1 /* 2 * Copyright (c) 2017, 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 #ifndef SHARE_GC_Z_ZRELOCATIONSET_HPP 25 #define SHARE_GC_Z_ZRELOCATIONSET_HPP 26 27 #include "memory/allocation.hpp" 28 29 class ZPage; 30 31 class ZRelocationSet VALUE_OBJ_CLASS_SPEC { 32 template <bool> friend class ZRelocationSetIteratorImpl; 33 34 private: 35 ZPage** _pages; 36 size_t _npages; 37 38 public: 39 ZRelocationSet(); 40 41 void populate(const ZPage* const* group0, size_t ngroup0, 42 const ZPage* const* group1, size_t ngroup1); 43 }; 44 45 template <bool parallel> 46 class ZRelocationSetIteratorImpl : public StackObj { 47 private: 48 ZRelocationSet* const _relocation_set; 49 size_t _next; 50 51 public: 52 ZRelocationSetIteratorImpl(ZRelocationSet* relocation_set); 53 54 bool next(ZPage** page); 55 }; 56 57 // Iterator types 58 #define ZRELOCATIONSET_SERIAL false 59 #define ZRELOCATIONSET_PARALLEL true 60 61 class ZRelocationSetIterator : public ZRelocationSetIteratorImpl<ZRELOCATIONSET_SERIAL> { 62 public: 63 ZRelocationSetIterator(ZRelocationSet* relocation_set) : 64 ZRelocationSetIteratorImpl<ZRELOCATIONSET_SERIAL>(relocation_set) {} 65 }; 66 67 class ZRelocationSetParallelIterator : public ZRelocationSetIteratorImpl<ZRELOCATIONSET_PARALLEL> { 68 public: 69 ZRelocationSetParallelIterator(ZRelocationSet* relocation_set) : 70 ZRelocationSetIteratorImpl<ZRELOCATIONSET_PARALLEL>(relocation_set) {} 71 }; 72 73 #endif // SHARE_GC_Z_ZRELOCATIONSET_HPP