1/*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24#include "precompiled.hpp"
25#include "gc/z/zLiveMap.inline.hpp"
26#include "unittest.hpp"
27
28class ZLiveMapTest : public ::testing::Test {
29protected:
30 static void strongly_live_for_large_zpage() {
31 // Large ZPages only have room for one object.
32 ZLiveMap livemap(1);
33
34 bool inc_live;
35 uintptr_t object = 0u;
36
37 // Mark the object strong.
38 livemap.set_atomic(object, false /* finalizable */, inc_live);
39
40 // Check that both bits are in the same segment.
41 ASSERT_EQ(livemap.index_to_segment(0), livemap.index_to_segment(1));
42
43 // Check that the object was marked.
44 ASSERT_TRUE(livemap.get(0));
45
46 // Check that the object was strongly marked.
47 ASSERT_TRUE(livemap.get(1));
48
49 ASSERT_TRUE(inc_live);
50 }
51};
52
53TEST_F(ZLiveMapTest, strongly_live_for_large_zpage) {
54 strongly_live_for_large_zpage();
55}
56