rev 49674 : 8198285: More consistent Access API for arraycopy

   1 /*
   2  * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
   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
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
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  24 
  25 #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_INLINE_HPP
  26 #define SHARE_VM_OOPS_TYPEARRAYOOP_INLINE_HPP
  27 
  28 #include "oops/access.inline.hpp"
  29 #include "oops/oop.inline.hpp"
  30 #include "oops/arrayOop.inline.hpp"
  31 #include "oops/typeArrayOop.hpp"
  32 
  33 int typeArrayOopDesc::object_size() {
  34   TypeArrayKlass* tk = TypeArrayKlass::cast(klass());
  35   return object_size(tk->layout_helper(), length());
  36 }
  37 
  38 inline jchar*    typeArrayOopDesc::char_base()   const { return (jchar*)   base(T_CHAR); }
  39 inline jboolean* typeArrayOopDesc::bool_base()   const { return (jboolean*)base(T_BOOLEAN); }
  40 inline jbyte*    typeArrayOopDesc::byte_base()   const { return (jbyte*)   base(T_BYTE); }
  41 inline jint*     typeArrayOopDesc::int_base()    const { return (jint*)    base(T_INT); }
  42 inline jlong*    typeArrayOopDesc::long_base()   const { return (jlong*)   base(T_LONG); }
  43 inline jshort*   typeArrayOopDesc::short_base()  const { return (jshort*)  base(T_SHORT); }
  44 inline jfloat*   typeArrayOopDesc::float_base()  const { return (jfloat*)  base(T_FLOAT); }
  45 inline jdouble*  typeArrayOopDesc::double_base() const { return (jdouble*) base(T_DOUBLE); }
  46 
  47 inline jbyte* typeArrayOopDesc::byte_at_addr(int which) const {
  48   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  49   return &byte_base()[which];
  50 }
  51 
  52 inline jboolean* typeArrayOopDesc::bool_at_addr(int which) const {
  53   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  54   return &bool_base()[which];
  55 }
  56 
  57 inline jchar* typeArrayOopDesc::char_at_addr(int which) const {
  58   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  59   return &char_base()[which];
  60 }
  61 
  62 inline jint* typeArrayOopDesc::int_at_addr(int which) const {
  63   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  64   return &int_base()[which];
  65 }
  66 
  67 inline jshort* typeArrayOopDesc::short_at_addr(int which) const {
  68   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  69   return &short_base()[which];
  70 }
  71 
  72 inline jushort* typeArrayOopDesc::ushort_at_addr(int which) const {  // for field descriptor arrays
  73   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  74   return (jushort*) &short_base()[which];
  75 }
  76 
  77 inline jlong* typeArrayOopDesc::long_at_addr(int which) const {
  78   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  79   return &long_base()[which];
  80 }
  81 
  82 inline jfloat* typeArrayOopDesc::float_at_addr(int which) const {
  83   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  84   return &float_base()[which];
  85 }
  86 
  87 inline jdouble* typeArrayOopDesc::double_at_addr(int which) const {
  88   assert(is_within_bounds(which), "index %d out of bounds %d", which, length());
  89   return &double_base()[which];
  90 }
  91 
  92 inline jbyte typeArrayOopDesc::byte_at(int which) const {
  93   ptrdiff_t offset = element_offset<jbyte>(which);
  94   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
  95 }
  96 inline void typeArrayOopDesc::byte_at_put(int which, jbyte contents) {
  97   ptrdiff_t offset = element_offset<jbyte>(which);
  98   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
  99 }
 100 
 101 inline jboolean typeArrayOopDesc::bool_at(int which) const {
 102   ptrdiff_t offset = element_offset<jboolean>(which);
 103   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 104 }
 105 inline void typeArrayOopDesc::bool_at_put(int which, jboolean contents) {
 106   ptrdiff_t offset = element_offset<jboolean>(which);
 107   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, jboolean(contents & 1));
 108 }
 109 
 110 inline jchar typeArrayOopDesc::char_at(int which) const {
 111   ptrdiff_t offset = element_offset<jchar>(which);
 112   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 113 }
 114 inline void typeArrayOopDesc::char_at_put(int which, jchar contents) {
 115   ptrdiff_t offset = element_offset<jchar>(which);
 116   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 117 }
 118 
 119 inline jint typeArrayOopDesc::int_at(int which) const {
 120   ptrdiff_t offset = element_offset<jint>(which);
 121   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 122 }
 123 inline void typeArrayOopDesc::int_at_put(int which, jint contents) {
 124   ptrdiff_t offset = element_offset<jint>(which);
 125   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 126 }
 127 
 128 inline jshort typeArrayOopDesc::short_at(int which) const {
 129   ptrdiff_t offset = element_offset<jshort>(which);
 130   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 131 }
 132 inline void typeArrayOopDesc::short_at_put(int which, jshort contents) {
 133   ptrdiff_t offset = element_offset<jshort>(which);
 134   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 135 }
 136 
 137 inline jushort typeArrayOopDesc::ushort_at(int which) const {
 138   ptrdiff_t offset = element_offset<jushort>(which);
 139   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 140 }
 141 inline void typeArrayOopDesc::ushort_at_put(int which, jushort contents) {
 142   ptrdiff_t offset = element_offset<jushort>(which);
 143   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 144 }
 145 
 146 inline jlong typeArrayOopDesc::long_at(int which) const {
 147   ptrdiff_t offset = element_offset<jlong>(which);
 148   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 149 }
 150 inline void typeArrayOopDesc::long_at_put(int which, jlong contents) {
 151   ptrdiff_t offset = element_offset<jlong>(which);
 152   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 153 }
 154 
 155 inline jfloat typeArrayOopDesc::float_at(int which) const {
 156   ptrdiff_t offset = element_offset<jfloat>(which);
 157   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 158 }
 159 inline void typeArrayOopDesc::float_at_put(int which, jfloat contents) {
 160   ptrdiff_t offset = element_offset<jfloat>(which);
 161   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 162 }
 163 
 164 inline jdouble typeArrayOopDesc::double_at(int which) const {
 165   ptrdiff_t offset = element_offset<jdouble>(which);
 166   return HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 167 }
 168 inline void typeArrayOopDesc::double_at_put(int which, jdouble contents) {
 169   ptrdiff_t offset = element_offset<jdouble>(which);
 170   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 171 }
 172 
 173 inline jbyte typeArrayOopDesc::byte_at_acquire(int which) const {
 174   ptrdiff_t offset = element_offset<jbyte>(which);
 175   return HeapAccess<MO_ACQUIRE | IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 176 }
 177 inline void typeArrayOopDesc::release_byte_at_put(int which, jbyte contents) {
 178   ptrdiff_t offset = element_offset<jbyte>(which);
 179   HeapAccess<MO_RELEASE | IN_HEAP_ARRAY>::store_at(as_oop(), offset, contents);
 180 }
 181 
 182 // Java thinks Symbol arrays are just arrays of either long or int, since
 183 // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate
 184 // casting
 185 #ifdef _LP64
 186 inline Symbol* typeArrayOopDesc::symbol_at(int which) const {
 187   ptrdiff_t offset = element_offset<jlong>(which);
 188   return (Symbol*)(jlong) HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 189 }
 190 inline void typeArrayOopDesc::symbol_at_put(int which, Symbol* contents) {
 191   ptrdiff_t offset = element_offset<jlong>(which);
 192   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, (jlong)contents);
 193 }
 194 #else
 195 inline Symbol* typeArrayOopDesc::symbol_at(int which) const {
 196   ptrdiff_t offset = element_offset<jint>(which);
 197   return (Symbol*)(jint) HeapAccess<IN_HEAP_ARRAY>::load_at(as_oop(), offset);
 198 }
 199 inline void typeArrayOopDesc::symbol_at_put(int which, Symbol* contents) {
 200   ptrdiff_t offset = element_offset<jint>(which);
 201   HeapAccess<IN_HEAP_ARRAY>::store_at(as_oop(), offset, (jint)contents);
 202 }
 203 #endif // _LP64
 204 
 205 
 206 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_INLINE_HPP
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