lotus/stores/interface.go

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package stores
import (
"context"
"syscall"
"golang.org/x/xerrors"
"github.com/filecoin-project/specs-actors/actors/abi"
)
type PathType bool
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const (
PathStorage = false
PathSealing = true
)
type AcquireMode string
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const (
AcquireMove = "move"
AcquireCopy = "copy"
)
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type Store interface {
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AcquireSector(ctx context.Context, s abi.SectorID, spt abi.RegisteredSealProof, existing SectorFileType, allocate SectorFileType, sealing PathType, op AcquireMode) (paths SectorPaths, stores SectorPaths, err error)
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Remove(ctx context.Context, s abi.SectorID, types SectorFileType, force bool) error
// like remove, but doesn't remove the primary sector copy, nor the last
// non-primary copy if there no primary copies
RemoveCopies(ctx context.Context, s abi.SectorID, types SectorFileType) error
// move sectors into storage
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MoveStorage(ctx context.Context, s abi.SectorID, spt abi.RegisteredSealProof, types SectorFileType) error
FsStat(ctx context.Context, id ID) (FsStat, error)
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}
func Stat(path string) (FsStat, error) {
var stat syscall.Statfs_t
if err := syscall.Statfs(path, &stat); err != nil {
return FsStat{}, xerrors.Errorf("statfs: %w", err)
}
return FsStat{
Capacity: stat.Blocks * uint64(stat.Bsize),
Available: stat.Bavail * uint64(stat.Bsize),
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}, nil
}
type FsStat struct {
Capacity uint64
Available uint64 // Available to use for sector storage
Used uint64
}