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1 /*
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2 * Copyright 1997-2006 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 constantPoolKlass is the klass of a constantPoolOop
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26
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27 class constantPoolKlass : public arrayKlass {
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28 public:
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29 // Dispatched klass operations
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30 bool oop_is_constantPool() const { return true; }
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31 int oop_size(oop obj) const;
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32 int klass_oop_size() const { return object_size(); }
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33
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34 // Allocation
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35 DEFINE_ALLOCATE_PERMANENT(constantPoolKlass);
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36 constantPoolOop allocate(int length, TRAPS);
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37 static klassOop create_klass(TRAPS);
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38
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39 // Casting from klassOop
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40 static constantPoolKlass* cast(klassOop k) {
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41 assert(k->klass_part()->oop_is_constantPool(), "cast to constantPoolKlass");
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42 return (constantPoolKlass*) k->klass_part();
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43 }
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44
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45 // Sizing
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46 static int header_size() { return oopDesc::header_size() + sizeof(constantPoolKlass)/HeapWordSize; }
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47 int object_size() const { return arrayKlass::object_size(header_size()); }
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48
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49 // Garbage collection
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50 void oop_follow_contents(oop obj);
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51 int oop_adjust_pointers(oop obj);
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52
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53 // Parallel Scavenge and Parallel Old
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54 PARALLEL_GC_DECLS
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55
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56 // Iterators
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57 int oop_oop_iterate(oop obj, OopClosure* blk);
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58 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
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59
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60 #ifndef PRODUCT
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61 public:
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62 // Printing
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63 void oop_print_on(oop obj, outputStream* st);
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64 #endif
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65
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66 public:
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67 // Verification
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68 const char* internal_name() const;
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69 void oop_verify_on(oop obj, outputStream* st);
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70 // tells whether obj is partially constructed (gc during class loading)
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71 bool oop_partially_loaded(oop obj) const;
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72 void oop_set_partially_loaded(oop obj);
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73 #ifndef PRODUCT
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74 // Compile the world support
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75 static void preload_and_initialize_all_classes(oop constant_pool, TRAPS);
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76 #endif
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77 };
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