Mercurial > hg > graal-compiler
comparison src/share/vm/gc_implementation/g1/vm_operations_g1.hpp @ 342:37f87013dfd8
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
author | ysr |
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date | Thu, 05 Jun 2008 15:57:56 -0700 |
parents | |
children | 96b229c54d1e |
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1 /* | |
2 * Copyright 2001-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // VM_operations for the G1 collector. | |
26 // VM_GC_Operation: | |
27 // - VM_CGC_Operation | |
28 // - VM_G1CollectFull | |
29 // - VM_G1CollectForAllocation | |
30 // - VM_G1IncCollectionPause | |
31 // - VM_G1PopRegionCollectionPause | |
32 | |
33 class VM_G1CollectFull: public VM_GC_Operation { | |
34 private: | |
35 public: | |
36 VM_G1CollectFull(int gc_count_before, | |
37 GCCause::Cause gc_cause) | |
38 : VM_GC_Operation(gc_count_before) | |
39 { | |
40 _gc_cause = gc_cause; | |
41 } | |
42 ~VM_G1CollectFull() {} | |
43 virtual VMOp_Type type() const { return VMOp_G1CollectFull; } | |
44 virtual void doit(); | |
45 virtual const char* name() const { | |
46 return "full garbage-first collection"; | |
47 } | |
48 }; | |
49 | |
50 class VM_G1CollectForAllocation: public VM_GC_Operation { | |
51 private: | |
52 HeapWord* _res; | |
53 size_t _size; // size of object to be allocated | |
54 public: | |
55 VM_G1CollectForAllocation(size_t size, int gc_count_before) | |
56 : VM_GC_Operation(gc_count_before) { | |
57 _size = size; | |
58 _res = NULL; | |
59 } | |
60 ~VM_G1CollectForAllocation() {} | |
61 virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } | |
62 virtual void doit(); | |
63 virtual const char* name() const { | |
64 return "garbage-first collection to satisfy allocation"; | |
65 } | |
66 HeapWord* result() { return _res; } | |
67 }; | |
68 | |
69 class VM_G1IncCollectionPause: public VM_GC_Operation { | |
70 public: | |
71 VM_G1IncCollectionPause(int gc_count_before) : | |
72 VM_GC_Operation(gc_count_before) {} | |
73 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; } | |
74 virtual void doit(); | |
75 virtual const char* name() const { | |
76 return "garbage-first incremental collection pause"; | |
77 } | |
78 }; | |
79 | |
80 class VM_G1PopRegionCollectionPause: public VM_GC_Operation { | |
81 HeapRegion* _pop_region; | |
82 public: | |
83 VM_G1PopRegionCollectionPause(int gc_count_before, HeapRegion* pop_region) : | |
84 VM_GC_Operation(gc_count_before), | |
85 _pop_region(pop_region) | |
86 {} | |
87 virtual VMOp_Type type() const { return VMOp_G1PopRegionCollectionPause; } | |
88 virtual void doit(); | |
89 virtual const char* name() const { | |
90 return "garbage-first popular region collection pause"; | |
91 } | |
92 }; | |
93 | |
94 // Concurrent GC stop-the-world operations such as initial and final mark; | |
95 // consider sharing these with CMS's counterparts. | |
96 class VM_CGC_Operation: public VM_Operation { | |
97 VoidClosure* _cl; | |
98 const char* _printGCMessage; | |
99 public: | |
100 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) : | |
101 _cl(cl), | |
102 _printGCMessage(printGCMsg) | |
103 {} | |
104 | |
105 ~VM_CGC_Operation() {} | |
106 | |
107 virtual VMOp_Type type() const { return VMOp_CGC_Operation; } | |
108 virtual void doit(); | |
109 virtual bool doit_prologue(); | |
110 virtual void doit_epilogue(); | |
111 virtual const char* name() const { | |
112 return "concurrent gc"; | |
113 } | |
114 }; |