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1 /*
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2 * Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // a methodDataKlass is the klass of a methodDataOop
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26
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27 class methodDataKlass : public Klass {
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28 friend class VMStructs;
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29 private:
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30 juint _alloc_size; // allocation profiling support
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31 public:
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32 // Testing
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33 bool oop_is_methodData() const { return true; }
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34
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35 // Allocation
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36 DEFINE_ALLOCATE_PERMANENT(methodDataKlass);
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37 methodDataOop allocate(methodHandle method, TRAPS);
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38 static klassOop create_klass(TRAPS);
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39
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40 // Sizing
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41 int oop_size(oop obj) const;
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42 int klass_oop_size() const { return object_size(); }
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43
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44 // Casting from klassOop
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45 static methodDataKlass* cast(klassOop k) {
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46 assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass");
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47 return (methodDataKlass*) k->klass_part();
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48 }
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49
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50 // Sizing
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51 static int header_size() {
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52 return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize;
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53 }
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54 int object_size() const {
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55 return align_object_size(header_size());
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56 }
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57
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58 // Garbage collection
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59 void oop_follow_contents(oop obj);
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60 int oop_adjust_pointers(oop obj);
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61 bool oop_is_parsable(oop obj) const;
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62
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63 // Parallel Scavenge and Parallel Old
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64 PARALLEL_GC_DECLS
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65
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66 // Allocation profiling support
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67 juint alloc_size() const { return _alloc_size; }
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68 void set_alloc_size(juint n) { _alloc_size = n; }
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69
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70 // Iterators
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71 int oop_oop_iterate(oop obj, OopClosure* blk);
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72 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
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73
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74 #ifndef PRODUCT
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75 public:
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76 // Printing
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77 void oop_print_on (oop obj, outputStream* st);
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78 void oop_print_value_on(oop obj, outputStream* st);
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79 #endif // !PRODUCT
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80
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81 public:
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82 // Verify operations
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83 const char* internal_name() const;
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84 void oop_verify_on(oop obj, outputStream* st);
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85 };
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