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annotate src/share/vm/services/management.hpp @ 10215:31a4e55f8c9d

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8004095: Add support for JMX interface to Diagnostic Framework and Commands Reviewed-by: acorn, sla
author fparain
date Fri, 03 May 2013 05:05:31 -0700
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1 /*
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2 * Copyright (c) 2003, 2013, 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
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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 #ifndef SHARE_VM_SERVICES_MANAGEMENT_HPP
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26 #define SHARE_VM_SERVICES_MANAGEMENT_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "runtime/handles.hpp"
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30 #include "runtime/timer.hpp"
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31 #include "services/jmm.h"
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32
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33 class OopClosure;
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34 class ThreadSnapshot;
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35
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36 class Management : public AllStatic {
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37 private:
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38 static PerfVariable* _begin_vm_creation_time;
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39 static PerfVariable* _end_vm_creation_time;
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40 static PerfVariable* _vm_init_done_time;
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41 static jmmOptionalSupport _optional_support;
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42 static TimeStamp _stamp; // Timestamp since vm init done time
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43
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44 // Management klasses
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45 static Klass* _sensor_klass;
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46 static Klass* _threadInfo_klass;
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47 static Klass* _memoryUsage_klass;
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48 static Klass* _memoryPoolMXBean_klass;
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49 static Klass* _memoryManagerMXBean_klass;
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50 static Klass* _garbageCollectorMXBean_klass;
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51 static Klass* _managementFactory_klass;
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52 static Klass* _garbageCollectorImpl_klass;
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53 static Klass* _diagnosticCommandImpl_klass;
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54 static Klass* _managementFactoryHelper_klass;
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55 static Klass* _gcInfo_klass;
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56
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57 static Klass* load_and_initialize_klass(Symbol* sh, TRAPS);
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58
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59 public:
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60 static void init();
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61 static void initialize(TRAPS);
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62
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63 static jlong ticks_to_ms(jlong ticks) NOT_MANAGEMENT_RETURN_(0L);
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64 static jlong timestamp() NOT_MANAGEMENT_RETURN_(0L);
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65
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66 static void oops_do(OopClosure* f) NOT_MANAGEMENT_RETURN;
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67 static void* get_jmm_interface(int version);
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68 static void get_optional_support(jmmOptionalSupport* support);
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69
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70 static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array);
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71
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72 static void record_vm_startup_time(jlong begin, jlong duration)
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73 NOT_MANAGEMENT_RETURN;
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74 static void record_vm_init_completed() {
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75 // Initialize the timestamp to get the current time
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76 _vm_init_done_time->set_value(os::javaTimeMillis());
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77
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78 // Update the timestamp to the vm init done time
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79 _stamp.update();
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80 }
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81
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82 static jlong begin_vm_creation_time() {
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83 return _begin_vm_creation_time->get_value();
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84 }
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85 static jlong vm_init_done_time() {
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86 return _vm_init_done_time->get_value();
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87 }
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88
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89 // methods to return a Klass*.
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90 static Klass* java_lang_management_ThreadInfo_klass(TRAPS);
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91 static Klass* java_lang_management_MemoryUsage_klass(TRAPS)
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92 NOT_MANAGEMENT_RETURN_(NULL);
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93 static Klass* java_lang_management_MemoryPoolMXBean_klass(TRAPS);
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94 static Klass* java_lang_management_MemoryManagerMXBean_klass(TRAPS);
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95 static Klass* java_lang_management_GarbageCollectorMXBean_klass(TRAPS);
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96 static Klass* sun_management_Sensor_klass(TRAPS)
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97 NOT_MANAGEMENT_RETURN_(NULL);
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98 static Klass* sun_management_ManagementFactory_klass(TRAPS)
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99 NOT_MANAGEMENT_RETURN_(NULL);
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100 static Klass* sun_management_GarbageCollectorImpl_klass(TRAPS)
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101 NOT_MANAGEMENT_RETURN_(NULL);
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102 static Klass* com_sun_management_GcInfo_klass(TRAPS)
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103 NOT_MANAGEMENT_RETURN_(NULL);
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104 static Klass* sun_management_DiagnosticCommandImpl_klass(TRAPS)
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105 NOT_MANAGEMENT_RETURN_(NULL);
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106 static Klass* sun_management_ManagementFactoryHelper_klass(TRAPS)
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107 NOT_MANAGEMENT_RETURN_(NULL);
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108
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109 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS);
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110 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS);
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111 };
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112
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113 class TraceVmCreationTime : public StackObj {
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114 private:
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115 TimeStamp _timer;
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116 jlong _begin_time;
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117
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118 public:
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119 TraceVmCreationTime() {}
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120 ~TraceVmCreationTime() {}
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121
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122 void start()
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123 { _timer.update_to(0); _begin_time = os::javaTimeMillis(); }
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124
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125 /**
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126 * Only call this if initialization completes successfully; it will
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127 * crash if PerfMemory_exit() has already been called (usually by
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128 * os::shutdown() when there was an initialization failure).
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129 */
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130 void end()
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131 { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); }
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132
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133 };
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134
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135 #endif // SHARE_VM_SERVICES_MANAGEMENT_HPP