binctr/vendor/github.com/containerd/continuity/fs/hardlink.go
Jess Frazelle 60f032f6f5 Revert "update to use containerd seccomp package"
This reverts commit 4f8e065faf055d3f0463a92622297ca3afac07f4.
2018-03-22 09:15:36 -04:00

27 lines
754 B
Go

package fs
import "os"
// GetLinkInfo returns an identifier representing the node a hardlink is pointing
// to. If the file is not hard linked then 0 will be returned.
func GetLinkInfo(fi os.FileInfo) (uint64, bool) {
return getLinkInfo(fi)
}
// getLinkSource returns a path for the given name and
// file info to its link source in the provided inode
// map. If the given file name is not in the map and
// has other links, it is added to the inode map
// to be a source for other link locations.
func getLinkSource(name string, fi os.FileInfo, inodes map[uint64]string) (string, error) {
inode, isHardlink := getLinkInfo(fi)
if !isHardlink {
return "", nil
}
path, ok := inodes[inode]
if !ok {
inodes[inode] = name
}
return path, nil
}