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src/hotspot/share/gc/parallel/psCardTable.cpp

8224665: Parallel GC: Use WorkGang (7: remove task manager)

0 /*                                                                                                                         
1  * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.                                            
2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.                                                           
3  *                                                                                                                         
4  * This code is free software; you can redistribute it and/or modify it                                                    
5  * under the terms of the GNU General Public License version 2 only, as                                                    
6  * published by the Free Software Foundation.                                                                              
7  *                                                                                                                         
8  * This code is distributed in the hope that it will be useful, but WITHOUT                                                
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or                                                   
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License                                                   
11  * version 2 for more details (a copy is included in the LICENSE file that                                                 
12  * accompanied this code).                                                                                                 
13  *                                                                                                                         
14  * You should have received a copy of the GNU General Public License version                                               
15  * 2 along with this work; if not, write to the Free Software Foundation,                                                  
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.                                                           
17  *                                                                                                                         
18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA                                                 
19  * or visit www.oracle.com if you need additional information or have any                                                  
20  * questions.                                                                                                              
21  *                                                                                                                         
22  */                                                                                                                        
23 
24 #include "precompiled.hpp"                                                                                                 
25 #include "gc/parallel/gcTaskManager.hpp"                                                                                   
26 #include "gc/parallel/objectStartArray.inline.hpp"                                                                         
27 #include "gc/parallel/parallelScavengeHeap.inline.hpp"                                                                     
28 #include "gc/parallel/psCardTable.hpp"                                                                                     
29 #include "gc/parallel/psPromotionManager.inline.hpp"                                                                       
30 #include "gc/parallel/psScavenge.inline.hpp"                                                                               
31 #include "gc/parallel/psYoungGen.hpp"                                                                                      
32 #include "memory/iterator.inline.hpp"                                                                                      
33 #include "oops/access.inline.hpp"                                                                                          
34 #include "oops/oop.inline.hpp"                                                                                             
35 #include "runtime/prefetch.inline.hpp"                                                                                     
36 #include "utilities/align.hpp"                                                                                             
37 
38 // Checks an individual oop for missing precise marks. Mark                                                                
39 // may be either dirty or newgen.                                                                                          
40 class CheckForUnmarkedOops : public BasicOopIterateClosure {                                                               
41  private:                                                                                                                  
42   PSYoungGen*  _young_gen;                                                                                                 
43   PSCardTable* _card_table;                                                                                                
44   HeapWord*    _unmarked_addr;                                                                                             

0 /*
1  * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3  *
4  * This code is free software; you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 2 only, as
6  * published by the Free Software Foundation.
7  *
8  * This code is distributed in the hope that it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
11  * version 2 for more details (a copy is included in the LICENSE file that
12  * accompanied this code).
13  *
14  * You should have received a copy of the GNU General Public License version
15  * 2 along with this work; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19  * or visit www.oracle.com if you need additional information or have any
20  * questions.
21  *
22  */
23 
24 #include "precompiled.hpp"

25 #include "gc/parallel/objectStartArray.inline.hpp"
26 #include "gc/parallel/parallelScavengeHeap.inline.hpp"
27 #include "gc/parallel/psCardTable.hpp"
28 #include "gc/parallel/psPromotionManager.inline.hpp"
29 #include "gc/parallel/psScavenge.inline.hpp"
30 #include "gc/parallel/psYoungGen.hpp"
31 #include "memory/iterator.inline.hpp"
32 #include "oops/access.inline.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "runtime/prefetch.inline.hpp"
35 #include "utilities/align.hpp"
36 
37 // Checks an individual oop for missing precise marks. Mark
38 // may be either dirty or newgen.
39 class CheckForUnmarkedOops : public BasicOopIterateClosure {
40  private:
41   PSYoungGen*  _young_gen;
42   PSCardTable* _card_table;
43   HeapWord*    _unmarked_addr;
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