107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*
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* Copyright 2003-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any 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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};
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