src/hotspot/share/gc/g1/g1FullGCOopClosures.hpp
author stefank
Sat, 26 May 2018 06:59:49 +0200
changeset 50752 9d62da00bf15
parent 49827 a4672513d6e3
child 50800 6da12aa23b88
permissions -rw-r--r--
8204540: Automatic oop closure devirtualization Reviewed-by: kbarrett, eosterlund
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     1
/*
49607
acffe6ff3ae7 8180415: Rebuild remembered sets during the concurrent cycle
tschatzl
parents: 47885
diff changeset
     2
 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     4
 *
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     7
 * published by the Free Software Foundation.
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     8
 *
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    13
 * accompanied this code).
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    14
 *
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    18
 *
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    21
 * questions.
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    22
 *
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    23
 */
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    24
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    25
#ifndef SHARE_GC_G1_G1FULLGCOOPCLOSURES_HPP
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    26
#define SHARE_GC_G1_G1FULLGCOOPCLOSURES_HPP
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    27
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    28
#include "memory/iterator.hpp"
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    29
#include "memory/universe.hpp"
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    30
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    31
class G1CollectedHeap;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    32
class G1FullCollector;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    33
class G1CMBitMap;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    34
class G1FullGCMarker;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    35
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    36
// Below are closures used by the G1 Full GC.
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    37
class G1IsAliveClosure : public BoolObjectClosure {
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    38
  G1CMBitMap* _bitmap;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    39
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    40
public:
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    41
  G1IsAliveClosure(G1CMBitMap* bitmap) : _bitmap(bitmap) { }
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    42
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    43
  virtual bool do_object_b(oop p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    44
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    45
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    46
class G1FullKeepAliveClosure: public OopClosure {
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    47
  G1FullGCMarker* _marker;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    48
  template <class T>
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    49
  inline void do_oop_work(T* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    50
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    51
public:
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    52
  G1FullKeepAliveClosure(G1FullGCMarker* pm) : _marker(pm) { }
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    53
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    54
  virtual void do_oop(oop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    55
  virtual void do_oop(narrowOop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    56
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    57
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
    58
class G1MarkAndPushClosure : public OopIterateClosure {
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    59
  G1FullGCMarker* _marker;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    60
  uint _worker_id;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    61
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    62
public:
49827
a4672513d6e3 8201646: Introduce ReferenceDiscoverer interface
pliden
parents: 49607
diff changeset
    63
  G1MarkAndPushClosure(uint worker, G1FullGCMarker* marker, ReferenceDiscoverer* ref) :
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    64
    _marker(marker),
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    65
    _worker_id(worker),
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
    66
    OopIterateClosure(ref) { }
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    67
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
    68
  template <class T> inline void do_oop_work(T* p);
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    69
  virtual void do_oop(oop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    70
  virtual void do_oop(narrowOop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    71
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    72
  virtual bool do_metadata();
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    73
  virtual void do_klass(Klass* k);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    74
  virtual void do_cld(ClassLoaderData* cld);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    75
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    76
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
    77
class G1AdjustClosure : public BasicOopIterateClosure {
49607
acffe6ff3ae7 8180415: Rebuild remembered sets during the concurrent cycle
tschatzl
parents: 47885
diff changeset
    78
  template <class T> static inline void adjust_pointer(T* p);
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    79
public:
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
    80
  template <class T> void do_oop_work(T* p) { adjust_pointer(p); }
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    81
  virtual void do_oop(oop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    82
  virtual void do_oop(narrowOop* p);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    83
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    84
  virtual ReferenceIterationMode reference_iteration_mode() { return DO_FIELDS; }
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    85
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    86
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    87
class G1VerifyOopClosure: public OopClosure {
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    88
private:
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    89
  G1CollectedHeap* _g1h;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    90
  bool             _failures;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    91
  oop              _containing_obj;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    92
  VerifyOption     _verify_option;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    93
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    94
public:
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    95
  int _cc;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    96
  G1VerifyOopClosure(VerifyOption option);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    97
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    98
  void set_containing_obj(oop obj) {
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
    99
    _containing_obj = obj;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   100
  }
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   101
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   102
  bool failures() { return _failures; }
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   103
  void print_object(outputStream* out, oop obj);
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   104
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
   105
  template <class T> void do_oop_work(T* p);
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   106
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
   107
  void do_oop(oop* p)       { do_oop_work(p); }
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 49827
diff changeset
   108
  void do_oop(narrowOop* p) { do_oop_work(p); }
47885
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   109
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   110
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   111
class G1FollowStackClosure: public VoidClosure {
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   112
  G1FullGCMarker* _marker;
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   113
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   114
public:
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   115
  G1FollowStackClosure(G1FullGCMarker* marker) : _marker(marker) {}
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   116
  virtual void do_void();
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   117
};
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   118
5caa1d5f74c1 8186571: Implementation: JEP 307: Parallel Full GC for G1
sjohanss
parents:
diff changeset
   119
#endif // SHARE_GC_G1_G1FULLGCOOPCLOSURES_HPP