Mercurial > hg > truffle
annotate src/share/vm/oops/typeArrayKlass.hpp @ 6862:8a5ea0a9ccc4
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 | da91efe96a93 |
| children | d8ce2825b193 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OOPS_TYPEARRAYKLASS_HPP |
| 26 #define SHARE_VM_OOPS_TYPEARRAYKLASS_HPP | |
| 27 | |
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28 #include "classfile/classLoaderData.hpp" |
| 1972 | 29 #include "oops/arrayKlass.hpp" |
| 30 | |
| 0 | 31 // A typeArrayKlass is the klass of a typeArray |
| 32 // It contains the type and size of the elements | |
| 33 | |
| 34 class typeArrayKlass : public arrayKlass { | |
| 35 friend class VMStructs; | |
| 36 private: | |
| 37 jint _max_length; // maximum number of elements allowed in an array | |
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38 |
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39 // Constructor |
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40 typeArrayKlass(BasicType type, Symbol* name); |
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41 static typeArrayKlass* allocate(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS); |
| 0 | 42 public: |
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43 typeArrayKlass() {} // For dummy objects. |
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44 |
| 0 | 45 // instance variables |
| 46 jint max_length() { return _max_length; } | |
| 47 void set_max_length(jint m) { _max_length = m; } | |
| 48 | |
| 49 // testers | |
| 50 bool oop_is_typeArray_slow() const { return true; } | |
| 51 | |
| 52 // klass allocation | |
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53 static typeArrayKlass* create_klass(BasicType type, const char* name_str, |
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54 TRAPS); |
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55 static inline Klass* create_klass(BasicType type, int scale, TRAPS) { |
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56 typeArrayKlass* tak = create_klass(type, external_name(type), CHECK_NULL); |
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57 assert(scale == (1 << tak->log2_element_size()), "scale must check out"); |
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58 return tak; |
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59 } |
| 0 | 60 |
| 61 int oop_size(oop obj) const; | |
| 62 | |
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63 bool compute_is_subtype_of(Klass* k); |
| 0 | 64 |
| 65 // Allocation | |
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66 typeArrayOop allocate_common(int length, bool do_zero, TRAPS); |
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67 typeArrayOop allocate(int length, TRAPS) { return allocate_common(length, true, THREAD); } |
| 0 | 68 oop multi_allocate(int rank, jint* sizes, TRAPS); |
| 69 | |
| 70 // Copying | |
| 71 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS); | |
| 72 | |
| 73 // Iteration | |
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74 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk); |
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75 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr); |
| 0 | 76 |
| 77 // Garbage collection | |
| 78 void oop_follow_contents(oop obj); | |
| 79 int oop_adjust_pointers(oop obj); | |
| 80 | |
| 81 // Parallel Scavenge and Parallel Old | |
| 82 PARALLEL_GC_DECLS | |
| 83 | |
| 84 protected: | |
| 85 // Find n'th dimensional array | |
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86 virtual Klass* array_klass_impl(bool or_null, int n, TRAPS); |
| 0 | 87 |
| 88 // Returns the array class with this class as element type | |
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89 virtual Klass* array_klass_impl(bool or_null, TRAPS); |
| 0 | 90 |
| 91 public: | |
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92 // Casting from Klass* |
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93 static typeArrayKlass* cast(Klass* k) { |
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94 assert(k->oop_is_typeArray(), "cast to typeArrayKlass"); |
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95 return (typeArrayKlass*) k; |
| 0 | 96 } |
| 97 | |
| 98 // Naming | |
| 99 static const char* external_name(BasicType type); | |
| 100 | |
| 101 // Sizing | |
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102 static int header_size() { return sizeof(typeArrayKlass)/HeapWordSize; } |
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103 int size() const { return arrayKlass::static_size(header_size()); } |
| 0 | 104 |
| 105 // Initialization (virtual from Klass) | |
| 106 void initialize(TRAPS); | |
| 107 | |
| 108 public: | |
| 109 // Printing | |
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110 #ifndef PRODUCT |
| 0 | 111 void oop_print_on(oop obj, outputStream* st); |
| 112 #endif | |
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113 |
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114 void print_on(outputStream* st) const; |
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115 void print_value_on(outputStream* st) const; |
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116 |
| 0 | 117 public: |
| 118 const char* internal_name() const; | |
| 119 }; | |
| 1972 | 120 |
| 121 #endif // SHARE_VM_OOPS_TYPEARRAYKLASS_HPP |