diff src/share/vm/utilities/linkedlist.cpp @ 20360:833b0f92429a

8046598: Scalable Native memory tracking development Summary: Enhance scalability of native memory tracking Reviewed-by: coleenp, ctornqvi, gtriantafill
author zgu
date Wed, 27 Aug 2014 08:19:12 -0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/utilities/linkedlist.cpp	Wed Aug 27 08:19:12 2014 -0400
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+/*
+ * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+
+/////////////// Unit tests ///////////////
+
+#ifndef PRODUCT
+
+#include "runtime/os.hpp"
+#include "utilities/linkedlist.hpp"
+#include "memory/allocation.hpp"
+#include "memory/allocation.inline.hpp"
+
+class Integer : public StackObj {
+ private:
+  int  _value;
+ public:
+  Integer(int i) : _value(i) { }
+
+  int   value() const { return _value; }
+  bool  equals(const Integer& i) const {
+   return _value == i.value();
+  }
+};
+
+int compare_Integer(const Integer& i1, const Integer& i2) {
+  return i1.value() - i2.value();
+}
+
+void check_list_values(const int* expected, const LinkedList<Integer>* list) {
+  LinkedListNode<Integer>* head = list->head();
+  int index = 0;
+  while (head != NULL) {
+    assert(head->peek()->value() == expected[index], "Unexpected value");
+    head = head->next();
+    index ++;
+  }
+}
+
+void Test_linked_list() {
+  LinkedListImpl<Integer, ResourceObj::C_HEAP, mtTest>  ll;
+
+
+  // Test regular linked list
+  assert(ll.is_empty(), "Start with empty list");
+  Integer one(1), two(2), three(3), four(4), five(5), six(6);
+
+  ll.add(six);
+  assert(!ll.is_empty(), "Should not be empty");
+
+  Integer* i = ll.find(six);
+  assert(i != NULL, "Should find it");
+
+  i = ll.find(three);
+  assert(i == NULL, "Not in the list");
+
+  LinkedListNode<Integer>* node = ll.find_node(six);
+  assert(node != NULL, "6 is in the list");
+
+  ll.insert_after(three, node);
+  ll.insert_before(one, node);
+  int expected[3] = {1, 6, 3};
+  check_list_values(expected, &ll);
+
+  ll.add(two);
+  ll.add(four);
+  ll.add(five);
+
+  // Test sorted linked list
+  SortedLinkedList<Integer, compare_Integer, ResourceObj::C_HEAP, mtTest> sl;
+  assert(sl.is_empty(), "Start with empty list");
+
+  size_t ll_size = ll.size();
+  sl.move(&ll);
+  size_t sl_size = sl.size();
+
+  assert(ll_size == sl_size, "Should be the same size");
+  assert(ll.is_empty(), "No more entires");
+
+  // sorted result
+  int sorted_result[] = {1, 2, 3, 4, 5, 6};
+  check_list_values(sorted_result, &sl);
+
+  node = sl.find_node(four);
+  assert(node != NULL, "4 is in the list");
+  sl.remove_before(node);
+  sl.remove_after(node);
+  int remains[] = {1, 2, 4, 6};
+  check_list_values(remains, &sl);
+}
+#endif // PRODUCT
+