duke@435: /*
duke@435:  * Copyright 2003-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: class OopClosure;
duke@435: class ThreadSnapshot;
duke@435: 
duke@435: class Management : public AllStatic {
duke@435: private:
duke@435:   static PerfVariable*      _begin_vm_creation_time;
duke@435:   static PerfVariable*      _end_vm_creation_time;
duke@435:   static PerfVariable*      _vm_init_done_time;
duke@435:   static jmmOptionalSupport _optional_support;
duke@435:   static TimeStamp          _stamp; // Timestamp since vm init done time
duke@435: 
duke@435:   // Management klasses
duke@435:   static klassOop           _sensor_klass;
duke@435:   static klassOop           _threadInfo_klass;
duke@435:   static klassOop           _memoryUsage_klass;
duke@435:   static klassOop           _memoryPoolMXBean_klass;
duke@435:   static klassOop           _memoryManagerMXBean_klass;
duke@435:   static klassOop           _garbageCollectorMXBean_klass;
duke@435:   static klassOop           _managementFactory_klass;
duke@435: 
duke@435:   static klassOop load_and_initialize_klass(symbolHandle sh, TRAPS);
duke@435: 
duke@435: public:
duke@435:   static void init();
duke@435:   static void initialize(TRAPS);
duke@435: 
duke@435:   static jlong ticks_to_ms(jlong ticks);
duke@435:   static jlong timestamp();
duke@435: 
duke@435:   static void  oops_do(OopClosure* f);
duke@435:   static void* get_jmm_interface(int version);
duke@435:   static void  get_optional_support(jmmOptionalSupport* support);
duke@435: 
duke@435:   static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array);
duke@435: 
duke@435:   static void  record_vm_startup_time(jlong begin, jlong duration);
duke@435:   static void  record_vm_init_completed() {
duke@435:     // Initialize the timestamp to get the current time
duke@435:     _vm_init_done_time->set_value(os::javaTimeMillis());
duke@435: 
duke@435:     // Update the timestamp to the vm init done time
duke@435:     _stamp.update();
duke@435:   }
duke@435: 
duke@435:   static jlong vm_init_done_time() {
duke@435:     return _vm_init_done_time->get_value();
duke@435:   }
duke@435: 
duke@435:   // methods to return a klassOop.
duke@435:   static klassOop java_lang_management_ThreadInfo_klass(TRAPS);
duke@435:   static klassOop java_lang_management_MemoryUsage_klass(TRAPS);
duke@435:   static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS);
duke@435:   static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS);
duke@435:   static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS);
duke@435:   static klassOop sun_management_Sensor_klass(TRAPS);
duke@435:   static klassOop sun_management_ManagementFactory_klass(TRAPS);
duke@435: 
duke@435:   static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS);
duke@435:   static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS);
duke@435: };
duke@435: 
duke@435: class TraceVmCreationTime : public StackObj {
duke@435: private:
duke@435:   TimeStamp _timer;
duke@435:   jlong     _begin_time;
duke@435: 
duke@435: public:
duke@435:   TraceVmCreationTime() {}
duke@435:   ~TraceVmCreationTime() {}
duke@435: 
duke@435:   void start()
duke@435:   { _timer.update_to(0); _begin_time = os::javaTimeMillis(); }
duke@435: 
duke@435:   /**
duke@435:    * Only call this if initialization completes successfully; it will
duke@435:    * crash if PerfMemory_exit() has already been called (usually by
duke@435:    * os::shutdown() when there was an initialization failure).
duke@435:    */
duke@435:   void end()
duke@435:   { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); }
duke@435: 
duke@435: };