/*

 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

#ifndef SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP

#define SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP

#include "utilities/macros.hpp"

#include <stddef.h>

#include <string.h>

// Only used by concurrent collectors.

#if INCLUDE_ALL_GCS

// Fill a block of memory with value, like memset, but with the

// understanding that there may be concurrent readers of that memory.

void memset_with_concurrent_readers(void* to, int value, size_t size);

#ifdef SPARC

// SPARC requires special handling.  See SPARC-specific definition.

#else

// All others just use memset.

inline void memset_with_concurrent_readers(void* to, int value, size_t size) {

  ::memset(to, value, size);

}

#endif // End of target dispatch.

#endif // INCLUDE_ALL_GCS

#endif // SRC_SHARE_VM_GC_SHARED_MEMSETWITHCONCURRENTREADERS_HPP