Mercurial > hg > truffle
annotate src/share/vm/services/management.hpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | 1d1603768966 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, 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; | |
| 52 | |
|
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6990754: Use native memory and reference counting to implement SymbolTable
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53 static klassOop load_and_initialize_klass(Symbol* sh, TRAPS); |
| 0 | 54 |
| 55 public: | |
| 56 static void init(); | |
| 57 static void initialize(TRAPS); | |
| 58 | |
| 59 static jlong ticks_to_ms(jlong ticks); | |
| 60 static jlong timestamp(); | |
| 61 | |
| 62 static void oops_do(OopClosure* f); | |
| 63 static void* get_jmm_interface(int version); | |
| 64 static void get_optional_support(jmmOptionalSupport* support); | |
| 65 | |
| 66 static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); | |
| 67 | |
| 68 static void record_vm_startup_time(jlong begin, jlong duration); | |
| 69 static void record_vm_init_completed() { | |
| 70 // Initialize the timestamp to get the current time | |
| 71 _vm_init_done_time->set_value(os::javaTimeMillis()); | |
| 72 | |
| 73 // Update the timestamp to the vm init done time | |
| 74 _stamp.update(); | |
| 75 } | |
| 76 | |
| 77 static jlong vm_init_done_time() { | |
| 78 return _vm_init_done_time->get_value(); | |
| 79 } | |
| 80 | |
| 81 // methods to return a klassOop. | |
| 82 static klassOop java_lang_management_ThreadInfo_klass(TRAPS); | |
| 83 static klassOop java_lang_management_MemoryUsage_klass(TRAPS); | |
| 84 static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); | |
| 85 static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); | |
| 86 static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); | |
| 87 static klassOop sun_management_Sensor_klass(TRAPS); | |
| 88 static klassOop sun_management_ManagementFactory_klass(TRAPS); | |
| 89 | |
| 90 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); | |
| 91 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); | |
| 92 }; | |
| 93 | |
| 94 class TraceVmCreationTime : public StackObj { | |
| 95 private: | |
| 96 TimeStamp _timer; | |
| 97 jlong _begin_time; | |
| 98 | |
| 99 public: | |
| 100 TraceVmCreationTime() {} | |
| 101 ~TraceVmCreationTime() {} | |
| 102 | |
| 103 void start() | |
| 104 { _timer.update_to(0); _begin_time = os::javaTimeMillis(); } | |
| 105 | |
| 106 /** | |
| 107 * Only call this if initialization completes successfully; it will | |
| 108 * crash if PerfMemory_exit() has already been called (usually by | |
| 109 * os::shutdown() when there was an initialization failure). | |
| 110 */ | |
| 111 void end() | |
| 112 { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } | |
| 113 | |
| 114 }; | |
| 1972 | 115 |
| 116 #endif // SHARE_VM_SERVICES_MANAGEMENT_HPP |