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mount: support extended attributes

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This commit is contained in:
Chris Lu
2019-12-15 21:07:01 -08:00
parent ad9d5ff5d0
commit 33b4b1868b
4 changed files with 320 additions and 104 deletions
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149
weed/filesys/dir.go
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@@ -16,7 +16,7 @@ import (
type Dir struct {
Path string
wfs *WFS
attributes *filer_pb.FuseAttributes
entry *filer_pb.Entry
}
var _ = fs.Node(&Dir{})
@@ -27,6 +27,10 @@ var _ = fs.HandleReadDirAller(&Dir{})
var _ = fs.NodeRemover(&Dir{})
var _ = fs.NodeRenamer(&Dir{})
var _ = fs.NodeSetattrer(&Dir{})
var _ = fs.NodeGetxattrer(&Dir{})
var _ = fs.NodeSetxattrer(&Dir{})
var _ = fs.NodeRemovexattrer(&Dir{})
var _ = fs.NodeListxattrer(&Dir{})
func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error {
@@ -40,48 +44,30 @@ func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error {
return nil
}
item := dir.wfs.listDirectoryEntriesCache.Get(dir.Path)
var entry *filer_pb.Entry
if item != nil && !item.Expired() {
entry = item.Value().(*filer_pb.Entry)
}
if entry != nil {
entry := item.Value().(*filer_pb.Entry)
attr.Mtime = time.Unix(entry.Attributes.Mtime, 0)
attr.Ctime = time.Unix(entry.Attributes.Crtime, 0)
attr.Mode = os.FileMode(entry.Attributes.FileMode)
attr.Gid = entry.Attributes.Gid
attr.Uid = entry.Attributes.Uid
return nil
}
glog.V(3).Infof("dir Attr cache miss %s", dir.Path)
entry, err := filer2.GetEntry(ctx, dir.wfs, dir.Path)
if err != nil {
glog.V(2).Infof("read dir %s attr: %v, error: %v", dir.Path, dir.attributes, err)
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
if entry == nil {
return fuse.ENOENT
}
dir.attributes = entry.Attributes
glog.V(2).Infof("dir %s: %v perm: %v", dir.Path, dir.attributes, os.FileMode(dir.attributes.FileMode))
attr.Mode = os.FileMode(dir.attributes.FileMode) | os.ModeDir
attr.Mtime = time.Unix(dir.attributes.Mtime, 0)
attr.Ctime = time.Unix(dir.attributes.Crtime, 0)
attr.Gid = dir.attributes.Gid
attr.Uid = dir.attributes.Uid
attr.Mode = os.FileMode(dir.entry.Attributes.FileMode) | os.ModeDir
attr.Mtime = time.Unix(dir.entry.Attributes.Mtime, 0)
attr.Ctime = time.Unix(dir.entry.Attributes.Crtime, 0)
attr.Gid = dir.entry.Attributes.Gid
attr.Uid = dir.entry.Attributes.Uid
return nil
}
func (dir *Dir) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
glog.V(4).Infof("dir Getxattr %s", dir.Path)
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
return getxattr(dir.entry, req, resp)
}
func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) {
attr.Uid = dir.wfs.option.MountUid
attr.Gid = dir.wfs.option.MountGid
@@ -207,7 +193,7 @@ func (dir *Dir) Lookup(ctx context.Context, req *fuse.LookupRequest, resp *fuse.
if entry != nil {
if entry.IsDirectory {
node = &Dir{Path: path.Join(dir.Path, req.Name), wfs: dir.wfs, attributes: entry.Attributes}
node = &Dir{Path: path.Join(dir.Path, req.Name), wfs: dir.wfs, entry: entry}
} else {
node = dir.newFile(req.Name, entry)
}
@@ -316,48 +302,111 @@ func (dir *Dir) removeFolder(ctx context.Context, req *fuse.RemoveRequest) error
func (dir *Dir) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
if dir.attributes == nil {
return nil
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
glog.V(3).Infof("%v dir setattr %+v, fh=%d", dir.Path, req, req.Handle)
if req.Valid.Mode() {
dir.attributes.FileMode = uint32(req.Mode)
dir.entry.Attributes.FileMode = uint32(req.Mode)
}
if req.Valid.Uid() {
dir.attributes.Uid = req.Uid
dir.entry.Attributes.Uid = req.Uid
}
if req.Valid.Gid() {
dir.attributes.Gid = req.Gid
dir.entry.Attributes.Gid = req.Gid
}
if req.Valid.Mtime() {
dir.attributes.Mtime = req.Mtime.Unix()
dir.entry.Attributes.Mtime = req.Mtime.Unix()
}
dir.wfs.listDirectoryEntriesCache.Delete(dir.Path)
return dir.saveEntry(ctx)
}
func (dir *Dir) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error {
glog.V(4).Infof("dir Setxattr %s: %s", dir.Path, req.Name)
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
if err := setxattr(dir.entry, req); err != nil {
return err
}
return dir.saveEntry(ctx)
}
func (dir *Dir) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error {
glog.V(4).Infof("dir Removexattr %s: %s", dir.Path, req.Name)
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
if err := removexattr(dir.entry, req); err != nil {
return err
}
return dir.saveEntry(ctx)
}
func (dir *Dir) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error {
glog.V(4).Infof("dir Listxattr %s: %s", dir.Path)
if err := dir.maybeLoadEntry(ctx); err != nil {
return err
}
if err := listxattr(dir.entry, req, resp); err != nil {
return err
}
return dir.saveEntry(ctx)
}
func (dir *Dir) maybeLoadEntry(ctx context.Context) error {
if dir.entry == nil {
parentDirPath, name := filer2.FullPath(dir.Path).DirAndName()
entry, err := dir.wfs.maybeLoadEntry(ctx, parentDirPath, name)
dir.entry = entry
if err != nil {
return err
}
}
return nil
}
func (dir *Dir) saveEntry(ctx context.Context) error {
parentDir, name := filer2.FullPath(dir.Path).DirAndName()
return dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.UpdateEntryRequest{
Directory: parentDir,
Entry: &filer_pb.Entry{
Name: name,
Attributes: dir.attributes,
},
Entry: dir.entry,
}
glog.V(1).Infof("set attr directory entry: %v", request)
glog.V(1).Infof("save dir entry: %v", request)
_, err := client.UpdateEntry(ctx, request)
if err != nil {
glog.V(0).Infof("UpdateEntry %s: %v", dir.Path, err)
glog.V(0).Infof("UpdateEntry dir %s/%s: %v", parentDir, name, err)
return fuse.EIO
}
return nil
})
}