More Windows thread oddness experimenting

src/textual/widgets/_directory_tree.py

@@ -3,7 +3,6 @@ from __future__ import annotations
 from dataclasses import dataclass
 from pathlib import Path
 from queue import Empty, Queue
-from threading import RLock
 from typing import ClassVar, Iterable, Iterator
 
 from rich.style import Style
@@ -16,8 +15,6 @@ from ..reactive import var
 from ..worker import Worker, get_current_worker
 from ._tree import TOGGLE_STYLE, Tree, TreeNode
 
-read_dir = RLock()
-
 
 @dataclass
 class DirEntry:
@@ -270,11 +267,15 @@ class DirectoryTree(Tree[DirEntry]):
         Yields:
             Path: A entry within the location.
         """
-        for entry in location.iterdir():
-            if worker.is_cancelled:
-                break
-            yield entry
-            self._tlog(f"Loaded entry {entry} from {location}")
+        yield Path("Foo")
+        yield Path("Bar")
+        yield Path("Baz")
+        yield Path("Wibble")
+        # for entry in location.iterdir():
+        #     if worker.is_cancelled:
+        #         break
+        #     yield entry
+        #     self._tlog(f"Loaded entry {entry} from {location}")
 
     def _load_directory(self, node: TreeNode[DirEntry], worker: Worker) -> None:
         """Load the directory contents for a given node.
@@ -284,7 +285,6 @@ class DirectoryTree(Tree[DirEntry]):
         """
         assert node.data is not None
         node.data.loaded = True
-        with read_dir:
         self.app.call_from_thread(
             self._populate_node,
             node,