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_ZPAGETABLE_INLINE_HPP
  25 #define SHARE_GC_Z_ZPAGETABLE_INLINE_HPP
  26 
  27 #include "gc/z/zAddress.inline.hpp"
  28 #include "gc/z/zGranuleMap.inline.hpp"
  29 #include "gc/z/zPageTable.hpp"
  30 
  31 inline ZPage* ZPageTable::get(uintptr_t addr) const {
  32   return _map.get(addr).page();
  33 }
  34 
  35 inline bool ZPageTable::is_relocating(uintptr_t addr) const {
  36   return _map.get(addr).relocating();
  37 }
  38 
  39 inline ZPageTableIterator::ZPageTableIterator(const ZPageTable* pagetable) :
  40     _iter(&pagetable->_map),
  41     _prev(NULL) {}
  42 
  43 inline bool ZPageTableIterator::next(ZPage** page) {
  44   ZPageTableEntry entry;
  45 
  46   while (_iter.next(&entry)) {
  47     ZPage* const next = entry.page();
  48     if (next != NULL && next != _prev) {
  49       // Next page found
  50       *page = _prev = next;
  51       return true;
  52     }
  53   }
  54 
  55   // No more pages
  56   return false;
  57 }
  58 
  59 #endif // SHARE_GC_Z_ZPAGETABLE_INLINE_HPP