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annotate graal/com.oracle.nfi/src/com/oracle/nfi/NativeFunctionInterfaceRuntime.java @ 16704:3cd605c98060

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NFI: cleanup
author Matthias Grimmer <grimmer@ssw.jku.at>
date Wed, 06 Aug 2014 08:27:42 +0200
parents dd8449afc086
children 13f8c249edb8
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.nfi;
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24
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25 import com.oracle.nfi.api.*;
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26
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27 /**
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28 * Class for obtaining the Native Function Interface runtime singleton object of this virtual
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29 * machine.
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30 */
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31 public final class NativeFunctionInterfaceRuntime {
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32 private static final NativeFunctionInterface INTERFACE;
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33
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34 /**
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35 * Creates a new {@link NativeFunctionInterface} instance if running on top of Graal.
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36 *
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37 * @throws UnsatisfiedLinkError if not running on top of Graal and initialize the
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38 * {@link NativeFunctionInterface} instance with <code>null</code>.
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39 */
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40 private static native NativeFunctionInterface createInterface();
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41
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42 public static NativeFunctionInterface getNativeFunctionInterface() {
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43 return INTERFACE;
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44 }
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45
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46 static {
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47 NativeFunctionInterface instance;
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48 try {
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49 instance = createInterface();
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50 } catch (UnsatisfiedLinkError e) {
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51 instance = null;
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52 }
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53 INTERFACE = instance;
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54 }
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55 }