| /* |
| * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| class OopClosure; |
| class ThreadSnapshot; |
| |
| class Management : public AllStatic { |
| private: |
| static PerfVariable* _begin_vm_creation_time; |
| static PerfVariable* _end_vm_creation_time; |
| static PerfVariable* _vm_init_done_time; |
| static jmmOptionalSupport _optional_support; |
| static TimeStamp _stamp; // Timestamp since vm init done time |
| |
| // Management klasses |
| static klassOop _sensor_klass; |
| static klassOop _threadInfo_klass; |
| static klassOop _memoryUsage_klass; |
| static klassOop _memoryPoolMXBean_klass; |
| static klassOop _memoryManagerMXBean_klass; |
| static klassOop _garbageCollectorMXBean_klass; |
| static klassOop _managementFactory_klass; |
| |
| static klassOop load_and_initialize_klass(symbolHandle sh, TRAPS); |
| |
| public: |
| static void init(); |
| static void initialize(TRAPS); |
| |
| static jlong ticks_to_ms(jlong ticks); |
| static jlong timestamp(); |
| |
| static void oops_do(OopClosure* f); |
| static void* get_jmm_interface(int version); |
| static void get_optional_support(jmmOptionalSupport* support); |
| |
| static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); |
| |
| static void record_vm_startup_time(jlong begin, jlong duration); |
| static void record_vm_init_completed() { |
| // Initialize the timestamp to get the current time |
| _vm_init_done_time->set_value(os::javaTimeMillis()); |
| |
| // Update the timestamp to the vm init done time |
| _stamp.update(); |
| } |
| |
| static jlong vm_init_done_time() { |
| return _vm_init_done_time->get_value(); |
| } |
| |
| // methods to return a klassOop. |
| static klassOop java_lang_management_ThreadInfo_klass(TRAPS); |
| static klassOop java_lang_management_MemoryUsage_klass(TRAPS); |
| static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); |
| static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); |
| static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); |
| static klassOop sun_management_Sensor_klass(TRAPS); |
| static klassOop sun_management_ManagementFactory_klass(TRAPS); |
| |
| static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); |
| static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); |
| }; |
| |
| class TraceVmCreationTime : public StackObj { |
| private: |
| TimeStamp _timer; |
| jlong _begin_time; |
| |
| public: |
| TraceVmCreationTime() {} |
| ~TraceVmCreationTime() {} |
| |
| void start() |
| { _timer.update_to(0); _begin_time = os::javaTimeMillis(); } |
| |
| /** |
| * Only call this if initialization completes successfully; it will |
| * crash if PerfMemory_exit() has already been called (usually by |
| * os::shutdown() when there was an initialization failure). |
| */ |
| void end() |
| { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } |
| |
| }; |