8198515: Extract SoftReferencePolicy code out of CollectorPolicy
Reviewed-by: pliden, sjohanss
/*
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#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