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annotate src/share/vm/oops/typeArrayOop.hpp @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Tue, 05 Apr 2011 14:12:31 -0700 |
| parents | b92c45f2bc75 |
| children | f08d439fab8c |
| rev | line source |
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| 0 | 1 /* |
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7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
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2 * Copyright (c) 1997, 2011, 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_TYPEARRAYOOP_HPP |
| 26 #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP | |
| 27 | |
| 28 #include "oops/arrayOop.hpp" | |
| 29 #include "oops/typeArrayKlass.hpp" | |
| 30 #ifdef TARGET_OS_ARCH_linux_x86 | |
| 31 # include "orderAccess_linux_x86.inline.hpp" | |
| 32 #endif | |
| 33 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 34 # include "orderAccess_linux_sparc.inline.hpp" | |
| 35 #endif | |
| 36 #ifdef TARGET_OS_ARCH_linux_zero | |
| 37 # include "orderAccess_linux_zero.inline.hpp" | |
| 38 #endif | |
| 39 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 40 # include "orderAccess_solaris_x86.inline.hpp" | |
| 41 #endif | |
| 42 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 43 # include "orderAccess_solaris_sparc.inline.hpp" | |
| 44 #endif | |
| 45 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 46 # include "orderAccess_windows_x86.inline.hpp" | |
| 47 #endif | |
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48 #ifdef TARGET_OS_ARCH_linux_arm |
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49 # include "orderAccess_linux_arm.inline.hpp" |
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50 #endif |
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51 #ifdef TARGET_OS_ARCH_linux_ppc |
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52 # include "orderAccess_linux_ppc.inline.hpp" |
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53 #endif |
| 1972 | 54 |
| 0 | 55 // A typeArrayOop is an array containing basic types (non oop elements). |
| 56 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs} | |
| 57 #include <limits.h> | |
| 58 | |
| 59 class typeArrayOopDesc : public arrayOopDesc { | |
| 60 protected: | |
| 61 jchar* char_base() const { return (jchar*) base(T_CHAR); } | |
| 62 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); } | |
| 63 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); } | |
| 64 jint* int_base() const { return (jint*) base(T_INT); } | |
| 65 jlong* long_base() const { return (jlong*) base(T_LONG); } | |
| 66 jshort* short_base() const { return (jshort*) base(T_SHORT); } | |
| 67 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); } | |
| 68 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); } | |
| 69 | |
| 70 friend class typeArrayKlass; | |
| 71 | |
| 72 public: | |
| 73 jbyte* byte_at_addr(int which) const { | |
| 74 assert(is_within_bounds(which), "index out of bounds"); | |
| 75 return &byte_base()[which]; | |
| 76 } | |
| 77 | |
| 78 jboolean* bool_at_addr(int which) const { | |
| 79 assert(is_within_bounds(which), "index out of bounds"); | |
| 80 return &bool_base()[which]; | |
| 81 } | |
| 82 | |
| 83 jchar* char_at_addr(int which) const { | |
| 84 assert(is_within_bounds(which), "index out of bounds"); | |
| 85 return &char_base()[which]; | |
| 86 } | |
| 87 | |
| 88 jint* int_at_addr(int which) const { | |
| 89 assert(is_within_bounds(which), "index out of bounds"); | |
| 90 return &int_base()[which]; | |
| 91 } | |
| 92 | |
| 93 jshort* short_at_addr(int which) const { | |
| 94 assert(is_within_bounds(which), "index out of bounds"); | |
| 95 return &short_base()[which]; | |
| 96 } | |
| 97 | |
| 98 jushort* ushort_at_addr(int which) const { // for field descriptor arrays | |
| 99 assert(is_within_bounds(which), "index out of bounds"); | |
| 100 return (jushort*) &short_base()[which]; | |
| 101 } | |
| 102 | |
| 103 jlong* long_at_addr(int which) const { | |
| 104 assert(is_within_bounds(which), "index out of bounds"); | |
| 105 return &long_base()[which]; | |
| 106 } | |
| 107 | |
| 108 jfloat* float_at_addr(int which) const { | |
| 109 assert(is_within_bounds(which), "index out of bounds"); | |
| 110 return &float_base()[which]; | |
| 111 } | |
| 112 | |
| 113 jdouble* double_at_addr(int which) const { | |
| 114 assert(is_within_bounds(which), "index out of bounds"); | |
| 115 return &double_base()[which]; | |
| 116 } | |
| 117 | |
| 118 jbyte byte_at(int which) const { return *byte_at_addr(which); } | |
| 119 void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } | |
| 120 | |
| 121 jboolean bool_at(int which) const { return *bool_at_addr(which); } | |
| 122 void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } | |
| 123 | |
| 124 jchar char_at(int which) const { return *char_at_addr(which); } | |
| 125 void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } | |
| 126 | |
| 127 jint int_at(int which) const { return *int_at_addr(which); } | |
| 128 void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } | |
| 129 | |
| 130 jshort short_at(int which) const { return *short_at_addr(which); } | |
| 131 void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } | |
| 132 | |
| 133 jushort ushort_at(int which) const { return *ushort_at_addr(which); } | |
| 134 void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } | |
| 135 | |
| 136 jlong long_at(int which) const { return *long_at_addr(which); } | |
| 137 void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } | |
| 138 | |
| 139 jfloat float_at(int which) const { return *float_at_addr(which); } | |
| 140 void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } | |
| 141 | |
| 142 jdouble double_at(int which) const { return *double_at_addr(which); } | |
| 143 void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } | |
| 144 | |
| 145 jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } | |
| 146 void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } | |
| 147 | |
| 148 // Sizing | |
| 149 | |
| 150 // Returns the number of words necessary to hold an array of "len" | |
| 151 // elements each of the given "byte_size". | |
| 152 private: | |
| 153 static int object_size(int lh, int length) { | |
| 154 int instance_header_size = Klass::layout_helper_header_size(lh); | |
| 155 int element_shift = Klass::layout_helper_log2_element_size(lh); | |
| 156 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh)); | |
| 157 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow"); | |
| 158 | |
| 159 julong size_in_bytes = length; | |
| 160 size_in_bytes <<= element_shift; | |
| 161 size_in_bytes += instance_header_size; | |
| 162 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize); | |
| 163 assert(size_in_words <= (julong)max_jint, "no overflow"); | |
| 164 | |
| 165 return align_object_size((intptr_t)size_in_words); | |
| 166 } | |
| 167 | |
| 168 public: | |
| 169 int object_size() { | |
| 170 typeArrayKlass* tk = typeArrayKlass::cast(klass()); | |
| 171 return object_size(tk->layout_helper(), length()); | |
| 172 } | |
| 173 }; | |
| 1972 | 174 |
| 175 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP |