-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
unseal_ranges.go
28 lines (21 loc) · 937 Bytes
/
unseal_ranges.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
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)
}