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annotate graal/com.oracle.nfi/src/com/oracle/nfi/api/NativeFunctionInterface.java @ 20973:cb406df0ecc3

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Visit CompositeValues manually
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Tue, 14 Apr 2015 11:36:42 -0700
parents e92bc7d8e2dd
children 2f92172fa320
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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
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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 * Interface to get a {@linkplain NativeFunctionHandle handle} or {@linkplain NativeFunctionPointer
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27 * pointer} to a native function or a {@linkplain NativeLibraryHandle handle} to an open native
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28 * library.
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29 */
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30 public interface NativeFunctionInterface {
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31
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32 /**
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33 * Resolves and returns a handle to an open native library. This method will open the library
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34 * only if it is not already open.
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35 *
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36 * @param libPath the absolute path to the library
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37 * @return the resolved library handle
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38 * @throws UnsatisfiedLinkError if the library could not be found or opened
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39 */
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40 NativeLibraryHandle getLibraryHandle(String libPath);
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41
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42 /**
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43 * Determines if the underlying platform/runtime supports the notion of a default library search
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44 * path. For example, on *nix systems, this is typically defined by the {@code LD_LIBRARY_PATH}
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45 * environment variable.
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46 */
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47 boolean isDefaultLibrarySearchSupported();
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48
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49 /**
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50 * Resolves the function pointer {@code NativeFunctionPointer} of a native function.
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51 *
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52 * @param libraries the ordered list of libraries to search for the function
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53 * @param name the name of the function to be resolved
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54 * @return a pointer to the native function, or <code>null</code> if the function pointer could
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55 * not be resolved
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56 */
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57 NativeFunctionPointer getFunctionPointer(NativeLibraryHandle[] libraries, String name);
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58
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59 /**
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60 * Resolves a function name to a {@linkplain NativeFunctionHandle handle} that can be called
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61 * with a given signature. The signature contains the types of the arguments that will be passed
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62 * to the handle when it is {@linkplain NativeFunctionHandle#call(Object...) called}.
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63 *
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64 * @param library the handle to a resolved library
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65 * @param name the name of the function to be resolved
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66 * @param returnType the type of the return value
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67 * @param argumentTypes the types of the arguments
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68 * @return the function handle of the native function, or <code>null</code> if the function
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69 * handle could not be resolved
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70 */
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71 NativeFunctionHandle getFunctionHandle(NativeLibraryHandle library, String name, Class<?> returnType, Class<?>... argumentTypes);
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72
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73 /**
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74 * Resolves a function pointer to a {@linkplain NativeFunctionHandle handle} that can be called
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75 * with a given signature. The signature contains the types of the arguments that will be passed
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76 * to the handle when it is {@linkplain NativeFunctionHandle#call(Object...) called}.
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77 *
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78 * @param functionPointer a function pointer
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79 * @param returnType the type of the return value
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80 * @param argumentTypes the types of the arguments
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81 * @return the function handle of the native function, or <code>null</code> if the function
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82 * handle could not be resolved
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83 */
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84 NativeFunctionHandle getFunctionHandle(NativeFunctionPointer functionPointer, Class<?> returnType, Class<?>... argumentTypes);
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85
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86 /**
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87 * Resolves a function name to a {@linkplain NativeFunctionHandle handle} that can be called
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88 * with a given signature. The signature contains the types of the arguments that will be passed
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89 * to the handle when it is {@linkplain NativeFunctionHandle#call(Object...) called}.
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90 *
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91 * @param libraries the ordered list of libraries to search for the function
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92 * @param name the name of the function to be resolved
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93 * @param returnType the type of the return value
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94 * @param argumentTypes the types of the arguments
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95 * @return the function handle of the native function, or <code>null</code> if the function
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96 * handle could not be resolved
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97 */
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98 NativeFunctionHandle getFunctionHandle(NativeLibraryHandle[] libraries, String name, Class<?> returnType, Class<?>... argumentTypes);
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99
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100 /**
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101 * Resolves a function name to a {@linkplain NativeFunctionHandle handle} that can be called
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102 * with a given signature. The signature contains the types of the arguments that will be passed
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103 * to the handle when it is {@linkplain NativeFunctionHandle#call(Object...) called}.
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104 *
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105 * @param name the name of the function to be resolved
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106 * @param returnType the type of the return value
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107 * @param argumentTypes the types of the arguments
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108 * @return the function handle of the native function, or <code>null</code> if default library
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109 * searching is not {@linkplain #isDefaultLibrarySearchSupported() supported} or if the
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110 * function could not be resolved
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111 */
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112 NativeFunctionHandle getFunctionHandle(String name, Class<?> returnType, Class<?>... argumentTypes);
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113
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114 /**
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115 * Creates a {@link NativeFunctionPointer} from a raw value.
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116 *
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117 * @param rawValue raw function pointer
dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
Matthias Grimmer <grimmer@ssw.jku.at>
parents:
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118 * @return {@code NativeFunctionPointer} for {@code rawValue}
dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
Matthias Grimmer <grimmer@ssw.jku.at>
parents:
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119 */
dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
Matthias Grimmer <grimmer@ssw.jku.at>
parents:
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120 NativeFunctionPointer getNativeFunctionPointerFromRawValue(long rawValue);
dd8449afc086 GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
Matthias Grimmer <grimmer@ssw.jku.at>
parents:
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121 }