7923
|
1 |
/*
|
|
2 |
* copyright (c) 2011, 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_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP
|
|
26 |
#define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP
|
|
27 |
|
|
28 |
#include "gc_implementation/g1/heapRegionSet.hpp"
|
|
29 |
|
|
30 |
//////////////////// HeapRegionSetBase ////////////////////
|
|
31 |
|
|
32 |
inline void HeapRegionSetBase::update_for_addition(HeapRegion* hr) {
|
|
33 |
// Assumes the caller has already verified the region.
|
|
34 |
|
|
35 |
_length += 1;
|
|
36 |
if (!hr->isHumongous()) {
|
|
37 |
_region_num += 1;
|
|
38 |
} else {
|
|
39 |
_region_num += calculate_region_num(hr);
|
|
40 |
}
|
|
41 |
_total_used_bytes += hr->used();
|
|
42 |
}
|
|
43 |
|
|
44 |
inline void HeapRegionSetBase::add_internal(HeapRegion* hr) {
|
|
45 |
hrl_assert_region_ok(this, hr, NULL);
|
|
46 |
assert(hr->next() == NULL, hrl_ext_msg(this, "should not already be linked"));
|
|
47 |
|
|
48 |
update_for_addition(hr);
|
|
49 |
hr->set_containing_set(this);
|
|
50 |
}
|
|
51 |
|
|
52 |
inline void HeapRegionSetBase::update_for_removal(HeapRegion* hr) {
|
|
53 |
// Assumes the caller has already verified the region.
|
|
54 |
assert(_length > 0, hrl_ext_msg(this, "pre-condition"));
|
|
55 |
_length -= 1;
|
|
56 |
|
|
57 |
size_t region_num_diff;
|
|
58 |
if (!hr->isHumongous()) {
|
|
59 |
region_num_diff = 1;
|
|
60 |
} else {
|
|
61 |
region_num_diff = calculate_region_num(hr);
|
|
62 |
}
|
|
63 |
assert(region_num_diff <= _region_num,
|
|
64 |
hrl_err_msg("[%s] region's region num: "SIZE_FORMAT" "
|
|
65 |
"should be <= region num: "SIZE_FORMAT,
|
|
66 |
name(), region_num_diff, _region_num));
|
|
67 |
_region_num -= region_num_diff;
|
|
68 |
|
|
69 |
size_t used_bytes = hr->used();
|
|
70 |
assert(used_bytes <= _total_used_bytes,
|
|
71 |
hrl_err_msg("[%s] region's used bytes: "SIZE_FORMAT" "
|
|
72 |
"should be <= used bytes: "SIZE_FORMAT,
|
|
73 |
name(), used_bytes, _total_used_bytes));
|
|
74 |
_total_used_bytes -= used_bytes;
|
|
75 |
}
|
|
76 |
|
|
77 |
inline void HeapRegionSetBase::remove_internal(HeapRegion* hr) {
|
|
78 |
hrl_assert_region_ok(this, hr, this);
|
|
79 |
assert(hr->next() == NULL, hrl_ext_msg(this, "should already be unlinked"));
|
|
80 |
|
|
81 |
hr->set_containing_set(NULL);
|
|
82 |
update_for_removal(hr);
|
|
83 |
}
|
|
84 |
|
|
85 |
//////////////////// HeapRegionSet ////////////////////
|
|
86 |
|
|
87 |
inline void HeapRegionSet::add(HeapRegion* hr) {
|
|
88 |
hrl_assert_mt_safety_ok(this);
|
|
89 |
// add_internal() will verify the region.
|
|
90 |
add_internal(hr);
|
|
91 |
}
|
|
92 |
|
|
93 |
inline void HeapRegionSet::remove(HeapRegion* hr) {
|
|
94 |
hrl_assert_mt_safety_ok(this);
|
|
95 |
// remove_internal() will verify the region.
|
|
96 |
remove_internal(hr);
|
|
97 |
}
|
|
98 |
|
|
99 |
inline void HeapRegionSet::remove_with_proxy(HeapRegion* hr,
|
|
100 |
HeapRegionSet* proxy_set) {
|
|
101 |
// No need to fo the MT safety check here given that this method
|
|
102 |
// does not update the contents of the set but instead accumulates
|
|
103 |
// the changes in proxy_set which is assumed to be thread-local.
|
|
104 |
hrl_assert_sets_match(this, proxy_set);
|
|
105 |
hrl_assert_region_ok(this, hr, this);
|
|
106 |
|
|
107 |
hr->set_containing_set(NULL);
|
|
108 |
proxy_set->update_for_addition(hr);
|
|
109 |
}
|
|
110 |
|
|
111 |
//////////////////// HeapRegionLinkedList ////////////////////
|
|
112 |
|
|
113 |
inline void HeapRegionLinkedList::add_as_tail(HeapRegion* hr) {
|
|
114 |
hrl_assert_mt_safety_ok(this);
|
|
115 |
assert((length() == 0 && _head == NULL && _tail == NULL) ||
|
|
116 |
(length() > 0 && _head != NULL && _tail != NULL),
|
|
117 |
hrl_ext_msg(this, "invariant"));
|
|
118 |
// add_internal() will verify the region.
|
|
119 |
add_internal(hr);
|
|
120 |
|
|
121 |
// Now link the region.
|
|
122 |
if (_tail != NULL) {
|
|
123 |
_tail->set_next(hr);
|
|
124 |
} else {
|
|
125 |
_head = hr;
|
|
126 |
}
|
|
127 |
_tail = hr;
|
|
128 |
}
|
|
129 |
|
|
130 |
inline HeapRegion* HeapRegionLinkedList::remove_head() {
|
|
131 |
hrl_assert_mt_safety_ok(this);
|
|
132 |
assert(!is_empty(), hrl_ext_msg(this, "the list should not be empty"));
|
|
133 |
assert(length() > 0 && _head != NULL && _tail != NULL,
|
|
134 |
hrl_ext_msg(this, "invariant"));
|
|
135 |
|
|
136 |
// We need to unlink it first.
|
|
137 |
HeapRegion* hr = _head;
|
|
138 |
_head = hr->next();
|
|
139 |
if (_head == NULL) {
|
|
140 |
_tail = NULL;
|
|
141 |
}
|
|
142 |
hr->set_next(NULL);
|
|
143 |
|
|
144 |
// remove_internal() will verify the region.
|
|
145 |
remove_internal(hr);
|
|
146 |
return hr;
|
|
147 |
}
|
|
148 |
|
|
149 |
inline HeapRegion* HeapRegionLinkedList::remove_head_or_null() {
|
|
150 |
hrl_assert_mt_safety_ok(this);
|
|
151 |
|
|
152 |
if (!is_empty()) {
|
|
153 |
return remove_head();
|
|
154 |
} else {
|
|
155 |
return NULL;
|
|
156 |
}
|
|
157 |
}
|
|
158 |
|
|
159 |
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP
|