annotate src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.cpp @ 989:148e5441d916

6863023: need non-perm oops in code cache for JSR 292 Summary: Make a special root-list for those few nmethods which might contain non-perm oops. Reviewed-by: twisti, kvn, never, jmasa, ysr
author jrose
date Tue, 15 Sep 2009 21:53:47 -0700
parents a61af66fc99e
children c18cbe5936b8
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1 /*
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2 * Copyright 2002-2004 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 # include "incls/_precompiled.incl"
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26 # include "incls/_freeBlockDictionary.cpp.incl"
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27
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28 #ifndef PRODUCT
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29 Mutex* FreeBlockDictionary::par_lock() const {
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30 return _lock;
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31 }
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32
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33 void FreeBlockDictionary::set_par_lock(Mutex* lock) {
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34 _lock = lock;
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35 }
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36
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37 void FreeBlockDictionary::verify_par_locked() const {
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38 #ifdef ASSERT
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39 if (ParallelGCThreads > 0) {
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40 Thread* myThread = Thread::current();
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41 if (myThread->is_GC_task_thread()) {
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42 assert(par_lock() != NULL, "Should be using locking?");
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43 assert_lock_strong(par_lock());
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44 }
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45 }
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46 #endif // ASSERT
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47 }
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48 #endif