src/share/vm/services/classLoadingService.hpp
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src/share/vm/services/classLoadingService.hpp

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   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  *


  38   static PerfCounter*  _classes_loaded_count;
  39   static PerfCounter*  _classes_unloaded_count;
  40   static PerfCounter*  _classbytes_loaded;
  41   static PerfCounter*  _classbytes_unloaded;
  42 
  43   // Counters for classes loaded from shared archive
  44   static PerfCounter*  _shared_classes_loaded_count;
  45   static PerfCounter*  _shared_classes_unloaded_count;
  46   static PerfCounter*  _shared_classbytes_loaded;
  47   static PerfCounter*  _shared_classbytes_unloaded;
  48 
  49   static PerfVariable* _class_methods_size;
  50 
  51   static size_t compute_class_size(InstanceKlass* k);
  52 
  53 public:
  54   static void init();
  55 
  56   static bool get_verbose() { return TraceClassLoading; }
  57   static bool set_verbose(bool verbose);
  58   static void reset_trace_class_unloading();
  59 
  60   static jlong loaded_class_count() {
  61     return _classes_loaded_count->get_value() + _shared_classes_loaded_count->get_value();
  62   }
  63   static jlong unloaded_class_count() {
  64     return _classes_unloaded_count->get_value() + _shared_classes_unloaded_count->get_value();
  65   }
  66   static jlong loaded_class_bytes() {
  67     if (UsePerfData) {
  68       return _classbytes_loaded->get_value() + _shared_classbytes_loaded->get_value();
  69     } else {
  70       return -1;
  71     }
  72   }
  73   static jlong unloaded_class_bytes() {
  74     if (UsePerfData) {
  75       return _classbytes_unloaded->get_value() + _shared_classbytes_unloaded->get_value();
  76     } else {
  77       return -1;
  78     }


  85     return _shared_classes_unloaded_count->get_value();
  86   }
  87   static jlong loaded_shared_class_bytes() {
  88     if (UsePerfData) {
  89       return _shared_classbytes_loaded->get_value();
  90     } else {
  91       return -1;
  92     }
  93   }
  94   static jlong unloaded_shared_class_bytes() {
  95     if (UsePerfData) {
  96       return _shared_classbytes_unloaded->get_value();
  97     } else {
  98       return -1;
  99     }
 100   }
 101   static jlong class_method_data_size() {
 102     return (UsePerfData ? _class_methods_size->get_value() : -1);
 103   }
 104 
 105   static void notify_class_loaded(InstanceKlass* k, bool shared_class);

 106   // All unloaded classes are non-shared
 107   static void notify_class_unloaded(InstanceKlass* k);
 108   static void add_class_method_size(int size) {

 109     if (UsePerfData) {
 110       _class_methods_size->inc(size);
 111     }

 112   }
 113 };
 114 
 115 // FIXME: make this piece of code to be shared by M&M and JVMTI
 116 class LoadedClassesEnumerator : public StackObj {
 117 private:
 118   static GrowableArray<KlassHandle>* _loaded_classes;
 119   // _current_thread is for creating a KlassHandle with a faster version constructor
 120   static Thread*                     _current_thread;
 121 
 122   GrowableArray<KlassHandle>* _klass_handle_array;
 123 
 124 public:
 125   LoadedClassesEnumerator(Thread* cur_thread);
 126 
 127   int num_loaded_classes()         { return _klass_handle_array->length(); }
 128   KlassHandle get_klass(int index) { return _klass_handle_array->at(index); }
 129 
 130   static void add_loaded_class(Klass* k) {
 131     // FIXME: For now - don't include array klasses
   1 /*
   2  * Copyright (c) 2003, 2010, 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  *


  38   static PerfCounter*  _classes_loaded_count;
  39   static PerfCounter*  _classes_unloaded_count;
  40   static PerfCounter*  _classbytes_loaded;
  41   static PerfCounter*  _classbytes_unloaded;
  42 
  43   // Counters for classes loaded from shared archive
  44   static PerfCounter*  _shared_classes_loaded_count;
  45   static PerfCounter*  _shared_classes_unloaded_count;
  46   static PerfCounter*  _shared_classbytes_loaded;
  47   static PerfCounter*  _shared_classbytes_unloaded;
  48 
  49   static PerfVariable* _class_methods_size;
  50 
  51   static size_t compute_class_size(InstanceKlass* k);
  52 
  53 public:
  54   static void init();
  55 
  56   static bool get_verbose() { return TraceClassLoading; }
  57   static bool set_verbose(bool verbose);
  58   static void reset_trace_class_unloading() NOT_MANAGEMENT_RETURN;
  59 
  60   static jlong loaded_class_count() {
  61     return _classes_loaded_count->get_value() + _shared_classes_loaded_count->get_value();
  62   }
  63   static jlong unloaded_class_count() {
  64     return _classes_unloaded_count->get_value() + _shared_classes_unloaded_count->get_value();
  65   }
  66   static jlong loaded_class_bytes() {
  67     if (UsePerfData) {
  68       return _classbytes_loaded->get_value() + _shared_classbytes_loaded->get_value();
  69     } else {
  70       return -1;
  71     }
  72   }
  73   static jlong unloaded_class_bytes() {
  74     if (UsePerfData) {
  75       return _classbytes_unloaded->get_value() + _shared_classbytes_unloaded->get_value();
  76     } else {
  77       return -1;
  78     }


  85     return _shared_classes_unloaded_count->get_value();
  86   }
  87   static jlong loaded_shared_class_bytes() {
  88     if (UsePerfData) {
  89       return _shared_classbytes_loaded->get_value();
  90     } else {
  91       return -1;
  92     }
  93   }
  94   static jlong unloaded_shared_class_bytes() {
  95     if (UsePerfData) {
  96       return _shared_classbytes_unloaded->get_value();
  97     } else {
  98       return -1;
  99     }
 100   }
 101   static jlong class_method_data_size() {
 102     return (UsePerfData ? _class_methods_size->get_value() : -1);
 103   }
 104 
 105   static void notify_class_loaded(InstanceKlass* k, bool shared_class)
 106       NOT_MANAGEMENT_RETURN;
 107   // All unloaded classes are non-shared
 108   static void notify_class_unloaded(InstanceKlass* k) NOT_MANAGEMENT_RETURN;
 109   static void add_class_method_size(int size) {
 110 #if INCLUDE_MANAGEMENT
 111     if (UsePerfData) {
 112       _class_methods_size->inc(size);
 113     }
 114 #endif // INCLUDE_MANAGEMENT
 115   }
 116 };
 117 
 118 // FIXME: make this piece of code to be shared by M&M and JVMTI
 119 class LoadedClassesEnumerator : public StackObj {
 120 private:
 121   static GrowableArray<KlassHandle>* _loaded_classes;
 122   // _current_thread is for creating a KlassHandle with a faster version constructor
 123   static Thread*                     _current_thread;
 124 
 125   GrowableArray<KlassHandle>* _klass_handle_array;
 126 
 127 public:
 128   LoadedClassesEnumerator(Thread* cur_thread);
 129 
 130   int num_loaded_classes()         { return _klass_handle_array->length(); }
 131   KlassHandle get_klass(int index) { return _klass_handle_array->at(index); }
 132 
 133   static void add_loaded_class(Klass* k) {
 134     // FIXME: For now - don't include array klasses
src/share/vm/services/classLoadingService.hpp
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