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c6763b5bad
Treat ProfileData in MDO's as a source of weak, not strong, roots. Fixes the bug for stop-world collection -- the case of concurrent collection will be fixed separately. Reviewed-by: jcoomes, jmasa, kvn, never
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// Trim our work_queue so its length is below max at return
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inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
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while (_work_queue->size() > max) {
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oop newOop;
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if (_work_queue->pop_local(newOop)) {
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assert(newOop->is_oop(), "Expected an oop");
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assert(_bit_map->isMarked((HeapWord*)newOop),
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"only grey objects on this stack");
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// iterate over the oops in this oop, marking and pushing
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// the ones in CMS heap (i.e. in _span).
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newOop->oop_iterate(&_par_pushAndMarkClosure);
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}
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}
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}
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#ifndef PRODUCT
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void KlassRememberingOopClosure::check_remember_klasses() const {
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assert(_should_remember_klasses == must_remember_klasses(),
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"Should remember klasses in this context.");
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}
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#endif
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void KlassRememberingOopClosure::remember_klass(Klass* k) {
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if (!_revisit_stack->push(oop(k))) {
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fatal("Revisit stack overflow in PushOrMarkClosure");
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}
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check_remember_klasses();
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}
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inline void PushOrMarkClosure::remember_mdo(DataLayout* v) {
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// TBD
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}
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void Par_KlassRememberingOopClosure::remember_klass(Klass* k) {
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if (!_revisit_stack->par_push(oop(k))) {
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fatal("Revisit stack overflow in Par_KlassRememberingOopClosure");
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}
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check_remember_klasses();
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}
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inline void Par_PushOrMarkClosure::remember_mdo(DataLayout* v) {
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// TBD
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}
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inline void PushOrMarkClosure::do_yield_check() {
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_parent->do_yield_check();
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}
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inline void Par_PushOrMarkClosure::do_yield_check() {
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_parent->do_yield_check();
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}
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