Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.hpp@f90c822e73f8 (annotated)
src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.hpp
Wed, 27 Apr 2016 01:25:04 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:25:04 +0800
- changeset 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP |
| aoqi@0 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "runtime/thread.hpp" |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | // Forward declarations of classes defined here. |
| aoqi@0 | 31 | class GCTaskThread; |
| aoqi@0 | 32 | class GCTaskTimeStamp; |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | // Declarations of classes referenced in this file via pointer. |
| aoqi@0 | 35 | class GCTaskManager; |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | class GCTaskThread : public WorkerThread { |
| aoqi@0 | 38 | friend class GCTaskManager; |
| aoqi@0 | 39 | private: |
| aoqi@0 | 40 | // Instance state. |
| aoqi@0 | 41 | GCTaskManager* _manager; // Manager for worker. |
| aoqi@0 | 42 | const uint _processor_id; // Which processor the worker is on. |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | GCTaskTimeStamp* _time_stamps; |
| aoqi@0 | 45 | uint _time_stamp_index; |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | GCTaskTimeStamp* time_stamp_at(uint index); |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | bool _is_working; // True if participating in GC tasks |
| aoqi@0 | 50 | |
| aoqi@0 | 51 | public: |
| aoqi@0 | 52 | // Factory create and destroy methods. |
| aoqi@0 | 53 | static GCTaskThread* create(GCTaskManager* manager, |
| aoqi@0 | 54 | uint which, |
| aoqi@0 | 55 | uint processor_id) { |
| aoqi@0 | 56 | return new GCTaskThread(manager, which, processor_id); |
| aoqi@0 | 57 | } |
| aoqi@0 | 58 | static void destroy(GCTaskThread* manager) { |
| aoqi@0 | 59 | if (manager != NULL) { |
| aoqi@0 | 60 | delete manager; |
| aoqi@0 | 61 | } |
| aoqi@0 | 62 | } |
| aoqi@0 | 63 | // Methods from Thread. |
| aoqi@0 | 64 | bool is_GC_task_thread() const { |
| aoqi@0 | 65 | return true; |
| aoqi@0 | 66 | } |
| aoqi@0 | 67 | virtual void run(); |
| aoqi@0 | 68 | // Methods. |
| aoqi@0 | 69 | void start(); |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | void print_task_time_stamps(); |
| aoqi@0 | 72 | void print_on(outputStream* st) const; |
| aoqi@0 | 73 | void print() const { print_on(tty); } |
| aoqi@0 | 74 | |
| aoqi@0 | 75 | protected: |
| aoqi@0 | 76 | // Constructor. Clients use factory, but there could be subclasses. |
| aoqi@0 | 77 | GCTaskThread(GCTaskManager* manager, uint which, uint processor_id); |
| aoqi@0 | 78 | // Destructor: virtual destructor because of virtual methods. |
| aoqi@0 | 79 | virtual ~GCTaskThread(); |
| aoqi@0 | 80 | // Accessors. |
| aoqi@0 | 81 | GCTaskManager* manager() const { |
| aoqi@0 | 82 | return _manager; |
| aoqi@0 | 83 | } |
| aoqi@0 | 84 | uint which() const { |
| aoqi@0 | 85 | return id(); |
| aoqi@0 | 86 | } |
| aoqi@0 | 87 | uint processor_id() const { |
| aoqi@0 | 88 | return _processor_id; |
| aoqi@0 | 89 | } |
| aoqi@0 | 90 | void set_is_working(bool v) { _is_working = v; } |
| aoqi@0 | 91 | }; |
| aoqi@0 | 92 | |
| aoqi@0 | 93 | class GCTaskTimeStamp : public CHeapObj<mtGC> |
| aoqi@0 | 94 | { |
| aoqi@0 | 95 | private: |
| aoqi@0 | 96 | jlong _entry_time; |
| aoqi@0 | 97 | jlong _exit_time; |
| aoqi@0 | 98 | char* _name; |
| aoqi@0 | 99 | |
| aoqi@0 | 100 | public: |
| aoqi@0 | 101 | jlong entry_time() { return _entry_time; } |
| aoqi@0 | 102 | jlong exit_time() { return _exit_time; } |
| aoqi@0 | 103 | const char* name() const { return (const char*)_name; } |
| aoqi@0 | 104 | |
| aoqi@0 | 105 | void set_entry_time(jlong time) { _entry_time = time; } |
| aoqi@0 | 106 | void set_exit_time(jlong time) { _exit_time = time; } |
| aoqi@0 | 107 | void set_name(char* name) { _name = name; } |
| aoqi@0 | 108 | }; |
| aoqi@0 | 109 | |
| aoqi@0 | 110 | #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP |
