added preload status and cancel

pkg/fs/dir.go

@@ -0,0 +1,32 @@
+// Copyright (C) 2022 Marius Schellenberger
+
+package fs
+
+import (
+	"io"
+	"os"
+)
+
+type Dir struct {
+	f *os.File
+}
+
+func (f *Dir) Read(_ []byte) (int, error) {
+	return 0, io.EOF
+}
+
+func (f *Dir) Seek(_ int64, _ int) (int64, error) {
+	return 0, io.EOF
+}
+
+func (f *Dir) Readdir(count int) ([]os.FileInfo, error) {
+	return f.f.Readdir(count)
+}
+
+func (f *Dir) Stat() (os.FileInfo, error) {
+	return f.f.Stat()
+}
+
+func (f *Dir) Close() error {
+	return f.f.Close()
+}