1 /*
2 * Copyright (c) 2001, 2014, 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 *
114 // Clear the cached CSet starting regions and time stamps.
115 // Their validity is dependent on the GC timestamp.
116 clear_cset_start_regions();
117 }
118
119 inline void G1CollectedHeap::increment_gc_time_stamp() {
120 ++_gc_time_stamp;
121 OrderAccess::fence();
122 }
123
124 inline void G1CollectedHeap::old_set_remove(HeapRegion* hr) {
125 _old_set.remove(hr);
126 }
127
128 inline bool G1CollectedHeap::obj_in_cs(oop obj) {
129 HeapRegion* r = _hrm.addr_to_region((HeapWord*) obj);
130 return r != NULL && r->in_collection_set();
131 }
132
133 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size,
134 unsigned int* gc_count_before_ret,
135 int* gclocker_retry_count_ret) {
136 assert_heap_not_locked_and_not_at_safepoint();
137 assert(!is_humongous(word_size), "attempt_allocation() should not "
138 "be called for humongous allocation requests");
139
140 AllocationContext_t context = AllocationContext::current();
141 HeapWord* result = _allocator->mutator_alloc_region(context)->attempt_allocation(word_size,
142 false /* bot_updates */);
143 if (result == NULL) {
144 result = attempt_allocation_slow(word_size,
145 context,
146 gc_count_before_ret,
147 gclocker_retry_count_ret);
148 }
149 assert_heap_not_locked();
150 if (result != NULL) {
151 dirty_young_block(result, word_size);
152 }
153 return result;
154 }
155
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1 /*
2 * Copyright (c) 2001, 2015, 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 *
114 // Clear the cached CSet starting regions and time stamps.
115 // Their validity is dependent on the GC timestamp.
116 clear_cset_start_regions();
117 }
118
119 inline void G1CollectedHeap::increment_gc_time_stamp() {
120 ++_gc_time_stamp;
121 OrderAccess::fence();
122 }
123
124 inline void G1CollectedHeap::old_set_remove(HeapRegion* hr) {
125 _old_set.remove(hr);
126 }
127
128 inline bool G1CollectedHeap::obj_in_cs(oop obj) {
129 HeapRegion* r = _hrm.addr_to_region((HeapWord*) obj);
130 return r != NULL && r->in_collection_set();
131 }
132
133 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size,
134 uint* gc_count_before_ret,
135 uint* gclocker_retry_count_ret) {
136 assert_heap_not_locked_and_not_at_safepoint();
137 assert(!is_humongous(word_size), "attempt_allocation() should not "
138 "be called for humongous allocation requests");
139
140 AllocationContext_t context = AllocationContext::current();
141 HeapWord* result = _allocator->mutator_alloc_region(context)->attempt_allocation(word_size,
142 false /* bot_updates */);
143 if (result == NULL) {
144 result = attempt_allocation_slow(word_size,
145 context,
146 gc_count_before_ret,
147 gclocker_retry_count_ret);
148 }
149 assert_heap_not_locked();
150 if (result != NULL) {
151 dirty_young_block(result, word_size);
152 }
153 return result;
154 }
155
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