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ensure the same Node is returned

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This commit is contained in:
Chris Lu 2018-05-05 23:50:34 -07:00
parent b857cf9d9b
commit be58993f47
1 changed files with 29 additions and 5 deletions
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30
weed/filesys/dir.go
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@ -9,10 +9,13 @@ import (
"bazil.org/fuse/fs"
"bazil.org/fuse"
"github.com/chrislusf/seaweedfs/weed/filer"
"sync"
)
type Dir struct {
Path string
NodeMap map[string]fs.Node
NodeMapLock sync.Mutex
wfs *WFS
}
@ -21,16 +24,30 @@ func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
return nil
}
func (dir *Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
func (dir *Dir) Lookup(ctx context.Context, name string) (node fs.Node, err error) {
dir.NodeMapLock.Lock()
defer dir.NodeMapLock.Unlock()
if dir.NodeMap == nil {
dir.NodeMap = make(map[string]fs.Node)
}
if node, ok := dir.NodeMap[name]; ok {
return node, nil
}
if entry, err := filer.LookupDirectoryEntry(dir.wfs.filer, dir.Path, name); err == nil {
if !entry.Found {
return nil, fuse.ENOENT
}
if entry.FileId != "" {
return &File{FileId: filer.FileId(entry.FileId), Name: name, wfs: dir.wfs}, nil
node = &File{FileId: filer.FileId(entry.FileId), Name: name, wfs: dir.wfs}
} else {
return &Dir{Path: path.Join(dir.Path, name), wfs: dir.wfs}, nil
node = &Dir{Path: path.Join(dir.Path, name), wfs: dir.wfs}
}
dir.NodeMap[name] = node
return node, nil
}
return nil, fuse.ENOENT
@ -54,10 +71,17 @@ func (dir *Dir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
}
func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error {
dir.NodeMapLock.Lock()
defer dir.NodeMapLock.Unlock()
name := path.Join(dir.Path, req.Name)
err := filer.DeleteDirectoryOrFile(dir.wfs.filer, name, req.Dir)
if err != nil {
fmt.Printf("Delete file %s [ERROR] %s\n", name, err)
} else {
delete(dir.NodeMap, req.Name)
}
return err
}