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