diff options
| author | Chris Lu <chris.lu@gmail.com> | 2020-09-27 22:38:30 -0700 |
|---|---|---|
| committer | Chris Lu <chris.lu@gmail.com> | 2020-09-27 22:38:30 -0700 |
| commit | 474e2b6ac3896225fe17aa13f1ec7ff8a304717c (patch) | |
| tree | 512ba4214253cf7579822d1e87633fa589450648 | |
| parent | c49e2bb9a30ef3ea69f7b246e928c2c6c1373e52 (diff) | |
| download | seaweedfs-474e2b6ac3896225fe17aa13f1ec7ff8a304717c.tar.xz seaweedfs-474e2b6ac3896225fe17aa13f1ec7ff8a304717c.zip | |
add a hard link marker to 16byte + maker, for future extensions
| -rw-r--r-- | weed/filesys/dir_link.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/weed/filesys/dir_link.go b/weed/filesys/dir_link.go index 368ded442..f6bc41b56 100644 --- a/weed/filesys/dir_link.go +++ b/weed/filesys/dir_link.go @@ -18,6 +18,10 @@ var _ = fs.NodeLinker(&Dir{}) var _ = fs.NodeSymlinker(&Dir{}) var _ = fs.NodeReadlinker(&File{}) +const ( + HARD_LINK_MARKER = '\x01' +) + func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (fs.Node, error) { oldFile, ok := old.(*File) @@ -33,7 +37,7 @@ func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (f // update old file to hardlink mode if len(oldFile.entry.HardLinkId) == 0 { - oldFile.entry.HardLinkId = util.RandomBytes(16) + oldFile.entry.HardLinkId = append(util.RandomBytes(16), HARD_LINK_MARKER) oldFile.entry.HardLinkCounter = 1 } oldFile.entry.HardLinkCounter++ |