56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP
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#define SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP
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#include "utilities/macros.hpp"
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#include <stddef.h>
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#include <string.h>
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// Only used by concurrent collectors.
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#if INCLUDE_ALL_GCS
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// Fill a block of memory with value, like memset, but with the
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// understanding that there may be concurrent readers of that memory.
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void memset_with_concurrent_readers(void* to, int value, size_t size);
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#ifdef SPARC
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// SPARC requires special handling. See SPARC-specific definition.
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#else
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// All others just use memset.
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inline void memset_with_concurrent_readers(void* to, int value, size_t size) {
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::memset(to, value, size);
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}
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#endif // End of target dispatch.
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#endif // INCLUDE_ALL_GCS
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#endif // SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP
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