Added KPartitionVisitor class used for advanced partition tree traversal.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4219 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/disk_device_manager/KPartitionVisitor.h

@@ -0,0 +1,27 @@
+// KPartitionVisitor.h
+
+#ifndef _K_DISK_DEVICE_PARTITION_VISITOR_H
+#define _K_DISK_DEVICE_PARTITION_VISITOR_H
+
+#include "disk_device_manager.h"
+
+namespace BPrivate {
+namespace DiskDevice {
+
+class KPartition;
+
+class KPartitionVisitor {
+public:
+	KPartitionVisitor();
+	virtual ~KPartitionVisitor();
+
+	virtual bool VisitPre(KPartition *partition);
+	virtual bool VisitPost(KPartition *partition);
+};
+
+} // namespace DiskDevice
+} // namespace BPrivate
+
+using BPrivate::DiskDevice::KPartitionVisitor;
+
+#endif	// _K_DISK_DEVICE_PARTITION_VISITOR_H

src/kernel/core/disk_device_manager/Jamfile

@@ -24,6 +24,7 @@ SharedLibrary disk_device_manager :
 	KFileSystem.cpp
 	KPartition.cpp
 	KPartitioningSystem.cpp
+	KPartitionVisitor.cpp
 	KPhysicalPartition.cpp
 	KShadowPartition.cpp
 	UserDataWriter.cpp

src/kernel/core/disk_device_manager/KPartitionVisitor.cpp

@@ -0,0 +1,28 @@
+// KPartitionVisitor.cpp
+
+#include "KPartitionVisitor.h"
+
+// constructor
+KPartitionVisitor::KPartitionVisitor()
+{
+}
+
+// destructor
+KPartitionVisitor::~KPartitionVisitor()
+{
+}
+
+// VisitPre
+bool
+KPartitionVisitor::VisitPre(KPartition *partition)
+{
+	return false;
+}
+
+// VisitPost
+bool
+KPartitionVisitor::VisitPost(KPartition *partition)
+{
+	return false;
+}
+