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. 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 #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 31 class 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 65 class 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 88 class EvacuationFailedInfo : public CopyFailedInfo {}; 89 90 #endif /* SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP */