1 /*
   2  * Copyright (c) 2015, 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_ZPHYSICALMEMORY_INLINE_HPP
  25 #define SHARE_GC_Z_ZPHYSICALMEMORY_INLINE_HPP
  26 
  27 #include "gc/z/zPhysicalMemory.hpp"
  28 #include "utilities/debug.hpp"
  29 
  30 inline ZPhysicalMemorySegment::ZPhysicalMemorySegment(uintptr_t start, size_t size) :
  31     _start(start),
  32     _end(start + size) {}
  33 
  34 inline uintptr_t ZPhysicalMemorySegment::start() const {
  35   return _start;
  36 }
  37 
  38 inline uintptr_t ZPhysicalMemorySegment::end() const {
  39   return _end;
  40 }
  41 
  42 inline size_t ZPhysicalMemorySegment::size() const {
  43   return end() - start();
  44 }
  45 
  46 inline void ZPhysicalMemorySegment::expand(size_t size) {
  47   _end += size;
  48 }
  49 
  50 inline ZPhysicalMemorySegment ZPhysicalMemorySegment::split(size_t split_size) {
  51   assert(split_size <= size(), "Invalid size");
  52   ZPhysicalMemorySegment segment(_start, split_size);
  53   _start += split_size;
  54   return segment;
  55 }
  56 
  57 inline bool ZPhysicalMemory::is_null() const {
  58   return _nsegments == 0;
  59 }
  60 
  61 inline size_t ZPhysicalMemory::nsegments() const {
  62   return _nsegments;
  63 }
  64 
  65 inline ZPhysicalMemorySegment ZPhysicalMemory::segment(size_t index) const {
  66   assert(index < _nsegments, "Invalid segment index");
  67   return _segments[index];
  68 }
  69 
  70 inline size_t ZPhysicalMemoryManager::max_capacity() const {
  71   return _max_capacity;
  72 }
  73 
  74 inline size_t ZPhysicalMemoryManager::capacity() const {
  75   return _capacity;
  76 }
  77 
  78 inline size_t ZPhysicalMemoryManager::used() const {
  79   return _used;
  80 }
  81 
  82 inline size_t ZPhysicalMemoryManager::available() const {
  83   return _max_capacity - _used;
  84 }
  85 
  86 #endif // SHARE_GC_Z_ZPHYSICALMEMORY_INLINE_HPP