1 /*
2 * Copyright (c) 2015, 2017, 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 *
32 class G1ParScanThreadState;
33
34 class G1RootClosures : public CHeapObj<mtGC> {
35 public:
36 virtual ~G1RootClosures() {}
37
38 // Closures to process raw oops in the root set.
39 virtual OopClosure* weak_oops() = 0;
40 virtual OopClosure* strong_oops() = 0;
41
42 // Closures to process CLDs in the root set.
43 virtual CLDClosure* weak_clds() = 0;
44 virtual CLDClosure* strong_clds() = 0;
45
46 // Applied to code blobs reachable as strong roots.
47 virtual CodeBlobClosure* strong_codeblobs() = 0;
48 };
49
50 class G1EvacuationRootClosures : public G1RootClosures {
51 public:
52 // Flush any buffered state and deferred processing
53 virtual void flush() = 0;
54 virtual double closure_app_seconds() = 0;
55
56 // Applied to the weakly reachable CLDs when all strongly reachable
57 // CLDs are guaranteed to have been processed.
58 virtual CLDClosure* second_pass_weak_clds() = 0;
59
60 // Get a raw oop closure for processing oops, bypassing the flushing above.
61 virtual OopClosure* raw_strong_oops() = 0;
62
63 // Applied to code blobs treated as weak roots.
64 virtual CodeBlobClosure* weak_codeblobs() = 0;
65
66 // Is this closure used for tracing metadata?
67 virtual bool trace_metadata() = 0;
68
69 static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
70 };
71
72 #endif // SHARE_VM_GC_G1_G1ROOTCLOSURESET_HPP
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1 /*
2 * Copyright (c) 2015, 2018, 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 *
32 class G1ParScanThreadState;
33
34 class G1RootClosures : public CHeapObj<mtGC> {
35 public:
36 virtual ~G1RootClosures() {}
37
38 // Closures to process raw oops in the root set.
39 virtual OopClosure* weak_oops() = 0;
40 virtual OopClosure* strong_oops() = 0;
41
42 // Closures to process CLDs in the root set.
43 virtual CLDClosure* weak_clds() = 0;
44 virtual CLDClosure* strong_clds() = 0;
45
46 // Applied to code blobs reachable as strong roots.
47 virtual CodeBlobClosure* strong_codeblobs() = 0;
48 };
49
50 class G1EvacuationRootClosures : public G1RootClosures {
51 public:
52 // Applied to the weakly reachable CLDs when all strongly reachable
53 // CLDs are guaranteed to have been processed.
54 virtual CLDClosure* second_pass_weak_clds() = 0;
55
56 // Get a raw oop closure for processing oops, bypassing the flushing above.
57 virtual OopClosure* raw_strong_oops() = 0;
58
59 // Applied to code blobs treated as weak roots.
60 virtual CodeBlobClosure* weak_codeblobs() = 0;
61
62 // Is this closure used for tracing metadata?
63 virtual bool trace_metadata() = 0;
64
65 static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
66 };
67
68 #endif // SHARE_VM_GC_G1_G1ROOTCLOSURESET_HPP
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