1 /*
   2  * Copyright (c) 1998, 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
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  24 
  25 #ifndef SHARE_VM_OOPS_COMPILEDICHOLDERKLASS_HPP
  26 #define SHARE_VM_OOPS_COMPILEDICHOLDERKLASS_HPP
  27 
  28 #include "oops/compiledICHolderOop.hpp"
  29 #include "oops/klass.hpp"
  30 #include "oops/methodOop.hpp"
  31 
  32 class CMSIsAliveClosure;
  33 
  34 // a compiledICHolderKlass is the klass of a compiledICHolderOop
  35 
  36 class compiledICHolderKlass : public Klass {
  37   friend class VMStructs;
  38  private:
  39   juint    _alloc_size;        // allocation profiling support
  40  public:
  41   // Testing
  42   bool oop_is_compiledICHolder() const { return true; }
  43 
  44   // Allocation
  45   DEFINE_ALLOCATE_PERMANENT(compiledICHolderKlass);
  46   compiledICHolderOop allocate(TRAPS);
  47   static klassOop create_klass(TRAPS);
  48 
  49   // Sizing
  50   int oop_size(oop obj) const;
  51   int klass_oop_size() const     { return object_size(); }
  52 
  53   // Casting from klassOop
  54   static compiledICHolderKlass* cast(klassOop k) {
  55     assert(k->klass_part()->oop_is_compiledICHolder(), "cast to compiledICHolderKlass");
  56     return (compiledICHolderKlass*) k->klass_part();
  57   }
  58 
  59   // Sizing
  60   static int header_size()       { return oopDesc::header_size() + sizeof(compiledICHolderKlass)/HeapWordSize; }
  61   int object_size() const        { return align_object_size(header_size()); }
  62 
  63   // Garbage collection
  64   void oop_follow_contents(oop obj);
  65   int  oop_adjust_pointers(oop obj);
  66 
  67   // Parallel Scavenge and Parallel Old
  68   PARALLEL_GC_DECLS
  69 
  70   // Allocation profiling support
  71   juint alloc_size() const              { return _alloc_size; }
  72   void set_alloc_size(juint n)          { _alloc_size = n; }
  73 
  74   // Iterators
  75   int  oop_oop_iterate(oop obj, OopClosure* blk);
  76   int  oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
  77 
  78   // Printing
  79   void oop_print_value_on(oop obj, outputStream* st);
  80   void oop_print_on      (oop obj, outputStream* st);
  81 
  82   // Verification
  83   const char* internal_name() const;
  84   void oop_verify_on(oop obj, outputStream* st);
  85 
  86 };
  87 
  88 #endif // SHARE_VM_OOPS_COMPILEDICHOLDERKLASS_HPP