|
|
package mount
import ( "context" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/mount/meta_cache" "github.com/chrislusf/seaweedfs/weed/util" "github.com/hanwen/go-fuse/v2/fs" "github.com/hanwen/go-fuse/v2/fuse" "math" "os" "syscall" )
var _ = fs.NodeReaddirer(&Directory{}) var _ = fs.NodeGetattrer(&Directory{})
func (dir *Directory) Getattr(ctx context.Context, fh fs.FileHandle, out *fuse.AttrOut) syscall.Errno { out.Mode = 0755 return 0 }
func (dir *Directory) Readdir(ctx context.Context) (fs.DirStream, syscall.Errno) {
dirPath := util.FullPath(dir.FullPath()) glog.V(4).Infof("Readdir %s", dirPath)
sourceChan := make(chan fuse.DirEntry, 64)
stream := newDirectoryListStream(sourceChan)
processEachEntryFn := func(entry *filer.Entry, isLast bool) { sourceChan <- fuse.DirEntry{ Mode: uint32(entry.Mode), Name: entry.Name(), Ino: dirPath.Child(entry.Name()).AsInode(os.ModeDir), } }
if err := meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, dirPath); err != nil { glog.Errorf("dir ReadDirAll %s: %v", dirPath, err) return nil, fs.ToErrno(os.ErrInvalid) } go func() { dir.wfs.metaCache.ListDirectoryEntries(context.Background(), dirPath, "", false, int64(math.MaxInt32), func(entry *filer.Entry) bool { processEachEntryFn(entry, false) return true }) close(sourceChan) }()
return stream, fs.OK }
var _ = fs.DirStream(&DirectoryListStream{})
type DirectoryListStream struct { next fuse.DirEntry sourceChan chan fuse.DirEntry isStarted bool hasNext bool }
func newDirectoryListStream(ch chan fuse.DirEntry) *DirectoryListStream { return &DirectoryListStream{ sourceChan: ch, } }
func (i *DirectoryListStream) HasNext() bool { if !i.isStarted { i.next, i.hasNext = <-i.sourceChan i.isStarted = true } return i.hasNext } func (i *DirectoryListStream) Next() (fuse.DirEntry, syscall.Errno) { t := i.next i.next, i.hasNext = <-i.sourceChan return t, fs.OK } func (i *DirectoryListStream) Close() { }
|