Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.hpp @ 1656:4e5661ba9d98
6944166: G1: explicit GCs are not always handled correctly
Summary: G1 was not handling explicit GCs correctly in many ways. It does now. See the CR for the list of improvements contained in this changeset.
Reviewed-by: iveresov, ysr, johnc
author | tonyp |
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date | Mon, 28 Jun 2010 14:13:17 -0400 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved. |
0 | 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 |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // Forward declarations of classes defined here. | |
26 class GCTaskThread; | |
27 class GCTaskTimeStamp; | |
28 | |
29 // Declarations of classes referenced in this file via pointer. | |
30 class GCTaskManager; | |
31 | |
32 class GCTaskThread : public WorkerThread { | |
33 private: | |
34 // Instance state. | |
35 GCTaskManager* _manager; // Manager for worker. | |
36 const uint _processor_id; // Which processor the worker is on. | |
37 | |
38 GCTaskTimeStamp* _time_stamps; | |
39 uint _time_stamp_index; | |
40 | |
41 GCTaskTimeStamp* time_stamp_at(uint index); | |
42 | |
43 public: | |
44 // Factory create and destroy methods. | |
45 static GCTaskThread* create(GCTaskManager* manager, | |
46 uint which, | |
47 uint processor_id) { | |
48 return new GCTaskThread(manager, which, processor_id); | |
49 } | |
50 static void destroy(GCTaskThread* manager) { | |
51 if (manager != NULL) { | |
52 delete manager; | |
53 } | |
54 } | |
55 // Methods from Thread. | |
56 bool is_GC_task_thread() const { | |
57 return true; | |
58 } | |
59 virtual void run(); | |
60 // Methods. | |
61 void start(); | |
62 | |
63 void print_task_time_stamps(); | |
64 void print_on(outputStream* st) const; | |
65 void print() const { print_on(tty); } | |
66 | |
67 protected: | |
68 // Constructor. Clients use factory, but there could be subclasses. | |
69 GCTaskThread(GCTaskManager* manager, uint which, uint processor_id); | |
70 // Destructor: virtual destructor because of virtual methods. | |
71 virtual ~GCTaskThread(); | |
72 // Accessors. | |
73 GCTaskManager* manager() const { | |
74 return _manager; | |
75 } | |
76 uint which() const { | |
77 return id(); | |
78 } | |
79 uint processor_id() const { | |
80 return _processor_id; | |
81 } | |
82 }; | |
83 | |
84 class GCTaskTimeStamp : public CHeapObj | |
85 { | |
86 private: | |
87 jlong _entry_time; | |
88 jlong _exit_time; | |
89 char* _name; | |
90 | |
91 public: | |
92 jlong entry_time() { return _entry_time; } | |
93 jlong exit_time() { return _exit_time; } | |
94 const char* name() const { return (const char*)_name; } | |
95 | |
96 void set_entry_time(jlong time) { _entry_time = time; } | |
97 void set_exit_time(jlong time) { _exit_time = time; } | |
98 void set_name(char* name) { _name = name; } | |
99 }; |