Mercurial > projects > dwt-win
annotate dwt/internal/Library.d @ 246:fd9c62a2998e
Updater SWT 3.4M7 to 3.4
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 01 Jul 2008 10:15:59 +0200 |
parents | 36f5cb12e1a2 |
children | da968414c383 |
rev | line source |
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194 | 1 /******************************************************************************* |
246 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * Port to the D programming language: |
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11 * Frank Benoit <benoit@tionex.de> |
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12 *******************************************************************************/ |
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13 module dwt.internal.Library; |
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14 |
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15 import tango.util.Convert; |
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16 import dwt.dwthelper.utils; |
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17 |
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18 // do it here, so it can be evaluated at compile time |
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19 // this saves a static ctor. |
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20 private int buildSWT_VERSION (int major, int minor) { |
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21 return major * 1000 + minor; |
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22 } |
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23 |
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24 |
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25 public class Library { |
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26 |
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27 /* DWT Version - Mmmm (M=major, mmm=minor) */ |
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28 |
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29 /** |
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30 * DWT Major version number (must be >= 0) |
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31 */ |
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32 static const int MAJOR_VERSION = 3; |
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33 |
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34 /** |
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35 * DWT Minor version number (must be in the range 0..999) |
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36 */ |
246 | 37 static const int MINOR_VERSION = 448; |
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38 |
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39 /** |
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40 * DWT revision number (must be >= 0) |
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41 */ |
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42 static const int REVISION = 0; |
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43 |
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44 /** |
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45 * The JAVA and DWT versions |
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46 */ |
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47 //public static const int JAVA_VERSION; |
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48 public static const int SWT_VERSION = .buildSWT_VERSION(MAJOR_VERSION, MINOR_VERSION); |
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49 |
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50 version( Windows ){ |
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51 static const String SEPARATOR = "\r\n"; |
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52 } |
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53 else { |
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54 static assert( false, "only windows supported for this port" ); |
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55 } |
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56 |
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57 |
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58 static int parseVersion(String aVersion) { |
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59 if (aVersion == null) return 0; |
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60 int major = 0, minor = 0, micro = 0; |
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61 int length = aVersion.length, index = 0, start = 0; |
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62 bool isDigit( char c ){ |
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63 return c >= '0' && c <= '9'; |
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64 } |
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65 while (index < length && isDigit(aVersion[index])) index++; |
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66 try { |
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67 if (start < length) major = to!(int)( aVersion[start .. index] ); |
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68 } catch (ConversionException e) {} |
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69 start = ++index; |
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70 while (index < length && isDigit(aVersion[index])) index++; |
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71 try { |
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72 if (start < length) minor = to!(int)(aVersion[start .. index]); |
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73 } catch (ConversionException e) {} |
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74 start = ++index; |
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75 while (index < length && isDigit(aVersion[index])) index++; |
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76 try { |
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77 if (start < length) micro = to!(int)(aVersion[start .. index]); |
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78 } catch (ConversionException e) {} |
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79 return buildJAVA_VERSION(major, minor, micro); |
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80 } |
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81 |
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82 /** |
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83 * Returns the Java version number as an integer. |
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84 * |
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85 * @param major |
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86 * @param minor |
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87 * @param micro |
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88 * @return the version |
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89 */ |
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90 public static int buildJAVA_VERSION (int major, int minor, int micro) { |
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91 return (major << 16) + (minor << 8) + micro; |
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92 } |
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93 |
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94 /** |
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95 * Returns the DWT version number as an integer. |
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96 * |
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97 * @param major |
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98 * @param minor |
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99 * @return the version |
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100 */ |
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101 public static int buildSWT_VERSION (int major, int minor) { |
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102 return .buildSWT_VERSION(major, minor); |
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103 } |
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104 /+ PORTING_LEFT |
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105 static bool extract (String fileName, String mappedName) { |
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106 FileOutputStream os = null; |
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107 InputStream is = null; |
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108 File file = new File(fileName); |
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109 try { |
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110 if (!file.exists ()) { |
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111 is = Library.class.getResourceAsStream ("/" + mappedName); //$NON-NLS-1$ |
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112 if (is != null) { |
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113 int read; |
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114 byte [] buffer = new byte [4096]; |
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115 os = new FileOutputStream (fileName); |
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116 while ((read = is.read (buffer)) != -1) { |
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117 os.write(buffer, 0, read); |
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118 } |
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119 os.close (); |
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120 is.close (); |
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121 if (!Platform.PLATFORM.equals ("win32")) { //$NON-NLS-1$ |
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122 try { |
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123 Runtime.getRuntime ().exec (new String []{"chmod", "755", fileName}).waitFor(); //$NON-NLS-1$ //$NON-NLS-2$ |
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124 } catch (Throwable e) {} |
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125 } |
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126 if (load (fileName)) return true; |
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127 } |
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128 } |
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129 } catch (Throwable e) { |
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130 try { |
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131 if (os != null) os.close (); |
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132 } catch (IOException e1) {} |
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133 try { |
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134 if (is != null) is.close (); |
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135 } catch (IOException e1) {} |
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136 } |
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137 if (file.exists ()) file.delete (); |
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138 return false; |
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139 } |
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140 |
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141 static bool load (String libName) { |
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142 try { |
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143 if (libName.indexOf (SEPARATOR) != -1) { |
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144 System.load (libName); |
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145 } else { |
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146 System.loadLibrary (libName); |
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147 } |
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148 return true; |
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149 } catch (UnsatisfiedLinkError e) {} |
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150 return false; |
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151 } |
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152 |
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153 /** |
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154 * Loads the shared library that matches the version of the |
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155 * Java code which is currently running. DWT shared libraries |
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156 * follow an encoding scheme where the major, minor and revision |
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157 * numbers are embedded in the library name and this along with |
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158 * <code>name</code> is used to load the library. If this fails, |
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159 * <code>name</code> is used in another attempt to load the library, |
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160 * this time ignoring the DWT version encoding scheme. |
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161 * |
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162 * @param name the name of the library to load |
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163 */ |
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164 public static void loadLibrary (String name) { |
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165 loadLibrary (name, true); |
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166 } |
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167 |
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168 /** |
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169 * Loads the shared library that matches the version of the |
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170 * Java code which is currently running. DWT shared libraries |
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171 * follow an encoding scheme where the major, minor and revision |
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172 * numbers are embedded in the library name and this along with |
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173 * <code>name</code> is used to load the library. If this fails, |
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174 * <code>name</code> is used in another attempt to load the library, |
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175 * this time ignoring the DWT version encoding scheme. |
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176 * |
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177 * @param name the name of the library to load |
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178 * @param mapName true if the name should be mapped, false otherwise |
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179 */ |
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180 public static void loadLibrary (String name, boolean mapName) { |
213 | 181 String prop = System.getProperty ("sun.arch.data.model"); //$NON-NLS-1$ |
182 if (prop is null) prop = System.getProperty ("com.ibm.vm.bitmode"); //$NON-NLS-1$ | |
183 if (prop !is null) { | |
184 if ("32".equals (prop)) { //$NON-NLS-1$ | |
185 if (0x1FFFFFFFFL is (int /*long*/)0x1FFFFFFFFL) { | |
186 throw new UnsatisfiedLinkError ("Cannot load 64-bit DWT libraries on 32-bit JVM"); //$NON-NLS-1$ | |
187 } | |
188 } | |
189 if ("64".equals (prop)) { //$NON-NLS-1$ | |
190 if (0x1FFFFFFFFL !is (int /*long*/)0x1FFFFFFFFL) { | |
191 throw new UnsatisfiedLinkError ("Cannot load 32-bit DWT libraries on 64-bit JVM"); //$NON-NLS-1$ | |
192 } | |
193 } | |
194 } | |
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195 |
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196 /* Compute the library name and mapped name */ |
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197 String libName1, libName2, mappedName1, mappedName2; |
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198 if (mapName) { |
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199 String version = System.getProperty ("swt.version"); //$NON-NLS-1$ |
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200 if (version == null) { |
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201 version = "" + MAJOR_VERSION; //$NON-NLS-1$ |
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202 /* Force 3 digits in minor version number */ |
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203 if (MINOR_VERSION < 10) { |
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204 version += "00"; //$NON-NLS-1$ |
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205 } else { |
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206 if (MINOR_VERSION < 100) version += "0"; //$NON-NLS-1$ |
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207 } |
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208 version += MINOR_VERSION; |
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209 /* No "r" until first revision */ |
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210 if (REVISION > 0) version += "r" + REVISION; //$NON-NLS-1$ |
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211 } |
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212 libName1 = name + "-" + Platform.PLATFORM + "-" + version; //$NON-NLS-1$ //$NON-NLS-2$ |
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213 libName2 = name + "-" + Platform.PLATFORM; //$NON-NLS-1$ |
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214 mappedName1 = System.mapLibraryName (libName1); |
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215 mappedName2 = System.mapLibraryName (libName2); |
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216 } else { |
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217 libName1 = libName2 = mappedName1 = mappedName2 = name; |
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218 } |
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219 |
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220 /* Try loading library from swt library path */ |
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221 String path = System.getProperty ("swt.library.path"); //$NON-NLS-1$ |
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222 if (path != null) { |
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223 path = new File (path).getAbsolutePath (); |
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224 if (load (path + SEPARATOR + mappedName1)) return; |
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225 if (mapName && load (path + SEPARATOR + mappedName2)) return; |
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226 } |
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227 |
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228 /* Try loading library from java library path */ |
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229 if (load (libName1)) return; |
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230 if (mapName && load (libName2)) return; |
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231 |
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232 /* Try loading library from the tmp directory if swt library path is not specified */ |
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233 if (path == null) { |
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234 path = System.getProperty ("java.io.tmpdir"); //$NON-NLS-1$ |
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235 path = new File (path).getAbsolutePath (); |
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236 if (load (path + SEPARATOR + mappedName1)) return; |
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237 if (mapName && load (path + SEPARATOR + mappedName2)) return; |
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238 } |
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239 |
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240 /* Try extracting and loading library from jar */ |
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241 if (path != null) { |
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242 if (extract (path + SEPARATOR + mappedName1, mappedName1)) return; |
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243 if (mapName && extract (path + SEPARATOR + mappedName2, mappedName2)) return; |
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244 } |
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245 |
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246 /* Failed to find the library */ |
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247 throw new UnsatisfiedLinkError ("no " + libName1 + " or " + libName2 + " in swt.library.path, java.library.path or the jar file"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
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248 } |
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249 +/ |
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250 } |