1/*
2 * Copyright (c) 2018, 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
25#include "precompiled.hpp"
26#include "logging/log.hpp"
27#include "memory/metaspace/metaDebug.hpp"
28#include "runtime/os.hpp"
29#include "runtime/thread.hpp"
30#include "utilities/debug.hpp"
31#include "utilities/globalDefinitions.hpp"
32
33namespace metaspace {
34
35int Metadebug::_allocation_fail_alot_count = 0;
36
37void Metadebug::init_allocation_fail_alot_count() {
38 if (MetadataAllocationFailALot) {
39 _allocation_fail_alot_count =
40 1+(long)((double)MetadataAllocationFailALotInterval*os::random()/(max_jint+1.0));
41 }
42}
43
44#ifdef ASSERT
45bool Metadebug::test_metadata_failure() {
46 if (MetadataAllocationFailALot &&
47 Threads::is_vm_complete()) {
48 if (_allocation_fail_alot_count > 0) {
49 _allocation_fail_alot_count--;
50 } else {
51 log_trace(gc, metaspace, freelist)("Metadata allocation failing for MetadataAllocationFailALot");
52 init_allocation_fail_alot_count();
53 return true;
54 }
55 }
56 return false;
57}
58#endif
59
60
61} // namespace metaspace
62
63
64