src/share/vm/oops/typeArrayOop.hpp

Tue, 08 Feb 2011 12:33:19 +0100

author
stefank
date
Tue, 08 Feb 2011 12:33:19 +0100
changeset 2534
e5383553fd4e
parent 2314
f95d63e2154a
child 2508
b92c45f2bc75
permissions
-rw-r--r--

7014851: Remove unused parallel compaction code
Summary: Removed.
Reviewed-by: jcoomes, brutisso

duke@435 1 /*
stefank@2314 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_HPP
stefank@2314 26 #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP
stefank@2314 27
stefank@2314 28 #include "oops/arrayOop.hpp"
stefank@2314 29 #include "oops/typeArrayKlass.hpp"
stefank@2314 30 #ifdef TARGET_OS_ARCH_linux_x86
stefank@2314 31 # include "orderAccess_linux_x86.inline.hpp"
stefank@2314 32 #endif
stefank@2314 33 #ifdef TARGET_OS_ARCH_linux_sparc
stefank@2314 34 # include "orderAccess_linux_sparc.inline.hpp"
stefank@2314 35 #endif
stefank@2314 36 #ifdef TARGET_OS_ARCH_linux_zero
stefank@2314 37 # include "orderAccess_linux_zero.inline.hpp"
stefank@2314 38 #endif
stefank@2314 39 #ifdef TARGET_OS_ARCH_solaris_x86
stefank@2314 40 # include "orderAccess_solaris_x86.inline.hpp"
stefank@2314 41 #endif
stefank@2314 42 #ifdef TARGET_OS_ARCH_solaris_sparc
stefank@2314 43 # include "orderAccess_solaris_sparc.inline.hpp"
stefank@2314 44 #endif
stefank@2314 45 #ifdef TARGET_OS_ARCH_windows_x86
stefank@2314 46 # include "orderAccess_windows_x86.inline.hpp"
stefank@2314 47 #endif
stefank@2314 48
duke@435 49 // A typeArrayOop is an array containing basic types (non oop elements).
duke@435 50 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}
duke@435 51 #include <limits.h>
duke@435 52
duke@435 53 class typeArrayOopDesc : public arrayOopDesc {
duke@435 54 protected:
duke@435 55 jchar* char_base() const { return (jchar*) base(T_CHAR); }
duke@435 56 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); }
duke@435 57 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); }
duke@435 58 jint* int_base() const { return (jint*) base(T_INT); }
duke@435 59 jlong* long_base() const { return (jlong*) base(T_LONG); }
duke@435 60 jshort* short_base() const { return (jshort*) base(T_SHORT); }
duke@435 61 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); }
duke@435 62 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); }
duke@435 63
duke@435 64 friend class typeArrayKlass;
duke@435 65
duke@435 66 public:
duke@435 67 jbyte* byte_at_addr(int which) const {
duke@435 68 assert(is_within_bounds(which), "index out of bounds");
duke@435 69 return &byte_base()[which];
duke@435 70 }
duke@435 71
duke@435 72 jboolean* bool_at_addr(int which) const {
duke@435 73 assert(is_within_bounds(which), "index out of bounds");
duke@435 74 return &bool_base()[which];
duke@435 75 }
duke@435 76
duke@435 77 jchar* char_at_addr(int which) const {
duke@435 78 assert(is_within_bounds(which), "index out of bounds");
duke@435 79 return &char_base()[which];
duke@435 80 }
duke@435 81
duke@435 82 jint* int_at_addr(int which) const {
duke@435 83 assert(is_within_bounds(which), "index out of bounds");
duke@435 84 return &int_base()[which];
duke@435 85 }
duke@435 86
duke@435 87 jshort* short_at_addr(int which) const {
duke@435 88 assert(is_within_bounds(which), "index out of bounds");
duke@435 89 return &short_base()[which];
duke@435 90 }
duke@435 91
duke@435 92 jushort* ushort_at_addr(int which) const { // for field descriptor arrays
duke@435 93 assert(is_within_bounds(which), "index out of bounds");
duke@435 94 return (jushort*) &short_base()[which];
duke@435 95 }
duke@435 96
duke@435 97 jlong* long_at_addr(int which) const {
duke@435 98 assert(is_within_bounds(which), "index out of bounds");
duke@435 99 return &long_base()[which];
duke@435 100 }
duke@435 101
duke@435 102 jfloat* float_at_addr(int which) const {
duke@435 103 assert(is_within_bounds(which), "index out of bounds");
duke@435 104 return &float_base()[which];
duke@435 105 }
duke@435 106
duke@435 107 jdouble* double_at_addr(int which) const {
duke@435 108 assert(is_within_bounds(which), "index out of bounds");
duke@435 109 return &double_base()[which];
duke@435 110 }
duke@435 111
duke@435 112 jbyte byte_at(int which) const { return *byte_at_addr(which); }
duke@435 113 void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; }
duke@435 114
duke@435 115 jboolean bool_at(int which) const { return *bool_at_addr(which); }
duke@435 116 void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; }
duke@435 117
duke@435 118 jchar char_at(int which) const { return *char_at_addr(which); }
duke@435 119 void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; }
duke@435 120
duke@435 121 jint int_at(int which) const { return *int_at_addr(which); }
duke@435 122 void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; }
duke@435 123
duke@435 124 jshort short_at(int which) const { return *short_at_addr(which); }
duke@435 125 void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; }
duke@435 126
duke@435 127 jushort ushort_at(int which) const { return *ushort_at_addr(which); }
duke@435 128 void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; }
duke@435 129
duke@435 130 jlong long_at(int which) const { return *long_at_addr(which); }
duke@435 131 void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; }
duke@435 132
duke@435 133 jfloat float_at(int which) const { return *float_at_addr(which); }
duke@435 134 void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; }
duke@435 135
duke@435 136 jdouble double_at(int which) const { return *double_at_addr(which); }
duke@435 137 void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; }
duke@435 138
duke@435 139 jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); }
duke@435 140 void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); }
duke@435 141
duke@435 142 // Sizing
duke@435 143
duke@435 144 // Returns the number of words necessary to hold an array of "len"
duke@435 145 // elements each of the given "byte_size".
duke@435 146 private:
duke@435 147 static int object_size(int lh, int length) {
duke@435 148 int instance_header_size = Klass::layout_helper_header_size(lh);
duke@435 149 int element_shift = Klass::layout_helper_log2_element_size(lh);
duke@435 150 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
duke@435 151 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
duke@435 152
duke@435 153 julong size_in_bytes = length;
duke@435 154 size_in_bytes <<= element_shift;
duke@435 155 size_in_bytes += instance_header_size;
duke@435 156 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
duke@435 157 assert(size_in_words <= (julong)max_jint, "no overflow");
duke@435 158
duke@435 159 return align_object_size((intptr_t)size_in_words);
duke@435 160 }
duke@435 161
duke@435 162 public:
duke@435 163 int object_size() {
duke@435 164 typeArrayKlass* tk = typeArrayKlass::cast(klass());
duke@435 165 return object_size(tk->layout_helper(), length());
duke@435 166 }
duke@435 167 };
stefank@2314 168
stefank@2314 169 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP

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