Mercurial > hg > graal-compiler
view src/share/vm/services/management.hpp @ 900:9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
Summary: developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens
Reviewed-by: kvn, never, jrose, twisti
author | cfang |
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date | Fri, 31 Jul 2009 17:12:33 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * 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()); } };