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

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/memory/classify.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,92 @@
     1.4 +/*
     1.5 + * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +typedef enum oop_type {
    1.29 +  unknown_type,
    1.30 +  instance_type,
    1.31 +  instanceRef_type,
    1.32 +  objArray_type,
    1.33 +  symbol_type,
    1.34 +  klass_type,
    1.35 +  instanceKlass_type,
    1.36 +  method_type,
    1.37 +  constMethod_type,
    1.38 +  methodData_type,
    1.39 +  constantPool_type,
    1.40 +  constantPoolCache_type,
    1.41 +  typeArray_type,
    1.42 +  compiledICHolder_type,
    1.43 +  number_object_types
    1.44 +} object_type;
    1.45 +
    1.46 +
    1.47 +// Classify objects by type and keep counts.
    1.48 +// Print the count and space taken for each type.
    1.49 +
    1.50 +
    1.51 +class ClassifyObjectClosure : public ObjectClosure {
    1.52 +private:
    1.53 +
    1.54 +  static const char* object_type_name[number_object_types];
    1.55 +
    1.56 +  int total_object_count;
    1.57 +  size_t total_object_size;
    1.58 +  int object_count[number_object_types];
    1.59 +  size_t object_size[number_object_types];
    1.60 +
    1.61 +public:
    1.62 +  ClassifyObjectClosure() { reset(); }
    1.63 +  void reset();
    1.64 +  void do_object(oop obj);
    1.65 +  static object_type classify_object(oop obj, bool count);
    1.66 +  size_t print();
    1.67 +};
    1.68 +
    1.69 +
    1.70 +// Count objects using the alloc_count field in the object's klass
    1.71 +// object.
    1.72 +
    1.73 +class ClassifyInstanceKlassClosure : public ClassifyObjectClosure {
    1.74 +private:
    1.75 +  int total_instances;
    1.76 +public:
    1.77 +  ClassifyInstanceKlassClosure() { reset(); }
    1.78 +  void reset();
    1.79 +  void print();
    1.80 +  void do_object(oop obj);
    1.81 +};
    1.82 +
    1.83 +
    1.84 +// Clear the alloc_count fields in all classes so that the count can be
    1.85 +// restarted.
    1.86 +
    1.87 +class ClearAllocCountClosure : public ObjectClosure {
    1.88 +public:
    1.89 +  void do_object(oop obj) {
    1.90 +    if (obj->is_klass()) {
    1.91 +      Klass* k = Klass::cast((klassOop)obj);
    1.92 +      k->set_alloc_count(0);
    1.93 +    }
    1.94 +  }
    1.95 +};