Mercurial > hg > truffle
view src/share/vm/gc_implementation/concurrentMarkSweep/cmsLockVerifier.hpp @ 1520:bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
Summary: GC-locker induced concurrent full gc should be asynchronous; policy now controlled by a separate flag, which defaults to false.
Reviewed-by: jmasa
author | ysr |
---|---|
date | Mon, 03 May 2010 20:19:05 -0700 |
parents | e018e6884bd8 |
children | c18cbe5936b8 |
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/* * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ ///////////// Locking verification specific to CMS ////////////// // Much like "assert_lock_strong()", except // that it relaxes the assertion somewhat for the parallel GC case, where // main GC thread or the CMS thread might hold the lock on behalf of // the parallel threads. class CMSLockVerifier: AllStatic { public: static void assert_locked(const Mutex* lock, const Mutex* p_lock1, const Mutex* p_lock2) PRODUCT_RETURN; static void assert_locked(const Mutex* lock, const Mutex* p_lock) { assert_locked(lock, p_lock, NULL); } static void assert_locked(const Mutex* lock) { assert_locked(lock, NULL); } };