author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 1 | 489c9b5090e2 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
2 |
* Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved. |
1 | 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 |
* |
|
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
21 |
* questions. |
1 | 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"); |
|
45 |
return &byte_base()[which]; |
|
46 |
} |
|
47 |
||
48 |
jboolean* bool_at_addr(int which) const { |
|
49 |
assert(is_within_bounds(which), "index out of bounds"); |
|
50 |
return &bool_base()[which]; |
|
51 |
} |
|
52 |
||
53 |
jchar* char_at_addr(int which) const { |
|
54 |
assert(is_within_bounds(which), "index out of bounds"); |
|
55 |
return &char_base()[which]; |
|
56 |
} |
|
57 |
||
58 |
jint* int_at_addr(int which) const { |
|
59 |
assert(is_within_bounds(which), "index out of bounds"); |
|
60 |
return &int_base()[which]; |
|
61 |
} |
|
62 |
||
63 |
jshort* short_at_addr(int which) const { |
|
64 |
assert(is_within_bounds(which), "index out of bounds"); |
|
65 |
return &short_base()[which]; |
|
66 |
} |
|
67 |
||
68 |
jushort* ushort_at_addr(int which) const { // for field descriptor arrays |
|
69 |
assert(is_within_bounds(which), "index out of bounds"); |
|
70 |
return (jushort*) &short_base()[which]; |
|
71 |
} |
|
72 |
||
73 |
jlong* long_at_addr(int which) const { |
|
74 |
assert(is_within_bounds(which), "index out of bounds"); |
|
75 |
return &long_base()[which]; |
|
76 |
} |
|
77 |
||
78 |
jfloat* float_at_addr(int which) const { |
|
79 |
assert(is_within_bounds(which), "index out of bounds"); |
|
80 |
return &float_base()[which]; |
|
81 |
} |
|
82 |
||
83 |
jdouble* double_at_addr(int which) const { |
|
84 |
assert(is_within_bounds(which), "index out of bounds"); |
|
85 |
return &double_base()[which]; |
|
86 |
} |
|
87 |
||
88 |
jbyte byte_at(int which) const { return *byte_at_addr(which); } |
|
89 |
void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } |
|
90 |
||
91 |
jboolean bool_at(int which) const { return *bool_at_addr(which); } |
|
92 |
void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } |
|
93 |
||
94 |
jchar char_at(int which) const { return *char_at_addr(which); } |
|
95 |
void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } |
|
96 |
||
97 |
jint int_at(int which) const { return *int_at_addr(which); } |
|
98 |
void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } |
|
99 |
||
100 |
jshort short_at(int which) const { return *short_at_addr(which); } |
|
101 |
void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } |
|
102 |
||
103 |
jushort ushort_at(int which) const { return *ushort_at_addr(which); } |
|
104 |
void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } |
|
105 |
||
106 |
jlong long_at(int which) const { return *long_at_addr(which); } |
|
107 |
void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } |
|
108 |
||
109 |
jfloat float_at(int which) const { return *float_at_addr(which); } |
|
110 |
void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } |
|
111 |
||
112 |
jdouble double_at(int which) const { return *double_at_addr(which); } |
|
113 |
void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } |
|
114 |
||
115 |
jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } |
|
116 |
void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } |
|
117 |
||
118 |
// Sizing |
|
119 |
||
120 |
// Returns the number of words necessary to hold an array of "len" |
|
121 |
// elements each of the given "byte_size". |
|
122 |
private: |
|
123 |
static int object_size(int lh, int length) { |
|
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 |
}; |