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 #include "precompiled.hpp"
  25 #include "gc/z/zRelocationSet.hpp"
  26 #include "memory/allocation.inline.hpp"
  27 
  28 ZRelocationSet::ZRelocationSet() :
  29     _pages(NULL),
  30     _npages(0) {}
  31 
  32 void ZRelocationSet::populate(const ZPage* const* group0, size_t ngroup0,
  33                               const ZPage* const* group1, size_t ngroup1) {
  34   _npages = ngroup0 + ngroup1;
  35   _pages = REALLOC_C_HEAP_ARRAY(ZPage*, _pages, _npages, mtGC);
  36 
  37   if (_pages != NULL) {
  38     if (group0 != NULL) {
  39       memcpy(_pages, group0, ngroup0 * sizeof(ZPage*));
  40     }
  41     if (group1 != NULL) {
  42       memcpy(_pages + ngroup0, group1, ngroup1 * sizeof(ZPage*));
  43     }
  44   }
  45 }