chrislu
3 years ago
1 changed files with 77 additions and 0 deletions
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package mount |
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import ( |
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"context" |
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"fmt" |
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"github.com/chrislusf/seaweedfs/weed/filer" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb" |
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"github.com/hanwen/go-fuse/v2/fuse" |
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"os" |
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"time" |
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) |
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func (wfs *WFS) Symlink(cancel <-chan struct{}, header *fuse.InHeader, target string, name string, out *fuse.EntryOut) (code fuse.Status) { |
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if s := checkName(name); s != fuse.OK { |
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return s |
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} |
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dirPath := wfs.inodeToPath.GetPath(header.NodeId) |
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entryFullPath := dirPath.Child(name) |
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request := &filer_pb.CreateEntryRequest{ |
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Directory: string(dirPath), |
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Entry: &filer_pb.Entry{ |
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Name: name, |
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IsDirectory: false, |
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Attributes: &filer_pb.FuseAttributes{ |
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Mtime: time.Now().Unix(), |
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Crtime: time.Now().Unix(), |
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FileMode: uint32((os.FileMode(0777) | os.ModeSymlink) &^ wfs.option.Umask), |
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Uid: header.Uid, |
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Gid: header.Gid, |
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SymlinkTarget: target, |
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}, |
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}, |
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Signatures: []int32{wfs.signature}, |
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} |
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err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error { |
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wfs.mapPbIdFromLocalToFiler(request.Entry) |
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defer wfs.mapPbIdFromFilerToLocal(request.Entry) |
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if err := filer_pb.CreateEntry(client, request); err != nil { |
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return fmt.Errorf("symlink %s: %v", entryFullPath, err) |
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} |
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wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry)) |
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return nil |
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}) |
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if err != nil { |
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glog.V(0).Infof("Symlink %s => %s: %v", entryFullPath, target, err) |
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return fuse.EIO |
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} |
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inode := wfs.inodeToPath.GetInode(entryFullPath) |
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wfs.outputPbEntry(out, inode, request.Entry) |
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return fuse.OK |
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} |
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func (wfs *WFS) Readlink(cancel <-chan struct{}, header *fuse.InHeader) (out []byte, code fuse.Status) { |
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entryFullPath := wfs.inodeToPath.GetPath(header.NodeId) |
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entry, status := wfs.maybeLoadEntry(entryFullPath) |
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if status != fuse.OK { |
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return nil, status |
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} |
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if os.FileMode(entry.Attributes.FileMode)&os.ModeSymlink == 0 { |
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return nil, fuse.EINVAL |
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} |
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return []byte(entry.Attributes.SymlinkTarget), fuse.OK |
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} |
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