Copied userlandfs code from the test tree to the haiku source tree,

where it will be ported to Haiku. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20216 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-02-24 00:30:19 +00:00
parent d5e020e912
commit 83812f6752
96 changed files with 25005 additions and 0 deletions
@@ -0,0 +1,80 @@
+// ObjectTracker.h
+
+#ifndef USERLAND_FS_OBJECT_TRACKER_H
+#define USERLAND_FS_OBJECT_TRACKER_H
+
+#include "DLList.h"
+#include "Locker.h"
+
+namespace UserlandFSUtil {
+
+class ObjectTracker;
+class GetObjectTrackableLink;
+
+// ObjectTrackable
+class ObjectTrackable {
+public:
+								ObjectTrackable();
+	virtual						~ObjectTrackable();
+
+private:
+	friend class ObjectTracker;
+	friend class GetObjectTrackableLink;
+
+			DLListLink<ObjectTrackable> fLink;
+};
+
+// GetObjectTrackableLink
+struct GetObjectTrackableLink {
+	inline DLListLink<ObjectTrackable> *operator()(
+		ObjectTrackable* trackable) const
+	{
+		return &trackable->fLink;
+	}
+
+	inline const DLListLink<ObjectTrackable> *operator()(
+		const ObjectTrackable* trackable) const
+	{
+		return &trackable->fLink;
+	}
+};
+
+// ObjectTracker
+class ObjectTracker {
+private:
+								ObjectTracker();
+								~ObjectTracker();
+
+public:
+
+	static	ObjectTracker*		InitDefault();
+	static	void				ExitDefault();
+	static	ObjectTracker*		GetDefault();
+
+private:
+			friend class ObjectTrackable;
+
+			void				AddTrackable(ObjectTrackable* trackable);
+			void				RemoveTrackable(ObjectTrackable* trackable);
+
+private:
+			Locker				fLock;
+			DLList<ObjectTrackable, GetObjectTrackableLink> fTrackables;
+
+	static	ObjectTracker*		sTracker;
+};
+
+}	// namespace UserlandFSUtil
+
+using UserlandFSUtil::ObjectTrackable;
+using UserlandFSUtil::ObjectTracker;
+
+#ifdef DEBUG_OBJECT_TRACKING
+#	define ONLY_OBJECT_TRACKABLE_BASE_CLASS		: private ObjectTrackable
+#	define FIRST_OBJECT_TRACKABLE_BASE_CLASS	private ObjectTrackable,
+#else
+#	define ONLY_OBJECT_TRACKABLE_BASE_CLASS
+#	define FIRST_OBJECT_TRACKABLE_BASE_CLASS
+#endif
+
+#endif	// USERLAND_FS_OBJECT_TRACKER_H