Mercurial > hg > truffle
annotate src/share/vm/services/management.hpp @ 5274:e72dd6533eb9
documented importance of nmethod::_graal_compiled_method wrt code unloading and GC
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 23 Apr 2012 15:42:30 +0200 |
parents | 2e0ef19fc891 |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2011, 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 |
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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 | |
1972 | 25 #ifndef SHARE_VM_SERVICES_MANAGEMENT_HPP |
26 #define SHARE_VM_SERVICES_MANAGEMENT_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "runtime/handles.hpp" | |
30 #include "runtime/timer.hpp" | |
31 #include "services/jmm.h" | |
32 | |
0 | 33 class OopClosure; |
34 class ThreadSnapshot; | |
35 | |
36 class Management : public AllStatic { | |
37 private: | |
38 static PerfVariable* _begin_vm_creation_time; | |
39 static PerfVariable* _end_vm_creation_time; | |
40 static PerfVariable* _vm_init_done_time; | |
41 static jmmOptionalSupport _optional_support; | |
42 static TimeStamp _stamp; // Timestamp since vm init done time | |
43 | |
44 // Management klasses | |
45 static klassOop _sensor_klass; | |
46 static klassOop _threadInfo_klass; | |
47 static klassOop _memoryUsage_klass; | |
48 static klassOop _memoryPoolMXBean_klass; | |
49 static klassOop _memoryManagerMXBean_klass; | |
50 static klassOop _garbageCollectorMXBean_klass; | |
51 static klassOop _managementFactory_klass; | |
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52 static klassOop _garbageCollectorImpl_klass; |
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53 static klassOop _gcInfo_klass; |
0 | 54 |
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55 static klassOop load_and_initialize_klass(Symbol* sh, TRAPS); |
0 | 56 |
57 public: | |
58 static void init(); | |
59 static void initialize(TRAPS); | |
60 | |
61 static jlong ticks_to_ms(jlong ticks); | |
62 static jlong timestamp(); | |
63 | |
64 static void oops_do(OopClosure* f); | |
65 static void* get_jmm_interface(int version); | |
66 static void get_optional_support(jmmOptionalSupport* support); | |
67 | |
68 static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); | |
69 | |
70 static void record_vm_startup_time(jlong begin, jlong duration); | |
71 static void record_vm_init_completed() { | |
72 // Initialize the timestamp to get the current time | |
73 _vm_init_done_time->set_value(os::javaTimeMillis()); | |
74 | |
75 // Update the timestamp to the vm init done time | |
76 _stamp.update(); | |
77 } | |
78 | |
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79 static jlong begin_vm_creation_time() { |
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80 return _begin_vm_creation_time->get_value(); |
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81 } |
0 | 82 static jlong vm_init_done_time() { |
83 return _vm_init_done_time->get_value(); | |
84 } | |
85 | |
86 // methods to return a klassOop. | |
87 static klassOop java_lang_management_ThreadInfo_klass(TRAPS); | |
88 static klassOop java_lang_management_MemoryUsage_klass(TRAPS); | |
89 static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); | |
90 static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); | |
91 static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); | |
92 static klassOop sun_management_Sensor_klass(TRAPS); | |
93 static klassOop sun_management_ManagementFactory_klass(TRAPS); | |
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94 static klassOop sun_management_GarbageCollectorImpl_klass(TRAPS); |
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95 static klassOop com_sun_management_GcInfo_klass(TRAPS); |
0 | 96 |
97 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); | |
98 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); | |
99 }; | |
100 | |
101 class TraceVmCreationTime : public StackObj { | |
102 private: | |
103 TimeStamp _timer; | |
104 jlong _begin_time; | |
105 | |
106 public: | |
107 TraceVmCreationTime() {} | |
108 ~TraceVmCreationTime() {} | |
109 | |
110 void start() | |
111 { _timer.update_to(0); _begin_time = os::javaTimeMillis(); } | |
112 | |
113 /** | |
114 * Only call this if initialization completes successfully; it will | |
115 * crash if PerfMemory_exit() has already been called (usually by | |
116 * os::shutdown() when there was an initialization failure). | |
117 */ | |
118 void end() | |
119 { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } | |
120 | |
121 }; | |
1972 | 122 |
123 #endif // SHARE_VM_SERVICES_MANAGEMENT_HPP |