1/*
2 * Copyright (c) 2015, 2019, 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.
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23 */
24
25#ifndef SHARE_GC_SHARED_MEMSET_WITH_CONCURRENT_READERS_HPP
26#define SHARE_GC_SHARED_MEMSET_WITH_CONCURRENT_READERS_HPP
27
28#include "utilities/macros.hpp"
29
30#include <stddef.h>
31#include <string.h>
32
33// Fill a block of memory with value, like memset, but with the
34// understanding that there may be concurrent readers of that memory.
35void memset_with_concurrent_readers(void* to, int value, size_t size);
36
37#ifdef SPARC
38
39// SPARC requires special handling. See SPARC-specific definition.
40
41#else
42// All others just use memset.
43
44inline void memset_with_concurrent_readers(void* to, int value, size_t size) {
45 ::memset(to, value, size);
46}
47
48#endif // End of target dispatch.
49
50#endif // SHARE_GC_SHARED_MEMSET_WITH_CONCURRENT_READERS_HPP
51