author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 1 | 489c9b5090e2 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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class OopClosure; |
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class ThreadSnapshot; |
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class Management : public AllStatic { |
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private: |
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static PerfVariable* _begin_vm_creation_time; |
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static PerfVariable* _end_vm_creation_time; |
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static PerfVariable* _vm_init_done_time; |
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static jmmOptionalSupport _optional_support; |
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static TimeStamp _stamp; // Timestamp since vm init done time |
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// Management klasses |
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static klassOop _sensor_klass; |
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static klassOop _threadInfo_klass; |
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static klassOop _memoryUsage_klass; |
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static klassOop _memoryPoolMXBean_klass; |
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static klassOop _memoryManagerMXBean_klass; |
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static klassOop _garbageCollectorMXBean_klass; |
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static klassOop _managementFactory_klass; |
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static klassOop load_and_initialize_klass(symbolHandle sh, TRAPS); |
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public: |
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static void init(); |
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static void initialize(TRAPS); |
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static jlong ticks_to_ms(jlong ticks); |
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static jlong timestamp(); |
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static void oops_do(OopClosure* f); |
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static void* get_jmm_interface(int version); |
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static void get_optional_support(jmmOptionalSupport* support); |
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static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); |
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static void record_vm_startup_time(jlong begin, jlong duration); |
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static void record_vm_init_completed() { |
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// Initialize the timestamp to get the current time |
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_vm_init_done_time->set_value(os::javaTimeMillis()); |
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// Update the timestamp to the vm init done time |
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_stamp.update(); |
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} |
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static jlong vm_init_done_time() { |
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return _vm_init_done_time->get_value(); |
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} |
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// methods to return a klassOop. |
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static klassOop java_lang_management_ThreadInfo_klass(TRAPS); |
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static klassOop java_lang_management_MemoryUsage_klass(TRAPS); |
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static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); |
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static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); |
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static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); |
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static klassOop sun_management_Sensor_klass(TRAPS); |
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static klassOop sun_management_ManagementFactory_klass(TRAPS); |
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static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); |
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static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); |
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}; |
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class TraceVmCreationTime : public StackObj { |
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private: |
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TimeStamp _timer; |
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jlong _begin_time; |
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public: |
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TraceVmCreationTime() {} |
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~TraceVmCreationTime() {} |
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void start() |
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{ _timer.update_to(0); _begin_time = os::javaTimeMillis(); } |
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/** |
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* Only call this if initialization completes successfully; it will |
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* crash if PerfMemory_exit() has already been called (usually by |
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* os::shutdown() when there was an initialization failure). |
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*/ |
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void end() |
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{ Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } |
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}; |