1 /*
2 * Copyright (c) 2000, 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 *
107 // allocation request that failed in the youngest generation that should
108 // have handled it (including collection, expansion, etc.)
109 HeapWord* satisfy_failed_allocation(size_t size, bool is_tlab);
110
111 // Callback from VM_GenCollectFull operation.
112 // Perform a full collection of the first max_level+1 generations.
113 virtual void do_full_collection(bool clear_all_soft_refs);
114 void do_full_collection(bool clear_all_soft_refs, int max_level);
115
116 // Does the "cause" of GC indicate that
117 // we absolutely __must__ clear soft refs?
118 bool must_clear_all_soft_refs();
119
120 public:
121 GenCollectedHeap(GenCollectorPolicy *policy);
122
123 GCStats* gc_stats(int level) const;
124
125 // Returns JNI_OK on success
126 virtual jint initialize();
127 char* allocate(size_t alignment, size_t* _total_reserved, ReservedSpace* heap_rs);
128
129 // Does operations required after initialization has been done.
130 void post_initialize();
131
132 // Initialize ("weak") refs processing support
133 virtual void ref_processing_init();
134
135 virtual CollectedHeap::Name kind() const {
136 return CollectedHeap::GenCollectedHeap;
137 }
138
139 // The generational collector policy.
140 GenCollectorPolicy* gen_policy() const { return _gen_policy; }
141 virtual CollectorPolicy* collector_policy() const { return (CollectorPolicy*) gen_policy(); }
142
143 // Adaptive size policy
144 virtual AdaptiveSizePolicy* size_policy() {
145 return gen_policy()->size_policy();
146 }
147
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1 /*
2 * Copyright (c) 2000, 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 *
107 // allocation request that failed in the youngest generation that should
108 // have handled it (including collection, expansion, etc.)
109 HeapWord* satisfy_failed_allocation(size_t size, bool is_tlab);
110
111 // Callback from VM_GenCollectFull operation.
112 // Perform a full collection of the first max_level+1 generations.
113 virtual void do_full_collection(bool clear_all_soft_refs);
114 void do_full_collection(bool clear_all_soft_refs, int max_level);
115
116 // Does the "cause" of GC indicate that
117 // we absolutely __must__ clear soft refs?
118 bool must_clear_all_soft_refs();
119
120 public:
121 GenCollectedHeap(GenCollectorPolicy *policy);
122
123 GCStats* gc_stats(int level) const;
124
125 // Returns JNI_OK on success
126 virtual jint initialize();
127
128 // Reserve aligned space for the heap as needed by the contained generations.
129 char* allocate(size_t alignment, ReservedSpace* heap_rs);
130
131 // Does operations required after initialization has been done.
132 void post_initialize();
133
134 // Initialize ("weak") refs processing support
135 virtual void ref_processing_init();
136
137 virtual CollectedHeap::Name kind() const {
138 return CollectedHeap::GenCollectedHeap;
139 }
140
141 // The generational collector policy.
142 GenCollectorPolicy* gen_policy() const { return _gen_policy; }
143 virtual CollectorPolicy* collector_policy() const { return (CollectorPolicy*) gen_policy(); }
144
145 // Adaptive size policy
146 virtual AdaptiveSizePolicy* size_policy() {
147 return gen_policy()->size_policy();
148 }
149
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