278 }
279
280 void ObjArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
281 cm->follow_klass(this);
282
283 if (UseCompressedOops) {
284 oop_pc_follow_contents_specialized<narrowOop>(objArrayOop(obj), 0, cm);
285 } else {
286 oop_pc_follow_contents_specialized<oop>(objArrayOop(obj), 0, cm);
287 }
288 }
289
290 void TypeArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
291 assert(obj->is_typeArray(),"must be a type array");
292 // Performance tweak: We skip iterating over the klass pointer since we
293 // know that Universe::TypeArrayKlass never moves.
294 }
295
296 void ValueArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
297 assert(obj->is_valueArray(),"must be a value array");
298
299 cm->follow_klass(this);
300 if (contains_oops()) {
301 Unimplemented(); // Don't have embedded oops to test with just now
302 }
303 }
304
305 void ParCompactionManager::follow_marking_stacks() {
306 do {
307 // Drain the overflow stack first, to allow stealing from the marking stack.
308 oop obj;
309 while (marking_stack()->pop_overflow(obj)) {
310 follow_contents(obj);
311 }
312 while (marking_stack()->pop_local(obj)) {
313 follow_contents(obj);
314 }
315
316 // Process ObjArrays one at a time to avoid marking stack bloat.
317 ObjArrayTask task;
318 if (_objarray_stack.pop_overflow(task) || _objarray_stack.pop_local(task)) {
319 follow_contents((objArrayOop)task.obj(), task.index());
320 }
321 } while (!marking_stacks_empty());
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278 }
279
280 void ObjArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
281 cm->follow_klass(this);
282
283 if (UseCompressedOops) {
284 oop_pc_follow_contents_specialized<narrowOop>(objArrayOop(obj), 0, cm);
285 } else {
286 oop_pc_follow_contents_specialized<oop>(objArrayOop(obj), 0, cm);
287 }
288 }
289
290 void TypeArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
291 assert(obj->is_typeArray(),"must be a type array");
292 // Performance tweak: We skip iterating over the klass pointer since we
293 // know that Universe::TypeArrayKlass never moves.
294 }
295
296 void ValueArrayKlass::oop_pc_follow_contents(oop obj, ParCompactionManager* cm) {
297 assert(obj->is_valueArray(),"must be a value array");
298 cm->follow_klass(this);
299 if (contains_oops()) { // CMH: parallel version (like objArrayTask) missing, treat as single obj for now
300 ParCompactionManager::MarkAndPushClosure cl(cm);
301 ValueArrayKlass::oop_oop_iterate_elements<true>(valueArrayOop(obj), &cl);
302 }
303 }
304
305 void ParCompactionManager::follow_marking_stacks() {
306 do {
307 // Drain the overflow stack first, to allow stealing from the marking stack.
308 oop obj;
309 while (marking_stack()->pop_overflow(obj)) {
310 follow_contents(obj);
311 }
312 while (marking_stack()->pop_local(obj)) {
313 follow_contents(obj);
314 }
315
316 // Process ObjArrays one at a time to avoid marking stack bloat.
317 ObjArrayTask task;
318 if (_objarray_stack.pop_overflow(task) || _objarray_stack.pop_local(task)) {
319 follow_contents((objArrayOop)task.obj(), task.index());
320 }
321 } while (!marking_stacks_empty());
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