lotus/roprov.go
2020-06-03 22:00:43 +02:00

36 lines
971 B
Go

package sectorstorage
import (
"context"
"golang.org/x/xerrors"
"github.com/filecoin-project/specs-actors/actors/abi"
"github.com/filecoin-project/sector-storage/stores"
)
type readonlyProvider struct {
index stores.SectorIndex
stor *stores.Local
spt abi.RegisteredProof
}
func (l *readonlyProvider) AcquireSector(ctx context.Context, id abi.SectorID, existing stores.SectorFileType, allocate stores.SectorFileType, sealing bool) (stores.SectorPaths, func(), error) {
if allocate != stores.FTNone {
return stores.SectorPaths{}, nil, xerrors.New("read-only storage")
}
ctx, cancel := context.WithCancel(ctx)
if err := l.index.StorageLock(ctx, id, existing, stores.FTNone); err != nil {
return stores.SectorPaths{}, nil, xerrors.Errorf("acquiring sector lock: %w", err)
}
p, _, done, err := l.stor.AcquireSector(ctx, id, l.spt, existing, allocate, stores.PathType(sealing), stores.AcquireMove)
return p, func() {
cancel()
done()
}, err
}