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10405
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1 /*
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_COPYFAILEDINFO_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_COPYFAILEDINFO_HPP
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27
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28 #include "runtime/thread.hpp"
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29 #include "utilities/globalDefinitions.hpp"
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30
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31 class CopyFailedInfo : public CHeapObj<mtGC> {
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32 size_t _first_size;
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33 size_t _smallest_size;
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34 size_t _total_size;
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35 uint _count;
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36
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37 public:
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38 CopyFailedInfo() : _first_size(0), _smallest_size(0), _total_size(0), _count(0) {}
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39
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40 virtual void register_copy_failure(size_t size) {
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41 if (_first_size == 0) {
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42 _first_size = size;
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43 _smallest_size = size;
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44 } else if (size < _smallest_size) {
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45 _smallest_size = size;
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46 }
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47 _total_size += size;
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48 _count++;
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49 }
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50
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51 virtual void reset() {
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52 _first_size = 0;
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53 _smallest_size = 0;
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54 _total_size = 0;
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55 _count = 0;
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56 }
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57
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58 bool has_failed() const { return _count != 0; }
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59 size_t first_size() const { return _first_size; }
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60 size_t smallest_size() const { return _smallest_size; }
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61 size_t total_size() const { return _total_size; }
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62 uint failed_count() const { return _count; }
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63 };
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64
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65 class PromotionFailedInfo : public CopyFailedInfo {
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66 OSThread* _thread;
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67
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68 public:
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69 PromotionFailedInfo() : CopyFailedInfo(), _thread(NULL) {}
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70
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71 void register_copy_failure(size_t size) {
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72 CopyFailedInfo::register_copy_failure(size);
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73 if (_thread == NULL) {
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74 _thread = Thread::current()->osthread();
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75 } else {
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76 assert(_thread == Thread::current()->osthread(), "The PromotionFailedInfo should be thread local.");
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77 }
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78 }
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79
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80 void reset() {
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81 CopyFailedInfo::reset();
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82 _thread = NULL;
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83 }
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84
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85 OSThread* thread() const { return _thread; }
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86 };
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87
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88 class EvacuationFailedInfo : public CopyFailedInfo {};
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89
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90 #endif /* SHARE_VM_GC_IMPLEMENTATION_SHARED_COPYFAILEDINFO_HPP */
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