Mercurial > hg > truffle
annotate src/share/vm/oops/objArrayKlass.cpp @ 6024:973046802b6f
7162955: Attach api on Solaris, too many open files
Summary: Release server-side socket after client receives it.
Reviewed-by: sla, dsamersoff, dcubed, acorn
Contributed-by: dean.long@oracle.com
author | dlong |
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date | Thu, 26 Apr 2012 16:24:15 -0400 |
parents | b632e80fc9dc |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "gc_implementation/shared/markSweep.inline.hpp" | |
29 #include "gc_interface/collectedHeap.inline.hpp" | |
30 #include "memory/genOopClosures.inline.hpp" | |
31 #include "memory/resourceArea.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/instanceKlass.hpp" | |
34 #include "oops/objArrayKlass.hpp" | |
35 #include "oops/objArrayKlass.inline.hpp" | |
36 #include "oops/objArrayKlassKlass.hpp" | |
37 #include "oops/objArrayOop.hpp" | |
38 #include "oops/oop.inline.hpp" | |
39 #include "oops/oop.inline2.hpp" | |
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40 #include "oops/symbol.hpp" |
1972 | 41 #include "runtime/handles.inline.hpp" |
42 #include "runtime/mutexLocker.hpp" | |
43 #include "utilities/copy.hpp" | |
44 #ifndef SERIALGC | |
45 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
46 #include "gc_implementation/g1/g1OopClosures.inline.hpp" | |
47 #include "gc_implementation/g1/g1RemSet.inline.hpp" | |
48 #include "gc_implementation/g1/heapRegionSeq.inline.hpp" | |
49 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
50 #include "gc_implementation/parallelScavenge/psCompactionManager.hpp" | |
51 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
52 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
53 #include "oops/oop.pcgc.inline.hpp" | |
54 #endif | |
0 | 55 |
56 int objArrayKlass::oop_size(oop obj) const { | |
57 assert(obj->is_objArray(), "must be object array"); | |
58 return objArrayOop(obj)->object_size(); | |
59 } | |
60 | |
61 objArrayOop objArrayKlass::allocate(int length, TRAPS) { | |
62 if (length >= 0) { | |
63 if (length <= arrayOopDesc::max_array_length(T_OBJECT)) { | |
64 int size = objArrayOopDesc::object_size(length); | |
65 KlassHandle h_k(THREAD, as_klassOop()); | |
66 objArrayOop a = (objArrayOop)CollectedHeap::array_allocate(h_k, size, length, CHECK_NULL); | |
67 assert(a->is_parsable(), "Can't publish unless parsable"); | |
68 return a; | |
69 } else { | |
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70 report_java_out_of_memory("Requested array size exceeds VM limit"); |
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71 JvmtiExport::post_array_size_exhausted(); |
0 | 72 THROW_OOP_0(Universe::out_of_memory_error_array_size()); |
73 } | |
74 } else { | |
75 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
76 } | |
77 } | |
78 | |
79 static int multi_alloc_counter = 0; | |
80 | |
81 oop objArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) { | |
82 int length = *sizes; | |
83 // Call to lower_dimension uses this pointer, so most be called before a | |
84 // possible GC | |
85 KlassHandle h_lower_dimension(THREAD, lower_dimension()); | |
86 // If length < 0 allocate will throw an exception. | |
87 objArrayOop array = allocate(length, CHECK_NULL); | |
88 assert(array->is_parsable(), "Don't handlize unless parsable"); | |
89 objArrayHandle h_array (THREAD, array); | |
90 if (rank > 1) { | |
91 if (length != 0) { | |
92 for (int index = 0; index < length; index++) { | |
93 arrayKlass* ak = arrayKlass::cast(h_lower_dimension()); | |
94 oop sub_array = ak->multi_allocate(rank-1, &sizes[1], CHECK_NULL); | |
95 assert(sub_array->is_parsable(), "Don't publish until parsable"); | |
96 h_array->obj_at_put(index, sub_array); | |
97 } | |
98 } else { | |
99 // Since this array dimension has zero length, nothing will be | |
100 // allocated, however the lower dimension values must be checked | |
101 // for illegal values. | |
102 for (int i = 0; i < rank - 1; ++i) { | |
103 sizes += 1; | |
104 if (*sizes < 0) { | |
105 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
106 } | |
107 } | |
108 } | |
109 } | |
110 return h_array(); | |
111 } | |
112 | |
113
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113 // Either oop or narrowOop depending on UseCompressedOops. |
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114 template <class T> void objArrayKlass::do_copy(arrayOop s, T* src, |
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115 arrayOop d, T* dst, int length, TRAPS) { |
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116 |
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117 BarrierSet* bs = Universe::heap()->barrier_set(); |
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118 // For performance reasons, we assume we are that the write barrier we |
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119 // are using has optimized modes for arrays of references. At least one |
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120 // of the asserts below will fail if this is not the case. |
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121 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); |
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122 assert(bs->has_write_ref_array_pre_opt(), "For pre-barrier as well."); |
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123 |
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124 if (s == d) { |
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125 // since source and destination are equal we do not need conversion checks. |
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126 assert(length > 0, "sanity check"); |
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127 bs->write_ref_array_pre(dst, length); |
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128 Copy::conjoint_oops_atomic(src, dst, length); |
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129 } else { |
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130 // We have to make sure all elements conform to the destination array |
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131 klassOop bound = objArrayKlass::cast(d->klass())->element_klass(); |
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132 klassOop stype = objArrayKlass::cast(s->klass())->element_klass(); |
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133 if (stype == bound || Klass::cast(stype)->is_subtype_of(bound)) { |
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134 // elements are guaranteed to be subtypes, so no check necessary |
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135 bs->write_ref_array_pre(dst, length); |
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136 Copy::conjoint_oops_atomic(src, dst, length); |
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137 } else { |
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138 // slow case: need individual subtype checks |
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139 // note: don't use obj_at_put below because it includes a redundant store check |
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140 T* from = src; |
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141 T* end = from + length; |
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142 for (T* p = dst; from < end; from++, p++) { |
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143 // XXX this is going to be slow. |
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144 T element = *from; |
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145 // even slower now |
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146 bool element_is_null = oopDesc::is_null(element); |
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147 oop new_val = element_is_null ? oop(NULL) |
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148 : oopDesc::decode_heap_oop_not_null(element); |
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149 if (element_is_null || |
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150 Klass::cast((new_val->klass()))->is_subtype_of(bound)) { |
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151 bs->write_ref_field_pre(p, new_val); |
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152 *p = *from; |
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153 } else { |
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154 // We must do a barrier to cover the partial copy. |
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155 const size_t pd = pointer_delta(p, dst, (size_t)heapOopSize); |
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156 // pointer delta is scaled to number of elements (length field in |
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157 // objArrayOop) which we assume is 32 bit. |
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158 assert(pd == (size_t)(int)pd, "length field overflow"); |
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159 bs->write_ref_array((HeapWord*)dst, pd); |
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160 THROW(vmSymbols::java_lang_ArrayStoreException()); |
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161 return; |
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162 } |
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163 } |
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164 } |
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165 } |
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166 bs->write_ref_array((HeapWord*)dst, length); |
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167 } |
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168 |
0 | 169 void objArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, |
170 int dst_pos, int length, TRAPS) { | |
171 assert(s->is_objArray(), "must be obj array"); | |
172 | |
173 if (!d->is_objArray()) { | |
174 THROW(vmSymbols::java_lang_ArrayStoreException()); | |
175 } | |
176 | |
177 // Check is all offsets and lengths are non negative | |
178 if (src_pos < 0 || dst_pos < 0 || length < 0) { | |
179 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
180 } | |
181 // Check if the ranges are valid | |
182 if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) | |
183 || (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) { | |
184 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
185 } | |
186 | |
187 // Special case. Boundary cases must be checked first | |
188 // This allows the following call: copy_array(s, s.length(), d.length(), 0). | |
189 // This is correct, since the position is supposed to be an 'in between point', i.e., s.length(), | |
190 // points to the right of the last element. | |
191 if (length==0) { | |
192 return; | |
193 } | |
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194 if (UseCompressedOops) { |
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195 narrowOop* const src = objArrayOop(s)->obj_at_addr<narrowOop>(src_pos); |
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196 narrowOop* const dst = objArrayOop(d)->obj_at_addr<narrowOop>(dst_pos); |
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197 do_copy<narrowOop>(s, src, d, dst, length, CHECK); |
0 | 198 } else { |
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199 oop* const src = objArrayOop(s)->obj_at_addr<oop>(src_pos); |
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200 oop* const dst = objArrayOop(d)->obj_at_addr<oop>(dst_pos); |
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201 do_copy<oop> (s, src, d, dst, length, CHECK); |
0 | 202 } |
203 } | |
204 | |
205 | |
206 klassOop objArrayKlass::array_klass_impl(bool or_null, int n, TRAPS) { | |
207 objArrayKlassHandle h_this(THREAD, as_klassOop()); | |
208 return array_klass_impl(h_this, or_null, n, CHECK_NULL); | |
209 } | |
210 | |
211 | |
212 klassOop objArrayKlass::array_klass_impl(objArrayKlassHandle this_oop, bool or_null, int n, TRAPS) { | |
213 | |
214 assert(this_oop->dimension() <= n, "check order of chain"); | |
215 int dimension = this_oop->dimension(); | |
216 if (dimension == n) | |
217 return this_oop(); | |
218 | |
219 objArrayKlassHandle ak (THREAD, this_oop->higher_dimension()); | |
220 if (ak.is_null()) { | |
221 if (or_null) return NULL; | |
222 | |
223 ResourceMark rm; | |
224 JavaThread *jt = (JavaThread *)THREAD; | |
225 { | |
226 MutexLocker mc(Compile_lock, THREAD); // for vtables | |
227 // Ensure atomic creation of higher dimensions | |
228 MutexLocker mu(MultiArray_lock, THREAD); | |
229 | |
230 // Check if another thread beat us | |
231 ak = objArrayKlassHandle(THREAD, this_oop->higher_dimension()); | |
232 if( ak.is_null() ) { | |
233 | |
234 // Create multi-dim klass object and link them together | |
235 klassOop new_klass = | |
236 objArrayKlassKlass::cast(Universe::objArrayKlassKlassObj())-> | |
237 allocate_objArray_klass(dimension + 1, this_oop, CHECK_NULL); | |
238 ak = objArrayKlassHandle(THREAD, new_klass); | |
2119 | 239 ak->set_lower_dimension(this_oop()); |
240 OrderAccess::storestore(); | |
0 | 241 this_oop->set_higher_dimension(ak()); |
242 assert(ak->oop_is_objArray(), "incorrect initialization of objArrayKlass"); | |
243 } | |
244 } | |
245 } else { | |
246 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
247 } | |
248 | |
249 if (or_null) { | |
250 return ak->array_klass_or_null(n); | |
251 } | |
252 return ak->array_klass(n, CHECK_NULL); | |
253 } | |
254 | |
255 klassOop objArrayKlass::array_klass_impl(bool or_null, TRAPS) { | |
256 return array_klass_impl(or_null, dimension() + 1, CHECK_NULL); | |
257 } | |
258 | |
259 bool objArrayKlass::can_be_primary_super_slow() const { | |
260 if (!bottom_klass()->klass_part()->can_be_primary_super()) | |
261 // array of interfaces | |
262 return false; | |
263 else | |
264 return Klass::can_be_primary_super_slow(); | |
265 } | |
266 | |
267 objArrayOop objArrayKlass::compute_secondary_supers(int num_extra_slots, TRAPS) { | |
268 // interfaces = { cloneable_klass, serializable_klass, elemSuper[], ... }; | |
269 objArrayOop es = Klass::cast(element_klass())->secondary_supers(); | |
270 objArrayHandle elem_supers (THREAD, es); | |
271 int num_elem_supers = elem_supers.is_null() ? 0 : elem_supers->length(); | |
272 int num_secondaries = num_extra_slots + 2 + num_elem_supers; | |
273 if (num_secondaries == 2) { | |
274 // Must share this for correct bootstrapping! | |
275 return Universe::the_array_interfaces_array(); | |
276 } else { | |
277 objArrayOop sec_oop = oopFactory::new_system_objArray(num_secondaries, CHECK_NULL); | |
278 objArrayHandle secondaries(THREAD, sec_oop); | |
1142 | 279 secondaries->obj_at_put(num_extra_slots+0, SystemDictionary::Cloneable_klass()); |
280 secondaries->obj_at_put(num_extra_slots+1, SystemDictionary::Serializable_klass()); | |
0 | 281 for (int i = 0; i < num_elem_supers; i++) { |
282 klassOop elem_super = (klassOop) elem_supers->obj_at(i); | |
283 klassOop array_super = elem_super->klass_part()->array_klass_or_null(); | |
284 assert(array_super != NULL, "must already have been created"); | |
285 secondaries->obj_at_put(num_extra_slots+2+i, array_super); | |
286 } | |
287 return secondaries(); | |
288 } | |
289 } | |
290 | |
291 bool objArrayKlass::compute_is_subtype_of(klassOop k) { | |
292 if (!k->klass_part()->oop_is_objArray()) | |
293 return arrayKlass::compute_is_subtype_of(k); | |
294 | |
295 objArrayKlass* oak = objArrayKlass::cast(k); | |
296 return element_klass()->klass_part()->is_subtype_of(oak->element_klass()); | |
297 } | |
298 | |
299 void objArrayKlass::initialize(TRAPS) { | |
300 Klass::cast(bottom_klass())->initialize(THREAD); // dispatches to either instanceKlass or typeArrayKlass | |
301 } | |
302 | |
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303 #define ObjArrayKlass_SPECIALIZED_OOP_ITERATE(T, a, p, do_oop) \ |
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304 { \ |
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305 T* p = (T*)(a)->base(); \ |
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306 T* const end = p + (a)->length(); \ |
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307 while (p < end) { \ |
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308 do_oop; \ |
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309 p++; \ |
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310 } \ |
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311 } |
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312 |
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313 #define ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(T, a, p, low, high, do_oop) \ |
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314 { \ |
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315 T* const l = (T*)(low); \ |
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316 T* const h = (T*)(high); \ |
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317 T* p = (T*)(a)->base(); \ |
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318 T* end = p + (a)->length(); \ |
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319 if (p < l) p = l; \ |
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320 if (end > h) end = h; \ |
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321 while (p < end) { \ |
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322 do_oop; \ |
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323 ++p; \ |
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324 } \ |
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325 } |
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326 |
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327 #define ObjArrayKlass_OOP_ITERATE(a, p, do_oop) \ |
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328 if (UseCompressedOops) { \ |
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329 ObjArrayKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \ |
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330 a, p, do_oop) \ |
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331 } else { \ |
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332 ObjArrayKlass_SPECIALIZED_OOP_ITERATE(oop, \ |
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333 a, p, do_oop) \ |
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334 } |
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335 |
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336 #define ObjArrayKlass_BOUNDED_OOP_ITERATE(a, p, low, high, do_oop) \ |
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337 if (UseCompressedOops) { \ |
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338 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
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339 a, p, low, high, do_oop) \ |
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340 } else { \ |
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341 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
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342 a, p, low, high, do_oop) \ |
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343 } |
0 | 344 |
345 void objArrayKlass::oop_follow_contents(oop obj) { | |
346 assert (obj->is_array(), "obj must be array"); | |
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347 objArrayOop(obj)->follow_header(); |
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348 if (UseCompressedOops) { |
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349 objarray_follow_contents<narrowOop>(obj, 0); |
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350 } else { |
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351 objarray_follow_contents<oop>(obj, 0); |
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352 } |
0 | 353 } |
354 | |
355 #ifndef SERIALGC | |
356 void objArrayKlass::oop_follow_contents(ParCompactionManager* cm, | |
357 oop obj) { | |
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358 assert(obj->is_array(), "obj must be array"); |
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359 objArrayOop(obj)->follow_header(cm); |
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360 if (UseCompressedOops) { |
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361 objarray_follow_contents<narrowOop>(cm, obj, 0); |
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362 } else { |
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363 objarray_follow_contents<oop>(cm, obj, 0); |
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364 } |
0 | 365 } |
366 #endif // SERIALGC | |
367 | |
368 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ | |
369 \ | |
370 int objArrayKlass::oop_oop_iterate##nv_suffix(oop obj, \ | |
371 OopClosureType* closure) { \ | |
372 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ | |
373 assert (obj->is_array(), "obj must be array"); \ | |
374 objArrayOop a = objArrayOop(obj); \ | |
375 /* Get size before changing pointers. */ \ | |
376 /* Don't call size() or oop_size() since that is a virtual call. */ \ | |
377 int size = a->object_size(); \ | |
378 if (closure->do_header()) { \ | |
379 a->oop_iterate_header(closure); \ | |
380 } \ | |
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381 ObjArrayKlass_OOP_ITERATE(a, p, (closure)->do_oop##nv_suffix(p)) \ |
0 | 382 return size; \ |
383 } | |
384 | |
385 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ | |
386 \ | |
387 int objArrayKlass::oop_oop_iterate##nv_suffix##_m(oop obj, \ | |
388 OopClosureType* closure, \ | |
389 MemRegion mr) { \ | |
390 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ | |
391 assert(obj->is_array(), "obj must be array"); \ | |
392 objArrayOop a = objArrayOop(obj); \ | |
393 /* Get size before changing pointers. */ \ | |
394 /* Don't call size() or oop_size() since that is a virtual call */ \ | |
395 int size = a->object_size(); \ | |
396 if (closure->do_header()) { \ | |
397 a->oop_iterate_header(closure, mr); \ | |
398 } \ | |
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399 ObjArrayKlass_BOUNDED_OOP_ITERATE( \ |
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400 a, p, mr.start(), mr.end(), (closure)->do_oop##nv_suffix(p)) \ |
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401 return size; \ |
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402 } |
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403 |
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404 // Like oop_oop_iterate but only iterates over a specified range and only used |
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405 // for objArrayOops. |
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406 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r(OopClosureType, nv_suffix) \ |
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407 \ |
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408 int objArrayKlass::oop_oop_iterate_range##nv_suffix(oop obj, \ |
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409 OopClosureType* closure, \ |
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410 int start, int end) { \ |
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411 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ |
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412 assert(obj->is_array(), "obj must be array"); \ |
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413 objArrayOop a = objArrayOop(obj); \ |
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414 /* Get size before changing pointers. */ \ |
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415 /* Don't call size() or oop_size() since that is a virtual call */ \ |
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416 int size = a->object_size(); \ |
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417 if (UseCompressedOops) { \ |
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418 HeapWord* low = start == 0 ? (HeapWord*)a : (HeapWord*)a->obj_at_addr<narrowOop>(start);\ |
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419 /* this might be wierd if end needs to be aligned on HeapWord boundary */ \ |
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420 HeapWord* high = (HeapWord*)((narrowOop*)a->base() + end); \ |
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421 MemRegion mr(low, high); \ |
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422 if (closure->do_header()) { \ |
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423 a->oop_iterate_header(closure, mr); \ |
0 | 424 } \ |
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425 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
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426 a, p, low, high, (closure)->do_oop##nv_suffix(p)) \ |
0 | 427 } else { \ |
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428 HeapWord* low = start == 0 ? (HeapWord*)a : (HeapWord*)a->obj_at_addr<oop>(start); \ |
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429 HeapWord* high = (HeapWord*)((oop*)a->base() + end); \ |
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430 MemRegion mr(low, high); \ |
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431 if (closure->do_header()) { \ |
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432 a->oop_iterate_header(closure, mr); \ |
0 | 433 } \ |
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434 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
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435 a, p, low, high, (closure)->do_oop##nv_suffix(p)) \ |
0 | 436 } \ |
437 return size; \ | |
438 } | |
439 | |
440 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN) | |
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441 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN) |
0 | 442 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m) |
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443 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m) |
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444 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r) |
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445 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r) |
0 | 446 |
447 int objArrayKlass::oop_adjust_pointers(oop obj) { | |
448 assert(obj->is_objArray(), "obj must be obj array"); | |
449 objArrayOop a = objArrayOop(obj); | |
450 // Get size before changing pointers. | |
451 // Don't call size() or oop_size() since that is a virtual call. | |
452 int size = a->object_size(); | |
453 a->adjust_header(); | |
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454 ObjArrayKlass_OOP_ITERATE(a, p, MarkSweep::adjust_pointer(p)) |
0 | 455 return size; |
456 } | |
457 | |
458 #ifndef SERIALGC | |
459 void objArrayKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
460 assert(obj->is_objArray(), "obj must be obj array"); | |
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461 ObjArrayKlass_OOP_ITERATE( \ |
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462 objArrayOop(obj), p, \ |
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463 if (PSScavenge::should_scavenge(p)) { \ |
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464 pm->claim_or_forward_depth(p); \ |
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465 }) |
0 | 466 } |
467 | |
468 int objArrayKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
469 assert (obj->is_objArray(), "obj must be obj array"); | |
470 objArrayOop a = objArrayOop(obj); | |
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471 ObjArrayKlass_OOP_ITERATE(a, p, PSParallelCompact::adjust_pointer(p)) |
0 | 472 return a->object_size(); |
473 } | |
474 #endif // SERIALGC | |
475 | |
476 // JVM support | |
477 | |
478 jint objArrayKlass::compute_modifier_flags(TRAPS) const { | |
479 // The modifier for an objectArray is the same as its element | |
480 if (element_klass() == NULL) { | |
481 assert(Universe::is_bootstrapping(), "partial objArray only at startup"); | |
482 return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC; | |
483 } | |
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484 // Return the flags of the bottom element type. |
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485 jint element_flags = Klass::cast(bottom_klass())->compute_modifier_flags(CHECK_0); |
0 | 486 |
487 return (element_flags & (JVM_ACC_PUBLIC | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED)) | |
488 | (JVM_ACC_ABSTRACT | JVM_ACC_FINAL); | |
489 } | |
490 | |
491 | |
492 #ifndef PRODUCT | |
493 // Printing | |
494 | |
495 void objArrayKlass::oop_print_on(oop obj, outputStream* st) { | |
496 arrayKlass::oop_print_on(obj, st); | |
497 assert(obj->is_objArray(), "must be objArray"); | |
498 objArrayOop oa = objArrayOop(obj); | |
499 int print_len = MIN2((intx) oa->length(), MaxElementPrintSize); | |
500 for(int index = 0; index < print_len; index++) { | |
501 st->print(" - %3d : ", index); | |
502 oa->obj_at(index)->print_value_on(st); | |
503 st->cr(); | |
504 } | |
505 int remaining = oa->length() - print_len; | |
506 if (remaining > 0) { | |
507 tty->print_cr(" - <%d more elements, increase MaxElementPrintSize to print>", remaining); | |
508 } | |
509 } | |
510 | |
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511 #endif //PRODUCT |
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512 |
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513 static int max_objArray_print_length = 4; |
0 | 514 |
515 void objArrayKlass::oop_print_value_on(oop obj, outputStream* st) { | |
516 assert(obj->is_objArray(), "must be objArray"); | |
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517 st->print("a "); |
0 | 518 element_klass()->print_value_on(st); |
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519 int len = objArrayOop(obj)->length(); |
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520 st->print("[%d] ", len); |
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521 obj->print_address_on(st); |
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522 if (NOT_PRODUCT(PrintOopAddress ||) PrintMiscellaneous && (WizardMode || Verbose)) { |
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523 st->print("{"); |
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524 for (int i = 0; i < len; i++) { |
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525 if (i > max_objArray_print_length) { |
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526 st->print("..."); break; |
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527 } |
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528 st->print(" "INTPTR_FORMAT, (intptr_t)(void*)objArrayOop(obj)->obj_at(i)); |
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529 } |
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530 st->print(" }"); |
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531 } |
0 | 532 } |
533 | |
534 const char* objArrayKlass::internal_name() const { | |
535 return external_name(); | |
536 } | |
537 | |
538 // Verification | |
539 | |
540 void objArrayKlass::oop_verify_on(oop obj, outputStream* st) { | |
541 arrayKlass::oop_verify_on(obj, st); | |
542 guarantee(obj->is_objArray(), "must be objArray"); | |
543 objArrayOop oa = objArrayOop(obj); | |
544 for(int index = 0; index < oa->length(); index++) { | |
545 guarantee(oa->obj_at(index)->is_oop_or_null(), "should be oop"); | |
546 } | |
547 } |