copyFailedInfo.hpp revision 8413:92457dfb91bd 
1/*
2 * Copyright (c) 2012, 2015, 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.
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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
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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.
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24
25#ifndef SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP
26#define SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP
27
28#include "runtime/thread.hpp"
29#include "utilities/globalDefinitions.hpp"
30
31class CopyFailedInfo : public CHeapObj<mtGC> {
32  size_t    _first_size;
33  size_t    _smallest_size;
34  size_t    _total_size;
35  uint      _count;
36
37 public:
38  CopyFailedInfo() : _first_size(0), _smallest_size(0), _total_size(0), _count(0) {}
39
40  virtual void register_copy_failure(size_t size) {
41    if (_first_size == 0) {
42      _first_size = size;
43      _smallest_size = size;
44    } else if (size < _smallest_size) {
45      _smallest_size = size;
46    }
47    _total_size += size;
48    _count++;
49  }
50
51  virtual void reset() {
52    _first_size = 0;
53    _smallest_size = 0;
54    _total_size = 0;
55    _count = 0;
56  }
57
58  bool has_failed() const { return _count != 0; }
59  size_t first_size() const { return _first_size; }
60  size_t smallest_size() const { return _smallest_size; }
61  size_t total_size() const { return _total_size; }
62  uint failed_count() const { return _count; }
63};
64
65class PromotionFailedInfo : public CopyFailedInfo {
66  OSThread* _thread;
67
68 public:
69  PromotionFailedInfo() : CopyFailedInfo(), _thread(NULL) {}
70
71  void register_copy_failure(size_t size) {
72    CopyFailedInfo::register_copy_failure(size);
73    if (_thread == NULL) {
74      _thread = Thread::current()->osthread();
75    } else {
76      assert(_thread == Thread::current()->osthread(), "The PromotionFailedInfo should be thread local.");
77    }
78  }
79
80  void reset() {
81    CopyFailedInfo::reset();
82    _thread = NULL;
83  }
84
85  OSThread* thread() const { return _thread; }
86};
87
88class EvacuationFailedInfo : public CopyFailedInfo {};
89
90#endif /* SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP */
91