annotate src/share/vm/services/management.hpp @ 1552:c18cbe5936b8

6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
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date Thu, 27 May 2010 19:08:38 -0700
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1 /*
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2 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. 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 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.
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22 *
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23 */
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24
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25 class OopClosure;
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26 class ThreadSnapshot;
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27
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28 class Management : public AllStatic {
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29 private:
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30 static PerfVariable* _begin_vm_creation_time;
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31 static PerfVariable* _end_vm_creation_time;
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32 static PerfVariable* _vm_init_done_time;
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33 static jmmOptionalSupport _optional_support;
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34 static TimeStamp _stamp; // Timestamp since vm init done time
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35
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36 // Management klasses
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37 static klassOop _sensor_klass;
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38 static klassOop _threadInfo_klass;
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39 static klassOop _memoryUsage_klass;
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40 static klassOop _memoryPoolMXBean_klass;
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41 static klassOop _memoryManagerMXBean_klass;
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42 static klassOop _garbageCollectorMXBean_klass;
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43 static klassOop _managementFactory_klass;
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44
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45 static klassOop load_and_initialize_klass(symbolHandle sh, TRAPS);
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46
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47 public:
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48 static void init();
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49 static void initialize(TRAPS);
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50
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51 static jlong ticks_to_ms(jlong ticks);
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52 static jlong timestamp();
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53
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54 static void oops_do(OopClosure* f);
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55 static void* get_jmm_interface(int version);
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56 static void get_optional_support(jmmOptionalSupport* support);
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57
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58 static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array);
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59
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60 static void record_vm_startup_time(jlong begin, jlong duration);
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61 static void record_vm_init_completed() {
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62 // Initialize the timestamp to get the current time
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63 _vm_init_done_time->set_value(os::javaTimeMillis());
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64
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65 // Update the timestamp to the vm init done time
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66 _stamp.update();
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67 }
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68
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69 static jlong vm_init_done_time() {
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70 return _vm_init_done_time->get_value();
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71 }
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72
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73 // methods to return a klassOop.
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74 static klassOop java_lang_management_ThreadInfo_klass(TRAPS);
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75 static klassOop java_lang_management_MemoryUsage_klass(TRAPS);
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76 static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS);
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77 static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS);
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78 static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS);
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79 static klassOop sun_management_Sensor_klass(TRAPS);
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80 static klassOop sun_management_ManagementFactory_klass(TRAPS);
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81
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82 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS);
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83 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS);
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84 };
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85
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86 class TraceVmCreationTime : public StackObj {
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87 private:
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88 TimeStamp _timer;
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89 jlong _begin_time;
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90
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91 public:
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92 TraceVmCreationTime() {}
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93 ~TraceVmCreationTime() {}
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94
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95 void start()
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96 { _timer.update_to(0); _begin_time = os::javaTimeMillis(); }
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97
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98 /**
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99 * Only call this if initialization completes successfully; it will
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100 * crash if PerfMemory_exit() has already been called (usually by
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101 * os::shutdown() when there was an initialization failure).
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102 */
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103 void end()
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104 { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); }
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105
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106 };