hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp
author ysr
Sun, 07 Jun 2009 00:27:41 -0700
changeset 2885 7dd49b9daa4a
parent 1 489c9b5090e2
child 3690 dba50b88bd50
permissions -rw-r--r--
6848641: CMSCollector::_roots_scanning_options should be initialized Summary: The field is now initialized in the constructor. Reviewed-by: iveresov, jmasa, johnc
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/*
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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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inline void PushOrMarkClosure::remember_klass(Klass* k) {
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  if (!_revisitStack->push(oop(k))) {
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    fatal("Revisit stack overflow in PushOrMarkClosure");
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  }
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}
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inline void Par_PushOrMarkClosure::remember_klass(Klass* k) {
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  if (!_revisit_stack->par_push(oop(k))) {
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    fatal("Revisit stack overflow in PushOrMarkClosure");
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  }
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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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}