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annotate graal/com.oracle.nfi/src/com/oracle/nfi/api/NativeFunctionHandle.java @ 18408:2c3666f44855

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Truffle: initial commit of object API implementation
author Andreas Woess <andreas.woess@jku.at>
date Tue, 18 Nov 2014 23:19:43 +0100
parents dd8449afc086
children
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dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
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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.api;
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24
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25 /**
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26 * A handle that can be used to {@linkplain #call(Object[]) call} a native function.
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27 */
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28 public interface NativeFunctionHandle {
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29
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30 /**
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31 * Calls the native function.
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32 * <p>
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33 * The caller is responsible for ensuring {@code args} comply with the platform ABI (e.g. <a
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34 * href="http://www.uclibc.org/docs/psABI-x86_64.pdf"> Unix AMD64 ABI</a>). If the library
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35 * function has struct parameters, the fields of the struct must be passed as individual
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36 * arguments.
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37 *
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38 * @param args the arguments that will be passed to the native function
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39 * @return boxed return value of the function call
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40 */
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41 Object call(Object... args);
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42
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43 }