1 /* 2 * Copyright (c) 2015, 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 #ifndef SHARE_GC_Z_ZARRAY_HPP 25 #define SHARE_GC_Z_ZARRAY_HPP 26 27 #include "memory/allocation.hpp" 28 #include "utilities/globalDefinitions.hpp" 29 30 template <typename T> 31 class ZArray { 32 private: 33 static const size_t initial_capacity = 32; 34 35 T* _array; 36 size_t _size; 37 size_t _capacity; 38 39 NONCOPYABLE(ZArray); 40 41 void expand(size_t new_capacity); 42 43 public: 44 ZArray(); 45 ~ZArray(); 46 47 size_t size() const; 48 bool is_empty() const; 49 50 T at(size_t index) const; 51 52 void add(T value); 53 void transfer(ZArray<T>* from); 54 void clear(); 55 }; 56 57 template <typename T, bool parallel> 58 class ZArrayIteratorImpl : public StackObj { 59 private: 60 ZArray<T>* const _array; 61 size_t _next; 62 63 public: 64 ZArrayIteratorImpl(ZArray<T>* array); 65 66 bool next(T* elem); 67 }; 68 69 // Iterator types 70 #define ZARRAY_SERIAL false 71 #define ZARRAY_PARALLEL true 72 73 template <typename T> 74 class ZArrayIterator : public ZArrayIteratorImpl<T, ZARRAY_SERIAL> { 75 public: 76 ZArrayIterator(ZArray<T>* array); 77 }; 78 79 template <typename T> 80 class ZArrayParallelIterator : public ZArrayIteratorImpl<T, ZARRAY_PARALLEL> { 81 public: 82 ZArrayParallelIterator(ZArray<T>* array); 83 }; 84 85 #endif // SHARE_GC_Z_ZARRAY_HPP