, ticket abi.SealRandomness, seed abi.InteractiveSealRandomness, pieces []abi.PieceInfo, cids storiface.SectorCids) (storiface.Commit1Out, error) {
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTSealed|storiface.FTCache, 0, storiface.PathSealing)
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if err != nil {
return nil, xerrors.Errorf("acquire sector paths: %w", err)
}
defer done()
output, err := ffi.SealCommitPhase1(
sector.ProofType,
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cids.Sealed,
cids.Unsealed,
paths.Cache,
paths.Sealed,
sector.ID.Number,
sector.ID.Miner,
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ticket,
seed,
pieces,
)
if err != nil {
log.Warn("StandaloneSealCommit error: ", err)
log.Warnf("num:%d tkt:%v seed:%v, pi:%v sealedCID:%v, unsealedCID:%v", sector.ID.Number, ticket, seed, pieces, cids.Sealed, cids.Unsealed)
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return nil, xerrors.Errorf("StandaloneSealCommit: %w", err)
}
return output, nil
}
func (sb *Sealer) SealCommit2(ctx context.Context, sector storiface.SectorRef, phase1Out storiface.Commit1Out) (storiface.Proof, error) {
return ffi.SealCommitPhase2(phase1Out, sector.ID.Number, sector.ID.Miner)
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}
func (sb *Sealer) ReplicaUpdate(ctx context.Context, sector storiface.SectorRef, pieces []abi.PieceInfo) (storiface.ReplicaUpdateOut, error) {
empty := storiface.ReplicaUpdateOut{}
paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed|storiface.FTSealed|storiface.FTCache, storiface.FTUpdate|storiface.FTUpdateCache, storiface.PathSealing)
if err != nil {
return empty, xerrors.Errorf("failed to acquire sector paths: %w", err)
}
defer done()
updateProofType := abi.SealProofInfos[sector.ProofType].UpdateProof
s, err := os.Stat(paths.Sealed)
if err != nil {
return empty, err
}
sealedSize := s.Size()
u, err := os.OpenFile(paths.Update, os.O_RDWR|os.O_CREATE, 0644) // nolint:gosec
if err != nil {
return empty, xerrors.Errorf("ensuring updated replica file exists: %w", err)
}
if err := fallocate.Fallocate(u, 0, sealedSize); err != nil {
return empty, xerrors.Errorf("allocating space for replica update file: %w", err)
}
if err := u.Close(); err != nil {
return empty, err
}
if err := os.Mkdir(paths.UpdateCache, 0755); err != nil { // nolint
if os.IsExist(err) {
log.Warnf("existing cache in %s; removing", paths.UpdateCache)
if err := os.RemoveAll(paths.UpdateCache); err != nil {
return empty, xerrors.Errorf("remove existing sector cache from %s (sector %d): %w", paths.UpdateCache, sector, err)
}
if err := os.Mkdir(paths.UpdateCache, 0755); err != nil { // nolint:gosec
return empty, xerrors.Errorf("mkdir cache path after cleanup: %w", err)
}
} else {
return empty, err
}
}
sealed, unsealed, err := ffi.SectorUpdate.EncodeInto(updateProofType, paths.Update, paths.UpdateCache, paths.Sealed, paths.Cache, paths.Unsealed, pieces)
if err != nil {
return empty, xerrors.Errorf("failed to update replica %d with new deal data: %w", sector.ID.Number, err)
}
return storiface.ReplicaUpdateOut{NewSealed: sealed, NewUnsealed: unsealed}, nil
}
func (sb *Sealer) ProveReplicaUpdate1(ctx context.Context, sector storiface.SectorRef, sectorKey, newSealed, newUnsealed cid.Cid) (storiface.ReplicaVanillaProofs, error) {
paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTSealed|storiface.FTCache|storiface.FTUpdate|storiface.FTUpdateCache, storiface.FTNone, storiface.PathSealing)
if err != nil {
return nil, xerrors.Errorf("failed to acquire sector paths: %w", err)
}
defer done()
updateProofType := abi.SealProofInfos[sector.ProofType].UpdateProof
vanillaProofs, err := ffi.SectorUpdate.GenerateUpdateVanillaProofs(updateProofType, sectorKey, newSealed, newUnsealed, paths.Update, paths.UpdateCache, paths.Sealed, paths.Cache)
if err != nil {
return nil, xerrors.Errorf("failed to generate proof of replica update for sector %d: %w", sector.ID.Number, err)
}
return vanillaProofs, nil
}
func (sb *Sealer) ProveReplicaUpdate2(ctx context.Context, sector storiface.SectorRef, sectorKey, newSealed, newUnsealed cid.Cid, vanillaProofs storiface.ReplicaVanillaProofs) (storiface.ReplicaUpdateProof, error) {
updateProofType := abi.SealProofInfos[sector.ProofType].UpdateProof
return ffi.SectorUpdate.GenerateUpdateProofWithVanilla(updateProofType, sectorKey, newSealed, newUnsealed, vanillaProofs)
}
func (sb *Sealer) GenerateSectorKeyFromData(ctx context.Context, sector storiface.SectorRef, commD cid.Cid) error {
paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed|storiface.FTCache|storiface.FTUpdate|storiface.FTUpdateCache, storiface.FTSealed, storiface.PathSealing)
defer done()
if err != nil {
return xerrors.Errorf("failed to acquire sector paths: %w", err)
}
s, err := os.Stat(paths.Update)
if err != nil {
return xerrors.Errorf("measuring update file size: %w", err)
}
sealedSize := s.Size()
e, err := os.OpenFile(paths.Sealed, os.O_RDWR|os.O_CREATE, 0644) // nolint:gosec
if err != nil {
return xerrors.Errorf("ensuring sector key file exists: %w", err)
}
if err := fallocate.Fallocate(e, 0, sealedSize); err != nil {
return xerrors.Errorf("allocating space for sector key file: %w", err)
}
if err := e.Close(); err != nil {
return err
}
updateProofType := abi.SealProofInfos[sector.ProofType].UpdateProof
return ffi.SectorUpdate.RemoveData(updateProofType, paths.Sealed, paths.Cache, paths.Update, paths.UpdateCache, paths.Unsealed, commD)
}
func (sb *Sealer) ReleaseSealed(ctx context.Context, sector storiface.SectorRef) error {
return xerrors.Errorf("not supported at this layer")
}
func (sb *Sealer) freeUnsealed(ctx context.Context, sector storiface.SectorRef, keepUnsealed []storiface.Range) error {
ssize, err := sector.ProofType.SectorSize()
if err != nil {
return err
}
maxPieceSize := abi.PaddedPieceSize(ssize)
if len(keepUnsealed) > 0 {
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sr := partialfile.PieceRun(0, maxPieceSize)
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for _, s := range keepUnsealed {
si := &rlepluslazy.RunSliceIterator{}
if s.Offset != 0 {
si.Runs = append(si.Runs, rlepluslazy.Run{Val: false, Len: uint64(s.Offset)})
}
si.Runs = append(si.Runs, rlepluslazy.Run{Val: true, Len: uint64(s.Size)})
var err error
sr, err = rlepluslazy.Subtract(sr, si)
if err != nil {
return err
}
}
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUnsealed, 0, storiface.PathStorage)
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if err != nil {
return xerrors.Errorf("acquiring sector cache path: %w", err)
}
defer done()
pf, err := partialfile.OpenPartialFile(maxPieceSize, paths.Unsealed)
if err == nil {
var at uint64
for sr.HasNext() {
r, err := sr.NextRun()
if err != nil {
_ = pf.Close()
return err
}
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offset := at
at += r.Len
if !r.Val {
continue
}
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err = pf.Free(storiface.PaddedByteIndex(abi.UnpaddedPieceSize(offset).Padded()), abi.UnpaddedPieceSize(r.Len).Padded())
if err != nil {
_ = pf.Close()
return xerrors.Errorf("free partial file range: %w", err)
}
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}
if err := pf.Close(); err != nil {
return err
}
} else {
if !xerrors.Is(err, os.ErrNotExist) {
return xerrors.Errorf("opening partial file: %w", err)
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}
}
}
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return nil
}
func (sb *Sealer) FinalizeSector(ctx context.Context, sector storiface.SectorRef, keepUnsealed []storiface.Range) error {
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ssize, err := sector.ProofType.SectorSize()
if err != nil {
return err
}
if err := sb.freeUnsealed(ctx, sector, keepUnsealed); err != nil {
return err
}
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paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTCache, 0, storiface.PathStorage)
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if err != nil {
return xerrors.Errorf("acquiring sector cache path: %w", err)
}
defer done()
return ffi.ClearCache(uint64(ssize), paths.Cache)
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}
func (sb *Sealer) FinalizeReplicaUpdate(ctx context.Context, sector storiface.SectorRef, keepUnsealed []storiface.Range) error {
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ssize, err := sector.ProofType.SectorSize()
if err != nil {
return err
}
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if err := sb.freeUnsealed(ctx, sector, keepUnsealed); err != nil {
return err
}
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{
paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTCache, 0, storiface.PathStorage)
if err != nil {
return xerrors.Errorf("acquiring sector cache path: %w", err)
}
defer done()
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if err := ffi.ClearCache(uint64(ssize), paths.Cache); err != nil {
return xerrors.Errorf("clear cache: %w", err)
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}
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}
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{
paths, done, err := sb.sectors.AcquireSector(ctx, sector, storiface.FTUpdateCache, 0, storiface.PathStorage)
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if err != nil {
return xerrors.Errorf("acquiring sector cache path: %w", err)
}
defer done()
if err := ffi.ClearCache(uint64(ssize), paths.UpdateCache); err != nil {
return xerrors.Errorf("clear cache: %w", err)
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}
}
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return nil
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}
func (sb *Sealer) ReleaseUnsealed(ctx context.Context, sector storiface.SectorRef, safeToFree []storiface.Range) error {
// This call is meant to mark storage as 'freeable'. Given that unsealing is
// very expensive, we don't remove data as soon as we can - instead we only
// do that when we don't have free space for data that really needs it
// This function should not be called at this layer, everything should be
// handled in localworker
return xerrors.Errorf("not supported at this layer")
}
func (sb *Sealer) ReleaseReplicaUpgrade(ctx context.Context, sector storiface.SectorRef) error {
return xerrors.Errorf("not supported at this layer")
}
func (sb *Sealer) ReleaseSectorKey(ctx context.Context, sector storiface.SectorRef) error {
return xerrors.Errorf("not supported at this layer")
}
func (sb *Sealer) Remove(ctx context.Context, sector storiface.SectorRef) error {
return xerrors.Errorf("not supported at this layer") // happens in localworker
}
2020-07-12 01:30:16 +00:00
func GetRequiredPadding(oldLength abi.PaddedPieceSize, newPieceLength abi.PaddedPieceSize) ([]abi.PaddedPieceSize, abi.PaddedPieceSize) {
2020-03-26 02:50:56 +00:00
2020-07-12 01:30:16 +00:00
padPieces := make([]abi.PaddedPieceSize, 0)
2020-07-12 01:30:16 +00:00
toFill := uint64(-oldLength % newPieceLength)
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2020-07-12 01:30:16 +00:00
n := bits.OnesCount64(toFill)
var sum abi.PaddedPieceSize
for i := 0; i < n; i++ {
next := bits.TrailingZeros64(toFill)
psize := uint64(1) << uint(next)
toFill ^= psize
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padded := abi.PaddedPieceSize(psize)
padPieces = append(padPieces, padded)
sum += padded
}
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return padPieces, sum
}
func GenerateUnsealedCID(proofType abi.RegisteredSealProof, pieces []abi.PieceInfo) (cid.Cid, error) {
ssize, err := proofType.SectorSize()
if err != nil {
return cid.Undef, err
}
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pssize := abi.PaddedPieceSize(ssize)
allPieces := make([]abi.PieceInfo, 0, len(pieces))
if len(pieces) == 0 {
allPieces = append(allPieces, abi.PieceInfo{
Size: pssize,
PieceCID: zerocomm.ZeroPieceCommitment(pssize.Unpadded()),
})
} else {
var sum abi.PaddedPieceSize
padTo := func(pads []abi.PaddedPieceSize) {
for _, p := range pads {
allPieces = append(allPieces, abi.PieceInfo{
Size: p,
PieceCID: zerocomm.ZeroPieceCommitment(p.Unpadded()),
})
sum += p
}
}
for _, p := range pieces {
ps, _ := GetRequiredPadding(sum, p.Size)
padTo(ps)
allPieces = append(allPieces, p)
sum += p.Size
}
ps, _ := GetRequiredPadding(sum, pssize)
padTo(ps)
}
return ffi.GenerateUnsealedCID(proofType, allPieces)
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}
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func (sb *Sealer) GenerateWinningPoStWithVanilla(ctx context.Context, proofType abi.RegisteredPoStProof, minerID abi.ActorID, randomness abi.PoStRandomness, vanillas [][]byte) ([]proof.PoStProof, error) {
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return ffi.GenerateWinningPoStWithVanilla(proofType, minerID, randomness, vanillas)
}
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func (sb *Sealer) GenerateWindowPoStWithVanilla(ctx context.Context, proofType abi.RegisteredPoStProof, minerID abi.ActorID, randomness abi.PoStRandomness, proofs [][]byte, partitionIdx int) (proof.PoStProof, error) {
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pp, err := ffi.GenerateSinglePartitionWindowPoStWithVanilla(proofType, minerID, randomness, proofs, uint(partitionIdx))
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if err != nil {
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return proof.PoStProof{}, err
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}
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if pp == nil {
// should be impossible, but just in case do not panic
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return proof.PoStProof{}, xerrors.New("postproof was nil")
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}
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return proof.PoStProof{
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PoStProof: pp.PoStProof,
ProofBytes: pp.ProofBytes,
}, nil
}