1 files changed, 84 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/table/avl_Range.cpp.h b/src/VBox/Runtime/common/table/avl_Range.cpp.h
new file mode 100644
index 00000000..568333be
--- /dev/null
+++ b/src/VBox/Runtime/common/table/avl_Range.cpp.h
@@ -0,0 +1,84 @@
+/* $Id: avl_Range.cpp.h $ */
+/** @file
+ * kAVLRange  - Range routines for AVL trees.
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef _kAVLRange_h_
+#define _kAVLRange_h_
+
+/**
+ * Finds the range containing the specified key.
+ *
+ * @returns   Pointer to the matching range.
+ *
+ * @param     ppTree  Pointer to Pointer to the tree root node.
+ * @param     Key     The Key to find matching range for.
+ */
+KAVL_DECL(PKAVLNODECORE) KAVL_FN(RangeGet)(PPKAVLNODECORE ppTree, register KAVLKEY Key)
+{
+    register PKAVLNODECORE  pNode = KAVL_GET_POINTER_NULL(ppTree);
+    if (pNode)
+    {
+        for (;;)
+        {
+            if (KAVL_R_IS_IN_RANGE(pNode->Key, pNode->KeyLast, Key))
+                return pNode;
+            if (KAVL_G(pNode->Key, Key))
+            {
+                if (pNode->pLeft != KAVL_NULL)
+                    pNode = KAVL_GET_POINTER(&pNode->pLeft);
+                else
+                    return NULL;
+            }
+            else
+            {
+                if (pNode->pRight != KAVL_NULL)
+                    pNode = KAVL_GET_POINTER(&pNode->pRight);
+                else
+                    return NULL;
+            }
+        }
+    }
+
+    return NULL;
+}
+
+
+/**
+ * Removes the range containing the specified key.
+ *
+ * @returns   Pointer to the matching range.
+ *
+ * @param     ppTree  Pointer to Pointer to the tree root node.
+ * @param     Key     The Key to remove matching range for.
+ */
+RTDECL(PKAVLNODECORE) KAVL_FN(RangeRemove)(PPKAVLNODECORE ppTree, KAVLKEY Key)
+{
+    PKAVLNODECORE pNode = KAVL_FN(RangeGet)(ppTree, Key);
+    if (pNode)
+        return KAVL_FN(Remove)(ppTree, pNode->Key);
+    return NULL;
+}
+
+#endif