Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/vm_operations_g1.hpp @ 4155:394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 21 Dec 2011 11:25:27 +0100 |
| parents | db89aa49298f |
| children | 64bf7c8270cb |
| rev | line source |
|---|---|
| 342 | 1 /* |
| 2225 | 2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
| 342 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP | |
| 27 | |
| 28 #include "gc_implementation/shared/vmGCOperations.hpp" | |
| 29 | |
| 342 | 30 // VM_operations for the G1 collector. |
| 31 // VM_GC_Operation: | |
| 32 // - VM_CGC_Operation | |
| 33 // - VM_G1CollectFull | |
| 1973 | 34 // - VM_G1OperationWithAllocRequest |
| 35 // - VM_G1CollectForAllocation | |
| 36 // - VM_G1IncCollectionPause | |
| 37 | |
| 38 class VM_G1OperationWithAllocRequest: public VM_GC_Operation { | |
| 39 protected: | |
| 40 size_t _word_size; | |
| 41 HeapWord* _result; | |
| 42 bool _pause_succeeded; | |
| 43 | |
| 44 public: | |
| 45 VM_G1OperationWithAllocRequest(unsigned int gc_count_before, | |
| 46 size_t word_size) | |
| 2225 | 47 : VM_GC_Operation(gc_count_before, GCCause::_allocation_failure), |
| 1973 | 48 _word_size(word_size), _result(NULL), _pause_succeeded(false) { } |
| 49 HeapWord* result() { return _result; } | |
| 50 bool pause_succeeded() { return _pause_succeeded; } | |
| 51 }; | |
| 342 | 52 |
| 53 class VM_G1CollectFull: public VM_GC_Operation { | |
| 1973 | 54 public: |
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55 VM_G1CollectFull(unsigned int gc_count_before, |
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56 unsigned int full_gc_count_before, |
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57 GCCause::Cause cause) |
| 2225 | 58 : VM_GC_Operation(gc_count_before, cause, full_gc_count_before) { } |
| 342 | 59 virtual VMOp_Type type() const { return VMOp_G1CollectFull; } |
| 60 virtual void doit(); | |
| 61 virtual const char* name() const { | |
| 62 return "full garbage-first collection"; | |
| 63 } | |
| 64 }; | |
| 65 | |
| 1973 | 66 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest { |
| 67 public: | |
| 68 VM_G1CollectForAllocation(unsigned int gc_count_before, | |
| 69 size_t word_size); | |
| 342 | 70 virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } |
| 71 virtual void doit(); | |
| 72 virtual const char* name() const { | |
| 73 return "garbage-first collection to satisfy allocation"; | |
| 74 } | |
| 75 }; | |
| 76 | |
| 1973 | 77 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest { |
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78 private: |
| 1973 | 79 bool _should_initiate_conc_mark; |
| 80 double _target_pause_time_ms; | |
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81 unsigned int _full_collections_completed_before; |
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82 public: |
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83 VM_G1IncCollectionPause(unsigned int gc_count_before, |
| 1973 | 84 size_t word_size, |
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85 bool should_initiate_conc_mark, |
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86 double target_pause_time_ms, |
| 1973 | 87 GCCause::Cause gc_cause); |
| 342 | 88 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; } |
| 89 virtual void doit(); | |
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90 virtual void doit_epilogue(); |
| 342 | 91 virtual const char* name() const { |
| 92 return "garbage-first incremental collection pause"; | |
| 93 } | |
| 94 }; | |
| 95 | |
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96 // Concurrent GC stop-the-world operations such as remark and cleanup; |
| 342 | 97 // consider sharing these with CMS's counterparts. |
| 98 class VM_CGC_Operation: public VM_Operation { | |
| 99 VoidClosure* _cl; | |
| 100 const char* _printGCMessage; | |
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101 |
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102 protected: |
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103 // java.lang.ref.Reference support |
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104 void acquire_pending_list_lock(); |
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105 void release_and_notify_pending_list_lock(); |
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106 |
| 1973 | 107 public: |
| 108 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) | |
| 109 : _cl(cl), _printGCMessage(printGCMsg) { } | |
| 342 | 110 virtual VMOp_Type type() const { return VMOp_CGC_Operation; } |
| 111 virtual void doit(); | |
| 112 virtual bool doit_prologue(); | |
| 113 virtual void doit_epilogue(); | |
| 114 virtual const char* name() const { | |
| 115 return "concurrent gc"; | |
| 116 } | |
| 117 }; | |
| 1972 | 118 |
| 119 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP |