jdk8-mips64-public/hotspot: src/share/vm/services/management.hpp@4102b59539ce

8005012: Add WB APIs to better support NMT testing
Summary: Add WB API functions to enable better NMT testing
Reviewed-by: dholmes, zgu

     1 /*

     2  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_SERVICES_MANAGEMENT_HPP

    26 #define SHARE_VM_SERVICES_MANAGEMENT_HPP

    28 #include "memory/allocation.hpp"

    29 #include "runtime/handles.hpp"

    30 #include "runtime/timer.hpp"

    31 #include "services/jmm.h"

    33 class OopClosure;

    34 class ThreadSnapshot;

    36 class Management : public AllStatic {

    37 private:

    38   static PerfVariable*      _begin_vm_creation_time;

    39   static PerfVariable*      _end_vm_creation_time;

    40   static PerfVariable*      _vm_init_done_time;

    41   static jmmOptionalSupport _optional_support;

    42   static TimeStamp          _stamp; // Timestamp since vm init done time

    44   // Management klasses

    45   static Klass*             _sensor_klass;

    46   static Klass*             _threadInfo_klass;

    47   static Klass*             _memoryUsage_klass;

    48   static Klass*             _memoryPoolMXBean_klass;

    49   static Klass*             _memoryManagerMXBean_klass;

    50   static Klass*             _garbageCollectorMXBean_klass;

    51   static Klass*             _managementFactory_klass;

    52   static Klass*             _garbageCollectorImpl_klass;

    53   static Klass*             _gcInfo_klass;

    55   static Klass* load_and_initialize_klass(Symbol* sh, TRAPS);

    57 public:

    58   static void init();

    59   static void initialize(TRAPS);

    61   static jlong ticks_to_ms(jlong ticks) NOT_MANAGEMENT_RETURN_(0L);

    62   static jlong timestamp() NOT_MANAGEMENT_RETURN_(0L);

    64   static void  oops_do(OopClosure* f) NOT_MANAGEMENT_RETURN;

    65   static void* get_jmm_interface(int version);

    66   static void  get_optional_support(jmmOptionalSupport* support);

    68   static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array);

    70   static void  record_vm_startup_time(jlong begin, jlong duration)

    71       NOT_MANAGEMENT_RETURN;

    72   static void  record_vm_init_completed() {

    73     // Initialize the timestamp to get the current time

    74     _vm_init_done_time->set_value(os::javaTimeMillis());

    76     // Update the timestamp to the vm init done time

    77     _stamp.update();

    78   }

    80   static jlong begin_vm_creation_time() {

    81     return _begin_vm_creation_time->get_value();

    82   }

    83   static jlong vm_init_done_time() {

    84     return _vm_init_done_time->get_value();

    85   }

    87   // methods to return a Klass*.

    88   static Klass* java_lang_management_ThreadInfo_klass(TRAPS);

    89   static Klass* java_lang_management_MemoryUsage_klass(TRAPS)

    90       NOT_MANAGEMENT_RETURN_(NULL);

    91   static Klass* java_lang_management_MemoryPoolMXBean_klass(TRAPS);

    92   static Klass* java_lang_management_MemoryManagerMXBean_klass(TRAPS);

    93   static Klass* java_lang_management_GarbageCollectorMXBean_klass(TRAPS);

    94   static Klass* sun_management_Sensor_klass(TRAPS)

    95       NOT_MANAGEMENT_RETURN_(NULL);

    96   static Klass* sun_management_ManagementFactory_klass(TRAPS)

    97       NOT_MANAGEMENT_RETURN_(NULL);

    98   static Klass* sun_management_GarbageCollectorImpl_klass(TRAPS)

    99       NOT_MANAGEMENT_RETURN_(NULL);

   100   static Klass* com_sun_management_GcInfo_klass(TRAPS)

   101       NOT_MANAGEMENT_RETURN_(NULL);

   103   static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS);

   104   static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS);

   105 };

   107 class TraceVmCreationTime : public StackObj {

   108 private:

   109   TimeStamp _timer;

   110   jlong     _begin_time;

   112 public:

   113   TraceVmCreationTime() {}

   114   ~TraceVmCreationTime() {}

   116   void start()

   117   { _timer.update_to(0); _begin_time = os::javaTimeMillis(); }

   119   /**

   120    * Only call this if initialization completes successfully; it will

   121    * crash if PerfMemory_exit() has already been called (usually by

   122    * os::shutdown() when there was an initialization failure).

   123    */

   124   void end()

   125   { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); }

   127 };

   129 #endif // SHARE_VM_SERVICES_MANAGEMENT_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/services/management.hpp@4102b59539ce

src/share/vm/services/management.hpp