1/*
2 * Copyright (c) 2001, 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
25#ifndef SHARE_GC_G1_HEAPREGIONMANAGER_INLINE_HPP
26#define SHARE_GC_G1_HEAPREGIONMANAGER_INLINE_HPP
27
28#include "gc/g1/heapRegion.hpp"
29#include "gc/g1/heapRegionManager.hpp"
30#include "gc/g1/heapRegionSet.inline.hpp"
31
32inline HeapRegion* HeapRegionManager::addr_to_region(HeapWord* addr) const {
33 assert(addr < heap_end(),
34 "addr: " PTR_FORMAT " end: " PTR_FORMAT, p2i(addr), p2i(heap_end()));
35 assert(addr >= heap_bottom(),
36 "addr: " PTR_FORMAT " bottom: " PTR_FORMAT, p2i(addr), p2i(heap_bottom()));
37
38 HeapRegion* hr = _regions.get_by_address(addr);
39 return hr;
40}
41
42inline HeapRegion* HeapRegionManager::at(uint index) const {
43 assert(is_available(index), "pre-condition");
44 HeapRegion* hr = _regions.get_by_index(index);
45 assert(hr != NULL, "sanity");
46 assert(hr->hrm_index() == index, "sanity");
47 return hr;
48}
49
50inline HeapRegion* HeapRegionManager::at_or_null(uint index) const {
51 if (!is_available(index)) {
52 return NULL;
53 }
54 HeapRegion* hr = _regions.get_by_index(index);
55 assert(hr != NULL, "All available regions must have a HeapRegion but index %u has not.", index);
56 assert(hr->hrm_index() == index, "sanity");
57 return hr;
58}
59
60inline HeapRegion* HeapRegionManager::next_region_in_humongous(HeapRegion* hr) const {
61 uint index = hr->hrm_index();
62 assert(is_available(index), "pre-condition");
63 assert(hr->is_humongous(), "next_region_in_humongous should only be called for a humongous region.");
64 index++;
65 if (index < max_length() && is_available(index) && at(index)->is_continues_humongous()) {
66 return at(index);
67 } else {
68 return NULL;
69 }
70}
71
72inline void HeapRegionManager::insert_into_free_list(HeapRegion* hr) {
73 _free_list.add_ordered(hr);
74}
75
76inline void HeapRegionManager::allocate_free_regions_starting_at(uint first, uint num_regions) {
77 _free_list.remove_starting_at(at(first), num_regions);
78}
79
80#endif // SHARE_GC_G1_HEAPREGIONMANAGER_INLINE_HPP
81