package ffiwrapper import ( "golang.org/x/xerrors" rlepluslazy "github.com/filecoin-project/go-bitfield/rle" "github.com/filecoin-project/go-state-types/abi" "github.com/filecoin-project/lotus/storage/sealer/partialfile" "github.com/filecoin-project/lotus/storage/sealer/storiface" ) // merge gaps between ranges which are close to each other // // TODO: more benchmarking to come up with more optimal number const mergeGaps = 32 << 20 // TODO const expandRuns = 16 << 20 // unseal more than requested for future requests func computeUnsealRanges(unsealed rlepluslazy.RunIterator, offset storiface.UnpaddedByteIndex, size abi.UnpaddedPieceSize) (rlepluslazy.RunIterator, error) { todo := partialfile.PieceRun(offset.Padded(), size.Padded()) todo, err := rlepluslazy.Subtract(todo, unsealed) if err != nil { return nil, xerrors.Errorf("compute todo-unsealed: %w", err) } return rlepluslazy.JoinClose(todo, mergeGaps) }