1 /*
2 * Copyright (c) 1997, 2007, 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
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 *
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.
22 *
23 */
24
25 // A typeArrayOop is an array containing basic types (non oop elements).
26 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}
27 #include <limits.h>
28
29 class typeArrayOopDesc : public arrayOopDesc {
30 protected:
31 jchar* char_base() const { return (jchar*) base(T_CHAR); }
32 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); }
33 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); }
34 jint* int_base() const { return (jint*) base(T_INT); }
35 jlong* long_base() const { return (jlong*) base(T_LONG); }
36 jshort* short_base() const { return (jshort*) base(T_SHORT); }
37 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); }
38 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); }
39
40 friend class typeArrayKlass;
41
42 public:
43 jbyte* byte_at_addr(int which) const {
44 assert(is_within_bounds(which), "index out of bounds");
124 int instance_header_size = Klass::layout_helper_header_size(lh);
125 int element_shift = Klass::layout_helper_log2_element_size(lh);
126 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
127 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
128
129 julong size_in_bytes = length;
130 size_in_bytes <<= element_shift;
131 size_in_bytes += instance_header_size;
132 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
133 assert(size_in_words <= (julong)max_jint, "no overflow");
134
135 return align_object_size((intptr_t)size_in_words);
136 }
137
138 public:
139 int object_size() {
140 typeArrayKlass* tk = typeArrayKlass::cast(klass());
141 return object_size(tk->layout_helper(), length());
142 }
143 };
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1 /*
2 * Copyright (c) 1997, 2010, 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
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 *
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.
22 *
23 */
24
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
48
49 // A typeArrayOop is an array containing basic types (non oop elements).
50 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}
51 #include <limits.h>
52
53 class typeArrayOopDesc : public arrayOopDesc {
54 protected:
55 jchar* char_base() const { return (jchar*) base(T_CHAR); }
56 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); }
57 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); }
58 jint* int_base() const { return (jint*) base(T_INT); }
59 jlong* long_base() const { return (jlong*) base(T_LONG); }
60 jshort* short_base() const { return (jshort*) base(T_SHORT); }
61 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); }
62 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); }
63
64 friend class typeArrayKlass;
65
66 public:
67 jbyte* byte_at_addr(int which) const {
68 assert(is_within_bounds(which), "index out of bounds");
148 int instance_header_size = Klass::layout_helper_header_size(lh);
149 int element_shift = Klass::layout_helper_log2_element_size(lh);
150 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
151 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
152
153 julong size_in_bytes = length;
154 size_in_bytes <<= element_shift;
155 size_in_bytes += instance_header_size;
156 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
157 assert(size_in_words <= (julong)max_jint, "no overflow");
158
159 return align_object_size((intptr_t)size_in_words);
160 }
161
162 public:
163 int object_size() {
164 typeArrayKlass* tk = typeArrayKlass::cast(klass());
165 return object_size(tk->layout_helper(), length());
166 }
167 };
168
169 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP
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