lotus/extern/sector-storage/selector_existing.go
2020-08-10 17:25:46 +02:00

68 lines
1.7 KiB
Go

package sectorstorage
import (
"context"
"golang.org/x/xerrors"
"github.com/filecoin-project/specs-actors/actors/abi"
"github.com/filecoin-project/sector-storage/sealtasks"
"github.com/filecoin-project/sector-storage/stores"
)
type existingSelector struct {
index stores.SectorIndex
sector abi.SectorID
alloc stores.SectorFileType
allowFetch bool
}
func newExistingSelector(index stores.SectorIndex, sector abi.SectorID, alloc stores.SectorFileType, allowFetch bool) *existingSelector {
return &existingSelector{
index: index,
sector: sector,
alloc: alloc,
allowFetch: allowFetch,
}
}
func (s *existingSelector) Ok(ctx context.Context, task sealtasks.TaskType, spt abi.RegisteredSealProof, whnd *workerHandle) (bool, error) {
tasks, err := whnd.w.TaskTypes(ctx)
if err != nil {
return false, xerrors.Errorf("getting supported worker task types: %w", err)
}
if _, supported := tasks[task]; !supported {
return false, nil
}
paths, err := whnd.w.Paths(ctx)
if err != nil {
return false, xerrors.Errorf("getting worker paths: %w", err)
}
have := map[stores.ID]struct{}{}
for _, path := range paths {
have[path.ID] = struct{}{}
}
best, err := s.index.StorageFindSector(ctx, s.sector, s.alloc, s.allowFetch)
if err != nil {
return false, xerrors.Errorf("finding best storage: %w", err)
}
for _, info := range best {
if _, ok := have[info.ID]; ok {
return true, nil
}
}
return false, nil
}
func (s *existingSelector) Cmp(ctx context.Context, task sealtasks.TaskType, a, b *workerHandle) (bool, error) {
return a.active.utilization(a.info.Resources) < b.active.utilization(b.info.Resources), nil
}
var _ WorkerSelector = &existingSelector{}