1 /*
2 * Copyright (c) 2001, 2010, 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 *
27
28 #include "gc_implementation/shared/vmGCOperations.hpp"
29
30 // VM_operations for the G1 collector.
31 // VM_GC_Operation:
32 // - VM_CGC_Operation
33 // - VM_G1CollectFull
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)
47 : VM_GC_Operation(gc_count_before),
48 _word_size(word_size), _result(NULL), _pause_succeeded(false) { }
49 HeapWord* result() { return _result; }
50 bool pause_succeeded() { return _pause_succeeded; }
51 };
52
53 class VM_G1CollectFull: public VM_GC_Operation {
54 public:
55 VM_G1CollectFull(unsigned int gc_count_before,
56 unsigned int full_gc_count_before,
57 GCCause::Cause cause)
58 : VM_GC_Operation(gc_count_before, full_gc_count_before) {
59 _gc_cause = cause;
60 }
61 virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
62 virtual void doit();
63 virtual const char* name() const {
64 return "full garbage-first collection";
65 }
66 };
67
68 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest {
69 public:
70 VM_G1CollectForAllocation(unsigned int gc_count_before,
71 size_t word_size);
72 virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
73 virtual void doit();
74 virtual const char* name() const {
75 return "garbage-first collection to satisfy allocation";
76 }
77 };
78
79 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest {
80 private:
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1 /*
2 * Copyright (c) 2001, 2011, 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 *
27
28 #include "gc_implementation/shared/vmGCOperations.hpp"
29
30 // VM_operations for the G1 collector.
31 // VM_GC_Operation:
32 // - VM_CGC_Operation
33 // - VM_G1CollectFull
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)
47 : VM_GC_Operation(gc_count_before, GCCause::_allocation_failure),
48 _word_size(word_size), _result(NULL), _pause_succeeded(false) { }
49 HeapWord* result() { return _result; }
50 bool pause_succeeded() { return _pause_succeeded; }
51 };
52
53 class VM_G1CollectFull: public VM_GC_Operation {
54 public:
55 VM_G1CollectFull(unsigned int gc_count_before,
56 unsigned int full_gc_count_before,
57 GCCause::Cause cause)
58 : VM_GC_Operation(gc_count_before, cause, full_gc_count_before) { }
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
66 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest {
67 public:
68 VM_G1CollectForAllocation(unsigned int gc_count_before,
69 size_t word_size);
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
77 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest {
78 private:
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