Mercurial > hg > truffle
annotate src/share/vm/services/memPtr.cpp @ 7090:05ce1defa4f9
Common out some parts of UnsafeLoad/Store in UnsafeAccess
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 29 Nov 2012 13:24:08 +0100 |
parents | 716c64bda5ba |
children | 4102b59539ce |
rev | line source |
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6197 | 1 /* |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "precompiled.hpp" | |
26 #include "services/memPtr.hpp" | |
27 #include "services/memTracker.hpp" | |
28 | |
29 volatile jint SequenceGenerator::_seq_number = 1; | |
6607
e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6197
diff
changeset
|
30 NOT_PRODUCT(jint SequenceGenerator::_max_seq_number = 1;) |
6197 | 31 DEBUG_ONLY(volatile unsigned long SequenceGenerator::_generation = 0;) |
32 | |
33 jint SequenceGenerator::next() { | |
34 jint seq = Atomic::add(1, &_seq_number); | |
35 if (seq < 0) { | |
36 MemTracker::shutdown(MemTracker::NMT_sequence_overflow); | |
37 } | |
38 assert(seq > 0, "counter overflow"); | |
6607
e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6197
diff
changeset
|
39 NOT_PRODUCT(_max_seq_number = (seq > _max_seq_number) ? seq : _max_seq_number;) |
6197 | 40 return seq; |
41 } | |
42 |