vm/oops/dValueArrayKlass.hpp

   1 /* Copyright 1996 LongView Technologies L.L.C. $Revision: 1.1 $ */
   2 /* Copyright (c) 2006, Sun Microsystems, Inc.
   3 All rights reserved.
   4
   5 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
   6 following conditions are met:
   7
   8     * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
   9     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
  10           disclaimer in the documentation and/or other materials provided with the distribution.
  11     * Neither the name of Sun Microsystems nor the names of its contributors may be used to endorse or promote products derived
  12           from this software without specific prior written permission.
  13
  14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
  15 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  16 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  17 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  18 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  19 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
  20
  21
  22 */
  23
  24 class doubleValueArrayKlass: public memOopKlass {
  25  public:
  26   // allocation properties
  27   bool can_inline_allocation() const { return false; }
  28
  29   // Return the oop size for a doubleValueArrayOop
  30   int object_size(int number_of_doubleValues) const {
  31     return   non_indexable_size() + 1
  32            + roundTo(number_of_doubleValues * sizeof(double), oopSize) / oopSize;
  33   }
  34
  35   // creation operations
  36   oop allocateObject();
  37   oop allocateObjectSize(int size);
  38
  39   // creates invocation
  40   klassOop create_subclass(mixinOop mixin, Format format);
  41
  42   static klassOop create_class(klassOop super_class, mixinOop mixin);
  43
  44   // Format
  45   Format format() { return doubleValueArray_klass; }
  46
  47   friend void set_doubleValueArrayKlass_vtbl(Klass* k);
  48
  49   char* name() const { return "doubleValueArray"; }
  50
  51  // ALL FUNCTIONS BELOW THIS POINT ARE DISPATCHED FROM AN OOP
  52  public:
  53   // accessors
  54   int oop_scavenge_contents(oop obj);
  55   int oop_scavenge_tenured_contents(oop obj);
  56
  57   bool oop_verify(oop obj);
  58   void oop_print_value_on(oop obj, outputStream* st);
  59
  60   // iterators
  61   void oop_oop_iterate(oop obj, OopClosure* blk);
  62   void oop_layout_iterate(oop obj, ObjectLayoutClosure* blk);
  63
  64   // Sizing
  65   int oop_header_size() const { return doubleValueArrayOopDesc::header_size(); }
  66   int oop_size(oop obj) const { return object_size(doubleValueArrayOop(obj)->length()); }
  67
  68   // testers
  69   bool oop_is_doubleValueArray() const { return true; }
  70   bool oop_is_indexable() const        { return true; }
  71 };