1 /*
2 * Copyright (c) 2001, 2015, 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 *
23 */
24
25 #ifndef SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
26 #define SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
27
28 #include "gc/g1/g1AllocationContext.hpp"
29 #include "gc/shared/gcId.hpp"
30 #include "gc/shared/vmGCOperations.hpp"
31
32 // VM_operations for the G1 collector.
33 // VM_GC_Operation:
34 // - VM_CGC_Operation
35 // - VM_G1CollectFull
36 // - VM_G1OperationWithAllocRequest
37 // - VM_G1CollectForAllocation
38 // - VM_G1IncCollectionPause
39
40 class VM_G1OperationWithAllocRequest : public VM_CollectForAllocation {
41 protected:
42 bool _pause_succeeded;
43 AllocationContext_t _allocation_context;
44
45 public:
46 VM_G1OperationWithAllocRequest(uint gc_count_before,
47 size_t word_size,
48 GCCause::Cause gc_cause)
49 : VM_CollectForAllocation(word_size, gc_count_before, gc_cause),
87 VM_G1IncCollectionPause(uint gc_count_before,
88 size_t word_size,
89 bool should_initiate_conc_mark,
90 double target_pause_time_ms,
91 GCCause::Cause gc_cause);
92 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
93 virtual bool doit_prologue();
94 virtual void doit();
95 virtual void doit_epilogue();
96 virtual const char* name() const {
97 return "garbage-first incremental collection pause";
98 }
99 bool should_retry_gc() const { return _should_retry_gc; }
100 };
101
102 // Concurrent GC stop-the-world operations such as remark and cleanup;
103 // consider sharing these with CMS's counterparts.
104 class VM_CGC_Operation: public VM_Operation {
105 VoidClosure* _cl;
106 const char* _printGCMessage;
107 bool _needs_pll;
108 uint _gc_id;
109
110 protected:
111 // java.lang.ref.Reference support
112 void acquire_pending_list_lock();
113 void release_and_notify_pending_list_lock();
114
115 public:
116 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg, bool needs_pll)
117 : _cl(cl), _printGCMessage(printGCMsg), _needs_pll(needs_pll), _gc_id(GCId::current()) { }
118 virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
119 virtual void doit();
120 virtual bool doit_prologue();
121 virtual void doit_epilogue();
122 virtual const char* name() const {
123 return "concurrent gc";
124 }
125 };
126
127 #endif // SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
|
1 /*
2 * Copyright (c) 2001, 2016, 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 *
23 */
24
25 #ifndef SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
26 #define SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
27
28 #include "gc/g1/g1AllocationContext.hpp"
29 #include "gc/shared/gcId.hpp"
30 #include "gc/shared/referencePendingListLocker.hpp"
31 #include "gc/shared/vmGCOperations.hpp"
32
33 // VM_operations for the G1 collector.
34 // VM_GC_Operation:
35 // - VM_CGC_Operation
36 // - VM_G1CollectFull
37 // - VM_G1OperationWithAllocRequest
38 // - VM_G1CollectForAllocation
39 // - VM_G1IncCollectionPause
40
41 class VM_G1OperationWithAllocRequest : public VM_CollectForAllocation {
42 protected:
43 bool _pause_succeeded;
44 AllocationContext_t _allocation_context;
45
46 public:
47 VM_G1OperationWithAllocRequest(uint gc_count_before,
48 size_t word_size,
49 GCCause::Cause gc_cause)
50 : VM_CollectForAllocation(word_size, gc_count_before, gc_cause),
88 VM_G1IncCollectionPause(uint gc_count_before,
89 size_t word_size,
90 bool should_initiate_conc_mark,
91 double target_pause_time_ms,
92 GCCause::Cause gc_cause);
93 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
94 virtual bool doit_prologue();
95 virtual void doit();
96 virtual void doit_epilogue();
97 virtual const char* name() const {
98 return "garbage-first incremental collection pause";
99 }
100 bool should_retry_gc() const { return _should_retry_gc; }
101 };
102
103 // Concurrent GC stop-the-world operations such as remark and cleanup;
104 // consider sharing these with CMS's counterparts.
105 class VM_CGC_Operation: public VM_Operation {
106 VoidClosure* _cl;
107 const char* _printGCMessage;
108 bool _needs_pending_list_lock;
109 ReferencePendingListLocker _pending_list_locker;
110 uint _gc_id;
111
112 protected:
113 // java.lang.ref.Reference support
114 void acquire_pending_list_lock();
115 void release_and_notify_pending_list_lock();
116
117 public:
118 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg, bool needs_pending_list_lock)
119 : _cl(cl), _printGCMessage(printGCMsg), _needs_pending_list_lock(needs_pending_list_lock), _gc_id(GCId::current()) {}
120 virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
121 virtual void doit();
122 virtual bool doit_prologue();
123 virtual void doit_epilogue();
124 virtual const char* name() const {
125 return "concurrent gc";
126 }
127 };
128
129 #endif // SHARE_VM_GC_G1_VM_OPERATIONS_G1_HPP
|