1 /* 2 * Copyright (c) 2017, 2019, 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_GC_SERIAL_SERIALHEAP_HPP 26 #define SHARE_GC_SERIAL_SERIALHEAP_HPP 27 28 #include "gc/serial/defNewGeneration.hpp" 29 #include "gc/serial/tenuredGeneration.hpp" 30 #include "gc/shared/genCollectedHeap.hpp" 31 #include "utilities/growableArray.hpp" 32 33 class GCMemoryManager; 34 class MemoryPool; 35 class TenuredGeneration; 36 37 class SerialHeap : public GenCollectedHeap { 38 private: 39 MemoryPool* _eden_pool; 40 MemoryPool* _survivor_pool; 41 MemoryPool* _old_pool; 42 43 virtual void initialize_serviceability(); 44 45 public: 46 static SerialHeap* heap(); 47 48 SerialHeap(); 49 kind() const50 virtual Name kind() const { 51 return CollectedHeap::Serial; 52 } 53 name() const54 virtual const char* name() const { 55 return "Serial"; 56 } 57 58 virtual GrowableArray<GCMemoryManager*> memory_managers(); 59 virtual GrowableArray<MemoryPool*> memory_pools(); 60 young_gen() const61 DefNewGeneration* young_gen() const { 62 assert(_young_gen->kind() == Generation::DefNew, "Wrong generation type"); 63 return static_cast<DefNewGeneration*>(_young_gen); 64 } 65 old_gen() const66 TenuredGeneration* old_gen() const { 67 assert(_old_gen->kind() == Generation::MarkSweepCompact, "Wrong generation type"); 68 return static_cast<TenuredGeneration*>(_old_gen); 69 } 70 71 // Apply "cur->do_oop" or "older->do_oop" to all the oops in objects 72 // allocated since the last call to save_marks in the young generation. 73 // The "cur" closure is applied to references in the younger generation 74 // at "level", and the "older" closure to older generations. 75 template <typename OopClosureType1, typename OopClosureType2> 76 void oop_since_save_marks_iterate(OopClosureType1* cur, 77 OopClosureType2* older); 78 }; 79 80 #endif // SHARE_GC_SERIAL_SERIALHEAP_HPP 81