1 /*
2 * Copyright (c) 2002, 2013, 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_PARALLELSCAVENGE_PSSCAVENGE_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSSCAVENGE_HPP
27
28 #include "gc_implementation/parallelScavenge/cardTableExtension.hpp"
29 #include "gc_implementation/parallelScavenge/psVirtualspace.hpp"
30 #include "gc_implementation/shared/collectorCounters.hpp"
31 #include "gc_implementation/shared/gcTrace.hpp"
32 #include "memory/allocation.hpp"
33 #include "oops/oop.hpp"
34 #include "utilities/stack.hpp"
35
36 class GCTaskManager;
37 class GCTaskQueue;
38 class OopStack;
39 class ReferenceProcessor;
40 class ParallelScavengeHeap;
41 class ParallelScavengeTracer;
42 class PSIsAliveClosure;
43 class PSRefProcTaskExecutor;
44 class STWGCTimer;
45
46 class PSScavenge: AllStatic {
47 friend class PSIsAliveClosure;
48 friend class PSKeepAliveClosure;
49 friend class PSPromotionManager;
50
51 enum ScavengeSkippedCause {
146
147 static void copy_and_push_safe_barrier_from_klass(PSPromotionManager* pm, oop* p);
148
149 // Is an object in the young generation
150 // This assumes that the 'o' is in the heap,
151 // so it only checks one side of the complete predicate.
152
153 inline static bool is_obj_in_young(oop o) {
154 return (HeapWord*)o >= _young_generation_boundary;
155 }
156
157 inline static bool is_obj_in_young(narrowOop o) {
158 return (uintptr_t)o >= _young_generation_boundary_compressed;
159 }
160
161 inline static bool is_obj_in_young(HeapWord* o) {
162 return o >= _young_generation_boundary;
163 }
164 };
165
166 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSSCAVENGE_HPP
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1 /*
2 * Copyright (c) 2002, 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 *
23 */
24
25 #ifndef SHARE_VM_GC_PARALLEL_PSSCAVENGE_HPP
26 #define SHARE_VM_GC_PARALLEL_PSSCAVENGE_HPP
27
28 #include "gc/parallel/cardTableExtension.hpp"
29 #include "gc/parallel/psVirtualspace.hpp"
30 #include "gc/shared/collectorCounters.hpp"
31 #include "gc/shared/gcTrace.hpp"
32 #include "memory/allocation.hpp"
33 #include "oops/oop.hpp"
34 #include "utilities/stack.hpp"
35
36 class GCTaskManager;
37 class GCTaskQueue;
38 class OopStack;
39 class ReferenceProcessor;
40 class ParallelScavengeHeap;
41 class ParallelScavengeTracer;
42 class PSIsAliveClosure;
43 class PSRefProcTaskExecutor;
44 class STWGCTimer;
45
46 class PSScavenge: AllStatic {
47 friend class PSIsAliveClosure;
48 friend class PSKeepAliveClosure;
49 friend class PSPromotionManager;
50
51 enum ScavengeSkippedCause {
146
147 static void copy_and_push_safe_barrier_from_klass(PSPromotionManager* pm, oop* p);
148
149 // Is an object in the young generation
150 // This assumes that the 'o' is in the heap,
151 // so it only checks one side of the complete predicate.
152
153 inline static bool is_obj_in_young(oop o) {
154 return (HeapWord*)o >= _young_generation_boundary;
155 }
156
157 inline static bool is_obj_in_young(narrowOop o) {
158 return (uintptr_t)o >= _young_generation_boundary_compressed;
159 }
160
161 inline static bool is_obj_in_young(HeapWord* o) {
162 return o >= _young_generation_boundary;
163 }
164 };
165
166 #endif // SHARE_VM_GC_PARALLEL_PSSCAVENGE_HPP
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