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1 /*
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2 * Copyright 2002-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // Forward declarations of classes defined here.
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26 class GCTaskThread;
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27 class GCTaskTimeStamp;
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28
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29 // Declarations of classes referenced in this file via pointer.
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30 class GCTaskManager;
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31
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32 class GCTaskThread : public WorkerThread {
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33 private:
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34 // Instance state.
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35 GCTaskManager* _manager; // Manager for worker.
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36 const uint _processor_id; // Which processor the worker is on.
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37
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38 GCTaskTimeStamp* _time_stamps;
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39 uint _time_stamp_index;
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40
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41 GCTaskTimeStamp* time_stamp_at(uint index);
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42
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43 public:
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44 // Factory create and destroy methods.
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45 static GCTaskThread* create(GCTaskManager* manager,
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46 uint which,
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47 uint processor_id) {
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48 return new GCTaskThread(manager, which, processor_id);
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49 }
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50 static void destroy(GCTaskThread* manager) {
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51 if (manager != NULL) {
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52 delete manager;
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53 }
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54 }
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55 // Methods from Thread.
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56 bool is_GC_task_thread() const {
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57 return true;
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58 }
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59 virtual void run();
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60 // Methods.
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61 void start();
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62
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63 void print_task_time_stamps();
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64 void print_on(outputStream* st) const;
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65 void print() const { print_on(tty); }
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66
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67 protected:
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68 // Constructor. Clients use factory, but there could be subclasses.
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69 GCTaskThread(GCTaskManager* manager, uint which, uint processor_id);
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70 // Destructor: virtual destructor because of virtual methods.
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71 virtual ~GCTaskThread();
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72 // Accessors.
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73 GCTaskManager* manager() const {
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74 return _manager;
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75 }
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76 uint which() const {
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77 return id();
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78 }
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79 uint processor_id() const {
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80 return _processor_id;
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81 }
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82 };
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83
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84 class GCTaskTimeStamp : public CHeapObj
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85 {
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86 private:
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87 jlong _entry_time;
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88 jlong _exit_time;
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89 char* _name;
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90
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91 public:
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92 jlong entry_time() { return _entry_time; }
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93 jlong exit_time() { return _exit_time; }
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94 const char* name() const { return (const char*)_name; }
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95
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96 void set_entry_time(jlong time) { _entry_time = time; }
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97 void set_exit_time(jlong time) { _exit_time = time; }
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98 void set_name(char* name) { _name = name; }
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99 };
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