1/*
2 * Copyright (c) 2017, 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_ZGRANULEMAP_INLINE_HPP
25#define SHARE_GC_Z_ZGRANULEMAP_INLINE_HPP
26
27#include "gc/z/zAddress.inline.hpp"
28#include "gc/z/zGlobals.hpp"
29#include "gc/z/zGranuleMap.hpp"
30#include "memory/allocation.inline.hpp"
31
32template <typename T>
33inline ZGranuleMap<T>::ZGranuleMap() :
34 _size(ZAddressOffsetMax >> ZGranuleSizeShift),
35 _map(MmapArrayAllocator<T>::allocate(_size, mtGC)) {}
36
37template <typename T>
38inline ZGranuleMap<T>::~ZGranuleMap() {
39 MmapArrayAllocator<T>::free(_map, _size);
40}
41
42template <typename T>
43inline size_t ZGranuleMap<T>::index_for_addr(uintptr_t addr) const {
44 assert(!ZAddress::is_null(addr), "Invalid address");
45
46 const size_t index = ZAddress::offset(addr) >> ZGranuleSizeShift;
47 assert(index < _size, "Invalid index");
48
49 return index;
50}
51
52template <typename T>
53inline T ZGranuleMap<T>::get(uintptr_t addr) const {
54 const size_t index = index_for_addr(addr);
55 return _map[index];
56}
57
58template <typename T>
59inline void ZGranuleMap<T>::put(uintptr_t addr, T value) {
60 const size_t index = index_for_addr(addr);
61 _map[index] = value;
62}
63
64template <typename T>
65inline void ZGranuleMap<T>::put(uintptr_t addr, size_t size, T value) {
66 assert(is_aligned(size, ZGranuleSize), "Misaligned");
67
68 const size_t start_index = index_for_addr(addr);
69 const size_t end_index = start_index + (size >> ZGranuleSizeShift);
70 for (size_t index = start_index; index < end_index; index++) {
71 _map[index] = value;
72 }
73}
74
75template <typename T>
76inline ZGranuleMapIterator<T>::ZGranuleMapIterator(const ZGranuleMap<T>* map) :
77 _map(map),
78 _next(0) {}
79
80template <typename T>
81inline bool ZGranuleMapIterator<T>::next(T* value) {
82 if (_next < _map->_size) {
83 *value = _map->_map[_next++];
84 return true;
85 }
86
87 // End of map
88 return false;
89}
90
91template <typename T>
92inline bool ZGranuleMapIterator<T>::next(T** value) {
93 if (_next < _map->_size) {
94 *value = _map->_map + _next++;
95 return true;
96 }
97
98 // End of map
99 return false;
100}
101
102#endif // SHARE_GC_Z_ZGRANULEMAP_INLINE_HPP
103