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annotate src/share/vm/oops/instanceClassLoaderKlass.hpp @ 6862:8a5ea0a9ccc4

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7127708: G1: change task num types from int to uint in concurrent mark Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich. Reviewed-by: johnc Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
author johnc
date Sat, 06 Oct 2012 01:17:44 -0700
parents aed758eda82a
children db9981fd3124
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1 /*
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
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26 #define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
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27
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28 #include "oops/instanceKlass.hpp"
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29
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30 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
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31 // not add any field. It is added to walk the dependencies for the class loader
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32 // key that this class loader points to. This is how the loader_data graph is
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33 // walked and dependant class loaders are kept alive. I thought we walked
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34 // the list later?
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35
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36 class InstanceClassLoaderKlass: public InstanceKlass {
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37 friend class VMStructs;
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38 friend class InstanceKlass;
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39
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40 // Constructor
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41 InstanceClassLoaderKlass(int vtable_len, int itable_len, int static_field_size, int nonstatic_oop_map_size, ReferenceType rt, AccessFlags access_flags, bool is_anonymous)
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42 : InstanceKlass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt, access_flags, is_anonymous) {}
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43
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44 public:
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45 virtual bool oop_is_instanceClassLoader() const { return true; }
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46
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47 InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
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48
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49 // Iterators
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50 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
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51 return oop_oop_iterate_v(obj, blk);
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52 }
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53 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
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54 return oop_oop_iterate_v_m(obj, blk, mr);
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55 }
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56
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57 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
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58 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
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59 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, MemRegion mr);
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60
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61 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
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62 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_DECL)
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63
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64 #ifndef SERIALGC
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65 #define InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \
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66 int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk);
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67
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68 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
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69 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceClassLoaderKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
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70 #endif // !SERIALGC
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71
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72 // Garbage collection
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73 void oop_follow_contents(oop obj);
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74
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75 // Parallel Scavenge and Parallel Old
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76 PARALLEL_GC_DECLS
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77 };
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78
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79 #endif // SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP