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1 /*
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2 * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // Trim our work_queue so its length is below max at return
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26 inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
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27 while (_work_queue->size() > max) {
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28 oop newOop;
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29 if (_work_queue->pop_local(newOop)) {
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30 assert(newOop->is_oop(), "Expected an oop");
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31 assert(_bit_map->isMarked((HeapWord*)newOop),
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32 "only grey objects on this stack");
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33 // iterate over the oops in this oop, marking and pushing
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34 // the ones in CMS heap (i.e. in _span).
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35 newOop->oop_iterate(&_par_pushAndMarkClosure);
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36 }
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37 }
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38 }
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39
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40 inline void PushOrMarkClosure::remember_klass(Klass* k) {
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41 if (!_revisitStack->push(oop(k))) {
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42 fatal("Revisit stack overflow in PushOrMarkClosure");
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43 }
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44 }
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45
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46 inline void Par_PushOrMarkClosure::remember_klass(Klass* k) {
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47 if (!_revisit_stack->par_push(oop(k))) {
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48 fatal("Revisit stack overflow in PushOrMarkClosure");
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49 }
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50 }
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51
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52 inline void PushOrMarkClosure::do_yield_check() {
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53 _parent->do_yield_check();
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54 }
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55
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56 inline void Par_PushOrMarkClosure::do_yield_check() {
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57 _parent->do_yield_check();
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58 }
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