Fixed a data race when iterating directory contents

modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.cpp

@@ -29,8 +29,7 @@ namespace juce
 
 DirectoryContentsList::DirectoryContentsList (const FileFilter* f, TimeSliceThread& t)
    : fileFilter (f), thread (t),
-     fileTypeFlags (File::ignoreHiddenFiles | File::findFiles),
-     shouldStop (true)
+     fileTypeFlags (File::ignoreHiddenFiles | File::findFiles)
 {
 }
 

modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.h

@@ -209,7 +209,7 @@ private:
     OwnedArray<FileInfo> files;
 
     std::unique_ptr<DirectoryIterator> fileFindHandle;
-    bool volatile shouldStop;
+    std::atomic<bool> shouldStop { true };
 
     int useTimeSlice() override;
     void stopSearching();