Mercurial > hg > truffle
view graal/com.oracle.nfi/src/com/oracle/nfi/NativeFunctionInterfaceRuntime.java @ 18739:3b60f720b955 graal-0.6
partial backout of 97f2038b7
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Sat, 20 Dec 2014 11:45:24 +0100 |
parents | 13f8c249edb8 |
children | 2f92172fa320 |
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/* * Copyright (c) 2013, 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. */ package com.oracle.nfi; import com.oracle.nfi.api.*; /** * Class for obtaining the {@link NativeFunctionInterface} (if any) provided by the VM. */ public final class NativeFunctionInterfaceRuntime { private static final NativeFunctionInterface INSTANCE; /** * Creates a new {@link NativeFunctionInterface}. * * @throws UnsatisfiedLinkError if not running on a VM that provides a * {@link NativeFunctionInterface} */ private static native NativeFunctionInterface createInterface(); /** * Gets the {@link NativeFunctionInterface} (if any) provided by the VM. * * @return null if the VM does not provide a {@link NativeFunctionInterface} */ public static NativeFunctionInterface getNativeFunctionInterface() { return INSTANCE; } static { NativeFunctionInterface instance; try { instance = createInterface(); } catch (UnsatisfiedLinkError e) { instance = null; } INSTANCE = instance; } }