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 #include "utilities/growableArray.hpp"
  30 
  31 template <typename T>
  32 class ZArray : public GrowableArrayCHeap<T, mtGC> {
  33 public:
  34   ZArray();
  35 
  36   void transfer(ZArray<T>* from);
  37 };
  38 
  39 template <typename T, bool parallel>
  40 class ZArrayIteratorImpl : public StackObj {
  41 private:
  42   ZArray<T>* const _array;
  43   int              _next;
  44 
  45 public:
  46   ZArrayIteratorImpl(ZArray<T>* array);
  47 
  48   bool next(T* elem);
  49 };
  50 
  51 // Iterator types
  52 #define ZARRAY_SERIAL      false
  53 #define ZARRAY_PARALLEL    true
  54 
  55 template <typename T>
  56 class ZArrayIterator : public ZArrayIteratorImpl<T, ZARRAY_SERIAL> {
  57 public:
  58   ZArrayIterator(ZArray<T>* array);
  59 };
  60 
  61 template <typename T>
  62 class ZArrayParallelIterator : public ZArrayIteratorImpl<T, ZARRAY_PARALLEL> {
  63 public:
  64   ZArrayParallelIterator(ZArray<T>* array);
  65 };
  66 
  67 #endif // SHARE_GC_Z_ZARRAY_HPP