src/share/vm/gc_implementation/g1/ptrQueue.inline.hpp

Fri, 12 Jun 2009 16:20:16 -0400

author
tonyp
date
Fri, 12 Jun 2009 16:20:16 -0400
changeset 1246
830ca2573896
parent 777
37f87013dfd8
permissions
-rw-r--r--

6850846: G1: extend G1 marking verification
Summary: extend G1 marking verification to use either the "prev" or "next" marking information, as appropriate.
Reviewed-by: johnc, ysr

ysr@777 1 /*
ysr@777 2 * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved.
ysr@777 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ysr@777 4 *
ysr@777 5 * This code is free software; you can redistribute it and/or modify it
ysr@777 6 * under the terms of the GNU General Public License version 2 only, as
ysr@777 7 * published by the Free Software Foundation.
ysr@777 8 *
ysr@777 9 * This code is distributed in the hope that it will be useful, but WITHOUT
ysr@777 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ysr@777 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ysr@777 12 * version 2 for more details (a copy is included in the LICENSE file that
ysr@777 13 * accompanied this code).
ysr@777 14 *
ysr@777 15 * You should have received a copy of the GNU General Public License version
ysr@777 16 * 2 along with this work; if not, write to the Free Software Foundation,
ysr@777 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ysr@777 18 *
ysr@777 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
ysr@777 20 * CA 95054 USA or visit www.sun.com if you need additional information or
ysr@777 21 * have any questions.
ysr@777 22 *
ysr@777 23 */
ysr@777 24
ysr@777 25 void PtrQueue::handle_zero_index() {
ysr@777 26 assert(0 == _index, "Precondition.");
ysr@777 27 // This thread records the full buffer and allocates a new one (while
ysr@777 28 // holding the lock if there is one).
ysr@777 29 void** buf = _buf;
ysr@777 30 _buf = qset()->allocate_buffer();
ysr@777 31 _sz = qset()->buffer_size();
ysr@777 32 _index = _sz;
ysr@777 33 assert(0 <= _index && _index <= _sz, "Invariant.");
ysr@777 34 if (buf != NULL) {
ysr@777 35 if (_lock) {
ysr@777 36 locking_enqueue_completed_buffer(buf);
ysr@777 37 } else {
ysr@777 38 qset()->enqueue_complete_buffer(buf);
ysr@777 39 }
ysr@777 40 }
ysr@777 41 }

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