1 /*
   2  * Copyright (c) 1998, 2006, 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  */
  24 
  25 class CMSIsAliveClosure;
  26 
  27 // a compiledICHolderKlass is the klass of a compiledICHolderOop
  28 
  29 class compiledICHolderKlass : public Klass {
  30   friend class VMStructs;
  31  private:
  32   juint    _alloc_size;        // allocation profiling support
  33  public:
  34   // Testing
  35   bool oop_is_compiledICHolder() const { return true; }
  36 
  37   // Allocation
  38   DEFINE_ALLOCATE_PERMANENT(compiledICHolderKlass);
  39   compiledICHolderOop allocate(TRAPS);
  40   static klassOop create_klass(TRAPS);
  41 
  42   // Sizing
  43   int oop_size(oop obj) const;
  44   int klass_oop_size() const     { return object_size(); }
  45 
  46   // Casting from klassOop
  47   static compiledICHolderKlass* cast(klassOop k) {
  48     assert(k->klass_part()->oop_is_compiledICHolder(), "cast to compiledICHolderKlass");
  49     return (compiledICHolderKlass*) k->klass_part();
  50   }
  51 
  52   // Sizing
  53   static int header_size()       { return oopDesc::header_size() + sizeof(compiledICHolderKlass)/HeapWordSize; }
  54   int object_size() const        { return align_object_size(header_size()); }
  55 
  56   // Garbage collection
  57   void oop_follow_contents(oop obj);
  58   int  oop_adjust_pointers(oop obj);
  59 
  60   // Parallel Scavenge and Parallel Old
  61   PARALLEL_GC_DECLS
  62 
  63   // Allocation profiling support
  64   juint alloc_size() const              { return _alloc_size; }
  65   void set_alloc_size(juint n)          { _alloc_size = n; }
  66 
  67   // Iterators
  68   int  oop_oop_iterate(oop obj, OopClosure* blk);
  69   int  oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
  70 
  71   // Printing
  72   void oop_print_value_on(oop obj, outputStream* st);
  73   void oop_print_on      (oop obj, outputStream* st);
  74 
  75   // Verification
  76   const char* internal_name() const;
  77   void oop_verify_on(oop obj, outputStream* st);
  78 
  79 };