lotus/extern/sector-storage/fsutil/statfs_unix.go

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package fsutil
import (
"syscall"
"golang.org/x/xerrors"
)
func Statfs(path string) (FsStat, error) {
var stat syscall.Statfs_t
if err := syscall.Statfs(path, &stat); err != nil {
return FsStat{}, xerrors.Errorf("statfs: %w", err)
}
// force int64 to handle platform specific differences
//nolint:unconvert
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return FsStat{
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Capacity: int64(stat.Blocks) * int64(stat.Bsize),
Available: int64(stat.Bavail) * int64(stat.Bsize),
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}, nil
}