hotspot/src/os/windows/vm/interfaceSupport_windows.hpp
author amurillo
Fri, 05 Dec 2014 16:36:07 -0800
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/*
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 * Copyright (c) 2005, 2010, 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 OS_WINDOWS_VM_INTERFACESUPPORT_WINDOWS_HPP
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#define OS_WINDOWS_VM_INTERFACESUPPORT_WINDOWS_HPP
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// Contains inlined functions for class InterfaceSupport
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static inline void serialize_memory(JavaThread *thread) {
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  // due to chained nature of SEH handlers we have to be sure
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  // that our handler is always last handler before an attempt to write
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  // into serialization page - it can fault if we access this page
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  // right in the middle of protect/unprotect sequence by remote
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  // membar logic.
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  // __try/__except are very lightweight operations (only several
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  // instructions not affecting control flow directly on x86)
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  // so we can use it here, on very time critical path
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  __try {
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    os::write_memory_serialize_page(thread);
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  } __except (os::win32::
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              serialize_fault_filter((_EXCEPTION_POINTERS*)_exception_info()))
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    {}
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}
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#endif // OS_WINDOWS_VM_INTERFACESUPPORT_WINDOWS_HPP